Total Complaints
1 filings
AUDI S4 · model year
2015 AUDI S4
1 NHTSA complaints, and 1 recall campaign listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
5 / 5 ★
New Car Assessment Program
The 2015AUDIS4 carries 1 consumer safety complaint in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. For crash performance, NHTSA's New Car Assessment Program gave this cohort an overall 5/5 rating, with 5/5 front crash, 5/5 side crash, and 5/5 rollover scores derived from standardized barrier and dynamic tests.
The most frequently selected component label in reports for the 2015 S4 is engine with 1 filings. Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 1 NHTSA recall campaign listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 9 investigation files overlapping the 2015 S4. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
1
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
- Front Crash 5.0 ★
- Side Crash 5.0 ★
- Rollover 5.0 ★
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
NHTSA NCAP overall: 5/5 - Top NCAP rating
· Front: 5/5
· Side: 5/5
· Rollover: 5/5
Complaints by Component
| Component | Count |
|---|---|
| ENGINE | 1 |
Recalls (1)
14V66700024/10/2014
AIR BAGS
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 con
Recent Complaints
20230113ENGINE
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.
Compare 2015AUDIS4 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2015 AUDI S4 have?▼
The 2015 AUDI S4 has 1 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What is the safety rating for the 2015 AUDI S4?▼
The 2015 AUDI S4 received an overall NHTSA safety rating of 5/5, front crash rating of 5/5, side crash rating of 5/5, and rollover rating of 5/5.
Are there any recalls for the 2015 AUDI S4?▼
Yes, the 2015 AUDI S4 has 1 recall(s). The most common affected component is AIR BAGS. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2015 AUDI S4?▼
The most-complained component for the 2015 AUDI S4 is ENGINE with 1 complaints. Other frequently reported areas include various components.
Is the 2015 AUDI S4 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. The 2015 AUDI S4 has an NHTSA safety rating of 5/5. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2015 AUDI S4; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.