LI77.21-P-074971

Sliding Sunroof Panel of Panoramic Sliding Sunroof
is Reversed (Temporarily, Once, or Multiple Times)
During Closing Process Without Entrapment Event
Topic number
LI77.21-P-074971
Version
3
Function group
77.21 - Panoramic roof
Date
7/21/23
Validity
Model series 206 with SA code 413 (Panoramic roof) up
to manufacturing date June 30, 2023.
Model series 295 with SA code 413 (Panoramic roof) up
to manufacturing date June 30, 2023.
Model series 297 with SA code 413 (Panoramic roof) up
to manufacturing date June 30, 2023.
Reason for change
Use of new software A2149028501 or later (series, field:
Determination of the SW-SNR via XENTRY)
Complaint
Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, multiple times) during closing process
without entrapment event.
Cause
It is not possible to save the relearning process for force progression after each actuation. A, e.g. mechanical sluggishness caused by aging cannot be compensated for here.
ause:
The teach-in process does not properly save after each actuation.
Note: Conditions such as slow operation of the sunroof due to aging of mechanical components cannot be compensated for during this process.
Remedy
Perform SCN Coding of panoramic roof control unit (PSD, A98, TSSR223).
WIS-References
Document number
Title
AD00.00-P-2000-06FR
Connect/disconnect diagnostic device -
21.07.2023 13:10:38
© Copyright Mercedes-Benz AG
Note
RROWELL
Page 1 / 2
Symptoms
Body > Roof system > Tilting/sliding sunroof system > Does not close
Operation numbers/damage codes
Op. no.
Operation text
540650
Damage
code
Note
Maintain on-board electrical system voltage (for testing and diagnosis work)
7811DGR
For model series 297, work must only be invoiced once per workshop order.
540650
Maintain on-board electrical system voltage (for testing and diagnosis work)
7811DGR
For model series 295, work must only be invoiced once per workshop order.
540650
Maintain on-board electrical system voltage (for testing and diagnosis work)
8201DGR
For model series 206, work must only be invoiced once per workshop order.
540991
Program and code control unit (maintain
after quick test incl. on-board electrical
system voltage)
8201DGR
For model series 206
540991
Program and code control unit (maintain
after quick test incl. on-board electrical
system voltage)
7811DGR
For model series 295
540991
Program and code control unit (maintain
after quick test incl. on-board electrical
system voltage)
7811DGR
For model series 297
541011
Perform quick test
8201DGR
For model series 206, work must only be invoiced once per workshop order.
541011
Perform quick test
7811DGR
For model series 295, work must only be invoiced once per workshop order.
541011
Perform quick test
7811DGR
For model series 297, work must only be invoiced once per workshop order.
776901
Standardize panoramic sliding sunroof
and teach in automatic reversing function (after quick test)
8201DGR
For model series 206
776901
Standardize panoramic sliding sunroof
and teach in automatic reversing function (after quick test)
7811DGR
For model series 295
776901
Standardize panoramic sliding sunroof
and teach in automatic reversing function (after quick test)
7811DGR
For model series 297
21.07.2023 13:10:38
© Copyright Mercedes-Benz AG
Time
RROWELL
Page 2 / 2