Replace Air-Conditioning Refrigerant – 2022-2023 Mercedes-Benz G-Class

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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
Replace Air-Conditioning Refrigerant
MY22-23 G-Class (463)
DATE: March 8, 2024
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 8, 2024
Campaign No. :
NHTSA ID
Campaign Desc. :
Replace Air-Conditioning Refrigerant
TBA
24V170
24P2195404
This is to notify you of the new Recall Campaign to Replace the Air-Conditioning Refrigerant on 9 Model Year (“MY”) 2022-2023 G-Class (463 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 March 8, 2024.
Background
Issue
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that the air-conditioning system in certain MY 2022-2023 G-Class (463 platform) vehicles might not have been filled with the specified refrigerant. In the event of a refrigerant leak as a consequence of a crash, the risk of fire might be increased.
What We’re Doing
MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will replace the air-conditioning refrigerant in the affected vehicles.
Parts
Remedy is not available at this time.
Vehicles Affected
Vehicle Model Year(s)
2022-2023
Vehicle Model
G-Class
Vehicle Populations
Total Recall Population
9
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 April 30, 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 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 24V-170
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC MAR 01, 2024 NHTSA Recall No. : 24V-170 Manufacturer Recall No. : 2024MMNNNN 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 : 9
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2022-2023 Mercedes-Benz AMG G 63 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz 2022-2023 AMG G 63 5 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant.
Production Dates : JUN 28, 2022 – APR 20, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz G 550 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz 2023 G 550 4 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant.
Production Dates : JUN 28, 2022 – APR 20, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that the air-conditioning system in certain Model Year (“MY”) 2022-2023 G-Class (463 platform) vehicles might not have been filled with the specified refrigerant. FMVSS 1 : NR Part 573 Safety Recall Report 24V-170 Page 2 FMVSS 2 : NR
Description of the Safety Risk : In this case, the affected vehicles might not be filled with the specified
refrigerant type. Thus, in the event of a refrigerant leak as a consequence of a crash, the risk of fire might be increased.
Description of the Cause : Due to a deviation in the vehicle production process, certain vehicles might not be filled with the specified air-conditioning refrigerant. 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 : REFRIGERANT Component Description : REFRIGERANT Component Part Number : A0009890448 Supplier Identification : Component Manufacturer
Name : MBAG Address : NR
NR
Country : NR Chronology :
In mid-2023, during a standard quality audit in the production plant, MBAG became aware of a data mismatch between the refrigerant that was filled into a certain vehicle as well as the intended and documented refrigerant. As a consequence, thorough analyses were initiated to identify the consequences of the data mismatch. In August 2023, those analyses concluded that certain vehicles might have been filled with an incorrect refrigerant and initiated an investigation to determine potentially affected vehicles and consequences. Generally, two refrigerant variants are in use, while depending on the country of destination, a specific variant of refrigerant must be filled into the vehicles. Until the end of 2023, MBAG reviewed the production data of all suspect vehicles and compared the production data of all vehicles with the certified and intended refrigerant variant. On this basis, the population of potentially affected vehicles was identified.
Since potential consequences vary with the type of incorrect refrigerant filled, this information was necessary to determine potential consequences from January 2024 onwards. On February 23, 2024, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-170
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
MBAG is aware of no warranty claims, field reports, or other information (such as the numbers of deaths and/ or injuries) related to this defect in the USA.
Description of Remedy :
Description of Remedy Program : An authorized Mercedes-Benz dealer will replace the air-conditioning refrigerant in the affected vehicles. How Remedy Component Differs from Recalled Component : Identify How/When Recall Condition was Corrected in Production : Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant. Remedy Part No: REFRIGERANT / R134 A A0009890348
A change in the vehicle production procedure ensures that this issue can no longer occur from April 21, 2023 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 8, 2024. Owners will be notified of the voluntary recall campaign before April 30, 2024. A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 08, 2024 – NR Planned Owner Notification Date : APR 30, 2024 – NR
* NR – Not Reported

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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 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
Replace Air-Conditioning Refrigerant
MY22-23 G-Class (463)
DATE: March 28, 2024
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 Launch Notification March 28, 2024
Campaign No. : NHTSA ID Campaign Desc. : Replace Air-Conditioning Refrigerant 2024030016 24V170 24P8394101
This is to notify you of the Recall Campaign Launch to Replace the Air-Conditioning Refrigerant on 9 Model Year (“MY”) 2022-2023 G-Class (463
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 March 28, 2024.
Background
Issue
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that the airconditioning
system in certain MY 2022-2023 G-Class (463 platform) vehicles might not have been
filled with the specified refrigerant. In the event of a refrigerant leak as a consequence of a crash,
the risk of fire might be increased.
What We’re Doing MBUSA will conduct a voluntary recall. An authorized Mercedes-Benz dealer will replace the airconditioning
refrigerant in the affected vehicles.
Parts The remedy is available and can be performed..
Vehicles Affected
Vehicle Model Year(s) 2022-2023
Vehicle Model G-Class
Vehicle Populations
Total Recall Population 9
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 April 12, 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 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.
2
Campaign No. 2024030016, March 2024
TO: ALL MERCEDES-BENZ CENTERS
SUBJECT: Model G-Class (463 platform)
Model Year 2022 – 2023
Replace Air-Conditioning System Refrigerant
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that the airconditioning
system in certain MY 2022-2023 G-Class (463 platform) vehicles might not have been
filled with the specified refrigerant. In the event of a refrigerant leak, as a consequence of a crash,
the risk of fire might be increased. An authorized Mercedes-Benz dealer will replace the airconditioning
refrigerant and dryer cartridge in 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 9 vehicles are affected.
Order No. P-RC- 2024030016
2
P-RC-2024030016
Replace Air-Conditioning System Refrigerant
This procedure can only be performed in workshops that are equipped with air conditioning service units for both
1234yf and R134a.
The vehicles are filled incorrectly with refrigerant (1234yf). The connections of the air conditioning system and the air
conditioning system information label on the vehicle are designed correctly for the refrigerant.
Check/Test Procedure
1. Confirm that refrigerant R134a is specified on the air conditioning system information label, carry out Work Procedure.
Work Procedure
Vehicle is filled incorrectly with refrigerant 1234yf and must be filled with R134a.
1. The connection fittings of the air conditioning service unit for refrigerant (1234yf) must be modified.
1234yf service unit will temporarily need R134a connection fittings installed to evacuate 1234yf refrigerant
The different refrigerants must not be mixed in the air conditioning service unit.
2. Drain and evacuate air conditioning system.
Drain and evacuate air conditioning system with air conditioning service unit for refrigerant 1234yf
Note the amount of oil suctioned off.
For basic information, see AR83.30-P-1760XG.
3. Replace dryer cartridge.
For basic information, see: AR83.30-P-6521XGA (M177 and M176)
4. Re-convert the connection fittings of the air conditioning service unit to the original air conditioning service unit.
5. Refill the air conditioning system and check it for proper operation and leak tightness.
Check the system for leakage, see AR83.30-P-1761XG.
Fill the air conditioning system using air conditioning service unit for refrigerant R134a.
Filling quantity of refrigerant can be found on the air conditioning system information label.
Fill the air conditioning system with the noted amount of oil suctioned off + 10 ml.
Use compressor oil from the air conditioning service unit for refrigerant R134a.
For basic information, see AR83.30-P-1760XG.
__________________________________________________________________________________________________
3
P-RC-2024030016
Primary Parts Information
Qty. Part Name Part Number
1 Filter dryer (dryer cartridge) A 167 835 32 00*
* The replacement parts must be determined according to the equipment variant for the vehicle identification number via
the parts process in the Xentry Portal.
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.)
83 941 01
12-2059
Operations: Replace refrigerant and dryer cartridge of air conditioning system
Model 463.277 with engine 177
4.9 h
12-2059
Operations: Replace refrigerant and dryer cartridge of air conditioning system
Model 463.261 with engine 176
4.1 h
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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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-170
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Mercedes-Benz USA, LLC MAR 28, 2024 NHTSA Recall No. : 24V-170 Manufacturer Recall No. : 2024030016 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 : 9
Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2022-2023 Mercedes-Benz AMG G 63 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz 2022-2023 AMG G 63 5 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant.
Production Dates : JUN 28, 2022 – APR 20, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Mercedes-Benz G 550 Vehicle Type : LIGHT VEHICLES Body Style : SUV Power Train : GAS
Descriptive Information : Mercedes-Benz 2023 G 550 4 Vehicles. The recall population was determined through production records. Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant.
Production Dates : JUN 28, 2022 – APR 20, 2023
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that the air-conditioning system in certain Model Year (“MY”) 2022-2023 G-Class (463 platform) vehicles might not have been filled with the specified refrigerant. FMVSS 1 : NR Part 573 Safety Recall Report 24V-170 Page 2 FMVSS 2 : NR
Description of the Safety Risk : In this case, the affected vehicles might not be filled with the specified
refrigerant type. Thus, in the event of a refrigerant leak as a consequence of a crash, the risk of fire might be increased.
Description of the Cause : Due to a deviation in the vehicle production process, certain vehicles might not be filled with the specified air-conditioning refrigerant. 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 : REFRIGERANT Component Description : REFRIGERANT Component Part Number : A0009890448 Supplier Identification : Component Manufacturer
Name : MBAG Address : NR
NR
Country : NR Chronology :
In mid-2023, during a standard quality audit in the production plant, MBAG became aware of a data mismatch between the refrigerant that was filled into a certain vehicle as well as the intended and documented refrigerant. As a consequence, thorough analyses were initiated to identify the consequences of the data mismatch. In August 2023, those analyses concluded that certain vehicles might have been filled with an incorrect refrigerant and initiated an investigation to determine potentially affected vehicles and consequences. Generally, two refrigerant variants are in use, while depending on the country of destination, a specific variant of refrigerant must be filled into the vehicles. Until the end of 2023, MBAG reviewed the production data of all suspect vehicles and compared the production data of all vehicles with the certified and intended refrigerant variant. On this basis, the population of potentially affected vehicles was identified.
Since potential consequences vary with the type of incorrect refrigerant filled, this information was necessary to determine potential consequences from January 2024 onwards. On February 23, 2024, MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-170
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
MBAG is aware of no warranty claims, field reports, or other information (such as the numbers of deaths and/ or injuries) related to this defect in the USA.
Description of Remedy :
Description of Remedy Program : An authorized Mercedes-Benz dealer will replace the air-conditioning refrigerant in the affected vehicles. How Remedy Component Differs from Recalled Component : Identify How/When Recall Condition was Corrected in Production : Vehicles outside of the recall population have been filled with the specified air-conditioning refrigerant. Remedy Part No: REFRIGERANT / R134 A A0009890348
A change in the vehicle production procedure ensures that this issue can no longer occur from April 21, 2023 onwards. Recall Schedule :
Description of Recall Schedule : Dealers will be notified of the pending voluntary recall campaign on
March 8, 2024. Owners will be notified of the voluntary recall campaign before April 12, 2024. A copy of all communications will be provided when available.
Planned Dealer Notification Date : MAR 08, 2024 – NR Planned Owner Notification Date : APR 12, 2024 – NR
* NR – Not Reported

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