DecodedCars2019 Audi S4
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2019 models.
- Class
- Compact Cars
- Body styles
- 4dr Sedan
- Engines
- 3.0L 6-cyl turbo
- Drivetrain
- All-Wheel Drive
- Fuel
- Premium Gasoline
- MPG (best)
- 24 combined · 21 city / 30 hwy
- Length
- 186.2 in
- Curb weight
- 3,792 lb
- NHTSA rating
- Not rated
- Recalls
- 1 campaign
Pros & cons
What's good
Nothing stands out against similar models in the data.
Watch out for
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data against 37 similar 2019 models — not a review. How we calculate this →
Overview
The 2019 Audi S4 is a compact car offered with a 3.0L 6-cyl turbo engine and all-wheel drive.
It measures about 186 inches long and 71 inches wide on a 111-inch wheelbase, with a curb weight of roughly 3,792 lb.
EPA rates its most efficient version at 24 MPG combined (21 city / 30 highway), 10% worse than the 2019 compact car average of 26.8 MPG, for an estimated $3,400 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
It has 1 recall campaign on file and owners have filed 2 complaints with NHTSA since 2015, most often about the service brakes.
What changed for 2019
No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2018 S4 — a carry-over year in the data.
Compared with 2018; trim, feature and price changes aren't covered. See the 2018 S4 →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| 4dr Sedan | 186.2 in | 71.3 in | 55.1 in | 111 in | 61.8 / 61 in | 3,792 lb | 56/44 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| S4 | 3.0L 6-cyl turbo | Automatic (S8) | All-Wheel Drive | 21 / 30 / 24 | -10% | $3,400 | 371 |
EPA estimates; "vs. class" is combined MPG against the 2019 EPA class average. How we calculate this →
Safety ratings & technology
| Version | Overall | Frontal | Driver / passenger | Side | Side pole | Rollover | Rollover risk |
|---|---|---|---|---|---|---|---|
| 2019 Audi S4 4 DR AWD | Not rated | Not rated | –★ / –★ | Not rated | Not rated | ★★★★★ | 9.9% |
Similar 2019 compact cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2019 Audi S4 (this car) | 24 MPG | Not rated | 1 |
| 2019 BMW 3 Series | 30 MPG | ★★★★★ | 0 |
| 2019 BMW 5 Series | 29 MPG | Not rated | 0 |
| 2019 Mercedes-Benz E-Class | 25 MPG | ★★★★★ | 0 |
| 2019 Lexus IS | 24 MPG | Not rated | 2 |
| 2019 Audi A4 | 30 MPG | Not rated | 1 |
| 2019 Mercedes-Benz C-Class | 27 MPG | Not rated | 0 |
Recalls (1)
Air Bags › Sensor › Occupant Classification › Front Passenger · Nov 10, 2021
NHTSA campaign 21V874000 · 208,332 vehicles
- Problem
- 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.
- Risk
- A disabled passenger air bag increases the risk of injury in the event of a crash.
- Fix
- 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.
Not every 2019 Audi S4 is affected — only a VIN check confirms your car.
Owner-reported problems
Unverified owner reports; best-sellers collect more.
Used 2019 Audi S4 buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 1 recall this year — ask for proof of repairs.
- Service Brakes — 1 owner reports. Brake firmly from speed; check for pulling, pulsing pedal or ABS warning light.
- Lane Departure › Blind Spot Detection — 1 owner reports. Make sure driver-assist systems and the backup camera work without error messages.
- Engine — 1 owner reports. Cold-start the engine, listen for knocking, and watch for warning lights or hesitation on acceleration.
- Mileage to watch. Owners typically reported problems around 19,800 miles; ask what was repaired near that point.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2019 Audi S4. Not a substitute for a professional inspection.
Other S4 years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2025 S4 | 24 | 187.8 in | Not rated | 0 | 0 |
| 2024 S4 | 24 | 187.8 in | Not rated | 0 | 0 |
| 2023 S4 | 24 | 187.8 in | Not rated | 0 | 0 |
| 2022 S4 | 24 | 187.8 in | Not rated | 1 | 1 |
| 2021 S4 | 23 | 187.8 in | Not rated | 4 | 2 |
| 2020 S4 | 23 | 187.8 in | Not rated | 3 | 17 |
| 2018 S4 | 24 | 186.2 in | Not rated | 2 | 7 |
| 2016 S4 | 21 | 185 in | ★★★★★ | 0 | 0 |
| 2015 S4 | 21 | 185 in | ★★★★★ | 1 | 1 |
| 2014 S4 | 21 | 185 in | ★★★★★ | 1 | 17 |
| 2013 S4 | 21 | 185 in | ★★★★★ | 1 | 15 |
| 2012 S4 | 21 | 185 in | Not rated | 1 | 21 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Audi. How we calculate this →