repaired · 2023 Q4
Axle: non-powered axle assembly
Risk. Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
2020 Audi S4Problems, recalls & complaints
NHTSA has logged 17 owner complaints about the 2020 Audi S4, most often about the electrical system. It is covered by 3 safety recalls, and for recall 21V-874 the manufacturer reports only 77% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through October 21, 2026. Updated daily. Photo: Calreyn88, CC BY-SA 4.0.
Complaints by system
Where the 2020 Audi S4 has problems
17 complaints grouped by the system owners reported.
15Electrical system
9Back over prevention
1Forward collision avoidance
1Lane departure
1Visibility/wiper
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Electrical system | 15 | 0 |
| Back over prevention | 9 | 0 |
| Forward collision avoidance | 1 | 0 |
| Lane departure | 1 | 0 |
| Visibility/wiper | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
3 recalls
2020 Audi S4 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2023 Q4
Occupant classification: front passenger
Risk. A disabled passenger air bag increases the risk of injury in the event of a crash.
repaired · 2023 Q1
Axle: non-powered axle assembly
Risk. A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.
Best & worst years
2020 vs. every other S4 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the S4 median. How we score
'89'90'91'92'93'94'95'96'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'18'19'20'21'22
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2020 Audi S4 safety ratings
2020 Audi S4 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
- Rollover: 5 stars (9.9% risk)
- Stability control: Standard
- Forward collision warning: Standard
- Lane departure warning: Optional
In owners' words
What S4 owners report
Recent electrical system complaints filed with NHTSA, shortened. Personal details are removed.
My instrument cluster and its replacements have malfunctioned multiple times. The original instrument cluster/virtual cockpit failed to boot and had a black/blank screen on 4/19/2024 at 29,687 miles and was replaced on 5/15/2024 at 29,923 mi (11/13/23 production). That replacement one worked fine…
My instrument cluster and its replacements have malfunctioned multiple times. The original instrument cluster/virtual cockpit failed to boot and had a black/blank screen on 4/19/2024 at 29,687 miles and was replaced on 5/15/2024 at 29,923 mi. That replacement one worked fine for a while and then…
The Audi MMI malfunctions and reboots randomly while driving. Possibly being a software issue. There is a TSB code that the dealer used to reference for me ( TSB 2078437/1), but I cannot find it on the NHTSA website. The reboot issue shuts off all functions associated with it, including, but not…
Own a 2020 S4?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.