News Channel Update |

Vehicle Compliance & Analysis

TO: Mercedes-Benz Dealer Principals, General Managers, FROM: Gregory Gunther, Senior Manager, Vehicle
Sales Managers, Service Managers, Parts Managers
Compliance and Analysis, Engineering Services
RE: Emissions Recall Campaign
Notification
Update Engine Control Unit Software (Multiple
DATE: October 9, 2023
topics)
MY21 AMG G-Class (463 platform)

IMPORTANT EMISSIONS 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-FORMERCEDES.

Sincerely,
Gregory Gunther
Senior Manager, Vehicle Compliance & Analysis

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

News Channel Update |

Vehicle Compliance & Analysis

Recall Campaign Launch Notification
Campaign No. :

CA DMV. :

Campaign Desc. :

2023070022

230722

23P5499429

October 9, 2023
Update Engine Control Unit Software

This is to notify you of an Emissions Recall Campaign LAUNCH to update the engine control unit software in 8,102 Model Year (“MY”) 2021
AMG G-Class (463 platform) vehicles. A customer notification letter will be mailed to customers advising of this emissions recall, which may
generate questions. Affected VINs will be flagged in VMI as “OPEN” on October 10, 2023

Background
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that
the software for the engine control unit in the subject vehicles may not meet current
specifications. As a result, the diagnosis for monitoring the air fuel ratio might not be activated in
low load operation as intended. In addition, catalytic converter aging might not be immediately
detected and so, may not illuminate a check engine Malfunction Indicator Lamp (“MIL”). After
a cold start in the "catalytic converter heating" operating mode, misfires might occur
and the check engine MIL would be illuminated. Consequently, these issues may not meet
local legal requirements for on-board diagnostics and/or exhaust gas emissions.
MBUSA will conduct a voluntary Emissions Recall Campaign in which an authorized MercedesBenz dealer will update the software in the affected vehicles.

Issue

What We’re Doing
Parts

Parts are not required for this campaign since the remedy is software based.

Vehicle Model Year(s)
Vehicle Model

2021
AMG G-Class (463 Platform)

Vehicles Affected
Vehicle Populations
Total Recall Population

8,103

Notice to California Dealers: As required by 13 CCR 2117, a proof of correction (“POC”) certificate showing that the vehicle has been repaired
under this recall must be issued by the authorized service facility, and that such a certificate may be required by California as a condition of
vehicle re-registration or operation. Please reference this POC in the attached work instructions. Failure to complete this step may result in
fines and penalties and lead to customer dissatisfaction.

Next Steps/Notes
Customer Notification Timeline

Customer letters will be mailed on October 20, 2023.

AOMs – This recall may generate questions from your dealers. Please forward this notice to
your dealers ASAP.
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.

AOMS/SOMS

Mercedes-Benz USA, LLC
One Mercedes-Benz Drive

A Mercedes-Benz Group AG Company

Sandy Springs, GA 30328

770.705.0600

2

Campaign No. 2023070022, October 2023

TO:

ALL MERCEDES-BENZ CENTERS

SUBJECT:

Model G-Class (463 platform)
Model Year 2021
Update Engine Control Unit Software

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that
the software for the engine control unit in the subject vehicles may not meet current specifications.
As a result, the diagnosis for monitoring the air fuel ratio might not be activated in low load operation
as intended. In addition, catalytic converter aging might not be immediately detected and so, may
not illuminate a check engine Malfunction Indicator Lamp (“MIL”). After a cold start in the "catalytic
converter heating" operating mode, misfires might occur and the check engine MIL would be
illuminated. Consequently, these issues may not meet local legal requirements for onboard diagnostics and/or exhaust gas emissions.

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 8,103 vehicles are affected.
Order No. P-RC-2023070022

2

Update Engine Control Unit Software
• Ensure use of XENTRY Diagnosis version 06/2023 or higher.
• Follow the operation steps exactly as described in XENTRY Diagnosis.
• Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system
(greater than 12.5 V).
• If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure step 2.
If two or more software updates or SCN codings are performed during a single workshop
visit, operation items 02-4762 and 02-5058 may be invoiced
only on one of the workshop orders.
Work Procedure

1. Connect XENTRY Diagnosis.
2. Update engine electronics (ME-SFI) control unit software.
To do so, select menu item "Quick test view-N3/10 engine electronics - Adaptations-Control unit update-Updating of
control unit software ".
Then follow the user guidance in XENTRY Diagnosis.

3. Disconnect XENTRY Diagnosis.
__________________________________________________________________________________________________
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Damage

Operation

Code

Number

02-9334
54 994 29

02-4762*
02-5058*

*

Description

Update N3/10 engine electronics control unit software
(with XENTRY Diagnosis connected)
Connect/disconnect diagnostic system
(XENTRY Diagnosis)
Connect/disconnect starter battery charger
(with XENTRY Diagnosis connected)

Labor Time
(hrs.)

0.1
0.1
0.1

Invoice operation item only once for each workshop order.

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.

P-RC-2023070022

3
The following step applies to California dealers only.
Apply Proof of Correction Label (A 000 584 54 13) to area identified in Figure 1. Fill in the blank areas of the label.
The campaign number for the California Proof of Correction is unique and must be entered as such (230722), your
dealer code, and the date of the repair, using a black permanent marker.
Note: Clean bonding surface prior to affixing label.

Figure 1
The following step applies to California dealers only.
Provide the owner with the completed and signed Proof of Correction Certificate (A 000 584 42 14) (Figure 2), after
you scan a completed form and attach to the RO. The recall number for the California Proof of Correction is unique
and must be entered as such (230722).

Figure 2
California Proof of Correction Parts Information
Qty.

Part Name

Part Number

1
1

Sheet (CA Dealers Only)
Label (CA Dealers Only)

A 000 584 42 14
A 000 584 54 13

Warranty Information
Damage

Operation

Code

Number

212CA 00

02-0001

Description

Labor Time
(hrs.)

Apply Proof of Correction Label and completed Proof of Correction Certificate

0.1

P-RC-2023070022