2021 Audi A4 Technical Service Bulletins

1,057 technical service bulletins (TSBs) are on record for the 2021 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.

• 11002116May 14, 2024Other or unknown. This bulletin provides information for when there is a fluid sample request from Product Support.
• 11002249May 10, 2024Electrical system. This bulletin provides information when there are scratches or a coating on the cover of the instrument cluster, or if there are particles inside the housing.
• 11002149May 10, 2024Electrical system. This bulletin provides information when there are scratches or a coating on the cover of the instrument cluster, or if there are particles inside the housing.
• 11002223May 9, 2024Body and structure. This bulletin provides information when there are noises from the front end and dash panel while the vehicle is in motion.
• 11002123May 9, 2024Body and structure. This bulletin provides information when there are noises from the front end and dash panel while the vehicle is in motion.
• 11002262May 7, 2024Electrical system. This bulletin provides information when DTC B200096 or B200000 are stored in the telematics control module; ConBox High.
• 11002248May 7, 2024Electrical system. This bulletin provides information when the warning "Instrument cluster: fault. Limited warning messages. Please contact workshop." B200096
• 11002238May 7, 2024Body and structure. This bulletin provides information when there are stains/marks on the sill panel trim.
• 11002208May 7, 2024Other or unknown. This bulletin provides information on the ordering procedures for VIN Plates, and Safety Certification labels.
• 11002162May 7, 2024Electrical system. This bulletin provides information when DTC B200096 or B200000 are stored in the telematics control module; ConBox High.
• 11002148May 7, 2024Electrical system. This bulletin provides information when the warning "Instrument cluster: fault. Limited warning messages. Please contact workshop." B200096
• 11002138May 7, 2024Body and structure. This bulletin provides information when there are stains/marks on the sill panel trim.
• 11002108May 7, 2024Other or unknown. This bulletin provides information on the ordering procedures for VIN Plates, and Safety Certification labels.
• 10254039Apr 22, 2024Other or unknown. This bulletin provides information when there are scratches, or a coating on the cover of the instrument cluster, or particles in the housing.
• 10254035Apr 16, 2024Other or unknown. This bulletin provides general information regarding outside air temperature readings.
• 10254078Apr 12, 2024Exterior lighting. This bulletin provides information when the headlights do not turn off during daylight hours.
• 10253958Apr 12, 2024Other or unknown. This Pending Service Solution (PSS) requests that technicians enter a record into the PSS Database in instances where there is noise from the backrest of the front seat.
• 10254018Apr 11, 2024Other or unknown. This bulletin provides information when there is noise from around the instrument cluster.
• 10253292Apr 8, 2024Other or unknown. This bulletin provides information for when there is noise when steering.
• 10253289Apr 8, 2024Equipment. This bulletin provides information when the Apple CarPlay connection is dropped repeatedly in short intervals.
• 10253287Apr 8, 2024Other or unknown. This bulletin provides information when there is a wrong way driver warning in the MMI with MIB3.
• 10253283Apr 4, 2024Other or unknown. This bulletin provides general troubleshooting for connection complaints related to Apple CarPlay.
• 10253253Apr 4, 2024Other or unknown. This bulletin provides information for when DTC P0A7D00 is stored.
• 10253282Apr 3, 2024Other or unknown. This bulletin provides information when the DTC B200096 or B200000 is stored in the telematics control module; ConBox High.
• 10253279Apr 3, 2024Other or unknown. This Pending Service Solution (PSS) requests that technicians create a PSS Database record in instances where the radio favorites are lost/shortcuts are greyed out in vehicles with MIB3.
• 10253261Apr 3, 2024Other or unknown. This bulletin provides information when the remote control key is inoperative.
• 10253254Apr 3, 2024Transmission and drivetrain. This bulletin provides information when there is binding or vibrations in tight turns in vehicles equipped with quattro Ultra.
• 10252581Mar 29, 2024Equipment, Electrical system. This bulletin provides information on various improvements for MIB 3.
• 10252560Mar 29, 2024Visibility (wipers, defrost, mirrors). This TSB describes a method for leak detection for R134A and R1234yf refrigerant platforms only.
• 10252001Mar 20, 2024Steering. This bulletin provides information on the identification of noises in the dynamic steering.
• 10251968Mar 20, 2024Engine, Engine cooling. This bulletin provides information when there are whistling noises from the turbo charger at 1500 - 2200 RPM, and approximately 70% load.
• 10252019Mar 19, 2024Equipment. This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
• 10252003Mar 13, 2024Visibility (wipers, defrost, mirrors). This bulletin provides information when there are noises from the headliner/sunroof area.
• 10251660Mar 12, 2024Other or unknown, Steering. This bulletin provides information if there is noise when steering the vehicle.
• 10251621Mar 12, 2024Other or unknown, Electrical system. This bulletin provides information when the low coolant light is on but the coolant level is within specifications.
• 10251617Mar 11, 2024Other or unknown, Engine cooling. This bulletin provides information when the MIL is illuminated, P045600 Very Small Leak detected - NVLD.
• 10251666Mar 9, 2024Exterior lighting, Other or unknown. This bulletin provides information when the exterior lights have moisture accumulation.
• 10251657Mar 9, 2024Other or unknown, Exterior lighting. This bulletin provides information on visual concerns with the headlight lens.
• 10251648Mar 8, 2024Brakes, Other or unknown. This bulletin provides information for when the brake pad wear indicator is on in the instrument cluster.
• 10251646Mar 8, 2024Other or unknown, Body and structure. This bulletin provides information from the front end and dash panel are heard when the vehicle is moving.
• 10251619Mar 8, 2024Other or unknown, Electrical system. This bulletin provides information for when the starter/generator drive belt is noise or came off; DTC P2BA300 may be stored in the ECM.
• 10250812Feb 23, 2024Equipment. This Pending Service Solution (PSS) requests that a record be added to the PSS database in instances where the radio favorites are lost, shortcuts are greyed out on lower screen with MIB3 vehicles.
• 10250809Feb 23, 2024Equipment. This Pending Service Solution (PSS) requests that technicians create a record in the PSS database in instances where the star button function assignment is lost on the multifunction steering wheel is lost sporadically.
• 10250807Feb 23, 2024Electrical system. This bulletin provides information on various improvements for MIB 3.
• 10250577Feb 20, 2024Lane departure. This bulletin provides information for when the message "Audi Active Lane Assist/Traffic Jam Assist: malfunction" appears, and DTC U112300 is stored in one of two control modules.
• 10250558Feb 15, 2024Body and structure, Other or unknown. This bulletin provides information when there are noises coming from the trunk lid struts.
• 10250543Feb 15, 2024Transmission and drivetrain. This bulletin provides information when quattro Ultra has vibrations or binding in tight turns.
• 10250336Feb 9, 2024Equipment. This bulletin provides information for when Apple CarPlay pops up or takes over audio without user intervention in vehicles with the Audi Smartphone Interface.
• 10250334Feb 9, 2024Equipment. This bulletin provides information for when Outlook contacts are not accessible via the MMI with Apple devices.
• 10250316Feb 9, 2024Suspension. This bulletin provides information when DTCs B200FF0, B200FF1, B200FF3, or B200FF4, B200FF5 are stored in the J775 suspension control unit.

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