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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
20AUTIRECHAINS2020-01-08. Service bulletin. EQUIPMENT; TIRES; EQUIPMENT ADAPTIVE/MOBILITY. New document 2004-2020 A4 allroad, A6 allroad, A8L, R8 Spyder
A9219232038151_12019-12-07. Service bulletin. VISIBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct. 2015-2021 A3 Cabriolet, 2016-2018 A3 Sportback, 2018-2021 A5 Sportback, 2012 and 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2021 RS 6 Avant
A4419712022563_12019-12-06. Service bulletin. WHEELS. This bulletin provides information regarding vibrations or movement that are felt in the wheel. 2015-2020 A3 Cabriolet, 2016-2018 A3 Sportback, 2008-2009 S4 Cabriolet, 2008 and 2010 RS4 Cabriolet, 2018-2020 A5 Sportback, 2010-2012 and 2018-2020 RS5 Cabriolet, 2018-2020 S5 Sportback, 2008 A7, 2008-2011 S7
A6919432056406_12019-11-07. Service bulletin. AIR BAGS. This bulletin contains instructions for when the airbag warning is illuminated and DTC B13BCF2 is stored. 2015-2020 A3 Cabriolet, 2016-2018 A3 Sportback, 2018-2020 A5 Sportback, 2018-2020 RS5 Cabriolet, 2018-2020 S5 Sportback
A4019972018194_92019-11-07. Service bulletin. UNKNOWN OR OTHER. This bulletin contains repair instructions for leaking shock absorbers.
A0019272045316_42019-11-07. Service bulletin. UNKNOWN OR OTHER. This bulletin contains information for diagnosing the Start/Stop system.
A0019252011732_12019-10-21. Service bulletin. ELECTRICAL SYSTEM. 00 Software Version Management (SVM), operating instructions
A9119932037087_42019-10-15. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains instructions for enabling text message notifications through the MMI system.
ATUBody20192019-10-07. Service bulletin. EQUIPMENT. Body components - Examples of customer misuse
A0019262052680_22019-10-02. Service bulletin. EQUIPMENT. This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage.
A1719982028440_42019-09-09. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. This informational bulletin explains when the range display is empty in the on-board computer. Also A3 Cabriolet 2015-2021, A3 Sportback 2016-2018, 2005 A4 Cabriolet , 2005-2009 S4 Cabriolet, 2010-2012 and 2018-2021 RS5 Cabriolet, 2018-2021 S5 Sportback, 2021 S6, 2005 and 2006 A7, 2005-2011 and 2021 S7 2005-2006 and 2021 S8, 2019-2021 E-Tron Quattro
Dealer 37M32019-08-07. Service bulletin. POWER TRAIN. Undisclosed Transmission Control Module (TCM) Software 2013 A8, S8, Q7, 2014 TT Coupe, 2015 Q7, S3 Sedan, 2016 A3 Cab, A3 Sedan, S3 Sedan, TT Coupe, 2017 Q7, TT Coupe, 2018 S7, S4 Sedan, S5 Coupe, S5 Sportback, S5 Cabriolet, S6
Circular 37M32019-08-07. Service bulletin. POWER TRAIN. Undisclosed Transmission Control Module (TCM) Software 2013 A8, S8, Q7, 2014 TT Coupe, 2015 Q7, S3 Sedan, 2016 A3 Cab, A3 Sedan, S3 Sedan, TT Coupe, 2017 Q7, TT Coupe, 2018 S7, S4 Sedan, S5 Coupe, S5 Sportback, S5 Cabriolet, S6
A6019322055443_12019-08-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin contains instructions for claiming Panoramic sunroofs. 2017-2022 A3, A3 Cabriolet, S3, A4, S4, A4 allroad, A5, A5 Cabriolet, S5, S5 Cabriolet, A5 Sportback, S5 Sportback, RS5, A6, S6, RS6, Q3, Q5, SQ5, Q7, and Audi e-tron quattro, 2017-2018 A3 e-tron, A7, A8, S7, S8, and RS8. 2019-2022 Q8
A4819782053869_22019-06-06. Service bulletin. STEERING. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800. This document applies to every 2016-2019 Audi Model.
A0119162054893_12019-06-05. Service bulletin. ENGINE. This bulletin contains instructions for documenting the "Please reduce Oil Level" message in the instrument cluster potentially with an Engine Warmup request. This bulletin also applies to the S5 Sportback.
A151933 2053278-2019-04-15. Service bulletin. ENGINE; EQUIPMENT. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody.
2018 Audi 2019012019-04-08. Service bulletin. ENGINE; EQUIPMENT. Oil Capacity Table: Changed Oil Specs for all models
Audi MY 2018 2012019-04-08. Service bulletin. TIRES. ADDED to footnote (b at the end of the chart: "If vehicle has a top speed of 174 mph, it has the Dynamic Plus Package which can be identified by PR Code PAB" - A3 2.0L, S3 2.0L, RS 3 2.5L, A3 Cabriolet 2.0L, A3 e-tron Sportback 1.4L, A4 2.0L (190 hp), A4 2.0L (252 hp), S4 3.0L, A4 allroad 2.0L, A5 Cabriolet 2.0L, S5 Cabriolet 3.0L, A5 Coupe 2.0L, S5 Coupe 3.0L, A5 Sportback 2.0L, S5 Sportback 3.0L, RS 5 2.9L, A6 2.0L, A6 3.0L, S6 4.0L, A7 3.0L, S7 4.0L, RS7 4.0L (560 hp), RS7 4.0L (performance 605 hp), A8 3.0L, A8L 3.0L, A8 4.0L, A8L 4.0L, S8 4.0L, S8 Plus 4.0L, Q3 2.0L, Q5 2.0L, SQ5 3.0L, Q7 2.0L, Q7 3.0L, SQ7 4.0L, R8 Coupe 5.2L, R8 Spyder 5.2L (540hp), R8 Spyder 5.2L (610hp), TT 2.0L, TTS 2.0L, TTRS 2.5L.
A461903 20341812019-04-08. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
A441969 20225632019-04-08. Service bulletin. STEERING. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A001915 20478122019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains instructions for setting up and using the SD creator program.
A481977 2053869-2019-04-01. Service bulletin. STEERING; EQUIPMENT. This bulletin contains repair instructions for when DTC B145504 with symptom code 7340800.
A151933 2053278-2019-04-01. Service bulletin. ENGINE. This bulletin contains repair instructions for 3.0 and 2.9 TFSI engines that have oil loss around the engine compartment, front end, and underbody.
2018 Audi 2019012019-04-01. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. Oil Capacity Table: Changed Oil Specs for all models

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