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Service bulletins for the 2013 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.

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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
A911437 2030947-2017-11-08. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 91 number 13-92 dated July 16, 2013. The customer complains that when he or she is trying to place a phone call from the vehicle while using a Bluetooth®-connected phone, the phone call disconnects before it begins and an error shows on the MMI display. The message may be "Function not supported" or "Network error". The customer is using a phone with the Android operating system. In addition, Skype®, or another network-based communication software, is installed on the phone. Call can be placed directly from the phone without a problem. When the phone receives the request to place a call from the vehicle, a prompt appears on the phone asking the user to choose how the call should be placed. If the prompt is ignored, the MMI system disconnects the call because it assumes that the phone is not responding.
A911435 2026895-2017-11-08. Service bulletin. EQUIPMENT:ELECTRICAL. Supersedes Technical Service Bulletin Group 91 number 14-19 dated January 3, 2014. Customer complains that during Bluetooth calls, the person at the other end has trouble hearing the speaker in the vehicle. Voice recognition accuracy is poor. This TSB provides guidelines for testing microphones in a vehicle.
A961482 2036344-2017-11-08. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. The vehicle's anti-theft alarm sounds when the driver door is unlocked with a mechanical key. No DTCs are stored. The keyless remote was not used to unlock the vehicle. In order to minimize current draw after the ignition has been turned off, the electronics system of the vehicle goes into sleep mode. During this time, each module monitors the CAN bus more slowly than when the electronics system is awake. Because the system is being monitored more slowly, there is a delay in the waking of the central locking system. This delay causes a delay in the disabling of the anti-theft alarm system when the manual key is used. If the key is turned in less than a quarter of a second, the system can unlock the vehicle even though the anti-theft alarm has not been disabled.
A911429 2026888-2017-11-08. Service bulletin. EQUIPMENT:ELECTRICAL. Supersedes Technical Service Bulletin Group 91 number 12-50 dated August 1, 2012. Echo effects, caller on either end cannot hear conversation, sound distortion or feedback, and the sound is distorted, hisses, or scrapes occur during a phone call. This bulletin provides guidelines for analyzing the call quality of the Bluetooth system in the vehicle, and is not applicable to any Audi warranty.
Reference-Oil Ca2017-11-03. 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 2004327-42017-11-03. Service bulletin. STRUCTURE; EQUIPMENT. Supersedes Technical Service Bulletin Group 70 number 08-39 dated December 4, 2008. Leather upholstery is dirty or stained.
MY 2013 A4 PDI C2017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This document contains the Audi delivery report checklist.
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.
A961376 2030583-2017-10-31. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 96 number 13-56 dated May 2, 2013. Customer complains that Audi Side Assist is providing false warnings (no vehicle is present). Concern may or may not be duplicated. No DTCs are present in the Audi Side Assist system. This condition occurs due to an incorrect hardware set created by the supplier.
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.
Executive Servic2017-10-27. Service bulletin. SERVICE BRAKES, HYDRAULIC:FLUID; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; POWER TRAIN; ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service.
A871564 2010146-2017-10-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 87 number 15-63 dated May 18, 2015. 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.
A941785 2032338-2017-10-27. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. This bulletin contains repair information for LED daytime running lights that are not working.
A661546 2030471-2017-10-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Supersedes Technical Service Bulletin Group 66 number 13-30 dated June 4, 2013. Customer may report that the license plate attachment screws do not install properly. License plate mounting bracket threaded inserts stripped.
A171558 2038119-2017-10-25. Service bulletin. EQUIPMENT:ELECTRICAL. Supersedes Technical Service Bulletin Group 17 number 14-52 dated September 2, 2014. The message "Oil minimum warning, add one quart of oil" appears in the instrument cluster, but the oil level is above the minimum level (when measured with special tool T40178). There are no DTCs related to oil level stored in the ECM memory. The oil level sensor is defective.
A911588 2026390-2017-10-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. When a phonebook with a large number of contacts is being downloaded, the MMI screen freezes Briefly after the initial Bluetooth connection (shortly after the phone is bonded to the vehicle), after the ignition is switched on (shortly after the phone automatically reconnects with the vehicle), and after the phonebook has downloaded. When the voice recognition system is used, a message appears in the MMI screen stating that the phone book is too large and that the voice recognition system cannot be used. When music is streamed to the MMI system with the Bluetooth A2DP connection, the music intermittently pauses or seems to skip. The condition goes away once the phonebook transfer is completed. The MMI uses a limited portion of the total memory to convert the name and phone number fields of downloaded contacts into a voice command (text to speech). Extensive processing takes place if too many letters are used in the first and last name fields or if numbers or special characters are entered. The remaining memory is dynamically assigned to different applications which can also affect the capacity of the voice command processing. The MMI does not respond until the process is completed or it may freeze if phonebook fields are too large or do not follow typical formatting. In addition, the text-to-speech capacity is exceeded and the voice recognition system is rendered inactive.
A911583 2030465-2017-10-21. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. Supersedes Technical Service Bulletin Group 91 number 13-07 dated September 12, 2013. Group "A" complaints: Valid for vehicles with MMI software below version 566. Group "B" complaints: Valid for vehicles with MMI software at or above version 566 but below 715. Group "C" complaints: Valid for vehicles with MMI software at or above version 715 but not including 814. This bulletin only applies to vehicles with MMI3G+ Navigation (PR Number "7T6") and to vehicles with MMI3G+ Navigation, but without Audi Connect (PR Number "7T6" with additional PR code of "PND"). Continual improvements to MMI software provides solutions to issues experienced in the field.
A871563 2010146-2017-10-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Supersedes Technical Service Bulletin Group 87 number 14-54 dated August 28, 2014. 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.
A911582 2029903-2017-10-21. Service bulletin. EQUIPMENT:ELECTRICAL; BACK OVER PREVENTION: CAMERA SYSTEM. Supersedes Technical Service Bulletin Group 91 number 12-42 dated June 20, 2012. The customer complains about the picture quality of rearview backup camera image in the MMI screen. The picture is fuzzy or distorted. The picture looks too bright, too dark, or opaque in certain areas of the image. The colors of the objects in the image are incorrect or slightly off. The guidelines used for parking are fuzzy, distorted, or pixelated when compared with the guidelines displayed on another vehicle?s MMI.
A911578 2011500-2017-10-21. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Supersedes Technical Service Bulletin Group 91 number 08-129 dated November 12, 2008. Customer states that the reception of satellite radio occasionally fades or drops out. The information display may show a message related to the satellite radio, such as "Linking", "Updating", "Acquiring Signal", "Loading", "No Signal", or "No Sat".
A911639204201332017-03-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS TECHNICAL SERVICE BULLETIN EXPLAINS HOW TO DIAGNOSE AND RESOLVE ISSUES WITH AUDI CONNECT ONLINE DESTINATION SEARCH, GOOGLE EARTH NAVIGATION VIEW, AND INRIX ONLINE TRAFFIC.
A171672203811962017-03-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. THIS TECHNICAL SERVICE BULLETIN INSTRUCTS THE READER TO TEST FOR AND REPLACE A DEFECTIVE OIL LEVEL SENSOR.

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