NCU-2023030004

Internal
News Channel Update |
Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, FROM: Gregory Gunther, Department Manager, Vehicle
Sales Managers, Service Managers, Parts Managers
Compliance and Analysis, Engineering Services
RE: Service Campaign Launch Notification
Check Convertible Roof Frame, Calibrate if
DATE: April 6, 2023
Necessary
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
Department 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
Internal
News Channel Update |
Vehicle Compliance & Analysis
Service Campaign Launch Notification
Campaign No. :
Campaign Desc. :
2023030004
22P7793001
April 6, 2023
Check Convertible Roof Frame, Calibrate if
Necessary
This is to notify you of the Service Campaign Launch to check the convertible roof frame outlet flap on 153 Model Year (“MY”)
2022-2023 SL (232 platform) vehicles. The vehicles will be visible and flagged in VMI as “OPEN” on April 6, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined
that on certain MY 2022-2023 SL (232 platform) vehicles, the software of the rear
control unit may not meet current production specifications. Therefore, the
possibility exists that the soft top may not close from the “soft top open” position.
What We’re Doing
MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will
check and calibrate the roof frame outlet flap, if necessary.
Parts
The remedy is available and can be performed as necessary.
Vehicle Model Year(s)
2022-2023
SL
Vehicles Affected
Vehicle Model
Vehicle Populations
Total Campaign Population
153
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
Campaign No. 2023030004, April 2023
TO:
ALL MERCEDES-BENZ CENTERS
SUBJECT:
Model SL (232 platform)
Model Year 2022-2023
Check Convertible Roof Frame, Calibrate if Necessary
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY
2022-2023 SL (232 platform) vehicles, the software of the rear control unit may not meet current production
specifications. Therefore, the possibility exists that the soft top may not close from the “soft top open”
position. An authorized Mercedes-Benz dealer will check and calibrate the roof frame outlet flap, if
necessary.
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 153 vehicles are affected.
Order No. P-SC-2023030004
This bulletin has been created and maintained in accordance with MBUSA-SLP S423QH001, Document and Data
Control, and MBUSA-SLP S424HH001, Control of Quality Records.
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Calibrate convertible roof frame outlet flap (GAK) at soft top
 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 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, the operation items 02-4762 and 02-5058 may only be invoiced
only on one of the workshop orders.
Work Procedure
GAK is the German abbreviation for Header Bow
1. Connect XENTRY Diagnosis.
2. Update rear control unit (SG-FOND) software.
To do this, select menu item "Quick test view – N22/6 rear control unit (SG-FOND) - Adaptations – Control unit
update – Updating of control unit software".
Then follow the user guidance in XENTRY Diagnosis.
If no new software is found, the latest version is already installed. In this case, continue to follow the work
instructions.
XENTRY Diagnosis will fully guide you through the following operations.
(The figures below are examples only and serve to provide a better understanding of the operations to be carried out).
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Check/test procedure
1. Identify the work procedure (left GAK and/or right GAK) with XENTRY Diagnosis.
a. Read out calibration data (ACTUAL values) with XENTRY Diagnosis.
To do this, select menu item "Quick test view – N22/6 control unit – Rear control unit - Control unit log =>
Read out ACTUAL values.
b. Save calibration data as a PDF, open and identify defective convertible roof frame outlet flap (GAK) (figure 1)
and determine the required rework scope (figure 2)
Figure 1: Interpretation of GAK calibration value from control unit log
Figure 2: Determination of rework scope
Example: -8 not OK. Here the left GAK must be moved to the rear.
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2. Move soft top into convertible position and Header Bow (GAK) into intermediate position (figure 3).
For this purpose, move to position via the soft top switch (1).
Figure 3 Move to position via soft top switch (1)
3. Open soft top locks via XENTRY Diagnosis (figure 4).
Figure 4
Important note: Risk of damage!
The electric motor is actuated without monitoring. Once the position is reached, the button must be released. Risk of
damage!
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2 people are required for the performance of this operation!
Person 1: Visual height adjustment (soft top (A) and GAK rear edge (B))
Person 2: Gradual raising of soft top via Xentry
4. Raise soft top (A) to same height as GAK rear edge (B) (figure 5).
For this purpose, gradually raise soft top (A) via Xentry (figure 6).
To determine the lowest clearance, soft top (A) and GAK rear edge (B) must be at the same height.
Figure 5 Raising the soft top
Figure 6 Raising the soft top header bow via XENTRY
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The following distance measurements must always be carried out with a raised soft top coming from the
convertible position (most critical distance in the movement)
Risk of damage to soft top!
Only perform the operation step if the values of the convertible roof frame outlet flap (GAK) are not OK!
5. Readjustment of not OK GAK (figure 7)
Perform distance measurement at narrowest location in movement between GAK and soft top.
A distance of at least 15 mm must always be ensured at both convertible roof frame outlet flaps to the soft top!
Figure 7 not OK
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6. Gradually move back convertible roof frame outlet flap (GAK) via XENTRY to a distance of 17 mm (figure 8).
Figure 8
Check whether sensors for GAK 1 intermediate position are at "Actuated".
Note: Per actuation, the mechanical system is moved backwards by approx. 1-2 mm
7. Carry out position adjustment of GAK via XENTRY (figure 9).
Both convertible roof frame outlet flaps (GAK) must align (figure 9).
A distance of at least 15 mm must always be ensured at both convertible roof frame outlet flaps to the soft top!
Figure 9
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2 people are required for the performance of this operation!!
Person 1: Measurement of distance
Person 2: Movement of GAK via Xentry
8. Manually raise soft top via Xentry up to "Cobra position" (figure 10).
The value must lie between 800 and 900 on the right side and -800 and -900 on the left side. Both values of "Hall
Sensor Motor CT left/right" show this value (see figure 11).
Figure 10
Figure 11
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9. Start teach-in run of soft top via XENTRY (figure 12).
Figure 12
10. Confirmation that part replacement has occurred (figure 13).
This is required for the "teach-in of header bow" (Start teach-in process).
Figure 13
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11. If the teach-in process is not successful (figure 14), please create a TIPS case.
If the teach-in process was successful, continue with operation step 12.
Figure 14
12. Read out calibration data and export as a PDF (figure 15).
Figure 15
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13. Evaluate calibration data.
Figure 16
In the case of not OK data after the calibration, please create a TIPS case.
__________________________________________________________________________________________________
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Warranty Information
Damage
Operation
Code
Number
77 930 01
12-1568
Description
Calibrate convertible roof frame outlet flap at soft top
Includes: Connect/disconnect diagnostic system (XENTRY Diagnosis) and
starter battery charger
Labor Time
(hrs.)
1.0
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-2023030004