2020 Audi A4
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2020 Audi A4 is worth — from official NHTSA and EPA data. 575 on record.
2020 Audi A4 at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2020 Audi A4 recalls 3
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 af…
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.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and dis…
Fix: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall…
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to …
Fix: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2020 Audi A4 common problems
The most-reported problem areas across all 128 owner complaints filed with NHTSA — and what to check before you buy.
2020 Audi A4 safety ratings
Rollover risk: 9.9% — NHTSA's estimated chance of rollover in a single-vehicle crash (dynamic test: ).
Source: NHTSA 5-Star Safety Ratings (NCAP), tested as the 2020 Audi A4 4 DR AWD. Ratings can differ by body style and drivetrain.
2020 Audi A4 MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov.
Estimated 5-year cost to own
A rough guide to what running a 2020 Audi A4 costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Dimensions & weight
Manufacturer-reported figures for the 2020 Audi A4 — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.
Investigations & service bulletins
Manufacturer service bulletins 1073
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 1073.
This bulletin provides information for reporting safety related information to the manufacturer.
Bulletin TSB_2052680_2 · Sep 2026This bulletin provides information when the starter/generator drive belt is noisy or came off.
Bulletin TSB_2083393_1 · Engine · Sep 2026This 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.
Bulletin TSB_2083409_1 · Sep 2026This bulletin provides information about vibrations and rotational steering vibrations.
Bulletin TSB_2074846_5 · Steering · Sep 2026This bulletin provides service information regarding exterior glass cleaning.
Bulletin TSB_2020552_15 · Visibility/wiper · Sep 2026This bulletin provides informaiton when DTC B200FF0 is stored.
Bulletin TSB_2065871_4 · Steering · Sep 2026This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
Bulletin TSB_2068573_6 · Electrical System · Sep 2026This bulletin provides information about billing for a broken sunroof glass panel.
Bulletin TSB_2078648_4 · Structure · Sep 2026This bulletin provides information when the license plate mounting bracket threded inserts are stripped.
Bulletin TSB_2030471_9 · Sep 2026This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones.
Bulletin TSB_2051095_12 · Sep 2026Source: NHTSA Office of Defects Investigation, listed for the A4 FWD. Model-year data, not specific to one car.
Canadian recalls 3
Transport Canada recall campaigns for the 2020 Audi A4. Relevant if the car was first sold in, or imported from, Canada.
Suspension
Issue: On certain vehicles, the rear wheel alignment was not checked during recall 42L1 (Transport Canada Recall 2021-249). As a result, the steering could pull to one side or another and the tires could wear unevenly. If you continue to drive the vehicle in this condition, there may be reduced traction. Eventually, a tire could fail and lose air pressure. Safety Risk: A tire f…
Transport Canada #2022022 · Jan 2022Airbag
Issue: On certain vehicles, the passenger occupant detection system (PODS) may malfunction. This could cause the airbag system to turn off the passenger-front airbag even when a passenger is seated. Note: This problem would cause an error message to display on the instrument panel and a warning chime to sound. The airbag indicator light would also display "passenger airbag off"…
Transport Canada #2021688 · Nov 2021Suspension
Issue: On certain vehicles, the lock nuts for the rear trailing arm bolts may be defective. If a nut breaks, there could be sudden changes in rear wheel alignment. This can cause a loss of vehicle stability. Safety Risk: Reduced vehicle stability could cause a loss of control and increase the risk of a crash. Corrective Actions: Audi will notify owners by mail and instruct you…
Transport Canada #2021249 · Apr 2021Source: Transport Canada Motor Vehicle Safety Recalls Database.
About the Audi A4
The Audi A4 is a line of luxury compact executive cars produced from 1994 to 2025 by the German car manufacturer Audi, a subsidiary of the Volkswagen Group. The A4 has been built in five generations and is based on the Volkswagen Group B platform. The first generation A4 succeeded the Audi 80. The automaker's internal numbering treats the A4 as a continuation of the Audi 80 lineage, with the initial A4 designated as the B5-series, followed by the B6, B7, B8, and the B9.
From Wikipedia, licensed CC BY-SA 4.0. Describes the model line in general, not this model year specifically.
2020 Audi A4 vehicles on record
2020 Audi A4WAUZZZF41MA020508
2020 Audi A4WAUEAAF41MA030074
2020 Audi A4WAUENAF45LN010437
2020 Audi A4WAUHMAF41LA047170
2020 Audi A4WAUEAAF41MA013470
2020 Audi A4WAUEAAF45MN007891
2020 Audi A4WAUZZZF48MA025043
2020 Audi A4WAUFNAF4XLA049827
2020 Audi A4WAUDAAF47MN005894
2020 Audi A4WAUDNAF45LA046714
2020 Audi A4WAUHMAF42LA057349
2020 Audi A4WAUGMAF40LN010759
2020 Audi A4WAUGMAF46LA060573
2020 Audi A4WAUENAF49LN011848
2020 Audi A4WAUFNAF41LN014165
2020 Audi A4WAUZZZF42LA063365
2020 Audi A4WAUZZZF42MA011610
2020 Audi A4WAUENAF44LN011613
2020 Audi A4WAUDNAF45LA047216
2020 Audi A4WAUDAAF4XMA042607
2020 Audi A4WAUENAF4XLA052240
2020 Audi A4WAUEAAF48MA029553
2020 Audi A4WAUEAAF41MN006978
2020 Audi A4WAUABAF43MN008551