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
Rework Connector Assignment in Trunk Fuse and
DATE: January 12, 2024
Relay Module
MY22 SL (232 platform)

IMPORTANT SERVICE CAMPAIGN LAUNCH UPDATE

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. :

2023100003

23P5490213

January 12, 2024
Rework Connector Assignment in Trunk Fuse
and Relay Module

This is to notify you of the Service Campaign Launch to rework the connector assignment in the trunk fuse and relay module, if
necessary, in 1,472 Model Year (“MY”) 2022 SL (232 platform) vehicles. The vehicles are visible and were flagged in VMI as
“OPEN” on October 20, 2023. An additional 596 vehicles will be visible and flagged in VMI as “OPEN” on January 12, 2024.

Background
Issue

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has
determined that on certain MY 2022 SL (232 platform) vehicles, after a longer nonoperational time of greater than 42 days or with a battery charge of less than 45%,
the following battery fault message might display in the instrument cluster: “Stop
Vehicle See Operator's Manual, Switch on vehicle to charge the 12 V battery, or Stop
vehicle To charge the12 V battery do not switch off vehicle.”

What We’re Doing

MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will
rework the connector assignment in the trunk fuse and relay module to make the
vehicle ready for an external charger in cases of prolonged non-operational use.

Parts

The remedy is available and can be performed as necessary.

Vehicle Model Year(s)

2022
SL

Vehicles Affected
Vehicle Model

Vehicle Populations
Total Campaign Population

876 + 596 (Supplement)

Next Steps/Notes
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. 2023100003, October 2023

TO:

ALL MERCEDES-BENZ CENTERS

SUBJECT:

Model SL (232 platform)
Model Year 2022
Rework Connector Assignment in Trunk Fuse and Relay Module

Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that
on certain MY 2022 SL (232 platform) vehicles, after a longer non-operational time of greater than
42 days or with a battery charge of less than 45%, the following battery fault message might display
in the instrument cluster: “Stop Vehicle See Operator's Manual, Switch on vehicle to charge the 12
V battery, or Stop vehicle To charge the12 V battery do not switch off vehicle.” An authorized
Mercedes-Benz dealer will rework the connector assignment in the trunk fuse and relay module to
make the vehicle ready for an external charger in cases of prolonged non-operational use.

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 1,472 vehicles are
affected. Order No. P-SC-2023100003

2

Rework Connector Assignment in Trunk Fuse and Relay Module

Work Procedure A
1. Disconnect battery ground line for 12 V on-board electrical system.
For basic data, see AR54.10-P-0051SLY.
2. Remove right seat backrest in rear.
For basic data, see AR91.12-P-1713SLY.
3. Release fuse and relay module (Figure 1) and fold forward with connected lines.
For basic data, see AR91.12-P-1713SLY.

Figure 1

P-SC-2023100003

3
4. Remove both cable ties (1, Figure 2).
Cable ties (1, Figure 2) must be replaced after the modification.

Figure 2
5. Release plug S1 (green) and disconnect from fuse and relay module.
Pry lock (2, Figure 3) upwards with screwdriver.
Press locking tab (3, Figure 3) towards plug with screwdriver.
Partially open fabric tape of disconnected wiring harnesses, and re-wrap after modification.

Figure 3
P-SC-2023100003

4

6. Release plug S5 (white) and disconnect from fuse and relay module.
Pry lock (4, Figure 4) upwards with screwdriver.
Press lock tab (5, Figure 4) towards plug with screwdriver.
Partially open fabric tape of disconnected wiring harnesses, and re-wrap after modification.

Figure 4

7. Disconnect line (red/black) from plug S1 Pin2 (green) (Figure 5).

Figure 5

P-SC-2023100003

5
8. Relocate line (red/black) to plug S5 in Pin5 (white) (Figure 6).

Figure 6
9. Connect plug S1 (green) and plug S5 (white) to the fuse and relay module (Figure 7).
Wrap fabric tape around both branch-off lines

Figure 7
P-SC-2023100003

6
10. Re-locate blue 15 A fuse from slot F404 to F425 (6, Figure 8 and Figure 9).

Figure 8

Figure 9
P-SC-2023100003

7
11. Assemble in reverse order.

12. Check charging function via socket in trunk (Figure 10).
For this, remove key from vehicle and connect trickle charger. The charge indicator lamp must light up.

Figure 10
13. Replace fuse data sheet (Figure 11).

Figure 11
_________________________________________________________________________________________________

P-SC-2023100003

8

Primary Parts Information
Qty.

Part Name

1

Fuse data sheet

Part Number

A 232 584 41 02

The replacement parts must be determined according to the equipment variant for the vehicle identification number via the
parts process in the Xentry Portal.
Small parts such as screws, lock nuts, sealing rings, cable ties, fluids, sealant, etc. are not listed in the parts list. The
required small parts are taken into account in the budgeting.
__________________________________________________________________________________________________
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Damage

Operation

Code

Number

54 902 13

12-1697

Description

Rework assignment of connector in fuse and relay module
Includes: Correct assignment of connector in fuse and relay module and
replace fuse data sheet

Labor Time
(hrs.)

0.9

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-2023100003