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 can behind us. There were no moving vehicles, pedestrians, impacts, or other apparent events occurring around the vehicle. Without warning, the passenger seatbelt suddenly and forcefully tightened across my wife’s abdomen. We heard a distinct electrical/motor sound as it tightened. The force was significant enough to compress her abdomen and cause immediate pain and distress. My wife is [XXX]. There are currently no visible bruises or marks, but the incident was extremely concerning given the force applied directly across her [XXX]. There was no collision, sudden movement, braking, or other apparent reason for the restraint to activate. The vehicle was parked and had not moved. We are requesting that Audi investigate this as a potential unintended activation or malfunction of the seatbelt tensioner/Pre Sense restraint system. Please inspect the reversible seatbelt tensioner, Pre Sense system, restraint/airbag control module, relevant sensors, and stored diagnostic fault codes. Please also check for applicable recalls, technical service bulletins, known defects, or similar incidents involving unexpected seatbelt tensioner activation on this vehicle, and document this incident as a formal safety complaint. Please provide the diagnostic findings and cause of the activation in writing. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The worst 2020 Audi A4 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical92
- Driver assistance49
- Suspension2
- Brakes1
- Lights1
- Seat belts1
- Seats1
- Visibility1
- Wheels1
Specific symptoms reported on the 2020 Audi A4
Recalls 3
Tires
- What is wrong
- 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.
- Remedy
- 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.
Recall number 22V034000 · Recall details
Air bags: sensor: occupant classification: front passenger
- What is wrong
- 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.
- Remedy
- 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.
Recall number 21V874000 · Recall details
Suspension: rear: axle: non-powered axle assembly
- What is wrong
- 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.
- Remedy
- 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.
Recall number 21V295000 · Recall details
Technical service bulletins for the 2020 Audi A4 1,083
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction...
- This bulletin provides informaiton on the use of the PICO-NVH tool (VAS 611 015).
- This bulletin provides infomration when basic settings are not possible after repair; DTC P17F900 stored...
- This special notice is to inform dealers to return the parts listed and only order the successor parts...
- This bulletin provides information regarding the current top concerns being addressed by the Audi Digital...
- This bulletin proides service information when there is a prompt to take over the steering wheel (hands...
- This bulletin provides information when the starter battery is discharged or malfunctioning.
- This bulletin provides information when there is an Audi pre sense warning, warning jolt, or brake...
- This bulletin provides information to aid in diagnosing the vehicle locking system.
- This bulletin provides information when the engine is not runing smoothly; all gas engines.
2020 Audi A4 crash test ratings
Government 5-star crash tests. Higher is safer. Each row is a body style and drivetrain that was tested.
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| Audi A4 4 DR AWD | 5 | 4 | 5 | 5 |
| Audi A4 4 DR FWD | 5 | 4 | 5 | 5 |
2020 Audi A4 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | FWD | 27 | 35 | 30 |
| 2.0L 4‑cyl | AWD | 23-24 | 31-32 | 26-27 |
What 2020 Audi A4 owners say
Most recent owner complaints, unedited.
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 its total failure physically blocks their diagnostic tools from applying the mandatory safety update. Conditioning a federal safety recall on a customer-paid repair violates recall compliance regulations, and has left my automatic emergency crash reporting and vehicle communication systems completely disabled.
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 communication, including the hands-free features, mobile phone connectivity, and the regular safety features failing to operate as needed. The vehicle was taken to a dealer to be diagnosed, and it was determined that the communication module failure was the same as the SOS module failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 54,000.
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 module needed to be replaced. The vehicle was not repaired. The contact had not experienced a failure prior to the vehicle being taken to the dealer. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 26,000. The VIN was not available.
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 setting. When turning or breaking quickly the seat moves, and it would obviously be a safety issue if I get into an accident. If the seat is adjusted higher it is not supported in that corner and it leans back. Yesterday I dropped it off at the dealer service center and they said it is the seat frame. I have not heard back from them yet. I am the first owner of this car, and it has not been in any serious accidents (I hit a deer once roughly 2 years ago). I am not unusually heavy.
Since I purchase my vehicle I have had to continuously replace my tires on the front. Going through my carfax acct I came across some recalls that showed up that I had no idea of the car may had which was prior to purchase from the dealers. I would think that these issues were fixed prior to reselling. I recently had to pull over on the freeway due to the tire making noises then realized that the tire wear was uneven again but this time shredded apart. I could feel metal poking out which the tires hadn’t been on for long. The loss pressure warning light went off. I later found the missing tire that has came off wrapped around the rotor which the tire shop near me hadn’t seen while replacing with new tires again. The wear on the brake pads were off as well as the rotors which I also ended up having to replace just recently. I’ve made an appointment with a dealer which is out of my way to hopefully have this resolved but needed to make a report of this safety issue.
MMI module keeps resetting. This causes sudden lost of navigation display and sudden lost of backup camera when reset happens while backing up. Release version: MHI3_US_AUG45S_P3243 Software version: 3243
Many times while driving the Audi MMI system which controls all radio/navigation/controls screen will completely shut off and reboot, leaving the screen blank and functionality gone. When researching online many others have reported the same issue, with Audi unable to provide a definitive cause or a fix for the issue. This is a safety issue as it could cause distraction while driving
Audi MMI system randomly goes dark and reboots during driving - this turns off the rear camera and any GPS system being used to navigate along with the sound system, etc.
The entertainment system goes black every 5-10 minutes while driving
Compare the 2020 Audi A4
A4 vs Mercedes-Benz C300A4 vs BMW 328IA4 vs Cadillac CTSA4 vs Lincoln MKZA4 vs Lexus ES350A4 vs Acura TLX
Other model years
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Questions about the 2020 Audi A4
Is the 2020 Audi A4 reliable?
Owners have filed 128 complaints about the 2020 Audi A4, 2.2 times a typical A4 model year. It is one of the years we flag to avoid.
What is the 2020 Audi A4 year score?
The 2020 Audi A4 scores 45 out of 100 (below average). The score compares it with the other model years of the Audi A4: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2020 Audi A4?
Electrical system, with 92 complaints. Next is driver assistance (49).
How many recalls does the 2020 Audi A4 have?
3 recalls, covering tires, air bags and suspension.
Is the 2020 Audi A4 safe in a crash?
In government crash tests the 2020 Audi A4 scored 5 out of 5 stars overall, depending on body style and drivetrain (2 versions tested).
What gas mileage does the 2020 Audi A4 get?
Official estimates for the 2020 Audi A4 range from 26 to 30 mpg combined. The most efficient version (2.0L 4-cyl, FWD) gets 27 city and 35 highway.
VIN decoder
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