Update Engine Control Unit Software (2025040003)

UPDATE ENGINE CONTROL UNIT SOFTWARE

SERVICE CAMPAIGN BULLETIN

SERVICE INFORMATION

CAMPAIGN DESC. 24P5496414 

SUBJECT

MODEL(S) C-Class and AMG SL (206 and 232 platform) 

MODEL YEAR(S) 2023 - 2024 

CAMPAIGN POPULATION 77 

Campaign Technical Instructions 

Prior to performing this Campaign: 

Check the Vehicle Master Inquiry (VMI) to verify this campaign applies to the specific vehicle. Always check for other open campaigns and perform them accordingly!

Review the entire campaign bulletin first, and perform the procedures exactly as described.

Model(s): 206 and 232

• 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 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 Control Unit  software.

   To do this, select menu item "Quick test view → N3/10 - Motor electronics 'MRG2AMG' for combustion engine 'M139' (ME)  → Adaptations → Control unit update → Update of control unit software".

   Then follow the user guidance in XENTRY Diagnosis.

   As part of this control unit update, several control units will be updated independently.

3. Read out and erase fault memory.
4. Disconnect XENTRY Diagnosis.

WARRANTY INFORMATION

Damage Code	Operation Number	Description	Labor Time (hrs.)
54 964 14	02-9334 (1)	Update N3/10 - Motor electronics (ME)  control unit software (with XENTRY Diagnosis connected)	0.1
	02-9334 (1)	Update N3/10 - Motor electronics (ME)  control unit software (with XENTRY Diagnosis connected) Includes: Perform work on bus idle and clear fault memory	0.1
	02-4762 (2)	Connect/disconnect diagnostic system (XENTRY Diagnosis)	0.1
	02-5058 (2)	Connect/disconnect starter battery charger (with XENTRY Diagnosis connected)	0.1
(1) Operation item may be invoiced twice for this measure due to bus idle and fault memory!  (2) Invoice operation item only once for each Repair Order (RO).