Is the 2015 Audi S3 reliable?

The 2015 Audi S3 has 71 complaints filed with NHTSA (7.1x the segment average). Our reliability verdict: avoid. Most common issue: AIR BAGS problems.

What are common problems with the 2015 Audi S3?

Top problems: AIR BAGS (29 complaints, avg repair $500); ELECTRICAL (9 complaints, avg repair $500); SEATS/RESTRAINTS (9 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2015 Audi S3?

Yes, there are 2 recall(s): AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION, AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER. Contact any Audi dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2015 Audi S3?

The 2015 Audi S3 gets 26 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $1846. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2015 Audi S3?

Estimated US average full-coverage insurance for the 2015 Audi S3 is approximately $1,853/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2015 Audi S3

Problems, Recalls & Reliability Report

Avoid This Year

Quick Summary

The 2015 Audi S3 has 71 owner complaints filed with NHTSA — that's 7.1x the segment average of 10. The most common issue is air bags problems (41% of all complaints), specifically: my car's passenger side front seat abruptly developed a sensor failure. the "passenger airbag off" light is lit, signaling the airbag won't deploy despite a passenger sitting in the seat. this is dangerous. there has been a recall issued in june 2018 on 140k audi cars with similar problem, my mod. There are 2 recalls issued for this model year.

1 crash report 2 injuries

Total Complaints

Recalls Issued

5/5

Safety Stars

7.1x

vs Segment Avg

Known Problems(top 5 of 8)

AIR BAGS

29 complaints

41%

• MY CAR'S PASSENGER SIDE FRONT SEAT ABRUPTLY DEVELOPED A SENSOR FAILURE. THE "PASSENGER AIRBAG OFF" LIGHT IS LIT, SIGNALING THE AIRBAG WON'T DEPLOY DESPITE A PASSENGER SITTING IN THE SEAT. THIS IS DANGEROUS. THERE HAS BEEN A RECALL ISSUED IN JUNE 2018 ON 140K AUDI CARS WITH SIMILAR PROBLEM, MY MOD
• PASSENGER SEAT OCCUPANCY SENSOR SRS AIRBAG LIGHT WARNING COMES UP WHETHER OR NOT THERE IS A SEATED PASSENGER. PASSENGER IS NOT BEING DETECTED AND AIRBAG STAYS OFF. HAPPENS WHEN STATIONARY OR IN MOTION. VEHICLE IS ALWAYS GIVING WARNING SOUNDS THAT SEAT BELT IS NOT FASTENED. ISSUE TESTED BY DEAL
• MY PASSENGER SEAT AIRBAG LIGHT STARTED COMING IN RANDOMLY. I THINK IT MIGHT BE THE SENSOR THAT SEES IF A SMALL CHILD IS IN THE SEAT, IN WHICH CASE IT TURNS OFF THE AIRBAG. BUT, WHEN NO ONE IS IN THE SEAT, I GET AN ALERT EVERY TIME I START THE CAR, AND IT BEEPS FOR MINUTES. PLUS, I THINK ITS TELLI

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“MY CAR'S PASSENGER SIDE FRONT SEAT ABRUPTLY DEVELOPED A SENSOR FAILURE. THE "PASSENGER AIRBAG OFF" LIGHT IS LIT, SIGNALING THE AIRBAG WON'T DEPLOY DESPITE A PASSENGER SITTING IN THE SEAT. THIS IS DANGEROUS. THERE HAS BEEN A RECALL ISSUED IN JUNE 2018 ON 140K AUDI CARS WITH SIMILAR PROBLEM, MY MOD”

— NHTSA complaint filing

When Problems Appear on the 2015 Audi S3

Based on 29 owner complaints that included an odometer reading. Median mileage at time of complaint: 45K miles. Most complaints cluster in the 30-60K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

AIR BAGS

In line with typicalmedian 52K mi · 11 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (2)

AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION19/06/2019

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.

Fix: 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.

Fuel Cost Calculator for 2015 Audi S3

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$1,847

Per month

$154

Per mile

15.4¢

MPG

City driving (worst-case MPG)

$2,087/yr

Highway driving (best-case MPG)

$1,549/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2015 Audi S3

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,853

Full coverage / month

$154

Liability only / year

$668

vs US avg

+11%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating0.94x

× vehicle age0.92x

= Full coverage estimate$1853

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Audi S3 Service Intervals

Oil change

10K mi / 12 mo

Tire rotation

10K mi

Brake fluid

24 months

Transmission fluid

40K mi

Engine coolant

100K mi

Spark plugs

60K mi

Cabin air filter

20K mi

Engine air filter

40K mi

Differential (AWD/4WD)

40K mi

Long-interval service (LongLife) uses fully-synthetic oil. Some engines have timing belts (check owner's manual).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Audi New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

4 yr / 50K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

12 yr / unlimited mi

Roadside assistance

4 yr / unlimited mi

Corrosion coverage is unlimited miles for 12 years

These are the terms for a new Audi. If you're buying a used 2015 S3, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Audi dealer for VIN-specific remaining warranty.

Estimated Repair Costs

AIR BAGS(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

SEATS/RESTRAINTS(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 71 owner complaints for this specific year, here's what to check or ask about:

☐
AIR BAGS: MY CAR'S PASSENGER SIDE FRONT SEAT ABRUPTLY DEVELOPED A SENSOR FAILURE. THE "PASSENGER AIRBAG OFF" LIGHT IS LIT, SIGNALING THE AIRBAG WON'T DEPLOY DESPITE A PASSENGER SITTING IN THE SEAT. THIS IS DANGEROUS. THERE HAS BEEN A RECALL ISSUED IN JUNE 2018 ON 140K AUDI CARS WITH SIMILAR PROBLEM, MY MOD
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: MY CAR'S PASSENGER SIDE FRONT SEAT ABRUPTLY DEVELOPED A SENSOR FAILURE. THE "PASSENGER AIRBAG OFF" LIGHT IS LIT, SIGNALING THE AIRBAG WON'T DEPLOY DESPITE A PASSENGER SITTING IN THE SEAT. THIS IS DANGEROUS. THERE HAS BEEN A RECALL ISSUED IN JUNE 2018 ON 140K AUDI CARS WITH SIMILAR PROBLEM, MY MOD
Typically appears around 50K miles. Repair cost ~$500
☐
SEATS/RESTRAINTS: MY CAR'S PASSENGER SIDE FRONT SEAT ABRUPTLY DEVELOPED A SENSOR FAILURE. THE "PASSENGER AIRBAG OFF" LIGHT IS LIT, SIGNALING THE AIRBAG WON'T DEPLOY DESPITE A PASSENGER SITTING IN THE SEAT. THIS IS DANGEROUS. THERE HAS BEEN A RECALL ISSUED IN JUNE 2018 ON 140K AUDI CARS WITH SIMILAR PROBLEM, MY MOD
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: HIGHWAY DRIVING AND CAR FELT AS IF IT WENT INTO NEUTRAL. SEVERAL DASH LIGHTS CAME ON AND CAR WAS ONLY ABLE TO SHIFT INTO FIRST GEAR. I MANAGED TO SAFELY GET OFF THE HIGHWAY AND AVOID A DISASTER AND / OR ACCIDENT. HAD MY VEHICLE TOWED TO THE DEALERSHIP AND THEY DID NOTHING TO THE CAR AFTER TWO DAYS.
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 2 recalls have been completed — free at any Audi dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)