2021 Audi A4 Allroad problems, complaints & recalls
Most-reported problem areas: Power Train (1) · Forward Collision Avoidance: Automatic Emergency Braking (1)
🧭 Reliability snapshot
Compared against other Audi A4 Allroad model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (1)
Tires 2022-01-26 · campaign 22V034000 · 31,058 vehicles
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Risk: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
Fix: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.
Service bulletins (785)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-25 · TSB_2083409_1 · Service Bulletin/Repair Instructions
this bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
Unknown Or Other 2026-09-25 · TSB_2052680_2 · Service Bulletin/Repair Instructions
this bulletin provides information for reporting safety related information to the manufacturer.
Steering 2026-09-22 · TSB_2074846_5 · Service Bulletin/Repair Instructions
this bulletin provides information about vibrations and rotational steering vibrations.
Steering 2026-09-22 · TSB_2065871_4 · Service Bulletin/Repair Instructions
this bulletin provides informaiton when dtc b200ff0 is stored.
Visibility/Wiper 2026-09-22 · TSB_2020552_15 · Service Bulletin/Repair Instructions
this bulletin provides service information regarding exterior glass cleaning.
Structure:body 2026-09-18 · TSB_2078648_4 · Service Bulletin/Repair Instructions
this bulletin provides information about billing for a broken sunroof glass panel.
Showing the 6 most recent of 785 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-20 · Power Train“a few minutes into the drive the transmission oil is too hot warning light came on and the car went into a 'limp' mode, car could only be driven less than 10mph. if this occurred while making a turn or in the highway it could have been disastrous or even fatal. we took it to the dealer and by then the engine light was on without the transmission o…”
2024-08-12 · Forward Collision Avoidance: Automatic Emergency Braking“on several occasions while vehicle was stationary at a stoplight or moving very slowly the emergency braking system deployed, with seat belt tensioner activated and brakes applied with characteristic thunk sound. i could discern no threat at the time, but other cars were nearby. recently, though, while in the middle of a left turn across three la…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.