YearToAvoid

2015 Audi S3 Problems, Recalls & Reliability

Verdict

Avoid

Complaint Index

100/100

#1 most-complained of 10 S3 years

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

The 2015 Audi S3 ranks worst of 10 model years tracked, with a complaint index of 100, 53 complaints, and 2 recalls. Airbags account for 55% of complaints, mostly passenger occupant detection failures, with median failure mileage of 52,000.

Complaints
53
Recalls
2
Crashes / fires
1 / 0
Injuries / deaths
2 / 0
NHTSA overall rating
5 / 5 ★
EPA combined MPG
26
23 city / 31 hwy

Top 2015 Audi S3 problems

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

  1. Airbags29 (55%)
  2. Electrical System9 (17%)
  3. Fuel System7 (13%)
  4. Transmission & Powertrain6 (11%)
  5. Seat Belts5 (9%)
  6. Structure & Body5 (9%)
  7. Engine4 (8%)
  8. Suspension, Wheels & Tires3 (6%)
  9. Brakes2 (4%)
  10. Other1 (2%)

What owners report

  • Passenger seat airbag warning light activates on its own, showing "passenger airbag off" even when someone is seated.
  • Passenger occupancy sensor fails to detect a passenger, sometimes triggering seat belt warning chimes constantly.
  • Transmission suddenly feels like it drops into neutral on the highway, with dash lights coming on and only first gear available.
  • Water pump leaks through the weep hole and fails around the time factory warranty ends.
  • Sunroof glass shatters while driving without any collision involved.
  • Haldex pump in the all-wheel-drive system loses front-right wheel grip slowly over time before failing.
2015 Audi S3 complaints: complaints filed per month4May 2017Jun 2019Feb 2020Sep 2020Apr 2021Oct 2021Oct 2022Jul 2024
72 complaints filed with NHTSA from May 2017 to Jul 2026; peak Sep 2019 (4).

2015 Audi S3 recalls

2 NHTSA recall campaigns list this model year.

  1. NHTSA 21V198000Mar 22, 2021Airbags153,152 vehicles

    Air bags:sensor:occupant classification:front passenger

    Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2020 Audi S3 Sedan, A3 Sedan, 2016-2018 A3 Etron, 2017-2020 RS3 Sedan, and 2015-2019 A3 Cabriolet vehicles. The passenger occupant detection system (PODS) may malfunction and switch off the passenger air bag even when the seat is occupied.

    Risk: A deactivated passenger air bag increases the risk of injury during a crash.

    Remedy: Dealers will replace the PODS sensor mat and update the PODS control module, free of charge. Owners letters were mailed December 23, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BY.

  2. NHTSA 19V474000Jun 19, 2019Airbags138,896 vehicles

    Air bags:sensor:occupant classification

    Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2016 Audi S3 Sedan, 2015-2019 A3 Sedan and A3 Cabriolet, 2016-2018 A3 e-tron, and 2017-2019 RS3 vehicles. An improper electrical contact may cause the Passenger Occupant Detection System (PODS) to falsely detect a malfunction and deactivate the passenger air bag.

    Risk: A deactivated passenger air bag increases the risk of injury during a crash.

    Remedy: Audi will notify owners, and dealers will replace the connector and reroute the cable, free of charge. The recall began September 12, 2019. Owners may contact Volkswagen customer service at 1-800-253-2834. Audi's number for this recall is 69Z4.

2015 Audi S3 fuel economy and fuel cost

City
23 MPG
Highway
31 MPG
Combined
26 MPG
Annual fuel cost (EPA)
$3,050
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 S3 years

Complaint Index by model year (0 = fewest issues, 100 = most)02550751002015201620172018201920202021202220232024
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2015Avoid10053226
2016Avoid8914326
2017Avoid789224

All Audi S3 years: best and worst →

Frequently asked questions

Is the 2015 Audi S3 reliable?
Based on NHTSA owner complaints and recalls, the 2015 S3 has the highest complaint index (100) of any S3 model year and ranks worst overall, earning an Avoid verdict relative to other S3 years.
What is the biggest problem with the 2015 Audi S3?
Airbags are the top complaint area, making up 55% of the 53 complaints filed, mostly involving the passenger occupant detection system.
Does the 2015 Audi S3 have a recall?
Yes, NHTSA lists two recalls for the 2015 Audi S3, both related to airbags: one for a passenger occupant detection system sensor mat and control module, and one for an improper electrical contact in the airbag connector.
At what mileage do 2015 Audi S3 problems typically occur?
Median mileage at failure across reported problems is 52,000 miles, matching the median mileage for the airbag complaints specifically.

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.