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Service bulletins for the 2016 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.

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

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Bulletins, newest first
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.
A171563 2038129-2017-10-27. Service bulletin. ENGINE. Supersedes Technical Service Bulletin Group 17 number 14-53 dated November 7, 2014. A check with the engine oil service dipstick T40178 is necessary, but the adjustment values for the dipstick are not available in the Elsa repair manual. Because of a system change, the adjustment values for the service dipstick T40178 were removed from the repair manual.
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.
A011507 2028344-2017-10-25. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 01 number 13-69 dated February 14, 2013. Noises and inconsistent engine operation after cold start during the catalyst heating phase. The customer may misinterpret these symptoms as engine misfiring. This bulletin applies only to non-diesel engines.
Tire Chain Info2017-10-25. Service bulletin. TIRES:TEMPORARY/EMERGENCY SPARE TIRE. This document contains Audi tire chain information by vehicle. Snow chains must not be used on the compact spare wheel. Provided the subject tires can accommodate snow chains, such chains can be used only on the front wheels if the vehicle is equipped with front wheel drive. Provided the subject tires can accommodate snow chains, such chains can be used on the front and rear wheels if the vehicle is equipped with Quattro. Ultra-high performance tires are not suited for use on ice or snow. Part numbers are for reference only.
Normal Load Cond2017-10-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; TIRES. This document contains the normal load condition tire pressure table. This document is in Spanish.
Normal Load Cond2017-10-21. Service bulletin. TIRES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This document contains the normal load condition tire pressure table.
A971548 2013504-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 97 number 10-15 dated October 20, 2010. Sporadic fault memory entries are stored in various control modules. Contacts may be widened (over 0.63 mm) if incorrect pins or incorrect methods for current flow tests are used. Either action may cause intermittent electrical connections, which can cause sporadic DTCs to be stored in various control modules.
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.
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.
A941565 2012749-2017-10-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. Supersedes Technical Service Bulletin Group 94 number 12-92 dated October 24, 2012. Condensation is visible on the inside of the headlight, taillight, fog light, side marker light, front turn signal, daytime running lights, or third brake light lens.
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.
A911579 2038824-2017-10-21. Service bulletin. ELECTRICAL SYSTEM. Supersedes Technical Service Bulletin Group 91 number 14-69 dated November 4, 2014. The following message appears on the MMI display: "Device or cable type not supported". The AMI cable being used is a genuine Audi-branded cable with an Audi part number (see Required Parts and Tools for a list of valid part numbers). The "Device or cable type not supported" message may be displayed when an incorrect AMI cable type is connected to the MMI system. Only cables with an Audi part number (i.e., 4F0.XXX.XXX) are supported by the MMI system. Volkswagen-branded cables look similar, but are not guaranteed to work with Audi MMI systems. The label on the end of an Audi-branded cable has an Audi logo and Audi part number. Audi-branded cables have unique firmware inside the hardware that can determine which MMI system and iOS device are connected to the cable. Volkswagen cables do not have this firmware. The firmware is required to allow the system to function normally due to the different technology available in the different MMI systems and in the different iPhones and iPod Touch devices. In addition, the AMI system was designed to play the music stored locally on the connected device only. Music streaming (from Spotify or Pandora, for example) is not supported, and music stored in the cloud (on Google Play, Amazon Prime, or iTunes Match/iCloud, for example) may drop out, pause, and skip when played.
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".
A171557 2010043-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 17 number 13-35 dated January 9, 2013. This bulletin lists engine oils that meet Audi oil quality standards (VW 501 01, 502 00, 505 00, 505 01, and 504 00/507 00).
A101511 2018288-2017-10-21. Service bulletin. ENGINE AND ENGINE COOLING. Supersedes Technical Service Bulletin Group 10 number 13-10 dated September 5, 2013. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If the 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 metal debris pieces are not removed prior to the installation and operation of the replacement engine, they could be drawn into the combustion chamber, which can cause a knocking noise and subsequent serious engine damage.
A011514 2014753-2017-10-21. Service bulletin. FUEL SYSTEM, GASOLINE. Supersedes Technical Service Bulletin Group 01 number 13-09 dated June 21, 2013. The use of contaminated gasoline or gasoline with a low content of deposit control additives may result in excessive accumulation of deposits on intake valves, intake manifold, fuel injectors, and combustion chambers, engine running rough after cold start, excessive engine cranking time, hesitations while driving, rough engine idle, Reduced engine performance, and/or Poor fuel economy. Conditions may be severe enough to illuminate the MIL in conjunction with storage of DTCs for misfire, lean fuel system, or air/fuel ratio imbalance in the engine control module. Condition may be caused by use of contaminated gasoline. Condition may be caused by use of gasoline with a low content of deposit control additives.
Tire Pressure Ta2017-10-21. Service bulletin. TIRES. This document contains the Audi normal load condition tire pressure table.
Tire Pressure Ta2017-10-21. Service bulletin. TIRES. This document contains the Audi normal load condition tire pressure table. This document is in Spanish.
A461599 2034181-2017-10-21. Service bulletin. SERVICE BRAKES, HYDRAULIC. The customer may report hearing brake noise from front or rear brakes. The customer may describe these noises as a squeal, squeak, grinding, groaning, thumping, or creaking. Brake noise can be attributed to many causes. Brake discs or brake pads are close to or below their wear limit. Aftermarket pads or discs have been installed. There is debris (such as small stones, grit, road salt, or sand) between brake disc and brake pad. Discs are covered with rust. Rust can form when the vehicle has not been driven for a long period of time.
2016 Audi Tire C2017-10-21. Service bulletin. WHEELS. 3.0T R18 235/55 R19 104H Winter Wheel and Tire pkg changed to R19 235/55 R19 104H Winter Wheel and Tire pkg
PDI - 2016 ALL M2017-10-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This document contains the Audi vehicle detail report checklist. DO NOT use accessories (radio, etc.) while performing detail, as this can discharge the battery. Refer to TSB 2009967 for Detailer responsibilities, specific use of chemicals, and for part numbers to order materials. Only operate power convertible top with engine running to conserve battery power (A5/S5 Cab, R8 ONLY). DO NOT allow convertible top to remain in a partially opened or partially closed position for longer than 5 minutes. This will cause the top to stop functioning and will require service (A5/S5 Cab, R8 ONLY). DO NOT treat vehicle parts painted with matte finish paint using polishing materials or hard wax. NEVER use protective wax. It can destroy the matte finish effect. Only use a microfiber cloth for cleaning (R8 ONLY).
PDI - 2016 ALL M2017-10-04. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This document contains the Audi vehicle detail report checklist. DO NOT use accessories (radio, etc.) while performing detail, as this can discharge the battery. Refer to TSB 2009967 for Detailer responsibilities, specific use of chemicals, and for part numbers to order materials. Only operate power convertible top with engine running to conserve battery power (A5/S5 Cab, R8 ONLY). DO NOT allow convertible top to remain in a partially opened or partially closed position for longer than 5 minutes. This will cause the top to stop functioning and will require service (A5/S5 Cab, R8 ONLY). DO NOT treat vehicle parts painted with matte finish paint using polishing materials or hard wax. NEVER use protective wax. It can destroy the matte finish effect. Only use a microfiber cloth for cleaning (R8 ONLY). This document is in Spanish.
A191777 2046712-2017-10-04. Service bulletin. ENGINE AND ENGINE COOLING. This informational bulletin contains guidelines for figuring out why coolant marks are present around the coolant expansion tank cap.
A191666 2043142-2017-10-04. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. The MIL is sporadically on. One or more of the following DTCs is stored in the engine control module (ECM, J623 (address word 01). They are DTC P261A00 (Coolant Pump ?B? Control Circuit/Open), DTC P261B00 (Coolant Pump ?B? Control Circuit Range/Performance), and DTC P261C00 (Coolant Pump ?B? Control Circuit Low). The continued coolant circulation pump sporadically fails.

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