2018 Audi A4 Technical Service Bulletins

773 technical service bulletins (TSBs) are on record for the 2018 Audi A4. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11031002Mar 20, 2026Transmission and drivetrain. This bulletin provides information when there are humming noises when cornering; DL-382.
• 11030985Mar 17, 2026Electrical system. This bulletin provides information when the parking assistance gives false warnings.
• 11030987Mar 13, 2026Other or unknown. This bulletin provides information about where to download the Audi frequency app.
• 11031040Mar 4, 2026Electrical system. This bulletin provides informaito when Apple CarPlay/Android Auto does not react to touch inputs.
• 11030984Mar 2, 2026Electrical system. This bulletin provides information when the parking assistance gives false warnings.
• 11030980Mar 2, 2026Air bags. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent warning regarding counterfeit replacement airbag inflators that are being installed in used vehicles.
• 11029368Feb 20, 2026Engine. This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
• 11029367Feb 20, 2026Engine. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
• 11029371Feb 18, 2026Suspension. Thisbulleitn provides informaiotn when there are cracking/craking noises during load changes, or sever vehicle body torsion.
• 11029407Feb 17, 2026Electrical system. This bulletin provides informaiotn when the starter battery is discharged or defective.
• 11029370Feb 17, 2026Electrical system. This TSB provides information when there are noises from the area around the instrument cluster.
• 11029369Feb 12, 2026Other or unknown. This Reporting Obligation requires technicains to contact the Technical Assistance Center (TAC) in cases where the airbag/seatbelt is deployed/not deployed; general accident information; and fire and overheat damage.
• 11029395Feb 4, 2026Electrical system. This bulletin provides information regarding fault finding and repair information for electric tailgate.
• 11028433Jan 22, 2026Transmission and drivetrain. This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
• 11028448Jan 21, 2026Electrical system. This bulletin provides information regarding contact checks for event memories, intermittent.
• 11028439Jan 21, 2026Electrical system. This bulletin provides information regarding fault finding and repair information for electric tailgate.
• 11028401Jan 14, 2026Electrical system. This bulletin provides information for when the 12V socket and/or the cigarette lighter are not working.
• 11028398Jan 14, 2026Engine. This bulletin provides information regarding UV leak additive for finding oil leaks.
• 11028405Jan 13, 2026Steering. This bulletin provides information about vibrations and rotational steering vibrations.
• 11028397Jan 5, 2026Electrical system. This bulletin provides information when the anti-theft alarm activates for no reason, or does not activate.
• 11027441Dec 19, 2025Electrical system. This bulletin provides informaiotn when the starter battery is discharged or defective.
• 11027438Dec 19, 2025Electrical system. This bulletin provides service infrmation for workshop mode with Audi connect vehicles.
• 11027373Dec 16, 2025Other or unknown. This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
• 11027368Dec 11, 2025Electrical system. This bulletin provides information when the Emergency call LED in the roof module is not lit up green.
• 11027358Dec 11, 2025Transmission and drivetrain. This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.
• 11027356Dec 11, 2025Engine. This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
• 11027350Dec 11, 2025Steering. This bulletin provides regarding visual damage for all vehicles.
• 11027321Dec 9, 2025Electrical system. This bulletin provides information when there are speaker rattles, vibrations, or audio interference.
• 11026206Nov 25, 2025Engine. This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
• 11025400Oct 22, 2025Suspension. This bulletin provides information parameter settings for suspension control unit J775.
• 11025369Oct 22, 2025Brakes. This bulletin provides information for all models regarding brake sounds.
• 11025342Oct 21, 2025Brakes. This bulletin provides information regarding the general approach for all Audi vehicles regarding brake vibrations.
• 11025333Oct 21, 2025Brakes. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
• 11025330Oct 21, 2025Brakes. This bulletin provides information when there is corrosion on the friction survace of steel brake discs.
• 11025339Oct 20, 2025Wheels. This bulletin provides information when there is a wheel/tire imbalance.
• 11025405Oct 17, 2025Electrical system. This bulletinprovides information when DTCs B200FF0 to B200FF5 are stpredom the J775 suspension control unit.
• 11025357Oct 17, 2025Other or unknown. This bulletin provides information when tehre is a paint issue on alloy wheels.
• 11025340Oct 17, 2025Steering. This TSB provides information regarding rotational and other steerihng wheel vibrations.
• 11025336Oct 17, 2025Brakes. This bulletin provides information when there is an ABS/ESC speed sensor implausible signal.
• 11025326Oct 17, 2025Wheels. This bulletin provides information about the steering wheel alignment.
• 11025323Oct 17, 2025Body and structure. This bulletin provides informaiton when the license plate mouting bracket threaded inserts are stripped.
• 11025322Oct 17, 2025Body and structure. This bulletin provides guidance for exterior glass cleaning.
• 11025266Oct 14, 2025Body and structure. This bulletin provides information when there is a complaint abou the easy-entry function.
• 11025293Oct 13, 2025Electrical system. This bulletin provides information when the Emergency call LED in the roof module is not lit up green.
• 11025264Oct 7, 2025Other or unknown. This bulletin provides information on how to set up and use the FMC for obtaining vehicle software updates (SD Creator decomissioned).
• 11025245Oct 3, 2025Other or unknown. This bulletin provides information for when there is a fluid sample request from Product Support.
• 11025241Oct 1, 2025Other or unknown. This bulletin addresses complaints about the heated steering wheel, DTC B145504.
• 11023827Sep 29, 2025Other or unknown. This bulletin provides information when there is vibration/clacking/boomingnoises when driving due to foreign objects.
• 11023773Sep 29, 2025Suspension. This TSB provides informaiton pertaining to noises from the guide link bush.
• 11023772Sep 29, 2025Suspension. This bulletin provides information on locating noises coming from the suspension.

← All problems reported for the 2018 Audi A4