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2021 Audi S4 Premium Plus

The 2021 Audi S4 Premium Plus is a 349-hp 3.0-liter turbocharged V6 with an 8-speed tiptronic automatic and all-wheel drive. It starts at $53,500 MSRP and is rated at 23 mpg combined.

It makes 349 horsepower and 369 lb-ft of torque. EPA fuel-economy estimates are 20 mpg city and 28 mpg highway (23 mpg combined).

The S4 measures 187.5 inches long on a 111.0-inch wheelbase and has a curb weight of 3,847 lb.

Spec Value
Vehicle
Body TypeSedan
PowertrainGas
Price
MSRP$53,500
MSRP with Destination$54,545
Destination Charge$1,045
Engine
Engine Type3.0L turbocharged TFSI V6
Displacement3 L
Horsepower349 hp
Torque369 lb-ft
Drivetrain
Drive Typequattro all-wheel drive
Transmission
Transmission8-speed Tiptronic automatic
Fuel Economy
City20 MPG
Highway28 MPG
Combined23 MPG
Recommended FuelPremium Gasoline
Tank Capacity15.3 gal
Tires & Wheels
Wheels Front18-inch
Wheels Rear18-inch
Tires Front245/40R18
Tires Rear245/40R18
Dimensions & Weight
Length187.5 in
Width79.6 in
Height56.2 in
Wheelbase111 in
Cargo Volume12 ft³
Curb Weight3,847 lbs
Interior
Headroom Front37.3 in
Headroom Rear37.4 in
Legroom Front41.3 in
Legroom Rear35.7 in
Shoulder Room Front55.9 in
Shoulder Room Rear54.5 in

Similar cars

Rivals to the 2021 Audi S4 Premium Plus with similar size, power and price from around the same years.

Safety & Recalls

NCAP safety ratings

Overall Not rated
Frontal crash Not rated
Side crash Not rated
Rollover ★★★★★ (9.9 % risk)
Tested variant: 2021 Audi S4 4 DR AWD

Recalls

4 recalls on file with NHTSA for the 2021 Audi S4. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.

Oct 5, 2022 · 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."

Consequence: 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.

NHTSA campaign 22V742000

Jan 26, 2022 · 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.

Consequence: 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.

NHTSA campaign 22V034000

Aug 5, 2021 · 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."

Consequence: 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).

NHTSA campaign 21V606000

Apr 26, 2021 · SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

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.

Consequence: 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.

NHTSA campaign 21V295000

2 owner complaints to NHTSA for the 2021 Audi S4

Owner Complaints

2 owner complaints filed with NHTSA for the 2021 Audi S4. See all on nhtsa.gov

Most-cited areas
Electrical System1
Unknown Or Other1
A complaint can cite more than one area.
Most recent complaints
Sep 25, 2025 · Electrical System
“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…”
Jan 31, 2023 · Unknown Or Other
“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.”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2021 AUDI S4. US-market vehicles only; data cached for up to 7 days.

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