Update Engine Control Unit Software (2025030008)

UPDATE ENGINE CONTROL UNIT SOFTWARE

SERVICE CAMPAIGN BULLETIN

SERVICE INFORMATION

IMPORTANT NEW EMISSION SERVICE CAMPAIGN LAUNCH 

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

Sincerely,

Gregory Gunther

Senior Manager, Vehicle Compliance & Analysis

TO: ALL MERCEDES-BENZ CENTERS

CAMPAIGN DESC. 21P5499417 

SUBJECT

Update Engine Control Unit Software 

MODEL(S) A-Class (177 platform) 

MODEL YEAR(S) 2019 

CAMPAIGN POPULATION 18,341 

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.

Order No. P-SC-2025030008

Model(s): 177

• 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 'MED41' for combustion engine 'M260/M264' (ME)  → Adaptations → Control unit update → Updating of the 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 99417	02-9334(2)	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 item only once for each workshop order. (2) Please enter the Acc. no.: 5499417 and code: 21P5499417 manually in the workshop order.