Missing Brake Inspection Gauge – 2019-2021 Mercedes-Benz A-Class, CLA, GLA & GLB

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IMPORTANT SAFETY RECALL
Mercedes-Benz USA, LLC
A Mercedes-Benz Group AG Company
One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372
This notice applies to your vehicle, VIN: WDBRFXXXXXNNNNMMM
Interim Letter: Install Inspection Gauge and Supplemental Booklet for Checking Brake Pads
NHTSA Recall ID: 23V732
Customer Name
13470 International Parkway
Jacksonville, FL 32218
December, 2023
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 certain model year 2019–2021 A-Class, CLA, GLA, and GLB vehicles fail to conform to Federal Motor Vehicle Safety Standard (“FMVSS”) No. 135 “Light Vehicle Brake Systems.” Our records indicate that your vehicle is included in the affected population.
What is the issue?
The vehicles may not be equipped with an inspection gauge to check the wear of the rear
brake pads. In addition, information for using this inspection gauge might not be included in the Operator’s Manual. Driving with worn brake pads can reduce braking ability, increasing the risk of a crash.
.
Unfortunately, the remedy is not yet available. We are working to obtain the necessary items to address this important safety recall as quickly as possible. When the remedy, to install an inspection guage and provide a supplemental booklet for the owner’s manual, becomes available, we will send you another letter informing you to schedule an appointment with an authorized Mercedes-Benz dealer to have your vehicle repaired, at no cost to you.
.
Should you have any concerns or questions regarding your vehicle before you receive the next letter when the remedy becomes available, please contact 1-(800) FOR-MERCEDES (1-800-367-6372).
We apologize for any inconvenience this may have caused and look forward to taking care of this important safety recall immediately.
Sincerely,
Mercedes-Benz USA
IMPORTANT SAFETY RECALL
Mercedes-Benz USA, LLC
A Mercedes-Benz Group AG Company
One Mercedes-Benz Drive
Sandy Springs, GA 30328
Phone: (800) 367-6372
What if I no longer own or drive the vehicle or would like to update my contact information?
In the event you need to update your contact information or have updates concerning the vehicle, please visit www.mbusa.com/recall (or scan the QR Code to the left), submit your VIN using the VIN recall lookup tool, and complete 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 Owners:
A VIN-based recall lookup tool is available at www.mbusa.com/recall, which can be used to check whether a vehicle has been subject to a safety recall, or had the remedy performed. Should you have any questions or encounter any difficulty regarding this recall, please contact an authorized Mercedes-Benz dealer.
Should an authorized Mercedes-Benz dealer be unable to address your concerns, please contact us at 1-(800) FOR-MERCEDES (1-800-367-6372). 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 time, 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 toll-free Auto Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153); or go to https://www.safercar.gov.

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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
Senior Manager, Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers
FROM: Gregory Gunther, Senior Manager, Vehicle Compliance and Analysis, Engineering Services
RE: Recall Campaign Initial Notification
Add Inspection Gauge and Supplemental Booklet for Checking of Brake Pads
MY19-21 A-Class, CLA, GLA and GLB (177, 118, 247 platform)
DATE: November 8, 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
November 8, 2023
Campaign No. :
NHTSA ID
Campaign Desc. :
Add Inspection Gauge and Supplemental Booklet for Checking of Brake Pads
TBA
23V732
23P2197642
This is to notify you of the new Recall Campaign to add a brake inspection gauge and respective owner’s manual information on 42,742 Model Year (“MY”) 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 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 “PENDING” on November 8, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacture of Mercedes-Benz vehicles, has determined that certain Model Year (“MY”) 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 platform) vehicles might not be equipped with the inspection gauge for checking the wear of the rear axle brake pads. Furthermore, the respective information for using this inspection gauge might not be included in the owner’s manual.
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer add a brake inspection gauge and the respective owner’s manual information on the affected vehicles.
Parts
Remedy is not available at this time.
Vehicles Affected
Vehicle Model Year(s)
2019-2021
Vehicle Model
A-Class, CLA, GLA and GLB
Vehicle Populations
Total Recall Population
42,742
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 November 8, 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 not 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.

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-732
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC NOV 01, 2023 NHTSA Recall No. : 23V-732 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 : 42,742 Estimated percentage with defect : 100 %
Vehicle Information :
Vehicle 1 : 2019-2020 Mercedes-Benz A 220 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz A-Class 22,434. The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2020-2020 Mercedes-Benz CLA 250 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz CLA 8,952. The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-732 Page 2 Vehicle 3 : 2021-2021 Mercedes-Benz GLA 250 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz GLA 478. The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2020-2020 Mercedes-Benz GLB 250 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz GLB 9,881. The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2020-2020 Mercedes-Benz AMG A 35 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz A-Class 159 The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-732 Page 3 Vehicle 6 : 2020-2020 Mercedes-Benz AMG CLA 45 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz CLA 147 The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2020-2020 Mercedes-Benz AMG CLA 35 Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : GAS
Descriptive Information : Mercedes-Benz CLA 691 The recall population was determined through production records. Vehicles outside of the recall population are equipped with a brake inspection gauge and respective owner’s manual information that conforms to the standards set forth in FMVSS 135 S5.1.2. Production Dates : AUG 20, 2018 – MAY 15, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance : Description of the Noncompliance : Mercedes-Benz AG (“MBAG”), the manufacture of Mercedes-Benz vehicles, has determined that certain Model Year (“MY”) 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 platform) vehicles might not be equipped with the inspection gauge for checking the wear of the rear axle brake pads.
Furthermore, the respective information for using this inspection gauge might not be included in the owner’s manual. FMVSS 1 : 135 – Light vehicle brake systems FMVSS 2 : NR
Description of the Safety Risk : Due to the brake force distribution, the brake pads on the front axle will
always wear out sooner than the rear axle brake pads. The potentially affected vehicles are equipped with an electronic wear sensor on the front axle. If the brake pads thickness decreases below a certain level on the front axle, the driver will be informed that the brake pads need to be replaced by the permanently lit warning lamp and warning message “Check brake pads. See Owner’s Manual” in the instrument cluster. This warning message will appear at the beginning of each driving cycle until new brake pads are installed. The above mentioned permanently lit warning lamp cannot be turned off by the driver and is only deactivated after the brake pads have The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-732 Page 4 been replaced. Even if the brake pads on the front axle fall below the threshold level, the brake pads on the rear axle continue to have sufficient thickness. Once the vehicle is taken to the workshop, the brake pads on the rear axle will also be inspected and replaced, if necessary. Due to the force distribution of the brake system, it can be ruled out that the brake pads on the front axle reach the wear limit before the brake pads of the rear axle reach their wear limit. In addition, internal vehicle tests have shown that even with completely worn brake pads on the rear axle, the potentially affected vehicles will still meet the legal performance requirements for stopping distance in accordance with the FMVSS 135, S7.5.3. The electronic driving safety systems (ABS, ESP, etc.) would continue to function as intended in this case. If an increased wear on the brake pads on the rear axle is not identified, this might increase the risk of a crash.
Description of the Cause : Due to a documentation error in the production control system, the potentially affected vehicles might not be equipped with the inspection gauge for checking the wear of the rear axle brake pads and the respective information in the owner’s manual might be missing. Identification of Any Warning
that can Occur : The driver will not receive a warning due to the nature of the failure mechanism. Involved Components : Component Name 1 : Gauge Component Description : Gauge Component Part Number : A0005830642 Component Name 2 : Supplementary Booklet
Component Description : Owner’s Manual Supplement Booklet Component Part Number : A1185846304 Supplier Identification : Component Manufacturer Name : MBAG The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-732 Page 5 Address : NR
NR Country : NR Chronology :
In February 2020, MBAG after sales department was first made aware through internal analyses for quality assurance that the inspection gauge for checking the wear of the brake pads on the rear axle and the respective information in the owner’s manual for using this inspection gauge may not have been provided with certain vehicles. MBAG initiated a technical investigation, including the potential impact of not including the wear inspection gauge. During the analysis process, MBAG investigated potential technical impacts of the described issue in connection with the conditions of the braking system. MBAG found that, due to the brake force distribution, the brake pads on the front axle wear out sooner than the rear axle brake pads. The potentially affected vehicles are equipped with an electronic wear sensor on the front axle. If the brake pads thickness falls below a certain level, the driver will be informed that the brake pads need to be replaced by the permanently lit warning lamp and warning message “Check brake pads. See Owner’s Manual” in the instrument cluster. In this case, the brake performance would still not be impaired. Once the vehicle is taken to the workshop, the brake pads on the rear axle will also be checked and replaced, if necessary. In addition, internal vehicle test data was analyzed. This analysis showed that even with completely worn brake pads on the rear axle, the potentially affected vehicles would still meet the legal performance requirements for stopping distance in accordance with the FMVSS 135, S7.5.3. Furthermore, the force distribution of the brake system prohibits that the brake pads on the rear axle could reach the wear limit before the brake pads of the front axle reach their wear limit. Please see chronology supplement. Description of Remedy :
Description of Remedy Program : An authorized Mercedes-Benz dealer will add the inspection gauge and
enclose the supplemental owner’s manual information for using this inspection gauge 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 : An inspection gauge for checking the wear of the brake pads on the rear axle and supplemental owner’s manual information for using this inspection gauge.
Gauge – A0005830642
Supplementary Booklet – A1185846304 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-732
Page 6
The information contained in this report was submitted pursuant to 49 CFR §573
Identify How/When Recall Condition was Corrected in Production :
A change in the documentation of the production control system ensures that this issue can no longer occur from May 18, 2020 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
November 8, 2023. Owners will be notified of the voluntary recall campaign before December 31, 2023. A copy of all communications will be provided when available.
Planned Dealer Notification Date : NOV 08, 2023 – NR Planned Owner Notification Date : DEC 31, 2023 – NR
* NR – Not Reported

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Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company
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-FORMERCEDES.
Sincerely,
Gregory Gunther
Senior Manager, Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers,
Sales Managers, Service Managers, Parts Managers
FROM: Gregory Gunther, Senior Manager, Vehicle
Compliance and Analysis, Engineering Services
RE: Recall Campaign Launch Notification
Add Inspection Gauge and Supplemental Booklet
for Checking Rear Brake Pads
MY19-21 A-Class, CLA, GLA and GLB (177, 118,
247 platform)
DATE: February 16, 2024
Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company
One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance & Analysis
Recall Campaign Launch Notification February 16, 2024
Campaign No. : NHTSA ID Campaign Desc. : Add Inspection Gauge and
Supplemental Booklet for
Checking Rear Brake Pads
2024010010 23V732 23P4296005
This is to notify you of the Recall Campaign Launch to add a brake inspection gauge and respective owner’s manual information on 42,742
Model Year (“MY”) 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 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 February 16, 2024.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacture of Mercedes-Benz vehicles, has determined that
certain MY 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 platform) vehicles might not be
equipped with the inspection gauge for checking the wear of the rear axle brake pads.
Furthermore, the respective information for using this inspection gauge might not be included in
the owner’s manual.
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will add a brake
inspection gauge and the respective owner’s manual information to the affected vehicles, if
necessary.
Parts The remedy is available and can be performed.
Vehicles Affected
Vehicle Model Year(s) 2019-2021
Vehicle Model A-Class, CLA, GLA and GLB
Vehicle Populations
Total Recall Population 42,742
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 February 29, 2024.
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
Mercedes-Benz dealer.
Customer Reimbursement Customer reimbursement is not 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.2024010010, February 2024
TO: ALL MERCEDES-BENZ CENTERS
SUBJECT: Model A-Class, CLA, GLA, and GLB (177, 118, and 247 platform)
Model Year 2019-2021
Add Inspection Gauge and Supplemental Booklet for Checking Rear Brake Pads
Mercedes-Benz AG (“MBAG”), the manufacture of Mercedes-Benz vehicles, has determined that
certain MY 2019-2021 A-Class, CLA, GLA and GLB (177, 118, 247 platform) vehicles might not be
equipped with the inspection gauge for checking the wear of the rear axle brake pads. Furthermore,
the respective information for using this inspection gauge might not be included in the owner’s
manual. An authorized Mercedes-Benz dealer will add a brake inspection gauge and the respective
owner’s manual information to the affected vehicles, if necessary.
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 42,742 vehicles are affected.
Order No. P-RC-2024010010
2
P-RC-2024010010
Add Inspection Gauge and Supplemental Booklet for Checking Rear Brake Pads
Work Procedure
1. Open vehicle booklet and check whether gauge (Figure 1) is present; enclose if necessary.
2. Check whether supplementary booklet (Figure 2) is present; enclose if necessary.
Figure 1 (Gauge A 000 583 06 42)
Figure 2 (Supplementary Booklet)
__________________________________________________________________________________________________
3
P-RC-2024010010
Primary Parts Information
Qty. Part Name Part Number
As required (1) Gauge A 000 583 06 42
As required (1) Supplementary booklet A 118 584 63 04
__________________________________________________________________________________________________
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.)
42 960 05 02-9471
Check if inspection gauge and supplementary booklet are present, enclose if
necessary
0.1
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.

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