Perform SCN Coding for Engine Control Unit – 2009-2012 Mercedes-Benz ML-Class, R-Class, & S-Class

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Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600
News Channel Update | Vehicle Compliance and Analysis TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers
RE: Emission Service Campaign 2023060005 Launch Notification
Perform SCN Coding for Engine Control Unit FROM: Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services DATE: December 12, 2023
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 News Channel Update | Vehicle Compliance and Analysis Service Campaign Launch Notification Campaign No. : Campaign Desc. : 2023060005 23P5492019 December 12, 2023
Perform SCN Coding for Engine Control Unit This is to notify you of an Emission Service Campaign launch to update the SCN coding for SCR and VGS on 3,704 Model Year (“MY”) 2009-2012 ML-Class, R-Class, and S-Class (164/166, 251, 221 platforms) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on December 12, 2023.
Background
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, Issue What We’re Doing Parts 251, 221 platforms) vehicles, the coding for the engine control unit does not correspond to the specifications as part of the “BlueTEC update” diesel field measure (aka “Emission Modification”). This could result in the VIN number not being read out from the vehicle. This could affect the vehicle smog check.
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.
Parts are not required for this campaign since the remedy is software based
Vehicles Affected Vehicle Model Year(s) Vehicle Model 2009-2012
GL-Class, ML-Class, R-Class, S-Class
Vehicle Population Total Campaign Population 3,704 While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Approximately two weeks after the posting of this NCU, a letter will be sent to owners notifying them of this emission service campaign. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES. Mercedes-Benz USA, LLC A Mercedes-Benz Group AG Company One Mercedes-Benz Drive Sandy Springs, GA 30328 770.705.0600 2 Campaign No. 2023060005, December 2023 TO: ALL MERCEDES-BENZ CENTERS SUBJECT: Model Various Models
Model Year 2009-2012 Perform SCN Coding for Engine Control Unit 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 2
P-SC-2023060005
Perform SCN Coding for Engine Control Unit • 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 02-4762* 02-5058*
Perform SCN coding in engine control unit (with XENTRY Diagnosis connected) Connect/disconnect diagnostic system (XENTRY Diagnosis)
Connect/disconnect starter battery charger (with XENTRY Diagnosis connected)
0.1 0.1 0.1 * Invoice operation item only once for each workshop order.
1 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.

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