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Service bulletins for the 2006 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.

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

By type

By component

By trouble code

Bulletins, newest first
TRMDMV_PR_Audi2022-08-04. Service bulletin. EQUIPMENT; AIR BAGS. In conjunction with the Georgia Department of Revenue - Motor Vehicle Division and Department of Driver Services, Audi sent Takata airbag recall reminder notices to approximately 565 Audi owners in the State of Puerto Rico on July 25, 2022.
13352010043132022-08-01. Service bulletin. ENGINE AND ENGINE COOLING. Engine oils that meet Audi Oil Quality Standards.
1449202844022022-08-01. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION. The customer complains of one or more of the following issues: ? When the vehicle is completely refueled, the vehicle range (?distance to empty?) that is displayed is different than the vehicle range that was displayed the last time the vehicle was completely refueled. ? The displayed vehicle range drops inconsistently. ? After the vehicle is refueled, the displayed vehicle range does not change for a long period of time. ? When the vehicle is driven on hilly roads for a long period of time, the displayed vehicle range suddenly changes by a significant amount. ? There are no DTCs related to fuel senders stored in the instrument cluster control module, J285 (address word 17). This condition does not involve or affect the accuracy of the fuel level indicator, but only the estimated distance to empty display on the on-board computer.
1310201828842022-08-01. Service bulletin. BACK OVER PREVENTION. If the vehicle?s engine experienced a serious mechanical problem, it is possible that small pieces of metal debris resulting from the mechanical problem may have become deposited in the intake manifold, air intake hoses, exhaust manifolds, exhaust down-pipes, turbocharger, supercharger, and/or intercooler. If these pieces are not removed prior to the installation and operation of the replacement engine, the pieces may be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious engine damage.
TRMDMV_GA_Audi2022-07-01. Service bulletin. AIR BAGS. In conjunction with the Georgia Department of Revenue - Motor Vehicle Division and Department of Driver Services, Audi sent Takata airbag recall reminder notices to approximately 2,616 Audi owners in the State of Georgia on June 22, 2022.
TRMDMV_CA_Audi2022-06-07. Service bulletin. AIR BAGS. In conjunction with the California Department of Motor Vehicles (DMV), Audi sent Takata airbag recall reminder notices to approximately 12,349 Audi owners in the State of California on April 29, 2022.
37 13 07 20336582022-05-31. Service bulletin. POWER TRAIN. Vehicle lacks power or will not move after stop due to simultaneous depressing of the brake and accelerator pedals
27 13 19 20290102022-05-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Low battery charge: excess current draw location
AWA 22-042022-05-05. Service bulletin. AIR BAGS. This Document informs dealers on the new Takata warranty extension for 2005-2017 A3, A4 Avant, A4 Sedan, S4 Sedan, S4, Avant, A4 Cabriolet, S4 Cabriolet, A5 Cabriolet, S5 Cabriolet, A6 Avant, A6 Sedan, Q5, R8 Coupe, R8 Spyder, RS4 Cabriolet, RS4 Sedan, S6 Sedan, S6 Sedan, TT Coupe, and TT Roadster vehicles
37 14 31 20130022022-05-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:SEALS/GASKETS. As the sump pan gasket settles, the torque of the bolts decreases and the seal may leak. Automatic transmission fluid is leaking at the sump pan gasket.
37 14 30 20036582022-05-02. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE; POWER TRAIN. This condition may be caused when the brake pedal and the accelerator pedal are depressed simultaneously. Drivers who drive with their left foot resting on the brake pedal are prone to experience this condition. With the introduction of Electronic Power Control (EPC) (no accelerator cable) to fuel injection systems, an engine RPM control feature has been incorporated into the engine electronic control system software. Customer states that the engine returns to idle speed of approximately 1,400 RPM although the accelerator is depressed, and/or the vehicle hesitates (lacks power on take-off).
37 13 07 20336582022-05-02. Service bulletin. SERVICE BRAKES. This condition may be caused when the brake pedal and the accelerator pedal are depressed simultaneously. Drivers who consciously or unconsciously drive with their left foot resting on the brake pedal are prone to experience this condition. With the introduction of Electronic Power Control (EPC) (no accelerator cable) to fuel injection systems, an engine RPM control feature has been incorporated into the engine electronic control system software. As a result, application of the brake and accelerator pedals at the same time (brake pedal with left foot and accelerator pedal with right foot) results in the following: ? Brake pedal function (normal at all times) overrides any throttle application. ? Diagnostic Trouble Codes (DTCs) will not be stored. ? When the brake pedal is applied while the accelerator is depressed, engine RPMs will return to idle speeds of 1400 RPMs after approximately two seconds. ? When the accelerator is applied while the brake pedal is depressed, the vehicle accelerates slower than usual (reduced engine torque).
TRMALEA_AL_Audi2022-04-05. Service bulletin. AIR BAGS. In conjunction with the Alabama Law Enforcement Agency (ALEA), Audi is sending Takata airbag recall reminder notices to approximately 939 Audi owners in the State of Alabama on March 23, 2022.
TRMDOTPA_Audi2022-02-04. Service bulletin. AIR BAGS. In conjunction with the Pennsylvania Department of Transportation, Audi is sending Takata airbag recall reminder notices to approximately 4,943 Audi owners in the state of Pennsylvania on January 24, 2022.
TRMDPSSC_Audi2022-02-04. Service bulletin. AIR BAGS. In conjunction with the South Carolina Department of Public Safety, Audi is sending Takata airbag recall reminder notices to approximately 1,290 Audi owners in the state of South Carolina on January 24, 2022.
A0021552011732122022-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This bulletin contains general instructions for software updates.
DC 202109282021-10-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Dealer Communication - Vehicle Sales Reporting, Reinstatement, and Audit Policy Update - Effective September 30, 2021
A9121342018187_12021-10-05. Service bulletin. EQUIPMENT. This bulletin contains inspection guidelines for radio interference that causes noises in the speaker.
TRMDMVID_Audi2021-09-03. Service bulletin. AIR BAGS. In conjunction with the Idaho DMV, Audi will be sending Takata airbag recall reminder notices to approximately 688 Audi owners in the State of Idaho on August 30, 2021.
A0021482021205_62021-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.
TRMDMVNY_Audi2021-07-02. Service bulletin. AIR BAGS. In conjunction with the New York DMV, Audi will be sending Takata airbag recall reminder notices to approximately 6,957 Audi owners in the State of New York on June 21, 2021.
TRMTXDMV_Audi2021-06-03. Service bulletin. AIR BAGS. In conjunction with the Texas DMV, Audi will be sending Takata airbag recall reminder notices to approximately 7,185 Audi owners in the State of Texas on May 17, 2021.
A9021032058077_52021-06-03. Service bulletin. EQUIPMENT; SERVICE BRAKES. This bulletin contains instructions for determining unexpected Audi presense interventions.
A1021222018288_92021-06-03. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. This technical service bulletin reminds the reader to check for metal debris when replacing an engine.
A0021442052680_32021-06-03. Service bulletin. EQUIPMENT. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage).

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