NCU-2024020012

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
Engine Control Unit Software Update
DATE: March 1, 2024
MY22-23 SL (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. :
2024020012
24P0797205
March 1, 2024
Update Engine Control Unit Software
This is to notify you of the Service Campaign Launch to update the Engine Control Unit Software in 5,234 Model Year (“MY”) 20222023 SL (232 platform). The vehicles will be visible and flagged in VMI as “OPEN” on March 1, 2024.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has
determined that on certain MY 2022-2023 SL (232 platform) vehicles, the Engine
Control Unit software might not correspond to the current production
specifications. As a consequence, the engine fan may run for an excessive amount
of time after the vehicle is shut off.
What We’re Doing
MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will
update the Engine Control Unit software.
Parts
The remedy is available and can be performed as necessary.
Vehicles Affected
2022-2023
SL
Vehicle Model Year(s)
Vehicle Model
Vehicle Populations
Total Campaign Population
5,234
Next Steps/Notes
Customer Notification Timeline
Customer letters will not be mailed for this campaign.
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
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Campaign No. 2024020012, February 2024
TO:
ALL MERCEDES-BENZ CENTERS
SUBJECT:
Model SL (232 platform)
Model Year 2022 – 2023
Update Engine Control Unit Software
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY
2022-2023 SL (232 platform) vehicles, the Engine Control Unit software might not correspond to the current
production specifications. An authorized Mercedes-Benz dealer will update the Engine Control Unit
software.
Prior to performing this Campaign:

VMI must be checked before performing campaigns to verify that the campaign is required on a

Please review the entire Campaign bulletin and follow the repair procedure exactly as described.
specific vehicle. Always check for other open campaigns, and perform accordingly.
Approximately 5,234 vehicles are affected.
Order No. P-SC- 2024020012
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Update N3/10 Motor Electronics (ME-SFI) control unit software
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.
2. Update N3/10 Motor Electronics (ME) control unit software.
To do this, select menu item "Quick test view → N3/10 - Motor Electronics 'MRG1AMGV8' for combustion
engine 'M177' (ME) → Adaptations → Control unit update → Update of control unit software".
Then follow the user guidance in XENTRY Diagnosis.
NOTE: Updated N3/10 Motor Electronics (ME) will include the following software numbers or newer:




177 902 31 19
177 903 30 09
177 903 31 09
177 903 32 09
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
02-9334
07 972 05
02-4762*
02-5058*
Description
Perform N3/10 Motor Electronics (ME-SFI) control unit software update
(with XENTRY Diagnosis connected)
Connect/disconnect diagnostic system
(XENTRY Diagnosis)
Connect/disconnect starter battery charger
(with XENTRY Diagnosis connected)
Labor Time
(hrs.)
0.1
0.1
0.1
* Invoice operation items only on one of the workshop orders, if two or more software updates or SCN codings are
performed during a single workshop visit.
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- 2024020012