# Service bulletin A401994 20543861

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: 10156494
- Published by NHTSA: 2019\-04\-02
- Manufacturer's number: A401994 20543861
- Manufacturer's date: 2019\-03\-19
- NHTSA component: SUSPENSION

## NHTSA's summary

This informational bulletin contains instructions for front suspension noises at PDI.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10156494-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10156494-9999.pdf)

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

## Components

Suspension

## Vehicles listed

- 2019 AUDI A6
- 2019 AUDI A7

## Other bulletins for the same vehicles and component

- [TSB\_2023187\_8](/bulletins/11030983.md), 2026-04-07, Service bulletin: SUSPENSION. This bulletin provides informaiotn regarding squeaking noises when steering or maneuvering.
- [TSB\_2062932\_2](/bulletins/11025365.md), 2025-11-08, Service bulletin: SUSPENSION. This bulletin provides information when the measure value block is incorrect in the suspension control module for the air suspension compressor.
- [TSB\_2076605\_2](/bulletins/11023773.md), 2025-10-03, Service bulletin: SUSPENSION. This TSB provides informaiton pertaining to noises from the guide link bush.
- [TSB\_2076604\_2](/bulletins/11023772.md), 2025-10-03, Service bulletin: SUSPENSION. This bulletin provides information on locating noises coming from the suspension.
- [TSB\_2018194\_12](/bulletins/11016502.md), 2025-04-04, Service bulletin: SUSPENSION. This bulletin serves as an assessment aid for shock absorber leaks.
- [A4325022061907\_3](/bulletins/11013721.md), 2025-02-05, Service bulletin: SUSPENSION. This bulletin provides information when vehicles equipped with self leveling suspension lean to one side when parked.
- [A4025932076605\_1](/bulletins/11013719.md), 2025-02-05, Service bulletin: SUSPENSION. This TSB provides informaiton pertaining to noises from the guide link bush.
- [A4025922076604\_1](/bulletins/11013718.md), 2025-02-05, Service bulletin: SUSPENSION. This TSB provides informaiton about locating noises coming from suspension.
- [A4025902018194\_11](/bulletins/11013716.md), 2025-02-05, Service bulletin: SUSPENSION. This bulletin is an assessment aid for shock absorber leaks.
- [A3725312074822\_2](/bulletins/11013709.md), 2025-02-05, Service bulletin: SUSPENSION. This bulletin provides information when noises from wheel input shaft/drive shaft are reported.

JSON: [/v1/bulletins/10156494](/v1/bulletins/10156494)

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