# Service bulletin LI77.21\-P\-074971

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.

- Type: Service bulletin
- NHTSA id: 10240164
- Published by NHTSA: 2023\-08\-02
- Manufacturer's number: LI77.21\-P\-074971
- Manufacturer's date: 2023\-07\-25
- NHTSA component: VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE

## NHTSA's summary

Sliding sunroof panel of panoramic sliding sunroof reversed \(temporarily, once, multiple times\) during closing process without entrapment event. It is not possible to save the relearning process for force progression after each actuation. A, e.g. mechanical sluggishness caused by aging cannot be compensated for here. The teach\-in process does not properly save after each actuation. Note: Conditions such as slow operation of the sunroof due to aging of mechanical components cannot be compensated for during this process. Perform SCN Coding of panoramic roof control unit \(PSD, A98, TSSR223\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240164-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240164-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame, Glass, wipers and mirrors, Sunroof

## Vehicles listed

- 2022 to 2023 MERCEDES\-BENZ AMG C43
- 2022 to 2023 MERCEDES\-BENZ AMG C63 S
- 2023 MERCEDES\-BENZ AMG EQE
- 2023 MERCEDES\-BENZ AMG EQS
- 2023 MERCEDES\-BENZ AMG EQS 53
- 2022 to 2023 MERCEDES\-BENZ C 300
- 2023 MERCEDES\-BENZ EQE 350\+
- 2023 MERCEDES\-BENZ EQE 500
- 2023 MERCEDES\-BENZ EQE350
- 2023 MERCEDES\-BENZ EQE350\+
- 2023 MERCEDES\-BENZ EQE500
- 2023 MERCEDES\-BENZ EQS 450\+
- 2023 MERCEDES\-BENZ EQS 580
- 2023 MERCEDES\-BENZ EQS450
- 2023 MERCEDES\-BENZ EQS450\+
- 2023 MERCEDES\-BENZ EQS580
- 2023 MERCEDES\-BENZ redundant EQE 350 4MATIC
- 2023 MERCEDES\-BENZ redundant EQS 450

JSON: [/v1/bulletins/10240164](/v1/bulletins/10240164)

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