NHTSA // CRASH-TESTED
2021 Audi S4
Federal crash-test performance, recalls, and complaints, scored into one NHTSA Safety Index.
The Audi S4 is a performance-oriented compact luxury sedan that slots above the standard A4 in Audi's lineup, targeting enthusiasts who want spirited driving without sacrificing daily usability. Aimed at buyers who prioritize both prestige and performance, the S4 competes in a demanding segment against rivals like the BMW 3 Series and Mercedes-Benz C-Class. Our coverage spans the 2019 through 2025 model years.
The 2021 Audi S4 earns an NHTSA Safety Index of 96 out of 100, an exceptional result driven by its federal crash-test stars and its recall record. Its 5-star rollover rating stands out for families and child-seat buyers. It has 4 recalls on record, reflected in the score.
- families prioritizing rollover safety
- new and teen drivers who want standard crash-avoidance tech
Reviewers generally regard the Audi S4 as one of the more satisfying choices in the compact luxury performance sedan segment, praising its composed ride, strong powertrain, and premium interior execution. Most find it a well-rounded package that balances everyday practicality with genuine driving engagement, though some note the segment is intensely competitive.
NCAP // CRASH TESTCrash-test breakdown
Source: NHTSA NCAP, VehicleId 15587
Index breakdown
NHTSA // RECALLSRecall record
BACK OVER PREVENTION:DISPLAY FUNCTION22V742000
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.
Reported 2022-10-05
TIRES22V034000
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.
Reported 2022-01-26
SEAT BELTS:REAR/OTHER:RETRACTOR21V606000
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).
Reported 2021-08-05
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY21V295000
Risk: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
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.
Reported 2021-04-26
NHTSA // COMPLAINTSOwner complaints
2 owner complaints on file. These are unverified allegations reported to NHTSA.