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.
By type
By component
By trouble code
By topic
| A011471 2036761- | 2017-11-08. Service bulletin. ENGINE AND ENGINE COOLING. The MIL is on. DTC P164B(00) is stored in the ECM. The oil pressure switch is defective. |
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| A911419 2026895- | 2017-11-08. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 11-16 dated October 5, 2011. During a Bluetooth call, the sound is difficult to hear for the other party. Voice recognition accuracy is poor. This TSB provides guidelines for testing microphones in a vehicle. |
| A481457 2034351- | 2017-11-08. Service bulletin. STEERING; WHEELS. Supersedes Technical Service Bulletin Group 48 number 13-47 dated August 2, 2013. Customer may report hearing creaking or squeaking noise from the steering column when steering slowly (the noise can be duplicated while the vehicle is stationary if the steering wheel is turned slowly). The noise may get louder at higher temperatures or when the vehicle is driven for a longer period of time. The noise comes from the sealing sleeve/steering column opening on the bulkhead. Listen to the attached audio file for example of the noise. Insufficient lubrication of the intermediate steering shaft in the area of the sealing sleeve. |
| A461466 2022584- | 2017-11-08. Service bulletin. STEERING; WHEELS; SERVICE BRAKES, HYDRAULIC. Supersedes Technical Service Bulletin Group 46 number 12-23 dated June 18, 2012. Customer may report that the steering wheel vibrates or pulsates when the brakes are applied. Document contains the brake pulsation diagnostic guidelines. |
| Reference-Oil Ca | 2017-11-03. Service bulletin. ENGINE; EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains the Audi oil capacity chart. |
| A871346 2035582- | 2017-11-03. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. The A/C Compressor has been diagnosed as faulty and will be replaced under warranty. When performing replacement of an A/C Compressor under warranty, the amount of refrigerant and oil recovered must be documented. |
| 741312 2004327-4 | 2017-11-03. Service bulletin. STRUCTURE; EQUIPMENT. Supersedes Technical Service Bulletin Group 70 number 08-39 dated December 4, 2008. Leather upholstery is dirty or stained. |
| A911314 2013790- | 2017-10-31. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL. Supersedes Technical Service Bulletin Group 91 number 11-25 dated November 29, 2011. The navigation DVD or other CD/DVD cannot be ejected. There are no DTCs stored in the corresponding module. The eject button is not stuck. When the eject button is pushed, the drive does not sound as if it is trying to eject the CD/DVD. Vehicles with DVD-based navigation systems now have the navigation DVD installed during production. To prevent theft of the DVD during transportation, the eject button of the navigation drive is disabled. The navigation system itself (e.g., route guidance) functions as specified. The eject buttons of vehicles without DVD-based navigation systems are not disabled during production, but could behave as described in the Condition section of this bulletin. The eject button can be enabled through Guided Fault Finding. |
| A441344 2022563- | 2017-10-31. Service bulletin. STEERING; SUSPENSION. Supersedes Technical Service Bulletin Group 44 number 13-42 dated September 27, 2013. Customer feels vibration in the seat, vehicle floor, footwell, pedals, or steering wheel. This condition does not lead to any handling concerns or loss of vehicle control. The customer feels the vibration while driving at highway speeds from 55 - 80 mph (88 - 128 km/h). This bulletin is not applicable if this vehicle has a Repair Authorization on this topic. |
| 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. |
| A441346 2010334- | 2017-10-31. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS; WHEELS. Supersedes Technical Service Bulletin Group 44 number 12-32 dated August 2, 2012. Wheel bolt requires torque adjustment. Torque sticks, torque extension bars, and impact guns/wrenches are not approved by Audi of America, Inc., and should not be used to apply torque to wheel bolts. Always use a calibrated torque wrench to attain the correct wheel bolt torque and follow the proper wheel tightening procedure as outlined in Elsa. Proper use of a calibrated torque wrench ensures that all wheel bolts are tightened equally and reduces the chances of repeat repairs. Using methods other than a calibrated torque wrench to attain correct wheel bolt torque may lead to problems. |
| A271320 2033524- | 2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 27 number 13-17 dated April 5, 2013. Cruise control deactivates sporadically or cannot be activated. A new set speed cannot be saved. ?Set? button on cruise control stalk does not work. DTCs are present in the vehicle. Incorrect tolerances of cruise control ?Set? button. |
| A011345 2031458- | 2017-10-31. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 01 number 13-66 dated January 17, 2013. MIL on. DTCs are stored in the engine control module (ECM). Under extreme driving conditions (such short-distance, stop-and-go driving), high crankcase pressure can cause the DTCs to appear. The condition can be improved and the DTCs eliminated when the crankcase pressure valve is changed to a lower operating pressure and the ECM software is updated to compensate for new crankcase pressure. |
| A911304 2013422- | 2017-10-31. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 12-49 dated July 31, 2012. The Bluetooth® telephone cannot be connected to the vehicle?s Infotainment system. Certain restrictions are present when a Bluetooth device is connected to the vehicle. The restrictions vary depending on the vehicle system present. |
| A901341 2010353- | 2017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 90 number 10-14 dated August 10, 2010. Cigarette lighter element will not lock into the lighter socket -U1- to begin the heating process, or the lighter element will not automatically release once the heating process has completed. As a result, the socket can become inoperative when used as a power outlet. |
| A571394 2035367- | 2017-10-31. Service bulletin. EQUIPMENT. Various features in the rear passenger compartment are inoperative. Some features may include power rear windows, rear climate control operating unit, rear sunroof panel, rear reading lamps, rear cigarette lighters, etc. By design, many electronically-controlled features in the rear passenger compartment, in addition to the power rear windows, are deactivated if the child lock in the driver's door is activated. |
| A511307 2009967- | 2017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 51 number 13-06 dated August 9, 2013. Instructions for vehicle inspection, protection removal, and detailing. |
| A481354 2028220- | 2017-10-31. Service bulletin. WHEELS; STEERING. Supersedes Technical Service Bulletin Group 48 number 12-30 dated June 25, 2012. Steering wheel appearance damaged due to external impact (e.g., contact with finger nails, zippers, watches, rings, etc.). External impact (e.g., contact with finger nails, zippers, watches, rings etc.) can cause damage to the appearance of the steering wheel. This type of damage is not warrantable, as numerous investigations have shown that there is no fault in material or workmanship. |
| A451307 2033412- | 2017-10-31. Service bulletin. STEERING. Supersedes Technical Service Bulletin Group 97 number 13-35 dated March 27, 2013. Steering wheel does not lock. Various warning lights are on. Steering feels stiffer than usual. The engine cannot be switched off. The ignition key cannot be removed. There are DTC entries present in the system (either static or sporadic). DTCs are stored in the ABS control module. This condition does not result in any drivability concerns. The steering system is fully connected. The insulation for the ABS wheel speed sensor is damaged in production. Over time, this can lead to corrosion on the wires and restricted functions with the ABS control module. Only the wires in the left bulkhead grommet are affected. |
| A441342 2022563- | 2017-10-31. Service bulletin. SUSPENSION; STEERING. Supersedes Technical Service Bulletin Group 44 number 13-36 dated February 18, 2013. This bulletin is not applicable if this vehicle has a Repair Authorization on this topic. Customer feels vibration in the seat, vehicle floor, footwell, pedals, or steering wheel. This condition does not lead to any handling concerns or loss of vehicle control. The customer feels the vibration in one or both of the following circumstances: * When driving at highway speeds from 55 - 80 mph (88 - 128 km/h). * When applying low brake pedal pressure with minor slow down. The vibrations felt by the customer could be a result of the harmonic vibrations caused by the radial force variation (RFV) of the tires. |
| A401335 2023187- | 2017-10-31. Service bulletin. STEERING; WHEELS. Supersedes Technical Service Bulletin Group 40 number 12-23 dated May 14, 2012. Squeaking noises are heard when the steering wheel is turned or maneuvered. The noises may be more prevalent in wet weather. The folds of the outer rubber boots on the front axle shafts may come in contact with each other when the steering wheel is turned, causing squeaking noises. These noises are more likely to occur when the vehicle is new. The volume and occurrence of the noise will dissipate after a short break-in period. |
| A191345 2034439- | 2017-10-31. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Supersedes Technical Service Bulletin Group 19 number 13-43 dated July 12, 2013. The coolant warning light is illuminated. Coolant is leaking from the front intercooler radiator because of stone damage to the radiator. When vehicles are driven on gravel roads, there is a greater chance of front-end stone impact damage to the intercooler radiator. |
| A101310 2018288- | 2017-10-31. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 10 number 10-02 dated September 14, 2010. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. 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. |
| A691326 2023323- | 2017-10-31. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 69 number 12-25 dated April 25, 2012. After the airbag control module (J234) has been replaced, the control unit cannot be coded via SVM spec/actual. An SVM code is required to code and parameterize the new service replacement airbag control module. Each model?s SVM code is provided in a parts bulletin (GP bulletin), which should have been referenced through ETKA when the module was replaced. The control module cannot be coded until the SVM code has been executed. |
| A271319 2029010- | 2017-10-31. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Supersedes Technical Service Bulletin Group 27 number 12-13 dated March 22, 2012. The customer may report a discharged battery when trying to start the vehicle. The condition results in a no start. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.