Rework the Primary Bulkhead Sealing – 2021 Mercedes-Benz S-Class

SEOCONTENT-START

Recall Campaign Initial Notification

DATE: March 31, 2023

May, 2023
Thi: notiee applies to your vehiele, VIN:
Repair the Primary Bulkhead Sealing
MBUSA ID: 2023040009, NHTSA Reeall ID: 23V200
• Remedy parts are now available for your vehicle.
• Schedule an appointment with your aut horized
Mercedes-Benz dealership as soon as possible.
• This repair will be provided FREE of charge.
Dear Mercedes-Benz Owner:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has decided that a defect which relates to
motor vehicle safety exists in certain model year (“MY”) 2021 Mercedes-Benz S580 and Maybach S580 veh icles. Our
records indicate that your veh icle is included in the affected population.
~
What i: the i::ue?
The primary bulkhead that separates the engine compartment from the passenger compartment may not
have been properly sealed, which may allow water to enter into the front footwells. This may cause corrosion
and/or short circuits to electrical components, and may disable certain safety features, including seat belt
tightening and seat adjustments (PreSafe system). Disabled safety features can increase the risk of injury
in the event of a crash. When the issue occurs, the customer might notice damp carpets in the front footwells
or fogged windows. The driver might also be made aware through a warning message in the instrument
cluster.
What will your Mereede:-Benz Dealership do?
An authorized Mercedes-Benz dealersh ip will repair the primary bulkhead sealing on the affected veh icles.
Thi: vehiele repair will be provided at no eo:t to you. While the repair time can be less than 2 hour:,
your dealership can provide you with a better estimate of the overall t ime for th is visit. As a matter of normal
service process, the authorized Mercedes-Benz dealership will also check for other repair measures that
might be applicable to your vehicle, which may increase the required working time. You will not be charged
for other services or repairs unless so requested.
Step: to take.
• Find your nearest authorized Mercedes-Benz dealership at mbu:a.eom/ reeall to schedule your recall
repair.
• Please mention you are scheduling an appointment for Mercedes-Benz Recall Campaign 2023040009.
• You may be asked for your VIN, which for your convenience is located at the top of this letter.
We apologize for any inconvenience th is may have caused and look forward to taking care of this important safety recall
immediately.
Sincerely,
Mercedes-Benz USA
What if I no longer own or drive the vehiele or would like to update my eontaet information?
In the event you need to update your contact information or have updates concerning the vehicle,
please visit mbusa.com/ recalls (or scan the QR Code to the left) and submit your VIN using the VIN
recall lookup tool and fill out the “Recall Contact Information” section on the website. If possible,
• please provide any contact information of the current owner/driver so we can contact them.
Additional Information for Owner: :
A VIN-based recall lookup tool is available at mbu: a.eom/ reeall:, which can be used to check whether a veh icle has
been subject to a safety recall, or had the remedy performed. Should you have any questions or encounter any difficulty
regarding th is Recall Campaign, please contact an authorized Mercedes-Benz dealership.
Should an authorized Mercedes-Benz dealersh ip be unable to address your concerns please contact us at 1-(800) FORMERCEDES
(1-800-367-63 72). We are always happy to hear from you.
If this is a leased vehicle and the lessor and registered owner receive this notice, please forward this information by first
class mail to the lessee within 10 business days to comply with Federal Regulations.
If an authorized Mercedes-Benz dealer for any reason is unable to remedy the situation without charge, or within a
reasonable amount of t ime, Pursuant to law 49 U.S.C. Chapter 301, you may submit a complaint to the Administrator,
National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, D.C. 20590 or call the tollfree
Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https://www.safercar.gov.

**************************************************************************************************************

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany
One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance & Analysis
IMPORTANT RECALL CAMPAIGN UPDATE
Please see the attached documents related to the campaign listed above.
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers
FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services
RE: Recall Campaign Launch Notification
Rework the Primary Bulkhead Sealing
MY21 S-Class (223 platform)
DATE: April 28, 2023
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany
One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance & Analysis
Recall Campaign Initial Notification
April 28, 2023
Campaign No. :
NHTSA ID
Campaign Desc. :
Rework the Primary Bulkhead Sealing
2023040009
23V200
23P6290102
This is to notify you of the Recall Campaign Launch to rework the primary bulkhead sealing on 6 Model Year (“MY”) 2021 S-Class (223 platform) vehicles. The recall campaign will be visible on the www.NHTSA.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “OPEN” on April 28, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion. In this case, water exposure might lead to water ingress into the vehicle’s interior and cause corrosion on electrical contacts and/or short circuits or leakage currents. As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which could increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle. When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster.
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealership will rework the primary bulkhead sealing on the affected vehicles.
Parts
The remedy is available and can be performed.
Vehicles Affected
Vehicle Model Year(s)
2021
Vehicle Model
S-Class
Vehicle Populations
Total Recall Population
6
Total Vehicles in Dealer Inventory
0
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry Portal. Once the repair is complete the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s).
Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new vehicles covered by this notification until the vehicle has been repaired.
Next Steps/Notes
Customer Notification Timeline
Customer letters will be mailed on or before May 12, 2023.
AOMS/SOMS
AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet Partners
This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer.
Customer Reimbursement
Customer reimbursement is being offered for this campaign.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.
2
Campaign No. 2023040009, April 2023
TO: ALL MERCEDES-BENZ CENTERS
SUBJECT: Model S-Class (223 platform)
Model Year 2021
Rework the Primary Bulkhead Sealing
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion. In this case, water exposure might lead to water ingress into the vehicle’s interior and cause corrosion on electrical contacts and/or short circuits or leakage currents. As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which could increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle. When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster. An authorized Mercedes-Benz dealership will rework the primary bulkhead sealing on the affected vehicles.
Prior to performing this Campaign:
 VMI must be checked before performing campaigns to verify that the campaign is required on a specific vehicle. Always check for any other open campaigns, and perform accordingly.
 Please review the entire Campaign bulletin and follow the repair procedure exactly as described.
Approximately 6 vehicles are affected.
Order No. P-RC- 2023040009
2
P-RC- 2023040009
Rework the Primary Bulkhead Sealing
Work Procedure
1. Remove left and right wiper arms.
For basic data, see AR82.30-P-6100S
2. Remove air/water duct under windshield and struts (A, B and C, Figure 1). For basic data, see AR82.30-P-0001S
Figure 1
3
P-RC- 2023040009
3. Check removed air/water duct.
Drain (1, Figure 2) of air/water duct at driver’s side must be closed.
If drain (2, Figure 2.1) is open, it must be replaced.
Figure 2 Drain of air/water duct OK
Figure 1.1 Drain of air/water duct not OK
4
P-RC- 2023040009
4. Unscrew ground line at firewall (Figure 3).
Figure 2
5. Cut off an approx. 2 cm wide section of insulating mat as shown (Figure 4).
Cut off insulating mat below ground bolt.
Figure 3
5
P-RC- 2023040009
6. Bond insulating mat at cut edge to firewall using Teroson adhesive and also coat cut edge with Teroson adhesive (Figure 5, 6).
Apply adhesive with a disposable glove.
Figure 4, adhesive application example
Figure 5
6
P-RC- 2023040009
7. Screw ground line onto firewall again (Figure 7).
Figure 6
8. From the firewall side, feed water deflector under wiper linkage until it is positioned as shown (Figure 8, 9).
Figure 8
7
P-RC- 2023040009
Figure 7
9. Water deflector is moved under wiper linkage towards vehicle center (Figure 10) until corner of water deflector is in contact with mounting support of strut.
Figure 8
10. On the driver’s side, the water deflector is folded in directly behind the end of the butyl tape so that the fold is in contact with the brake booster (Figure 11).
Figure 9
8
P-RC- 2023040009
11. Fold water deflector at front side as shown so that hoses are covered (Figure 12).
Figure 10
12. Engage water deflector as shown at mount of wiper linkage (Figure 13, 14).
Figure 11
9
P-RC- 2023040009
Figure 12
13. Remove wax paper from butyl tape and bond water deflector to firewall (Figure 15). Firmly press on water deflector. First position corner of water deflector (Figure 16) and press onto firewall.
Figure 13
10
P-RC- 2023040009
Figure 14
14. Install struts (B and C, Figure 17). For basic data, see AR82.30-P-0001S
Figure 15
15. Wrap water deflector around strut (C, Figure 18) so that strut is tightly enclosed.
Figure 16
11
P-RC- 2023040009
16. Remove butyl tape and bond tongue of water deflector under tension to strut (C, Figure 19, 20 and 21) so that it fits closely with strut.
Figure 17, with heated washer fluid reservoir
Figure 18, with heated washer fluid reservoir
12
P-RC- 2023040009
Figure 19, without heated washer fluid reservoir
17. Install strut (A, Figure 22). For basic data, see AR82.30-P-0001S
Figure 22
13
P-RC- 2023040009
18. Check whether water deflector is in contact at relevant locations (Figure 23), and correct if necessary.
Figure 20
18. Install air/water duct and wiper arms (Figure 24). For basic data, see AR82.30-P-6100S
Figure 21
14
P-RC- 2023040009
Primary Parts Information
Qty. Part Name Part Number
As required (1)
Air/water duct LHD under windshield wiper with code 874
A 223 831 23 00
As required (1)
Air/water duct LHD under windshield wiper without code 874
A 223 831 62 00
1
Sealing adhesive
A 003 989 01 71 09
1
Water deflector LHD
A 223 835 28 00
Small parts such as screws, lock nuts, sealing rings, cable ties, fluids, sealant, etc. are not listed in the parts list. The required small parts are taken into account in the budgeting.
__________________________________________________________________________________________________
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Damage Code Operation Number Description Labor Time (hrs.)
62 901 02
12-1678
Retrofit water deflector at firewall
1.7 Note: Always check Xentry Operation Time (XOT) for the current OP-Code times. Labor times are subject to change and updates may not be reflected in this document.

**************************************************************************************************************

Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany
One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance & Analysis
IMPORTANT RECALL CAMPAIGN INFORMATION
Please see the attached documents related to the campaign listed above.
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers
FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services
RE: Recall Campaign Initial Notification
Rework the Primary Bulkhead Sealing
MY21 S-Class (223 platform)
DATE: March 31, 2023
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Com pany
One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance & Analysis
Recall Campaign Initial Notification
March 31, 2023
Campaign No. :
NHTSA ID
Campaign Desc. :
Rework the Primary Bulkhead Sealing
TBD
23V200
23P2197594
This is to notify you of a Recall Campaign to rework the primary bulkhead sealing on 6 Model Year (“MY”) 2021 S-Class (223 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs were flagged in VMI as “PENDING” on March 31, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion. In this case, high water exposure might lead to water ingress into the vehicle’s interior and cause corrosion on the electrical contacts and/or short circuits or leakage currents. As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which could increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle. When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster.
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealership will rework the sealing of the primary bulkhead on the affected vehicles.
Parts
Remedy is not available at this time.
Vehicles Affected
Vehicle Model Year(s)
2021
Vehicle Model
S-Class
Vehicle Populations
Total Recall Population
6
Total Vehicles in Dealer Inventory
0
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new vehicles in dealer inventory covered by this notification until the vehicle has been repaired. Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in NetStar VMI and Xentry. Once the repair is complete, the vehicle may be sold or leased.
Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired. As a matter of normal service process, please check for other repair measures which might be applicable to the vehicle(s).
Additionally, given this notice, it is a violation of Federal Law for rental car companies to rent vehicles covered by this notification until the vehicle has been repaired.
Next Steps/Notes
Customer Notification Timeline
Customer letters will be mailed on or before May 23, 2023.
AOMS/SOMS
AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet Partners
This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-200
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC JUL 27, 2023 NHTSA Recall No. : 23V-200 Manufacturer Recall No. : 2023040009 Manufacturer Information :
Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway
Jacksonville FL 32218
Company phone : 1-877-496-3691
Population :
Number of potentially involved : 6
Estimated percentage with defect : 100 %
Vehicle Information :
Vehicle 1 : 2021-2021 Mercedes-Benz S580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz S-Class 2 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential
Vehicle 2 : 2021-2021 Mercedes-Benz S580 Maybach Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz Maybach S-Class 4 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-200 Page 2 Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In this case, high water exposure might lead to water ingress into the
vehicle’s interior and cause corrosion on the electrical contacts and/or short circuits or leakage currents.
As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which may increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle.
Description of the Cause : Due to a deviation in the development process, the specifications for water intrusion requirements for the primary bulkhead might not be met. Identification of Any Warning
that can Occur : When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster. Involved Components : Component Name 1 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238312300 Component Name 2 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238316200 Supplier Identification : Component Manufacturer
Name : HEYCO-WERK Süd Heynen GmbH & Co. KG Address : Ernst-Heynen-Str. 1
Tittling Foreign States 94104 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200 Page 3 Country : Germany Chronology :
In July 2020, MBAG’s standard quality control testing found that under certain conditions, water might ingress into the vehicle’s interior. MBAG immediately initiated analyses to determine the root cause. These analyses indicated a leak in the area of the water drain at the primary bulkhead.
In October 2020, improvements were implemented in the production to the water drain and the sealing of the primary bulkhead in order to prevent potential water leakage into the vehicle.
From October 2020 until June 2021, MBAG monitored and analyzed production vehicles to validate the effectiveness of the countermeasures. Subsequently, MBAG initiated plant actions to identify potentially affected vehicles.
In parallel, MBAG investigated the potential effects of the observed issue on electrical connections and components in the area surrounding the front wall. This complex analysis of potential consequences continued until mid 2022.
Throughout MBAG’s investigations and review, it has received no field reports of water ingress due to the seal of the front wall, worldwide. Nonetheless, MBAG conducted internal studies to determine whether the observed issue could occur in the field. These studies concluded in early 2023 that in rare scenarios involving high water exposure, water leakage through the primary bulkhead could occur in certain vehicles manufactured prior to the drain and sealing changes implemented in production.
In early 2023, MBAG reviewed production records and plant actions to identify the population of potentially affected vehicles.
On March 17, 2023, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. MBAG can confirm there are no warranty claims, field or service reports, and other information (such as the numbers of deaths and/or injuries) related to this issue in the USA. Description of Remedy :
Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will
rework the sealing of the primary bulkhead front wall on the affected vehicles.
Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty How Remedy Component Differs from Recalled Component : The sealing of the front wall meet the specifications for water intrusion Remedy Parts:
SEALING ADHESIVE A003989017109 PROTECTIVE COVER LL A2238352800 WATER DRAIN MI LL A2238312300 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
WATER DRAIN MI LL A2238316200 Identify How/When Recall Condition was Corrected in Production : The introduction of an optimized sealing of the primary bulkhead ensures that this issue can no longer occur from August 1, 2022 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 31, 2023. Owners will be notified of the voluntary recall campaign on May 12, 2023.
A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 31, 2023 – NR Planned Owner Notification Date : MAY 12, 2023 – NR
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-200
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC APR 28, 2023 NHTSA Recall No. : 23V-200 Manufacturer Recall No. : 2023040009 Manufacturer Information :
Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway
Jacksonville FL 32218
Company phone : 1-877-496-3691
Population :
Number of potentially involved : 6
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2021-2021 Mercedes-Benz S580 Maybach Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz Maybach S-Class 4 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2021-2021 Mercedes-Benz S580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz S-Class 2 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-200 Page 2 Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In this case, high water exposure might lead to water ingress into the
vehicle’s interior and cause corrosion on the electrical contacts and/or short circuits or leakage currents.
As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which may increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle.
Description of the Cause : Due to a deviation in the development process, the specifications for water intrusion requirements for the primary bulkhead might not be met. Identification of Any Warning
that can Occur : When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster. Involved Components : Component Name 1 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238312300 Component Name 2 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238316200 Supplier Identification : Component Manufacturer
Name : Odenwald-Chemie GmbH Address : Hirschhorner Straße 47
Neckarsteinach Foreign States 69239 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200 Page 3 Country : Germany Chronology :
In July 2020, MBAG’s standard quality control testing found that under certain conditions, water might ingress into the vehicle’s interior. MBAG immediately initiated analyses to determine the root cause. These analyses indicated a leak in the area of the water drain at the primary bulkhead.
In October 2020, improvements were implemented in the production to the water drain and the sealing of the primary bulkhead in order to prevent potential water leakage into the vehicle.
From October 2020 until June 2021, MBAG monitored and analyzed production vehicles to validate the effectiveness of the countermeasures. Subsequently, MBAG initiated plant actions to identify potentially affected vehicles.
In parallel, MBAG investigated the potential effects of the observed issue on electrical connections and components in the area surrounding the front wall. This complex analysis of potential consequences continued until mid 2022.
Throughout MBAG’s investigations and review, it has received no field reports of water ingress due to the seal of the front wall, worldwide. Nonetheless, MBAG conducted internal studies to determine whether the observed issue could occur in the field. These studies concluded in early 2023 that in rare scenarios involving high water exposure, water leakage through the primary bulkhead could occur in certain vehicles manufactured prior to the drain and sealing changes implemented in production.
In early 2023, MBAG reviewed production records and plant actions to identify the population of potentially affected vehicles.
On March 17, 2023, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. MBAG can confirm there are no warranty claims, field or service reports, and other information (such as the numbers of deaths and/or injuries) related to this issue in the USA. Description of Remedy :
Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will
rework the sealing of the primary bulkhead front wall on the affected vehicles.
Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty How Remedy Component Differs from Recalled Component : The sealing of the front wall meet the specifications for water intrusion Remedy Parts:
SEALING ADHESIVE A003989017109 PROTECTIVE COVER LL A2238352800 WATER DRAIN MI LL A2238312300 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
WATER DRAIN MI LL A2238316200 Identify How/When Recall Condition was Corrected in Production : The introduction of an optimized sealing of the primary bulkhead ensures that this issue can no longer occur from August 1, 2022 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 31, 2023. Owners will be notified of the voluntary recall campaign on May 12, 2023.
A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 31, 2023 – NR Planned Owner Notification Date : MAY 12, 2023 – NR
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-200
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC MAR 24, 2023 NHTSA Recall No. : 23V-200 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway
Jacksonville FL 32218
Company phone : 1-877-496-3691
Population :
Number of potentially involved : 6
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2021-2021 Mercedes-Benz S580 Maybach Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz Maybach S-Class 4 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2021-2021 Mercedes-Benz S580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz S-Class 2 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-200 Page 2 Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In this case, high water exposure might lead to water ingress into the
vehicle’s interior and cause corrosion on the electrical contacts and/or short circuits or leakage currents.
As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which may increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle.
Description of the Cause : Due to a deviation in the development process, the specifications for water intrusion requirements for the primary bulkhead might not be met. Identification of Any Warning
that can Occur : When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster. Involved Components : Component Name 1 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238312300 Component Name 2 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238316200 Supplier Identification : Component Manufacturer
Name : Odenwald-Chemie GmbH Address : Hirschhorner Straße 47
Neckarsteinach Foreign States 69239 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200 Page 3 Country : Germany Chronology :
In July 2020, MBAG’s standard quality control testing found that under certain conditions, water might ingress into the vehicle’s interior. MBAG immediately initiated analyses to determine the root cause. These analyses indicated a leak in the area of the water drain at the primary bulkhead.
In October 2020, improvements were implemented in the production to the water drain and the sealing of the primary bulkhead in order to prevent potential water leakage into the vehicle.
From October 2020 until June 2021, MBAG monitored and analyzed production vehicles to validate the effectiveness of the countermeasures. Subsequently, MBAG initiated plant actions to identify potentially affected vehicles.
In parallel, MBAG investigated the potential effects of the observed issue on electrical connections and components in the area surrounding the front wall. This complex analysis of potential consequences continued until mid 2022.
Throughout MBAG’s investigations and review, it has received no field reports of water ingress due to the seal of the front wall, worldwide. Nonetheless, MBAG conducted internal studies to determine whether the observed issue could occur in the field. These studies concluded in early 2023 that in rare scenarios involving high water exposure, water leakage through the primary bulkhead could occur in certain vehicles manufactured prior to the drain and sealing changes implemented in production.
In early 2023, MBAG reviewed production records and plant actions to identify the population of potentially affected vehicles.
On March 17, 2023, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. MBAG can confirm there are no warranty claims, field or service reports, and other information (such as the numbers of deaths and/or injuries) related to this issue in the USA. Description of Remedy :
Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will
rework the sealing of the primary bulkhead front wall on the affected vehicles.
Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty How Remedy Component Differs from Recalled Component : The sealing of the front wall meet the specifications for water intrusion Remedy Parts:
SEALING ADHESIVE A003989017109 PROTECTIVE COVER LL A2238352800 WATER DRAIN MI LL A2238312300 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
WATER DRAIN MI LL A2238316200 Identify How/When Recall Condition was Corrected in Production : The introduction of an optimized sealing of the primary bulkhead ensures that this issue can no longer occur from August 1, 2022 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 31, 2023. Owners will be notified of the voluntary recall campaign before May 23, 2023.
A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 31, 2023 – NR Planned Owner Notification Date : MAY 23, 2023 – NR
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-200
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC JUL 27, 2023 NHTSA Recall No. : 23V-200 Manufacturer Recall No. : 2023040009 Manufacturer Information :
Manufacturer Name : Mercedes-Benz USA, LLC Address : 13470 International Parkway
Jacksonville FL 32218
Company phone : 1-877-496-3691
Population :
Number of potentially involved : 6
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2021-2021 Mercedes-Benz S580 Maybach Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz Maybach S-Class 4 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2021-2021 Mercedes-Benz S580 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz S-Class 2 vehicles
The recall population was determined through production records.
For vehicles outside of the recall population the primary bulkhead sealing meets the specifications for water intrusion Production Dates : APR 22, 2020 – OCT 28, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-200 Page 2 Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2021 S-Class (223 platform) vehicles, the primary bulkhead sealing might not meet the specifications for water intrusion
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : In this case, high water exposure might lead to water ingress into the
vehicle’s interior and cause corrosion on the electrical contacts and/or short circuits or leakage currents.
As a result, the function of the PreSafe system (e.g. seatbelt tightening and seat adjustment) might be impaired which may increase the risk of injury in the event of a crash. In addition, it may not be possible to restart a parked vehicle.
Description of the Cause : Due to a deviation in the development process, the specifications for water intrusion requirements for the primary bulkhead might not be met. Identification of Any Warning
that can Occur : When the issue occurs, the customer might notice damp carpets in the front footwells or fogged windows. The driver might also be made aware through a warning message in the instrument cluster. Involved Components : Component Name 1 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238312300 Component Name 2 : WATER DRAIN MI LL Component Description : WATER DRAIN MI LL Component Part Number : A2238316200 Supplier Identification : Component Manufacturer
Name : HEYCO-WERK Süd Heynen GmbH & Co. KG Address : Ernst-Heynen-Str. 1
Tittling Foreign States 94104 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200 Page 3 Country : Germany Chronology :
In July 2020, MBAG’s standard quality control testing found that under certain conditions, water might ingress into the vehicle’s interior. MBAG immediately initiated analyses to determine the root cause. These analyses indicated a leak in the area of the water drain at the primary bulkhead.
In October 2020, improvements were implemented in the production to the water drain and the sealing of the primary bulkhead in order to prevent potential water leakage into the vehicle.
From October 2020 until June 2021, MBAG monitored and analyzed production vehicles to validate the effectiveness of the countermeasures. Subsequently, MBAG initiated plant actions to identify potentially affected vehicles.
In parallel, MBAG investigated the potential effects of the observed issue on electrical connections and components in the area surrounding the front wall. This complex analysis of potential consequences continued until mid 2022.
Throughout MBAG’s investigations and review, it has received no field reports of water ingress due to the seal of the front wall, worldwide. Nonetheless, MBAG conducted internal studies to determine whether the observed issue could occur in the field. These studies concluded in early 2023 that in rare scenarios involving high water exposure, water leakage through the primary bulkhead could occur in certain vehicles manufactured prior to the drain and sealing changes implemented in production.
In early 2023, MBAG reviewed production records and plant actions to identify the population of potentially affected vehicles.
On March 17, 2023, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. MBAG can confirm there are no warranty claims, field or service reports, and other information (such as the numbers of deaths and/or injuries) related to this issue in the USA. Description of Remedy :
Description of Remedy Program : As a precautionary measure, an authorized Mercedes-Benz dealership will
rework the sealing of the primary bulkhead front wall on the affected vehicles.
Pursuant to 49 C.F.R. § 577.11(e), MBUSA does not plan to provide notice about pre-notice reimbursement to owners since none of the involved vehicles would have been previously subject to the condition described and all remain covered under the new vehicle warranty How Remedy Component Differs from Recalled Component : The sealing of the front wall meet the specifications for water intrusion Remedy Parts:
SEALING ADHESIVE A003989017109 PROTECTIVE COVER LL A2238352800 WATER DRAIN MI LL A2238312300 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-200
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
WATER DRAIN MI LL A2238316200 Identify How/When Recall Condition was Corrected in Production : The introduction of an optimized sealing of the primary bulkhead ensures that this issue can no longer occur from August 1, 2022 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 31, 2023. Owners will be notified of the voluntary recall campaign on May 12, 2023.
A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 31, 2023 – NR Planned Owner Notification Date : MAY 12, 2023 – NR
* NR – Not Reported

SEOCONTENT-END