YearToAvoid

2021 Audi S5 Problems, Recalls & Reliability

Verdict

No verdict

Complaint Index

7/100

#14 most-complained of 15 S5 years

The 2021 Audi S5 has a Complaint Index of 7, ranking 14th worst out of 15 model years, meaning it has one of the fewest reported problems in the lineup. It carries 5 recalls covering suspension, seat belts, wiring, and infotainment software.

Complaints
1
Recalls
5
Crashes / fires
0 / 0
Injuries / deaths
0 / 0
NHTSA overall rating
Not rated
EPA combined MPG
23
20 city / 28 hwy

Top 2021 Audi S5 problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Suspension, Wheels & Tires1 (100%)

What owners report

  • An owner reported receiving a suspension recall notice (Campaign 21V295000) but the replacement lock nut part was not yet available at the dealer.
  • The owner stated the manufacturer exceeded a reasonable amount of time to complete the recall repair.

2021 Audi S5 recalls

5 NHTSA recall campaigns list this model year.

  1. NHTSA 22V742000Oct 5, 2022Collision Avoidance & Cameras170,296 vehicles

    Back over prevention:display function

    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.

    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.

  2. NHTSA 22V034000Jan 26, 2022Suspension, Wheels & Tires31,058 vehicles

    Tires

    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.

  3. NHTSA 21V606000Aug 5, 2021Seat Belts45,496 vehicles

    Seat belts:rear/other:retractor

    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.

    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. 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).

See all 5 recalls for the 2021 Audi S5 →

2021 Audi S5 fuel economy and fuel cost

City
20 MPG
Highway
28 MPG
Combined
23 MPG
Annual fuel cost (EPA)
$3,450
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2021 compared with other S5 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’10’11’12’13’14’15’16’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2019Good436424
2020Avoid7925423
2021No verdict71523
2022No verdict211224
2023No verdict933124

All Audi S5 years: best and worst →

Frequently asked questions

Is the 2021 Audi S5 reliable?
Based on NHTSA owner complaints and recalls, the 2021 Audi S5 has a Complaint Index of 7, the lowest among the 15 model years with data, ranking 14th worst. It has only 1 recorded complaint.
Does the 2021 Audi S5 have any recalls?
Yes, NHTSA lists 5 recalls for the 2021 Audi S5, covering collision avoidance cameras, suspension lock nuts, seat belts, rear light wiring harness, and infotainment software. None are do-not-drive recalls.
What is the top problem area for the 2021 Audi S5?
Suspension, Wheels & Tires is the only reported problem area, accounting for 100% of the single complaint on file.
How does the 2021 S5 compare to other years?
With a Complaint Index of 7, the 2021 S5 ranks far better than years like 2018, 2020, and 2025, which all carry Avoid verdicts with indexes of 86, 79, and 100.
What is the fuel economy of the 2021 Audi S5?
The 2021 Audi S5 gets an EPA-rated 23 mpg combined (20 city / 28 highway), with an estimated annual fuel cost of $3,450.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.