WenmarOpen by Wenmar Pro

Service bulletin LI77.21-P-075160

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10219261
Published by NHTSA2022-09-07
Manufacturer's numberLI77.21-P-075160
Manufacturer's date2022-08-11
NHTSA componentSTRUCTURE

NHTSA's 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)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Body and frame

Vehicles listed
MERCEDES-BENZ C 3002022

Listing a model year does not mean every vehicle of it is concerned: the document says which.