Mercedes-Benz C 300 2022 — technical service bulletin
Bulletin LI77.21-P-075160 · NHTSA communication 10219261 · issued Aug 11, 2022
Technical service bulletin
communication type
Structure
component
2022
model years
1
vehicle entries
Official summary
Complaint The glass panel of the Panoramic Sliding Sunroof may not open/close when actuated via the slider of the overhead control panel. Note: The sunroof does actuate via XENTRY Diagnosis and other overhead control panel functions are not affected. Cause Previously released Panoramic Sliding Roof control unit (A98) software Remedy Perform initial start-up of Panoramic Sliding Roof control unit (A98)
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.