# Service bulletin A421527 2042539\-

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: 10123660
- Published by NHTSA: 2017\-11\-17
- Manufacturer's number: A421527 2042539\-
- Manufacturer's date: 2015\-12\-04
- NHTSA component: SUSPENSION:REAR:SHOCK ABSORBER

## NHTSA's summary

Supersedes Technical Service Bulletin Group 42 number 15\-25 dated November 25, 2015. Customer may report hearing rumbling noises from the rear of the vehicle when driving on very uneven roads or over potholes. This bulletin only applies to TTS vehicles with Audi magnetic ride. The rear shock mounts are causing the noises.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10123660-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10123660-0001.pdf)

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

## Components

Suspension, Shocks and struts

## Vehicles listed

- 2016 AUDI TTS

## Other bulletins for the same vehicles and component

- [A4022462047758\_8](/bulletins/10216843.md), 2022-08-03, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER; STEERING; SUSPENSION:REAR:SHOCK ABSORBER. This bulletin states to lightly lubricate the contact surface between the buffer stop for the shock absorber, and the front shock absorber cap to address cracking noises/spring jumps when steering or maneuvering.
- [A401881 2044060\-](/bulletins/10145646.md), 2018-10-15, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER. This technical service bulletin asks the reader to check for improperly installed or deformed front shock bellows and to replace if necessary.
- [A401773 2044060\-](/bulletins/10127827.md), 2018-02-05, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER. This technical service bulletin asks the reader to check for improperly installed or deformed front shock bellows and to replace if necessary.
- [A421525 2042539\-](/bulletins/10123608.md), 2017-11-17, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER. Customer may report hearing rumbling noises from the rear of the vehicle when driving on very uneven roads or over potholes. This bulletin only applies to TTS vehicles with Audi magnetic ride. The rear shock mounts are causing the noises.
- [A421628 2042539\-](/bulletins/10118307.md), 2017-10-04, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER. Rear shock mounting noises. Customer may report hearing rumbling noises from the rear of the vehicle when driving on very uneven roads or over potholes. This bulletin only applies to TTS vehicles with Audi magnetic ride. The rear shock mounts are causing the noises.

JSON: [/v1/bulletins/10123660](/v1/bulletins/10123660)

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