# Service bulletin A421630 2029953\-

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: 10118309
- Published by NHTSA: 2017\-10\-04
- Manufacturer's number: A421630 2029953\-
- Manufacturer's date: 2016\-01\-27
- NHTSA component: SUSPENSION:REAR:SHOCK ABSORBER

## NHTSA's summary

Cracking or clicking noises are heard from the rear of the vehicle in the C pillar area when it is driven over bumps or rough roads. The noise comes from the upper shock absorber mounting. Optimized damper mounting gradually introduced in production.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10118309-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10118309-0001.pdf)

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

## Components

Suspension, Shocks and struts

## Vehicles listed

- 2012 to 2014 AUDI A6
- 2012 to 2014 AUDI A7

## Other bulletins for the same vehicles and component

- [40144120181946](/bulletins/10250959.md), 2024-03-04, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
- [A401549 2018194\-](/bulletins/10123658.md), 2017-11-17, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER; SUSPENSION:REAR:SHOCK ABSORBER. Supersedes Technical Service Bulletin Group 40 number 14\-41 dated July 2, 2014. Oil appears on one or several shock absorbers. Oil may appear on a shock absorber As a result of a leak because the shock absorber is damaged. Oil may appear on a shock absorber As a result of residue from when the shock was filled during production, or as a result of slight condensation in the seal area. This small amount of oil is for lubrication and it reduces wear on the seal.
- [A401441 2018194\-](/bulletins/10122540.md), 2017-11-08, Service bulletin: SUSPENSION:FRONT:SHOCK ABSORBER; SUSPENSION:REAR:SHOCK ABSORBER. Supersedes Technical Service Bulletin Group 40 number 13\-34 dated September 23, 2013. Oil appears on one or several shock absorbers.
- [A421523 2029953\-](/bulletins/10120035.md), 2017-10-21, Service bulletin: STRUCTURE:BODY:ROOF AND PILLARS; SUSPENSION:FRONT:SHOCK ABSORBER. Supersedes Technical Service Bulletin Group 42 number 13\-19 dated September 24, 2013. Cracking or clicking noises are heard from the rear of the vehicle in the C pillar area when it is driven over bumps or rough roads. The noise comes from the upper shock absorber mounting.
- [SB\-2029953/2](/bulletins/10067404.md), 2016-05-23, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

JSON: [/v1/bulletins/10118309](/v1/bulletins/10118309)

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