2021 Audi A4 TSBs
1,023 manufacturer communications for the 2021 Audi A4 sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2021 A4 problem report covers complaints, recalls, and investigations.
What the bulletins cover
Warranty extensions, campaigns & software updates
Worth checking your VIN against — these can mean free or reimbursed work if your vehicle qualifies.
Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit, camera(s), LIDAR, and/or sensor(s) which enable automatic emergency braking functionality.
Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit, camera(s), LIDAR, and/or sensor(s) which enable automatic emergency braking functionality.
Most recent service bulletins
The 20 most recent of 1,023 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This bulletin provides information when there DTC P218500 is stored in temerature sender G83.
This bulletin provides a deployment overview for customer service packages MLB and MQB for MIB3/connectivity box/OCU3/LSR.
This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
This bulletin provides information when there are noises from the area around the instrument cluster.
This bulletin provides information when the display of the Audi virtual cockpit is distorted due to a broken screen.
This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
This bulletin provides information when there are pixel faults on the virtual cockpit.
This bulletin provides informaiton when the engine is not running smoothly, misfiring.
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.
This bulletin provides informaoitn when the rear parking sensor sometimes does not work, is loose, or there is a rear parking sensor fault message.
This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.
This bulletin provides information when the Emergency call SOS light has a fault, LED red; DTC B200000.
This bulletin provides a deployment overview for customer service packages MLB and MQB for MIB3/connectivity box/OCU3/LSR.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.