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Service bulletins for the 2018 Audi A4 allroad

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
A911933 2051664-2019-04-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604.
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.
A911926 20535302019-04-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for when the programmable steering wheel button sporadically loses function.
A911925 20535372019-04-08. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains a software update for when the sound settings are lost after a sleep cycle.
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.
A301923 20535972019-04-08. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.
A001915 20478122019-04-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin contains instructions for setting up and using the SD creator program.
SM 06-20192019-04-01. Service bulletin. EQUIPMENT. The part number listed in the document is to be returned if it meets the criteria specified.
ATE-19-042019-04-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. VAS5578 special tool auto-shipment communication.
A961930 2052250-2019-04-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STRUCTURE; EQUIPMENT. This bulletin contains instructions for correctly programming a door opener (produced by the Chamberlain Group) to the HomeLink.
A911938 2051051-2019-04-01. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT:ELECTRICAL. This bulletin contains repair instructions for poor sound reproduction with part number 8W0035415.
A911933 2051664-2019-04-01. Service bulletin. ELECTRICAL SYSTEM. This bulletin contains repair instructions for when there is an emergency call function message in the instrument cluster with DTC B191604.
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
Audi MY 2018 2012019-04-01. Service bulletin. TIRES; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. 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.
A921916 20381512019-04-01. Service bulletin. EQUIPMENT; VISIBILITY:REAR WINDOW WIPER/WASHER. This bulletin provides instructions for repairing a vehicle with a washer solvent light on but the level is correct.
A911929 20535982019-04-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin contains instructions for MIB2 Standard on how to update the MMI.
A911926 20535302019-04-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin contains a software update for when the programmable steering wheel button sporadically loses function.
A911925 20535372019-04-01. Service bulletin. EQUIPMENT. This bulletin contains a software update for when the sound settings are lost after a sleep cycle.
A461903 20341812019-04-01. Service bulletin. SERVICE BRAKES. This technical service bulletin provides troubleshooting for brake noise.
A441969 20225632019-04-01. Service bulletin. SUSPENSION. This bulletin provides information regarding vibrations or movement that are felt in the wheel.
A301923 20535972019-04-01. Service bulletin. POWER TRAIN. This bulletin contains repair instructions for when there is a leak from the lower bellhousing.

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