Model-year record
2015 Audi S4
See the complaints, recalls, crash rating, and fuel economy in the public record. Then check the mileage and history of the car you found.
This page shows records, not a buy or avoid call.
The same model year can include a well-kept car and a neglected one. Use these records to plan what to check. Use the specific-car check when you know the mileage.
Complaints filed
1
Reports to NHTSA, 2015
Safety recalls
1
NHTSA campaigns on record
NHTSA crash test
Overall NCAP rating
Combined MPG
20.5
EPA estimate
Known issues
Engine issues account for the largest share of owner complaints (100% of 1 reports).
Share of all 1 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11501592.
Individual complaint reports(1)
Showing the 1 most recent reportsEngineJan 2023 · ODI 11501592Details +Close −
The R&R valve/oil separator unit failed on my 2015 Audi S4 at approximately 71,000 miles. This unit, when fails, can mix the oil and anti-freeze which can seize the engine. I was able to catch the problem before engine failure. Minneapolis Audi repaired the vehicle this week, 1/10/23. There were NO warning indicators except noise. Various media sources have stated that this is a known engine failure concern between 60-90K miles for this engine. Audi does not recognize this as a safety or warranty concern.
- Reported
- Jan 2023
- Incident date
- Jan 2023
- Mileage
- Not provided
- Outcome flags
- None reported
Recalls(1)
Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.
Air Bags · 14V667000Details +Close −
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2015 Audi A4 and S4 vehicles manufactured February 16, 2012, to October 21, 2014, and 2013-2015 Audi Allroad vehicles manufactured March 12, 2012, to October 21, 2014. Due to an improper algorithm in the air bag control module, if a crash necessitates deployment of the side air bags, a second impact to the front of the vehicle may not command the front air bags to also deploy.
Risk: If the front air bags do not deploy in the event of a secondary impact to the front of the vehicle, there is an increased risk of occupant injury.
Remedy: Volkswagen will notify owners, and Audi dealers will update the air bag control unit software, free of charge. The recall began on November 14, 2014. Owners may contact Audi customer service at 1-800-822-2834. Volkswagen's number for this recall is 69K5.
Open full NHTSA recall record →A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
2015 Audi S4 4 DR AWD NHTSA source
- Overall
- Frontal
- Side
- Rollover
Fuel economy by trim
| Trim | Engine | Drivetrain | Transmission | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| S4 | 3.0L 6-cyl | All-Wheel Drive | Automatic (AM-S7) | 18 | 28 | 21 |
| S4 | 3.0L 6-cyl | All-Wheel Drive | Manual 6-spd | 17 | 26 | 20 |
EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.
Before you buy
Useful next checks
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Compare the year-by-year record
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2015 Audi S4: frequently asked
What does the complaint record show for the 2015 Audi S4?
Owners filed 1 NHTSA complaints about the 2015 Audi S4. This is raw owner-reported complaint volume with no production or exposure normalization, so it is not a reliability score or a best/worst-year ranking.
What are the most common problems on the 2015 Audi S4?
The most-reported problem area is Engine (100% of complaints).
How many recalls does the 2015 Audi S4 have?
1 recall has been issued that affect the 2015 Audi S4, covering components such as air bags. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.
What gas mileage does the 2015 Audi S4 get?
The EPA rates the 2015 Audi S4 between 20 and 21 mpg combined, depending on trim and drivetrain.