Service Campaign 2024090007 - Update Engine Control Unit Software (2024090007)

SERVICE CAMPAIGN 2024090007 - UPDATE ENGINE CONTROL UNIT SOFTWARE

SERVICE CAMPAIGN BULLETIN

SERVICE INFORMATION

IMPORTANT SERVICE CAMPAIGN LAUNCH 

Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES (1-800-367-6372).

Sincerely,

Gregory Gunther

Senior Manager, Vehicle Compliance & Analysis

September 2024

TO: ALL MERCEDES-BENZ CENTERS

SUBJECT

Model CLS, E-Class, GLE, and AMG GT (257, 213, 238, 167 and 290 platforms) Model Year 2020 - 2023 

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2020-2023 CLS (257 platform), E-Class (213 and 238 platform), GLE (167 platform), and AMG GT 4-Door (290 platform) vehicles, the engine control unit software does not correspond to current production specifications. As a consequence, the post-catalyst oxygen sensor may experience increased thermal load impairing functionality. An authorized Mercedes-Benz dealer will update the engine control unit software in 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 22,775 vehicles are affected.

Order No. P-SC-2024090007

• Always use the latest  XENTRY Diagnosis software release with all available add-ons.
• 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 system battery  (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 Motor electronics (ME)  control unit software.

   To do this, select menu item "Quick test view → N3/10 - Motor electronics "MRG1" for combustion engine 'M256' (ME) →  Adaptations → Control unit update → Updating of control unit software".

   Then follow the user guidance in XENTRY Diagnosis.

3. Disconnect XENTRY Diagnosis.

WARRANTY INFORMATION

Damage Code	Operation Number	Description	Labor Time (hrs.)
54 963 45	02-9334 (2)	Operation:  Update N3/10 - Motor electronics (ME)  control unit software (with XENTRY Diagnosis connected)	0.1
	02-4762 (1)	Connect/disconnect diagnostic system (XENTRY Diagnosis)	0.1
	02-5058 (1)	Connect/disconnect starter battery charger (with XENTRY Diagnosis connected)	0.1
(1) Invoice operation items only on one of the workshop orders, if two or more software updates or SCN codings are performed during a single workshop visit.  (2) Please enter the code and accounting number manually in the workshop order as per the work instructions.