NCU-2023110010

News Channel Update |
Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, FROM: Gregory Gunther, Senior Manager, Vehicle
Sales Managers, Service Managers, Parts Managers
Compliance and Analysis, Engineering Services
RE: Service Campaign Launch Notification
Update Electric Engine Mount Control Unit
Software
DATE: December 8, 2023
MY22-24 C-Class, AMG GT, AMG SL (206, 192,
232 platform)
IMPORTANT SERVICE CAMPAIGN LAUNCH
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FORMERCEDES (1-800-367-6372).
Sincerely,
Gregory Gunther
Senior Manager, Vehicle Compliance & Analysis
Mercedes-Benz USA, LLC
One Mercedes-Benz Drive
A Mercedes-Benz Group AG Company
Sandy Springs, GA 30328
770.705.0600
News Channel Update |
Vehicle Compliance & Analysis
Service Campaign Launch Notification
Campaign No. :
Campaign Desc. :
2023110010
23P5498623
December 8, 2023
Update Electric Engine Mount Control Unit
Software
This is to notify you of the Service Campaign Launch to update the electric engine mount control unit software in 30 Model Year
(“MY”) 2022-2024 C-Class, AMG GT, AMG SL (206, 192, 232 platform) vehicles. The vehicles will be visible and flagged in VMI as
“OPEN” on December 8, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has
determined that on certain MY22-24 C-Class, AMG GT, AMG SL (206, 192, 232
platform) vehicles, the electric engine mount control unit software does not
correspond to the latest series production configuration. In this case, a short circuit
may be incorrectly detected, and the engine mounts can de-energize. This in turn
could lead to changes in the vehicle’s dynamics and noise complaints from the
customer.
What We’re Doing
MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will
update the electric engine mount control unit software.
Parts
The remedy is available and can be performed as necessary.
Vehicles Affected
2022-2024
C-Class, AMG GT, AMG SL
Vehicle Model Year(s)
Vehicle Model
Vehicle Populations
Total Campaign Population
30
Next Steps/Notes
Customer Notification Timeline
Customer letters will not be mailed.
AOMS/SOMS
AOMs – This campaign may generate questions from your dealers.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer
satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.
Mercedes-Benz USA, LLC
One Mercedes-Benz Drive
A Mercedes-Benz Group AG Company
Sandy Springs, GA 30328
770.705.0600
2
Campaign No. 2023110010, December 2023
TO:
ALL MERCEDES-BENZ CENTERS
SUBJECT:
Model C-Class, SL, GT (206, 232, 192 platform)
Model Year 2022-2024
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined
that on certain MY22-24 C-Class, AMG GT, AMG SL (206, 192, 232 platform) vehicles, the
electric engine mount control unit software does not correspond to the latest series production
configuration. In this case, a short circuit may be incorrectly detected, and the engine mounts
can de-energize. This in turn could lead to changes in the vehicle’s dynamics and noise
complaints from the customer. An authorized Mercedes-Benz dealer will update the electric
engine mount control unit software.
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 30 vehicles are affected.
Order No. P-SC-2023110010
2
Update Electric Engine Mount Control Unit Software
• Always use the latest XENTRY Diagnosis software release with all available add-ons.
• Make sure to follow the operation steps exactly as described in XENTRY Diagnosis!
• Use a battery charger to ensure sufficient power supply of the vehicle 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 one workshop
visit, the operation items 02-4762 and 02-5058 may only be invoiced once for each workshop order.
Work procedure
1. Connect XENTRY Diagnosis.
2. Update software of engine mount and differential lock (N187) control unit.
To do this, select menu item "Quick test view → N187 – Electric differential lock and engine mount
(EAGGS AMLA) → Adaptations → Control unit update → Update of control unit software".
Then follow the user guidance in XENTRY Diagnosis.
3. Disconnect XENTRY Diagnosis.
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Damage
Operation
Code
Number
Description
Update engine mount and differential lock (N187) control unit software
(with XENTRY Diagnosis connected)
Connect/disconnect diagnostic system
54 986 23
02-4762*
(XENTRY Diagnosis)
Connect/disconnect starter battery charger
02-5058*
(with XENTRY Diagnosis connected)
* Invoice operation item only once for each workshop order.
02-9334
Labor
Time (hrs.)
0.1
0.1
0.1
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.
P-SC-2023110010