2021 Audi S4 Problems, Complaints & Recalls
- Compared with other S4 years
- Not enough data 16th of 23 for complaints
- Safety recalls
- 4 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 2 complaints with NHTSA about the 2021 Audi S4. That ranks 16th out of 23 S4 model years for complaints. The most reported problem area is electrical system (1 complaints, 50%), typically at around 31,000 miles. There are 4 safety recalls covering this model year.
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- 2owner complaints
- 4safety recalls
- 0NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Audi S4 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Electrical System | 1 | 50% | 31,000 | — | — |
| Unknown or Other | 1 | 50% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Audi S4 recalls (4)
Tap a recall to see the problem, the risk and the fix.
Back over prevention:display function
Problem: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Risk: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
Fix: 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.
Tires; suspension:rear:axle:non-powered axle assembly
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.
Seat belts:rear/other:retractor
Problem: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk: An unsecured child restraint system can increase the risk of injury during a crash.
Fix: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).
Suspension:rear:axle:non-powered axle assembly
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.
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. The message "Drive System Malfunction - Please Contact Service" was displayed. In addition, the vehicle…
2021 audi s4. Consumer writes in regard to nhtsa safety recall 22v-742. The consumer is disgusted and disatisfied with the audi service department procedures for performing the recalls.
Other Audi S4 years
| Year | Complaints | Recalls |
|---|---|---|
| 2022 S4 | 1 | 1 |
| 2021 | 2 | 4 |
| 2020 S4 | 16 | 3 |
| 2019 S4 | 2 | 1 |
| 2018 S4 | 7 | 2 |
| 2015 S4 | 1 | 1 |
| 2014 S4 | 17 | 1 |
| 2013 S4 | 33 | 1 |
| 2012 S4 | 22 | 1 |
| 2011 S4 | 26 | 1 |
| 2010 S4 | 60 | 0 |
| 2009 S4 | 0 | 2 |
| 2008 S4 | 4 | 2 |
| 2007 S4 | 13 | 2 |
| 2006 S4 | 30 | 2 |
| 2005 S4 | 43 | 2 |
| 2004 S4 | 29 | 1 |
| 2003 S4 | 1 | 1 |
| 2002 S4 | 22 | 1 |
| 2001 S4 | 87 | 1 |
| 2000 S4 | 143 | 1 |
| 1996 S4 | 0 | 1 |
| 1995 S4 | 1 | 2 |
See all Audi S4 problems by year, every Audi model, or the Audi VIN decoder.
Similar Audi models
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Frequently asked questions
What are the most common problems with the 2021 Audi S4?
Owners most often report electrical system, unknown or other problems. The top one, electrical system, accounts for 1 complaint.
Was there a recall on the 2021 Audi S4?
Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Audi S4 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other S4 model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.