NHTSA vehicle safety data

2019 Audi S4 Recalls, Ratings & Complaints

The 2019 Audi S4 has 1 NHTSA recall campaign and 2 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Audi dealer.

NHTSA recall and complaint data for the 2019 Audi S4, plus NCAP crash-test ratings. Recall data is refreshed daily from NHTSA.

2019 Audi S4 owner complaints

Owners have filed 2 complaints with NHTSA about the 2019 Audi S4, describing incidents dated April 1, 2021 to November 29, 2024.

Most-cited components

Engine 1 complaint
Lane Departure 1 complaint
Service Brakes 1 complaint

Newest complaints

ODI #11646713 · Filed March 6, 2025
I don't know because dealer will not allow me to inspect engine or send me a response to what caused failure. Seems by the sounds coming from the top end of the motor most likely cause is that rocker arm (or possibly a valve train)component failed, noise coming from top end. Of course the failure…
ODI #11415106 · Filed May 4, 2021
TL* THE CONTACT OWNS A 2019 AUDI S4. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE BRAKES LOCKED UP. THE ABS WARNING LIGHT WAS ILLUMINATED. THE AUDI PRE-SENSE MESSAGE WAS ALSO DISPLAYED. THE VEHICLE WAS TAKEN TO FLETCHER JONES AUDI (1523 W. NORTH AVE, CHICAGO, IL 60642, (312)…

Read all 2 complaints

Disabled Passenger Air Bag

NHTSA #21V874000 · Seats · NHTSA notice

Reported November 10, 2021 · Volkswagen Group of America, Inc.

Potentially affected: 208,332 vehicles

Repair completion: 83.85% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign 74E3 · Owners notified January 7, 2022

Defect description

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.

Safety consequence

A disabled passenger air bag increases the risk of injury in the event of a crash.

Manufacturer remedy

Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were 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.

Notes

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.

2019 Audi S4 4 DR AWD

—

out of 5

Overall Safety Rating

Not Rated

Frontal Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Pole

Not Rated

Rollover

10% rollover risk

Safety Technology

Electronic Stability Control Forward Collision Warning Lane Departure Warning (Optional)

2 owner complaints have been filed with NHTSA for the 2019 Audi S4.

Engine

ODI #11646713

Incident: November 29, 2024 · Filed: March 6, 2025

I don't know because dealer will not allow me to inspect engine or send me a response to what caused failure. Seems by the sounds coming from the top end of the motor most likely cause is that rocker arm (or possibly a valve train)component failed, noise coming from top end. Of course the failure was just after the 50k warranty by about 17 k miles. So roughly 66-67 k miles. The original estimate was a new long block at approx. 31k cost to me. Eventually after complaining significantly it was settled at 14k plus tax.

Service Brakes; Lane Departure

ODI #11415106

Incident: April 1, 2021 · Filed: May 4, 2021

TL* THE CONTACT OWNS A 2019 AUDI S4. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 60 MPH, THE BRAKES LOCKED UP. THE ABS WARNING LIGHT WAS ILLUMINATED. THE AUDI PRE-SENSE MESSAGE WAS ALSO DISPLAYED. THE VEHICLE WAS TAKEN TO FLETCHER JONES AUDI (1523 W. NORTH AVE, CHICAGO, IL 60642, (312) 628-4300) HOWEVER, THE MECHANIC WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 19,800.

Other Audi S4 model years

Check your 2019 Audi S4 VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Audi S4 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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