Verdict
2015 Audi S4: Complaints, Recalls & Known Issues
What the public record actually says about the 2015 Audi S4 — every figure below is a NHTSA or EPA number, not an opinion.
The read
Fewer reported complaints than most sedan.
Owners filed 1 NHTSA complaints — fewer complaints than 96% of 2015 sedans. Engine leads the reports (100%). 1 safety recall campaign on record — check the VIN and remedy terms with a dealer.
Based on NHTSA complaint volume against 2015 sedans, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
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
Complaint volume vs. segment peers
Fewer complaints than 96% of 2015 sedans
The bar is this car's percentile among 2015 sedans by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
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.
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.
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
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
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 — fewer complaints than 96% of comparable 2015 sedans, so it sits toward the stronger end of its class. That's a signal, not a guarantee about any single car.
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.