YearToAvoid

2015 Audi S5 Problems, Recalls & Reliability

Verdict

No verdict

Complaint Index

14/100

#13 most-complained of 15 S5 years

The 2015 Audi S5 has 2 owner complaints and 0 safety recalls on file with NHTSA. Its Complaint Index is 14 out of 100 — #13 highest of 15 S5 model years. The most reported problem area is engine (1 complaints, 50% of the total).

Complaints
2
Recalls
0
Crashes / fires
0 / 0
Injuries / deaths
0 / 0
NHTSA overall rating
Not rated
EPA combined MPG
21
18 city / 26 hwy

Top 2015 Audi S5 problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Engine1 (50%)
  2. Fuel System1 (50%)
  3. Lane Departure1 (50%)
  4. Steering1 (50%)
2015 Audi S5 complaints: complaints filed per month3Feb 2021Sep 2022
4 complaints filed with NHTSA from Feb 2021 to Sep 2022; peak Sep 2022 (3).

2015 Audi S5 recalls

No safety recalls on record for this model year.

2015 Audi S5 fuel economy and fuel cost

City
18 MPG
Highway
26 MPG
Combined
21 MPG
Annual fuel cost (EPA)
$3,800
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2015 compared with other S5 years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’10’11’12’13’14’15’16’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2013Caution6416021
2014Good296021
2015No verdict142021
2016No verdict01021
2018Avoid8626224

All Audi S5 years: best and worst →

Frequently asked questions

Is the 2015 Audi S5 a reliable year?
Judged by NHTSA owner complaints and recalls, the 2015 Audi S5 ranks #13 of 15 among S5 model years (Complaint Index 14/100). It has 2 complaints and 0 recalls on file. This reflects reported safety-related problems, not an overall reliability rating.
What are the most common problems with the 2015 Audi S5?
The most reported problem areas are engine (1 complaints), fuel system (1 complaints), and lane departure (1 complaints). The median mileage at the time of failure in complaints that report it is 100,000 miles.
Does the 2015 Audi S5 have any recalls?
No safety recall campaigns list the 2015 Audi S5 in NHTSA’s recall database at the time of the last data update.
What is the fuel economy of the 2015 Audi S5?
EPA rates the 2015 Audi S5 at 21 MPG combined (18 city / 26 highway), with an estimated annual fuel cost of $3,800. Where several configurations exist, the median is shown.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.