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Service bulletin LI77.21-P-079102

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 id11017205
Published by NHTSA2025-04-24
Manufacturer's numberLI77.21-P-079102
Manufacturer's date2025-04-21
NHTSA componentSTRUCTURE:BODY

NHTSA's summary

Complaint Creaking or ticking noise during driving operation - in particular in the event of stronger body stimuli such as on rough roads - from the left and/or right rear area (near the roller sunblind bearings) of the panoramic roof frame. Cause Relative movement of the contact areas of the rear crossmember to the side metal component parts of the panoramic roof frame (picture_1) Remedy 1. Loosen roller sunblind of panoramic roof; to do so process operation steps 1 up to and including 12 in AR77.21- P-0215MEC; removal of the wind deflector (operation step 2) is not required 2. Slide roller sunblind of panoramic roof slightly forward and expose crossmember on left (picture_2) and right (picture_3) 3. Carefully enlarge gap between crossmember and side metal component part of the panoramic roof frame with a wedge (picture_4) 4. Press Teroson PU6700 or 6800 (adhesive/seam seal) into the gap (picture_5) 5. Spread adhesive/seam seal to prevent contact with the roller blind material (picture_6) 6. Repeat point 3 to 5 on the other side 7. Installation of roller sunblind of panoramic roof in the reverse order

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 AMG GLE53 4MATIC+2024
MERCEDES-BENZ AMG GLE632024
MERCEDES-BENZ AMG GLE63 S 4MATIC+2024
MERCEDES-BENZ GLE 4502024
MERCEDES-BENZ GLE 450E 4MATIC2024 to 2025

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