VehicleVerdict

2015 Audi S4 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just one complaint on file for the 2015 Audi S4 — too few to judge reliability from owner reports alone — but one recall campaign applies to this year, so any used example should have its VIN checked for completed recall work.

In government crash testing it earned 5 of 5 NCAP stars overall.

1

NHTSA complaints

1

Recalls

0

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

5

NCAP overall · of 5 stars

How does 2015 compare to other S4 years?

S4 NHTSA complaints by model year, 2015 highlighted171 complaints1989: 0 complaints1990: 0 complaints1991: 0 complaints1992: 5 complaints1993: 18 complaints1994: 8 complaints1995: 1 complaints1996: 0 complaints2000: 171 complaints2001: 92 complaints2002: 31 complaints2003: 1 complaints2004: 37 complaints2005: 54 complaints2006: 37 complaints2007: 21 complaints2008: 4 complaints2009: 0 complaints2010: 73 complaints2011: 34 complaints2012: 27 complaints2013: 34 complaints2014: 23 complaints2015: 1 complaints2018: 9 complaints2019: 3 complaints2020: 34 complaints2021: 2 complaints2022: 1 complaints
S4 NHTSA complaints by model year, 2015 highlighted. Red bars are years to avoid.

See all S4 years to avoid →

What are the most common 2015 Audi S4 problems?

ComponentComplaintsShare
Engine1100%

Does the 2015 Audi S4 have recalls?

1 NHTSA recall campaign on file. Recall repairs are free at franchised dealers.

14V667000AirbagsOctober 24, 2014 · 101,938 units

Defect

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.

Consequence

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.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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 filed with NHTSA · Engine · January 9, 2023

2015 Audi S4 — common questions

Is the 2015 Audi S4 reliable?

The record is thin — 1 NHTSA complaint — so owner-report data can't strongly confirm reliability either way, though 1 recall should be verified as completed.

Does the 2015 Audi S4 have recalls?

Yes — NHTSA lists 1 recall campaign affecting the 2015 Audi S4. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Which Audi S4 years should you avoid?

Based on complaint rates and open investigations, the S4 years to avoid are 2000, 2001, 2010, 2005, 2004, 2006, 2013, 2020, 2011, 2002. The cleanest record among S4 years belongs to 2009.

How safe is the 2015 Audi S4?

In NHTSA's NCAP crash testing, the 2015 Audi S4 earned an overall rating of 5 out of 5 stars.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.