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
| ATE-17-05 | 2018-02-05. Service bulletin. EQUIPMENT. Due to increasing requests for high voltage personal protective equipment (HVE PPE) for dealer technicians working with high voltage vehicles (Hybrid, Plugin Hybrid, Electric Vehicle), the Volkswagen Tools and Equipment Team has identified two US based suppliers to support dealers in USA and Canada. |
|---|---|
| A921613 2038151- | 2018-02-05. Service bulletin. EQUIPMENT. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct. |
| A921612 2038151- | 2018-02-05. Service bulletin. EQUIPMENT. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct. |
| A441663 2022563- | 2018-02-05. Service bulletin. SUSPENSION:FRONT. This bulletin provides information regarding vibrations or movement that are felt in the wheel. |
| A441662 2010334- | 2018-02-05. Service bulletin. WHEELS. This information TSB provides information regarding the correct way to torque adjust a wheel bolt. |
| A351624 2030477- | 2018-02-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical service bulletin provides instructions for diagnosing an issue with the mechatronics control unit circuit board and instructions for replacing it. |
| A351623 2032211- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This technical service bulletin provides instructions for diagnosing an issue with the G676 sensor module and replacing it. |
| A011681 2033001- | 2018-02-05. Service bulletin. EQUIPMENT. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction. |
| A001684 2037949- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This technical bulletin provides instructions for an an error message and updating with an SVM code. |
| A911743 2042097- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin contains resource information for when the traffic feature is inoperative in the MMI navigation. |
| A201796 2043758- | 2018-02-05. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin instructs the reader to diagnose issues with fuel pressure and to replace the fuel delivery unit with the new kit if the correct DTC and symptom code combination is present. |
| A011732 2033001- | 2018-02-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction. |
| A011730 2033001- | 2018-02-05. Service bulletin. ENGINE. This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction. |
| SM 52-2017 | 2018-02-05. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; EQUIPMENT. This special notice is to inform dealers to return all tail lamps with the part number listed that are below generation 14s. |
| 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. |
| A941791 2012749- | 2018-02-05. Service bulletin. EXTERIOR LIGHTING. This informational bulletin contains technical information for when there is condensation visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, and/or third brake light lens. |
| A911736 2024323- | 2018-02-05. Service bulletin. FORWARD COLLISION AVOIDANCE: DYNAMIC BRAKE SUPPORT/BRAKE ASSIST. This bulletin contains technical information regarding when the parking aid sporadically warns of obstacles that don't exist or it is inoperative/constant warning. |
| A191789 2046712- | 2018-02-05. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap. |
| A201790 2043758 | 2018-02-05. Service bulletin. FUEL SYSTEM, GASOLINE. This bulletin instructs the reader to diagnose issues with fuel pressure and to replace the fuel delivery unit with the new kit if the correct DTC and symptom code combination is present. |
| A871447 2010146- | 2017-12-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 12-27 dated April 24, 2012. There is an unpleasant, musty odor coming from the heating and ventilation system. The odor usually occurs when the vehicle has been sitting unused for five hours or more. The odor usually occurs within 20 to 60 seconds after the vehicle is started. Condensation, which is a normal condition in all A/C systems, can cause a musty odor. If the odor is noticeable in the vehicle when the engine is not turned on, the cause may be mold and mildew in the passenger compartment, and not be related to the A/C system. All other possible sources of the odor must be investigated before this bulletin can be performed. |
| A471405 2030704- | 2017-12-14. Service bulletin. SERVICE BRAKES. Supersedes Technical Service Bulletin Group 47 number 12-04 dated September 5, 2012. Rattling noises are heard from the front axle when the vehicle is driven over bumpy or rough roads. Poor quality of some retaining springs causes this condition. Functionality of the brakes is not affected. |
| A001459 2029737- | 2017-12-14. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 00 number 12-34 dated June 6, 2012. The process of draining oil through the drain plug is not always tidy. When oil is drained through the drain plug, the oil might spill on components around the oil pan area. If it is not properly cleaned up, this spilled oil could drip after the procedure is complete, causing unnecessary customer complaints. |
| A451408 2033412- | 2017-12-14. Service bulletin. STEERING; ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 45 number 13-07 dated September 25, 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 with description ?Brake control module - no signal/communication? are present in several control units. 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. |
| A011390 2033767- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. 01 MIL on (DTC P1196/P1197/P0135, heater circuit fault lambda sensor) - Repair Authorization. |
| A011389 2033768- | 2017-12-05. Service bulletin. ELECTRICAL SYSTEM. MIL on. A cylinder misfire fault (DTC P0301 ? P0306) with DTC P130A is stored in the engine control module (ECM), J623 (address word 01). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.