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Service bulletins for the 2009 Audi S4

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.

226 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Suspension are shown. Show all

Bulletins, newest first
441342202256372024-03-04. Service bulletin. SUSPENSION. Steering wheel shimmy, vibration and/or oscillation
431319203416212024-03-04. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). Replaced adaptive damping suspension control module cannot be coded
401334201819452024-03-04. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
401441201819462024-03-04. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
4413442022563 82021-12-13. Service bulletin. SUSPENSION; TIRES; WHEELS; STEERING. Customer feels vibration in the seat, vehicle floor, footwell, pedals, or steering wheel.
A4021242016453_42021-05-06. Service bulletin. SUSPENSION. This bulletin contains instructions for determining if bushings need to be replaced.
A441969 20225632019-04-01. Service bulletin. SUSPENSION. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A441764 2022563-2018-02-05. Service bulletin. SUSPENSION:FRONT. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A441663 2022563-2018-02-05. Service bulletin. SUSPENSION:FRONT. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A401770 2018194-2018-02-05. Service bulletin. SUSPENSION. This informational bulletin contains knowledge on why oil may appear on one or several of the shock absorbers.
A431319 2034162-2017-11-17. Service bulletin. SUSPENSION. The adaptive damping suspension control module, J250, cannot be coded via SVM spec/actual after it has been replaced. A new generation of the adaptive damping suspension control module, J250, was placed into production. The new generation control module must be coded and parameterized using an SVM code, which is listed in the attached ETKA Parts Bulletin, 9-119. This parts bulletin can be found in the ETKA Remarks for the part number.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.