A3 (8V)
NHTSA Safety Ratings About NHTSA ratings
Engine Reliability Ratings
2.5T
2.5L 5-cyl / 400 hpView details
Complaint Breakdown
Known Issues
1 additional engine variant with fewer than 10 complaints not shown.
Battery & Propulsion Reliability
Plug-in Hybrid (PHEV)
Battery & propulsion complaint analysis for the 2015-2020 Audi A3
Too few field reports to rate this generation against peers yet. Most recently launched models accumulate complaints over the first 2-3 years.
What kind of battery complaint?
Among the 7 battery-related complaints, here's the type mix. These percentages describe what the complaints are about — not how reliable the vehicle is overall.
Loss of power, drive unit, inverter, traction motor, DC-DC converter.
Propulsion battery defects, capacity loss, BMS faults, replacement claims.
Low-voltage battery deaths, common on EVs and hybrids that use a 12V for accessories.
Hybrid system warnings, eCVT, motor-generator, hybrid transaxle.
Sample complaint excerpts
Electric Propulsion
- [2016] The contact owns a 2016 Audi A3. The contact stated that while the vehicle was parked with the engine running, the vehicle experienced a sudden loss of motive power. During the failure, the message “Driver System Fault” was displayed on the instrument panel. The contact was unable to restart or operate the vehicle. The vehicle was towed to the dealer, where it was diagnosed and determined that the
- [2016] The **mechatronic unit** (integrated into the S-Tronic dual-clutch transmission) is the primary component that fails. This unit controls gear shifts, clutch engagement, and hydraulic pressure within the transmission. Common failure points include: - Internal electronic control module (ECU) faults. - Malfunctioning solenoids or pressure valves. - Software glitches or calibration errors. **2
- [2016] THE PASSENGER SIDE AIR BAG IS PERMANENTLY DISABLE, EVEN WHEN A PASSENGER IS SEATED ON IT- IT APPEARS THE SENSOR UNDER THE SEAT DOES IS NOT WORKING PROPERLY. THIS IS CRITICAL MALFUNCTION AS THE PASSENGER WILL NOT BE PROTECTED IN A COLLISION CASE. ADDITIONALLY, THE SEATBELT LIGHT COMES ON TO FASTEN SEATBELT EVEN WHEN NO ONE IS SAT ON THAT SEAT AND WON'T GO AWAY UNTIL THE BELT IS FASTEN. I HAVE BEEN
High-Voltage Battery
- [2016] My 2016 Audi A3 Sportsback E-tron vehicle was parked at my house. When I went to start it the engine did nothing, no power. The message “Driver System Fault” and a red triangle with a red ! in the middle was displayed on the instrument panel. I was unable to start or operate the vehicle. I called AAA and they towed the vehicle to a Recharge Hybrid pump location near my house. I tired to charge th
- [2017] The high voltage battery no longer charges to full. Only 7 out of 8 possible indicator bars are illuminated, the car now only shows 17-20 miles available. When I purchased the car 3 years ago, it showed 28-29 miles available. Car was at Audi dealership, got tested, Audi says it's within tolerance. I disagree, 30% to 40% of the capacity is lost so far. There are many more owners that are reporting
12V Auxiliary Battery
- [2016] My 2016 Audi A3 Sportsback E-tron vehicle was parked at my house. When I went to start it the engine did nothing, no power. The message “Driver System Fault” and a red triangle with a red ! in the middle was displayed on the instrument panel. I was unable to start or operate the vehicle. I called AAA and they towed the vehicle to a Recharge Hybrid pump location near my house. I tired to charge th
Hybrid Drivetrain
- [2016] The contact owns a 2016 Audi A3. The contact stated that while the vehicle was parked with the engine running, the vehicle experienced a sudden loss of motive power. During the failure, the message “Driver System Fault” was displayed on the instrument panel. The contact was unable to restart or operate the vehicle. The vehicle was towed to the dealer, where it was diagnosed and determined that the
Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. Rates are absolute counts, not normalized per-VIN — high-volume models naturally produce more raw complaints than low-volume ones. Self-reported death and injury counts are capped per complaint to limit form abuse.
Vehicle-Level Issues
These issues affect the Audi A3 regardless of engine variant.
Recalls (6)
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain front-wheel drive 2015-2020 Audi A3 Sedan, 2015-2019 Audi A3 Cabriolet, 2019-2020 Volkswagen Jetta GLI, 2018 Golf Sportwagen GP, 2018-2019 Golf Sportwagen A7, 2015-2017 Golf Sportwagen, 2015-2020 Golf GTI, and 2015-2020 Golf A7 vehicles. Due to a problem with a suction jet pump seal inside the fuel tank, fuel may flow into the evaporative emissions (EVAP) system and possibly leak out of the charcoal canister.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019 Volkswagen Tiguan LWB, Golf Sportswagen A7, Golf Alltrack, Golf R GP, Audi Q3, Audi A3 Cabriolet, 2019-2020 Jetta NF, Jetta GLI, Golf GTI, Atlas, Golf A7, Audi A3, 2020-2021 Atlas Cross Sport, and 2021 Atlas FL vehicles. The tire pressure monitoring system may not detect an air pressure loss in adequate time when deflating occurs among all four tires simultaneously. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 138, "Tire Pressure Monitoring Systems."
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2016 Audi TT Roadster, TT Coupe, S3 Sedan, R8 Coupe, A3 Sedan, A3 Etron, A3 Cabriolet, 2016 Golf Sportwagen, Golf R, Golf GTI, Golf A7, and E Golf vehicles. During air bag deployment, the front passenger air bag may explode or deploy improperly.
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.
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.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2017 Audi A3 and S3 Sedan vehicles. In a lower-speed crash situation, the air bag control unit software may deploy the passenger frontal air bag improperly if the front seat passenger is sitting on the edge of the seat or is laying in the seat with the seat reclined. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
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Alternatives in Compact Sedan
Frequently Asked Questions
What are the most common 2015-2020 Audi A3 problems?
The 2015-2020 Audi A3 has accumulated 547 NHTSA complaints. The most frequently reported problem areas are Safety Systems, Engine, Fuel System. As with any used vehicle, a pre-purchase inspection and vehicle history report are recommended.
Which Audi A3 engine is most reliable?
The 2015-2020 Audi A3 was offered with 2 engine options. Based on NHTSA complaint data, the 2.5L 5-cyl has the lowest complaint density and is considered the most reliable choice for buyers.
Is the 2015-2020 Audi A3 a good used car?
The 2015-2020 Audi A3 can be a solid used car purchase depending on trim, mileage, and maintenance history. With 547 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.
How many NHTSA complaints does the 2015-2020 Audi A3 have?
The 2015-2020 Audi A3 has 547 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.
What recalls affect the 2015-2020 Audi A3?
There are 6 NHTSA recalls affecting some 2015-2020 Audi A3 vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.
What should I check before buying a used Audi A3?
Before buying a used Audi A3, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Safety Systems, Engine, Fuel System, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.
What are the NHTSA crash test ratings for the A3?
The 2020 Audi A3 received an overall 5-star safety rating from NHTSA. Frontal crash: 4 stars. Side crash: 5 stars. Rollover: 4 stars (10.9% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: Standard. Lane Departure Warning: Optional. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 547 complaints analyzed. Data confidence: high. Last updated: 2026-04-07.