NHTSA ID Number: 10237252
Manufacturer Communication Number: LI65.20-P-076327
TSB/Document Date: 2023-06-05
Summary
Complaint Cracking and creaking noise from area of roof frame, C-pillar (inner) when driving on rough terrain. Cause Sheet metal sections in the area of the roof frame, C-pillar (inner) could cause noises due to tension or contact of the sheet metal. Remedy 1. Remove the headliner and detach the head airbag in the working area. 2. Park vehicle in the sun/heat and allow it to warm up. 3. Then perform a test drive; the noise complaints must be reproducible. 4. Insert a flat head screwdriver through the body-in-white opening in the upper area of the roof frame at a flat angle to the side wall until resistance is met. 5. Check that the correct position has been reached, i.e. that the screwdriver has made contact at the two sections of sheet metal causing the noise in front of the caulking. 6. Work on the noise-causing sheet metal sections through the seam in order to separate them. 7. Perform a test drive and check the effectiveness. 8. Perform the anticorrosion protection in the working area according to manufacturer specifications. 9. Install remaining parts.
Noise from area of roof frame, C-pillar when driving on rough terrain
Topic number
LI65.20-P-076327
Version
1
Function group
65.20 - Roof frame
Date
5/25/23
Validity
Model series 167
Reason for change
Complaint
Cracking and creaking noise from area of roof frame, C-pillar (inner) when driving on rough terrain.
Cause
Sheet metal sections in the area of the roof frame, C-pillar (inner) could cause noises due to tension or contact of the
sheet metal.
Remedy
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remove the headliner and detach the head airbag in the working area.
Park vehicle in the sun/heat and allow it to warm up.
Then perform a test drive; the noise complaints must be reproducible.
Insert a flat head screwdriver through the body-in-white opening in the upper area of the roof frame at a flat angle to the side wall until resistance is met.
Check that the correct position has been reached, i.e. that the screwdriver has made contact at the two sections
of sheet metal causing the noise in front of the caulking.
Work on the noise-causing sheet metal sections through the seam in order to separate them.
Perform a test drive and check the effectiveness.
Perform the anticorrosion protection in the working area according to manufacturer specifications.
Install remaining parts.
Attachments
File
Description
rework.mp4
Remedy for roof frame, C-pillar noise complaint video
Remedy for Roof Frame_C-Pillar Noise Complaint.pdf
Remedy for Roof Frame, C-Pillar Noise Complaint
WIS-References
Document number
Title
Note
AR68.30-P-4300ME
Remove/install headliner
Shown on model 167.1
Symptoms
Body > Body/Cab > Body noises > Cracking/creaking
Operation numbers/damage codes
25.05.2023 17:25:11
© Copyright Mercedes-Benz
AG
RROWELL
Page 1 / 2
Op. no.
Operation text
Time
Damage
code
Note
651170
Repair roof frame
2
65A0436
Left
651170
Repair roof frame
2
65N0436
Right
681614
Remove/install headliner
681617
Remove/install headliner VEH with sliding sunroof
681611
Remove/install headliner VEH with panoramic sliding sunroof
910000
Unfasten/fasten left head sidebag unit
910000
Unfasten/fasten right head sidebag unit
25.05.2023 17:25:11
© Copyright Mercedes-Benz AG
RROWELL
Page 2 / 2
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TSB/Document ID: LI65.20-P-076327
Replacement Service Bulletin Number:
MFR Communication Date: 2023-05-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: STRUCTURE
MFR Component System:
MFR Component Subsystem:
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