Service Campaign 2023060005 - Perform SCN Coding For Engine Control Unit (P-SC-2023060005)

SERVICE CAMPAIGN 2023060005 - PERFORM SCN CODING FOR ENGINE CONTROL UNIT

SERVICE CAMPAIGN BULLETIN

SERVICE INFORMATION

IMPORTANT NEW EMISSION SERVICE CAMPAIGN INFORMATION 

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

Sincerely,

Gregory Gunther

Department Manager, Vehicle Compliance & Analysis

TO: ALL MERCEDES-BENZ CENTERS

SUBJECT

Model Various Models 

Model Year 2009-2012 

Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year ("MY") 2009-2012 GL-Class, ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles, the coding of the engine control unit does not correspond to the specifications as part of the "BlueTEC update" diesel field measure. This could result in the VIN number not being read out from the vehicle. This could affect the vehicle smog check This situation does not have any additional technical implications for the vehicle. MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will update the SCN coding for the engine control unit on 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 3,704 vehicles are affected.

Order No. P-SC-2023060005

• 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.

   DAS screen (model 164; 221; 251) 

2. Perform SCN coding in engine  control unit.

   To do this, select menu item "Quick test view - CDI60LS Common rail diesel injection - Control unit adaptations-Variant coding-SCN coding".

   Then follow the user guidance in XENTRY Diagnosis.

   XENTRY screen (model 166) 

3. Perform SCN coding in engine  control unit.

   To do this, select menu item "Quick test view - N3/9 engine electronics CDI60LS - Adaptations - Control unit update - Updating of SCN coding".

   Then follow the user guidance in XENTRY Diagnosis.

4. Disconnect XENTRY Diagnosis.
   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.)
54 920 19	02-9446	Perform SCN coding in engine control unit (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.