2021 Audi S4
Only 2 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 2 complaints on file — too few for a fair verdict. The data below is complete but unranked.
- Complaints
- 2
- Recalls
- 4
- Investigations
- 0
- Top problem
- —
Too few to rank
Campaigns on file for 2021
None on file
Not enough data
Complaints per year
2021: 2 complaints
View as data table
| Year | Complaints |
|---|---|
| 1989 | 0 |
| 1990 | 0 |
| 1991 | 0 |
| 1992 | 5 |
| 1993 | 16 |
| 1994 | 7 |
| 1995 | 1 |
| 1996 | 0 |
| 2000 | 143 |
| 2001 | 87 |
| 2002 | 22 |
| 2003 | 1 |
| 2004 | 29 |
| 2005 | 43 |
| 2006 | 30 |
| 2007 | 13 |
| 2008 | 4 |
| 2009 | 0 |
| 2010 | 60 |
| 2011 | 26 |
| 2012 | 22 |
| 2013 | 33 |
| 2014 | 17 |
| 2015 | 1 |
| 2018 | 7 |
| 2019 | 2 |
| 2020 | 17 |
| 2021 | 2 |
| 2022 | 1 |
Known problem areas
Only 2 complaints on file for this model year — too few to rank by share. Raw counts only, below.
Electrical system
1 of 2 total reports mentions: electrical system.
Show complaint excerpts
The contact owns a 2021 Audi S4. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. The check engine warning light was illuminated.
NHTSA ODI report, 2025-09-25
Safety timeline
4 recalls · 0 investigations · oldest first
To check one car, enter its VIN on the NHTSA recall page. Check a VIN →
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R
2021-06-04Suspension21V295000 Volkswagen Group of America, Inc.
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.
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2021-08-27Seat belts21V606000 Volkswagen Group of America, Inc.
Remedy: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021.
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2022-03-03Suspension, tires22V034000 Volkswagen Group of America, Inc.
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.
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2022-10-25Back over prevention22V742000 Volkswagen Group of America, Inc.
Remedy: Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 91DZ.
Buy-smart checklist
2021 Audi S4 — pre-purchase inspection
Inspect
- Electrical system: 1 report on file for this year.
Verify these recalls were completed
- Recall 21V295000 · Suspension
- Recall 21V606000 · Seat belts
- Recall 22V034000 · Suspension, tires
- Recall 22V742000 · Back over prevention
Other years of this model
See all years ranked →FAQ
- Is the 2021 Audi S4 reliable?
- There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
- What are the most common problems with the 2021 Audi S4?
- The most-reported component is electrical system, accounting for 50% of complaints on file.
- How many recalls does the 2021 Audi S4 have?
- 4 recalls on file for this model year.
Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.