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Service bulletins for the 2012 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.

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

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
A351206 2030477-2017-11-08. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 35 number 12-05 dated August 10, 2012. Gearbox malfunction message in cluster. DTCs are logged. The DFCC is the 4-6 digit code that is typically listed before the fault code. Fault codes and DFCC codes must match exactly or this TSB should not be followed. Poor internal contact area on circuit board will lead to faults. Oil additives can cause the plastic circuit plates to delaminate causing contact loss.
A351208 2032211-2017-11-08. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Gearbox warning light on. Entries are logged individually or in combination, with P179E logged first (using DTC environmental data). If P179E is not logged first this TSB does not apply (using DTC environmental data), Continue with standard diagnosis. Entries are logged individually or in combination in the diagnosis protocol. The times the DTCs are logged are not relevant. The DFCC is the 4-6 digit code that is typically listed before the fault code . Fault codes and DFCC codes must match exactly or this TSB should not be followed. Incorrect driving mode sensor module.
A371430 2003658-2017-11-08. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE). Supersedes Technical Service Bulletin Group 37 number 13-07 dated May 29, 2013. 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). No DTCs are stored. 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.
A351315 2030477-2017-10-31. Service bulletin. STEERING:GEAR BOX (OTHER THAN RACK AND PINION); POWER TRAIN. Supersedes Technical Service Bulletin Group 35 number 13-14 dated August 30, 2013. Message appears in the information display: "Gearbox malfunction: you can continue driving". One or more fault entries are stored in the transmission control module. Fault codes and symptom codes must match exactly or this TSB should not be followed. Instructions for obtaining the symptom codes are in the Service section of this bulletin. Poor internal contact area on circuit board will lead to faults. Oil additives can cause the plastic circuit plates to delaminate, causing contact loss.
Executive Servic2017-10-27. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; POWER TRAIN; SERVICE BRAKES, HYDRAULIC:FLUID; ENGINE AND ENGINE COOLING. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service.
A421524 2026049-2017-10-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. Supersedes Technical Service Bulletin Group 42 number 13-17 dated March 18, 2013. Oil is leaking in the area of the Quattro sports rear differential (PR-PDU, PDR, or GH2) side flange or axle shaft inboard flange. Insufficient sealant on the protective cap on the inboard constant velocity joint at the rear differential on vehicles with a sports differential.
A011526 2041120-2017-10-25. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.
A151526 2039995-2017-10-25. Service bulletin. ENGINE; POWER TRAIN. Rattling noises are heard from the timing chain drive for about 1-3 seconds after the first engine start of the day. The noises are caused by one of the upper chain tensioners. The noises do not lead to damage. Improved chain tensioner.
A351620 2030477-2017-10-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. Gearbox malfunction message in cluster. DTCs P17D800, P179D00, P174000, P174C, P174B, P174F, P179C, P174A, and/or P174E are stored in the transmission control module. Fault codes and symptom codes must match exactly or this TSB should not be followed. Poor internal contact area on circuit board will lead to faults. Oil additives can cause the plastic circuit plates to delaminate, causing contact loss.
A351619 2032211-2017-10-04. Service bulletin. STEERING:GEAR BOX (OTHER THAN RACK AND PINION); POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM. Gearbox warning light on (DTCs P179E00, P179F00, P0700, P060A). The driver information system displays the message "gearbox malfunction: you can continue driving". There are two scenarios present. Scenario 1 is that entries are logged individually or in combination, with P179E logged first (using DTC environmental data).The entries are DTC P179E (Drive position sensor electrical error), DTC P0700 with DFCC 20196 (Transmission control system malfunction), DTC P1758 with DFCC 8464 (Terminal 15 voltage supply open circuit), and DTC P060A with DFCC 8126, 8345 (Internal control module monitoring processor performance) In this scenario, if DTC P179E is not logged first, this TSB does not apply. Scenario 2 is that entries are logged individually or in combination. The order in which the DTCs are logged is not relevant. The entries are DTC P179E with DFCC 8050, 8051, 8052, 8053, 17595, 17596, 17597, 17598, 17602 (Drive position sensor electrical error), DTC P179F with DFCC 8054, 8055, 8056, 8057, 17599, 17600, 17601 (Drive position sensor malfunction), DTC P0716 with DFCC 8096, 8101, 18153, 20738 (Input turbine/speed sensor ?A? circ. range/performance), DTC P171F with DFCC 8097, 8102, 18154 (Transmission input speed (RPM) sensor 2 implausible signal), DTC P0715 with DFCC 8094, 8103, 18161 (Input turbine/speed sensor ?A? circuit.), DTC P2765 with DFCC 8095, 8104 (Input turbine/speed sensor ?B? circuit), DTC P0501 with DFCC 8098 (Vehicle speed sensor ?A? range/performance), and DTC P2159 with DFCC 8099 (Vehicle speed sensor ?B? range/performance). Fault codes and DFCC codes must match exactly for this TSB to apply. The DFCC is the 4-6 digit code that is typically listed before the fault code. Incorrect driving mode sensor module.
A371668203000752017-03-10. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION:COLUMN SHIFT ASSEMBLY. THIS BULLETIN PROVIDE INSTRUCTIONS FOR WHEN THERE ARE HARSH GEAR SHIFTS BUT THERE IS NO FAULTS STORED AND YOU CAN DUPLICATE THE CONCERN.
A351621203047782017-03-03. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THIS TECHNICAL SERVICE BULLETIN PROVIDES INSTRUCTIONS FOR DIAGNOSING AN ISSUE WITH THE MECHATRONICS CONTROL UNIT CIRCUIT BOARD AND INSTRUCTIONS FOR REPLACING IT.
SB-2026049/72016-05-09. Service bulletin. POWER TRAIN:DRIVELINE:DRIVESHAFT; SUSPENSION:REAR. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2026049/62016-05-09. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; SUSPENSION:REAR. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2032971/12016-05-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2028085/22016-05-09. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2030477/22016-05-09. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; STEERING:GEAR BOX (OTHER THAN RACK AND PINION). SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-2032224/12016-05-09. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE). SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-42-15-242015-10-14. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. AUDI: ON SOME VEHICLES, THE REAR DIFFERENTIAL SIDE FLANGE OR AXLE SHAFT INBOARD FLANGE IS LEAKING OIL FROM QUATTRO SPORTS AND PROTECTIVE CAP HAS INSUFFICIENT SEALANT ON INBOARD CONSTANT VELOCITY JOINT NEAR REAR DIFFERENTIAL. MODEL 2010-12 S4, 5, CABRIOLET. *PE
TSB-37-13-902013-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). AUDI: PSS 37 TRANSMISSION WARNING MESSAGE IN CLUSTER. GEARBOX IN LIMP MODE, FAULT P17E100 STORED IN TCM. THE FAULT IS SPORADIC AND USUALLY APPEARS AFTER A COLD START. FAULT IS CAUSED BY TRANSMISSION SOFTWARE THAT IS TOO SENSITIVE. *JS
TSB-42-12-132012-11-06. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN:DRIVELINE:DRIVESHAFT. AUDI: THE AXLE SHAFT INBOARD FLANGE AND QUATTRO SPORTS REAR DIFFERENTIAL (PR-PDU, PDR, OR GH2) SIDE FLANGE HAS AN OIL LEAKAGE. MODELS 2010-2012 S4, S5, S5 CABRIOLET. *PE UPDATED 04/16/2013 *JS
TSB-37-12-382012-04-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT; POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT; ELECTRICAL SYSTEM:IGNITION. AUDI: VEHICLE HAVE ISSUES WITH IGNITION KEY CAN NOT BE REMOVED FROM IGNITION; VEHICLE IN PARK POSITION BUT UNABLE TO MOVE SHIFTER; ENGINE SWITCHED OFF BUT REMOTE CONTROL CAN NOT LOCK WITH ADVANCED KEY; PARK IS NOT RECOGNIZED ELECTRICALLY. *PE
TSB-30-11-112012-03-13. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. AUDI: WHEN PRESSING FIRMLY ON CLUTCH PEDAL, CERTAIN MODEL YEAR VEHICLES MAY OR MAY START. *PE

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