The S4 is based on the A4 platform. This high-performance AWD sedan is powered by a 349-hp, 3.0-liter turbo V6 mated to an eight-speed automatic, the same powertrain that is on the S5. Advanced safety and infotainment systems are all up to date. The S4 has been very impressive on a track, particularly in sport mode. It employs a system that splits torque from the front to rear and side to side to improve handling.
Alerts
There are 2 recalls on this vehicle. Learn More.

Reliability

We expect the 2022 S4 to have about average reliability when compared to other new cars. This prediction is based on data from similar models such as the A5/S5 from the Audi brand.

Overall Reliability
The 2020 Audi S4 has been recalled 2 times by NHTSA. View Recalls

No Detailed Data Available

Consumer Reports obtains its reliability data from a questionnaire that is sent to subscribers. In the questionnaire, we ask subscribers to note any problems with their cars that occurred in the past 12 months. They are asked to identify problems that they considered serious (because of cost, failure, safety, or downtime).

A typical model has about 200 to 400 samples for each model year. For some model years, typically those of older or less popular cars, we do not have a large enough sample size to provide results of statistical confidence.

There are several ways in which a savvy car buyer can still research the quality of a car.

Learn more about Car Brands Reliability
Learn How To Avoid A Lemon Car

Recalls
PROVIDED BY
AIR BAGS, SEATS
Nov 10, 2021
A disabled passenger air bag increases the risk of injury in the event of a crash.
Summary:
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.
What should you do:
Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters are expected to be 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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
NHTSA CAMPAIGN ID Number: 21V874000
Potential Number of Units Affected: 208332
SUSPENSION
Apr 26, 2021
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
Summary:
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.
What should you do:
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.
For more information:
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
NHTSA CAMPAIGN ID Number: 21V295000
Potential Number of Units Affected: 40993
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