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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

Bulletins, newest first
A5724342017082_12024-05-06. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information when the remote control key is inoperative.
A4824612034351_12024-03-06. Service bulletin. STEERING:COLUMN; UNKNOWN OR OTHER. This bulletin contains repair information for when there is a creaking/squeaking from the steering column when steering slowly.
A9124632044694_32024-03-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). This bulletin provides information pertaining to MMI Navigation database concerns.
451307203341222024-03-04. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ABS warning light on with additional warning lights on (EPB/TPMS/EPC/MIL) - Wire harness damage
441346201033452024-03-04. Service bulletin. WHEELS. Tightening wheel bolts
441344202256382024-03-04. Service bulletin. STEERING. Steering wheel shimmy, vibration and/or oscillation
441342202256372024-03-04. Service bulletin. SUSPENSION. Steering wheel shimmy, vibration and/or oscillation
441335202256352024-03-04. Service bulletin. STEERING. 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
401335202318732024-03-04. Service bulletin. STEERING. Squeaking noises when steering or maneuvering
401334201819452024-03-04. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
441449202256392024-03-04. Service bulletin. STEERING. Steering wheel shimmy, vibration, and/or oscillation
4414502022563102024-03-04. Service bulletin. STEERING. Steering wheel shimmy, vibration, and/or oscillation
461486202258452024-03-04. Service bulletin. SERVICE BRAKES. Brake pulsation diagnostic guidelines
401441201819462024-03-04. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER; SUSPENSION:FRONT:SHOCK ABSORBER. Shock absorber leaks: assessment aid
401440202318742024-03-04. Service bulletin. STEERING. Squeaking noises when steering or maneuvering
441455201033462024-03-04. Service bulletin. WHEELS. Tightening wheel bolts
481463202822042024-03-04. Service bulletin. STEERING. Steering wheel leather damage, all vehicles
4414562022563112024-03-04. Service bulletin. STEERING. Steering wheel shimmy, vibration, and/or oscillation
40144120181942024-02-26. Service bulletin. EQUIPMENT; STRUCTURE. Shock absorber leaks: assessment aid
40144020231872024-02-26. Service bulletin. STEERING. Squeaking noises when steering or maneuvering
40133520231872024-02-26. Service bulletin. STEERING. Squeaking noises when steering or maneuvering
40133420181942024-02-26. Service bulletin. BACK OVER PREVENTION; STRUCTURE. Shock absorber leaks: assessment aid
44133620225632024-02-20. Service bulletin. STEERING. Steering wheel shimmy, vibration and/or oscillation
37126720280532024-02-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TCM software update for downshift concerns

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