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June 23, 2023 Service bulletin

Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, or multiple times) during...

Mercedes-Benz technical service bulletin LI77.21-P-075806 for 2023 Mercedes-Benz EQS 450, 2023 Mercedes-Benz EQE 350+ and 2023 Mercedes-Benz EQS 580 and others.

Bulletin number
LI77.21-P-075806
Component
Visibility: sun/moon roof assembly
Summary
Sliding sunroof panel of panoramic sliding sunroof reversed (temporarily, once, or multiple times) during closing process, without entrapment event. Sensitive parameterization of the automatic reversing function of the panoramic roof in combination with the seal counterpressure. Remedy 1. Open the sliding sunroof panel of the panoramic roof completely (sliding position) and wait 24 hours (so that the seals can expand/be fully established, if they have been flattened). 2. Standardize panoramic roof with diagnostic system and carry out teach-in run for automatic reversing function.

Owners of these vehicles have filed 2 complaints in the visibility category.

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