2020 Audi A4 Problems, Complaints & Recalls

Source: NHTSA · Updated Oct 5, 2026 · 128 owner complaints analyzed

Compared with other A4 years
Far more complaints than other years 11th of 31 for complaints
NHTSA crash rating
5 out of 5 stars

Owners have filed 128 complaints with NHTSA about the 2020 Audi A4. That ranks 11th out of 31 A4 model years for complaints. The most reported problem area is electrical system (91 complaints, 71%), typically at around 54,000 miles. Complaints mention 1 crash. There are 3 safety recalls covering this model year.

Audi A4
Audi A4 B9 in Stuttgart-Vaihingen. Representative photo; appearance varies by model year. Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2020 Audi A4 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System91 · ~54,000 mi
Unknown or Other58
Back Over Prevention43
Forward Collision Avoidance9
Lane Departure6
Communication2 · ~40,000 mi
Suspension2 · ~12,000 mi
Exterior Lighting1
Seat Belts1
Seats1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System problems9171%54,000“backup camera” (37%)—
Unknown or Other5845%———
Back Over Prevention4334%———
Forward Collision Avoidance97%———
Lane Departure65%———
Communication22%40,000——
Suspension22%12,000——
Exterior Lighting11%———
Seat Belts11%———
Seats11%———
Service Brakes11%———
Visibility/wiper11%———
Wheels11%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2025, with 119 complaints
2022: 2202222023: 1202312025: 11920251192026: 620266

n = 128 complaints · Source: NHTSA

2020 Audi A4 recalls (3)

Tap a recall to see the problem, the risk and the fix.

Tires; suspension:rear:axle:non-powered axle assemblyJan 26, 2022 · NHTSA campaign 22V034000 · 31,058 vehicles

Problem: 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.

Air bags:sensor:occupant classification:front passenger; seatsNov 10, 2021 · NHTSA campaign 21V874000 · 208,332 vehicles

Problem: 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 disable the passenger air bag.

Risk: A disabled passenger air bag increases the risk of injury in the event of a crash.

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 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.

Suspension:rear:axle:non-powered axle assemblyApr 26, 2021 · NHTSA campaign 21V295000 · 40,993 vehicles

Problem: 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 stress corrosion.

Risk: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.

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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Date: [XXX] Time: Approximately [XXX] Location: Street in front of [XXX]. At approximately [XXX], my wife was seated and properly belted in the front passenger seat of our 2020 Audi A4. The vehicle was completely stationary and parked on the street, between a parked car in front of us and a garbage…

Seat Belts · received Oct 5, 2026 · NHTSA complaint 11769176

My 2020 Audi A4 has an open safety recall campaign. Audi Corporate and my local dealership are formally refusing to perform the recall remedy unless I pay over $2,000 out-of-pocket to replace a broken J949 SOS Telematics Module. The manufacturer claims the module is separate from the recall, but…

Electrical System · received Aug 12, 2026 · NHTSA complaint 11756511

The contact owns a 2020 Audi A4. The contact stated that while driving at an undisclosed speed, the message SOS module no longer connected was displayed on the instrument panel, and the vehicle failed to shut off. The contact believed that the failure was a safety issue due to the loss of…

Electrical System · received Aug 11, 2026 · NHTSA complaint 11756226

The contact owns a 2020 Audi A4. The contact stated that the emergency-call/communication system was inoperable. The vehicle was taken to the local dealer to be repaired under TSB: 91-20-29; however, the software update was unsuccessful due to the module. The dealer informed the contact that the…

Communication · received Aug 10, 2026 · NHTSA complaint 11755871

A metal bracket on the back left side of the driver seat snapped suddenly while driving straight and at a constant speed. Since this part is broken the seat is no longer connected to the track in that corner. The car is drivable for me because I am tall and sit with the seat at its lowest height…

Seats · received Apr 24, 2026 · NHTSA complaint 11733679

Other Audi A4 years

← 2019 A4 · 2021 A4 →

See all Audi A4 problems by year, every Audi model, or the Audi VIN decoder.

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Frequently asked questions

What are the most common problems with the 2020 Audi A4?

Owners most often report electrical system, unknown or other, back over prevention problems. The top one, electrical system, accounts for 91 complaints.

Was there a recall on the 2020 Audi A4?

Yes, 3 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2020 Audi A4 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other A4 model years, the 2020 has far more complaints than most years, and NHTSA rates it 5 out of 5 stars overall in crash tests. Always get a pre-purchase inspection and check the VIN for open recalls.