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2015 Audi S4Problems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2015 Audi S4, most often about the engine. It is covered by 1 safety recall, and for recall 14V-667 the manufacturer reports only 95% of affected cars repaired.

2015 Audi S4
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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls1Lowest repair rate 95%Owner complaints10 with a crash, fire or injuryTop problem1Engine

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through January 13, 2023. Updated daily. Photo: IFCAR, Public domain.

Complaints by system

Where the 2015 Audi S4 has problems

1 complaint grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2015 Audi S4 recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

95%repaired · 2016 Q1

Air bags

Recall 14V-667 · Oct 24, 2014 · 101,938 vehicles · 97,252 repaired

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.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.

Best & worst years

2015 vs. every other S4 year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the S4 median. How we score

'89'90'91'92'93'94'95'96'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'18'19'20'21'22
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2015 Audi S4 safety ratings

2015 Audi S4 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

★★★★★Overall rating
  • Rollover: 5 stars (9.9% risk)
  • Stability control: Standard
  • Forward collision warning: Optional
  • Lane departure warning: No
In owners' words

What S4 owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

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…
Complaint 11501592 · Jan 13, 2023

Own a 2015 S4?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.