# Service bulletin A421318 2021771\-

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: 10123578
- Published by NHTSA: 2017\-11\-17
- Manufacturer's number: A421318 2021771\-
- Manufacturer's date: 2013\-06\-10
- NHTSA component: SUSPENSION

## NHTSA's summary

Supersedes Technical Service Bulletin Group 40 number 10\-10 dated September 10, 2010. Light cracking or rubbing noises when steering. The noise emanates from the front suspension strut mounting. The complaint occurs most often when the vehicle is maneuvered at slow speeds \(e.g., parking\) or when the steering wheel is turned while the vehicle is not moving. The noise is not caused by extreme load on only one suspension strut \(e.g., slowly driving uphill while turning the steering wheel\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10123578-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10123578-0001.pdf)

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

## Components

Suspension

## Vehicles listed

- 2006 to 2011 AUDI A3
- 2008 to 2010 AUDI TT
- 2011 AUDI TT ROADSTER

## 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.
- [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.
- [44134220225637](/bulletins/10251023.md), 2024-03-04, Service bulletin: SUSPENSION. Steering wheel shimmy, vibration and/or oscillation
- [42131820217713](/bulletins/10251006.md), 2024-03-04, Service bulletin: SUSPENSION. Light cracking or rubbing noises from suspension strut when steering
- [40133420181945](/bulletins/10250999.md), 2024-03-04, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
- [40144120181946](/bulletins/10250959.md), 2024-03-04, Service bulletin: SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
- [4213182021771](/bulletins/10250670.md), 2024-02-26, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); SUSPENSION. Light cracking or rubbing noises from suspension strut when steering
- [4012282031722](/bulletins/10250469.md), 2024-02-20, Service bulletin: SUSPENSION. noises from front lower control arm mounting
- [131520275854](/bulletins/10216701.md), 2022-08-01, Service bulletin: SUSPENSION; FUEL SYSTEM, GASOLINE. Because of exhaust gas pulsations, the wastegate flap and rods vibrate at the start of the boost air control. This vibration causes rattling or jarring noises.
- [4413442022563 8](/bulletins/10204489.md), 2021-12-13, Service bulletin: SUSPENSION; TIRES; WHEELS; STEERING. Customer feels vibration in the seat, vehicle floor, footwell, pedals, or steering wheel.

JSON: [/v1/bulletins/10123578](/v1/bulletins/10123578)

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