# Service bulletin LI82.70\-P\-077433

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: 10249479
- Published by NHTSA: 2024\-02\-01
- Manufacturer's number: LI82.70\-P\-077433
- Manufacturer's date: 2024\-01\-31
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. A. Seating of the microphones in the headliner. Side edges are covered by the textile cover \(see picture "1"\) B. Assembly of microphones \(B25/20 or B25/21\) in the headliner. C. Dirt inside the microphone housing 1. Press finger on rear of microphone \(on adhesive tape\) 2. Remove microphone cap from the front 3. Eliminate protruding material residues of the microphone cutout at the headliner, e.g. with a soldering iron. The microphone must be seated in the headliner as shown in picture "2". 4. Push microphone from behind until it is firmly pressed into the headliner 5. Maintain pressure and press/clip cap into microphone from the front. Note: The cover cap must be clearly heard and felt to engage. 6. This procedure must be carried out on both microphones \(B25/20 and B25/21\) Note: It is recommended to replace the cover caps.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249479-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249479-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2023 to 2024 MERCEDES\-BENZ AMG EQE
- 2023 to 2024 MERCEDES\-BENZ EQE 350\+
- 2023 to 2024 MERCEDES\-BENZ EQE 500
- 2023 MERCEDES\-BENZ EQE350
- 2023 MERCEDES\-BENZ EQE350\+
- 2023 MERCEDES\-BENZ EQE500
- 2023 MERCEDES\-BENZ redundant EQE 350 4MATIC

JSON: [/v1/bulletins/10249479](/v1/bulletins/10249479)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI82.70-P-077433&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10249479&vehicle=Service%20bulletin%20LI82.70-P-077433)