LI77.21-P-075806

Sliding Sunroof Panel of Panoramic Sliding Sunroof Reversed
(Temporarily, Once, or Multiple times) During Closing Process
Topic number
LI77.21-P-075806
Version
4
Function group
77.21 - Panoramic roof
Date
6/20/23
Validity
Model series 296 with SA code 413 (Panoramic roof) up
to manufacturing date March 8, 2023.
Model series 294 with SA code 413 (Panoramic roof) up
to manufacturing date February 1, 2023.
Reason for change
Validity expansion to model series 294
Complaint
Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, or multiple times) during closing process, without entrapment event.
Cause
Sensitive parameterization of the automatic reversing function of the panoramic roof in combination with the seal
counterpressure.
Remedy
1.
2.
Open the sliding sunroof panel of the panoramic roof completely (sliding position) and wait 24 hours (so that the
seals can expand/be fully established, if they have been flattened).
Standardize panoramic roof with diagnostic system and carry out teach-in run for automatic reversing function.
WIS-References
Document number
Title
Note
AD00.00-P-2000-06FR
Connect/disconnect diagnostic device -
Symptoms
Body > Roof system > Tilting/sliding sunroof system > Does not close
Operation numbers/damage codes
Op. no.
Operation text
540650
Maintain Voltage for Testing
541011
Perform Control Unit Log Incl. Quick
Test
20.06.2023 15:57:24
© Copyright Mercedes-Benz AG
Time
Damage
code
Note
8201DGR
RROWELL
Page 1 / 2
776901
Standardize Panoramic Sliding Sunroof and Teach In Automatic Reversing
Function
20.06.2023 15:57:24
© Copyright Mercedes-Benz AG
8201DGR
RROWELL
Page 2 / 2