Electrical system

Audi A3 Electrical problems by year

91 complaints filed with NHTSA about the Audi A3's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Electrical complaints by model year

'01 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 25'15 '16 '17 '18 '19 '20 '22 '23 '24 '25 '26

Year	Electrical complaints	Crashes	Injuries
2026	1	0	0
2025	1	1	0
2024	2	0	0
2020	1	1	0
2019	1	0	0
2018	5	0	1
2017	10	0	0
2016	19	0	0
2015	25	1	0
2012	6	0	0
2011	4	0	0
2010	2	0	0
2009	5	0	0
2008	1	0	0
2007	1	0	0
2006	6	0	0
2001	1	1	0

Latest A3 electrical complaints

2016 Audi A3 Electrical system Airbags Seats & seat belts

My 2016 Audi A3 (VIN [[redacted]]) underwent Safety Recall 69BY on [redacted], to correct a defect in the front passenger occupant detection system (PODS), including replacement of the occupant detection sensor. Less than two years later, the same safety-system malfunction returned. The vehicle intermittently displays "Safety system: system fault," "Audi pre sense: system fault," and "Passenger airbag off." These warnings appear unpredictably and sometimes clear temporarily before returning. This malfunction...

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creates a serious safety risk because the vehicle may fail to recognize a front-seat passenger and disable the passenger airbag during a collision. We cannot safely use the front passenger seat. On [redacted], at 74,151 miles, Audi Marin diagnosed the malfunction and documented fault codes B102202, B102229, and B12251B. The dealership confirmed that diagnostic testing continued to indicate a faulty passenger occupant sensor (G128) and recommended replacement. Audi Marin's service manager informed us that Audi has redesigned the replacement component, but the updated part is on an extended backorder from [[redacted]]. The dealership cannot currently complete the repair. Audi of America acknowledged the prior recall repair but referred repair coverage decisions to the dealership, citing the expired warranty. The vehicle remains unrepaired and is available for inspection. I request that NHTSA investigate whether the remedy installed under Safety Recall 69BY is failing prematurely, allowing the original passenger airbag safety defect to recur. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2026 Audi A3 Electrical system

The central locking system in my 2026 Audi A3 fails, causing the vehicle to physically unlock itself after I lock it and leave it parked. The myAudi app sends "Vehicle unlocked" and "Vehicle not fully locked" alerts. On multiple occasions I returned to find the vehicle genuinely unlocked after locking it and leaving the key fob inside my home. A remote lock command through the app returns "Vehicle was locked successfully," confirming the vehicle was physically unsecured. The dealer inspected the vehicle, scanned...

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for faults, operated the locking system, and left it locked for several days but could not duplicate the issue. Audi corporate support acknowledged "abnormalities on the backend" but directed me back to the dealer. The condition is intermittent and occurs after the vehicle has been parked for an extended period. It remains unresolved. Safety risk: the vehicle can be left unsecured while unattended, allowing unauthorized entry or theft. First occurred around 741 miles and continues. The component is available for inspection. No warning lamps appeared; only app messages and physical confirmation. The vehicle has been inspected by the dealer multiple times and is part of an open corporate case.

2024 Audi A3 Steering Electrical system Brakes

On [redacted] while driving my 2024 Audi A3 at highway speeds on a live freeway, the vehicle suffered a sudden and catastrophic electrical system failure. The dashboard immediately displayed critical warning indicators, including "Electrical Malfunction" and "Battery Malfunction" and "Drive system Malfunction." Without further warning, the vehicle's engine completely stalled and shut down while moving in active traffic. Due to the total loss of electrical power, the vehicle immediately lost all power steering...

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assistance and power braking assistance, causing the steering wheel and brake pedal to severely stiffen and become nearly unresponsive. I was forced to navigate a rolling, unpowered vehicle across highway lanes without steering or braking assistance to reach safety, creating a severe and life-threatening hazard to myself, my [[redacted]] son that was in the vehicle and other motorists. The vehicle currently has approximately 60,000 miles. This sudden shutdown mirrors the well-documented Belt Starter Generator (BSG) and alternator manufacturing defects that Audi has previously acknowledged and recalled in other model lines, but which are clearly actively failing in 2024 model year vehicles as well. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2016 Audi A3 Electrical system Fuel system

Electrical problems and fuel leak

2015 Audi A3 Electrical system

Smelt like something was burning and the smell was coming out of vents. Looked online and found that people have been having issues with the auxiliary heater for the HVAC to help the car warm up faster. I check mine and found that the connector was staring to melt. Seems like it could be a potential fire hazard if not caught soon enough.

2016 Audi A3 Electrical system

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 the battery and it would just turn off. Then I called AAA again and they towed my car back to my house and checked the...

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small 12 volt battery to see if that was the problem, they determined that the 12 volt battery still had 75% life in it. They were unable to get my vehicle started. The same message is still on the dashboard "Driver System Fault." The failure mileage is approximately 81,567. I want to know before I call the Dealer and get it towed again if this issue is the Hybrid High-Voltage Battery or the housing bonded seam could have lead to corrosion the service recall from a while ago. Service Action Code 93D2

2016 Audi A3 Electrical system

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 Hybrid battery had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 83,000.

2025 Audi A3 Electrical system Acceleration & cruise controlCrash

1) Electronic emergency brake goes on repeatedly when attempting to put vehicle in gear. 2) Speed control has coasted to a very low speed while on the highway several times, on its own with no vehicles in front of me. 3) Numerous other "glitchy" electrical issues exist. Dealer says they are collaborating with engineers in Germany. There is currently no fix. It is as if the vehicle is always cycling through various "glitches".

2015 Audi A3 Transmission & drivetrain Electrical system

My 2015 Audi A3 1.8T is experiencing the exact same failure symptoms and operational hazards as those described in Audi's own Warranty Extension U49, which covers certain 2017 and 2018 Audi A3 and A3 Cabriolet 2.0 TFSI models. According to Audi's bulletin, vehicles with faulty mechatronic units are eligible for replacement under an extended warranty due to safety concerns - sudden loss of drive, vehicle being stuck in neutral, and PRNDS flashing while in traffic. My vehicle is now exhibiting these identical...

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symptoms: (1) Sudden disengagement of all gears while driving when it tries to go to fourth gear. At this point, there is a (2) flashing PRNDS indicator and "Reverse Gear Not Available" message. (3) Loss of ability to accelerate in moving traffic, requiring emergency maneuvers, and halting traffic. (4) Temporary restoration of function after shutting off and restarting the engine, only for the problem to happen again. (5) Check Engine Light. This is a serious safety hazard that puts both the driver and other road users at risk. The only reason my vehicle is excluded from the coverage appears to be its model year (2015), despite the fact that the mechatronic unit and failure mode are identical to the covered 2017-2018 vehicles. I believe Audi overlooked this issue in other year models and, as such, I respectfully request that the NHTSA investigate why Audi is limiting this safety-related repair to only certain VIN ranges and model years, when vehicles just a couple of years older are exhibiting the exact same dangerous defect. A sudden loss of propulsion at highway speeds is a serious risk that warrants broader manufacturer accountability. The company should fix this issue as soon as possible.

2018 Audi A3 Electrical system Airbags

Audi had a recall on my 2018 A3 for a Passenger Occupant Detection System. in July 2023, Audi replaced the PODS Sensor mat. Recently, the same car has encountered the same issue. The PODS light indicates the airbag is off even if a passenger is sitting in the seat. There has been not repair work since July 2023, that would impact the PODS. And the warning lights reappeared after a period of normalcy. I feel this is an incomplete recall remedy and Audi is now wanting to charge me for the repair

2024 Audi A3 Electrical system

If the car is not driven for 20 minutes per day and the car sits for any length of time the check engine light comes on. The dealership advises it is the 12v battery is run down. According the Audi USA and the service order that the car is operating as designed.

2017 Audi A3 Electrical system

The Vehicle Electrical System Control Module J519 had a fault that prevented using many vehicle functions - no interior lights, no heated seats, dashboard and navigation screen too dim to read in daylight.

2016 Audi A3 Electrical system

The contact owns a 2016 Audi A3. The contact stated while driving 60 MPH, the Electronic Power Control System (EPC light) malfunctioned, and the vehicle lost power. The contact stated that the vehicle lost motive power, the temperature gauge raised with the radiator fan activated. The contact pulled over to the side of the road and the vehicle restarted immediately. No warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The vehicle was not repaired. The check engine...

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warning light and the electronic power control system warning light was illuminating on and off. The manufacturer was notified of the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

2015 Audi A3 Electrical system

Gear Shift Micro Switch This is a documented issue recalled for VW and Audi vehicles between 2015-2019. VW recalled all and still is fixing the issue in cars from those years, yet AUDI decided to just offer an extended warranty to those cars for that specific issue. Who is responsible VW or AUDI. If Audi is owned by VW and the issue is in both types of cars made by them, why aren't AUDI vehicles included to the recall and repair.

2018 Audi A3 Electrical system Driver assistance1 injury

The vehicle pre-sense stopped the vehicle due to the detection of an object however, there was no object. This happened going forward and in reverse multiple times, causing the car to come to a sudden, abrupt stop even at speeds in excess of 30mph. This resulting in my teen daughter having bruising from the seat belt. The car was taken to the dealership and the dealership recalibrated the control unit. The vehicle continues to unnecessarily activate pre-sense when in reverse, and causes the car to come to an abrupt...

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halt despite there being no object. The system may be responding to shadows. Numerous returns to the service department continue to yield "no codes". The PODS system was recalled and this is a related system.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data