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Engine & cooling

Audi A7 Engine problems by year

30 complaints filed with NHTSA about the Audi A7's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20213000
201910000
20171000
20162000
20151000
20142000
20135000
20125000
20071000

Latest A7 engine complaints

2021 Audi A7Engine & cooling

While driving on the freeway at approximately 65-70 mph, the engine suddenly stopped responding to all accelerator pedal inputs. The vehicle experienced an immediate, dangerous loss of motive power in active traffic. The dashboard displayed an amber check engine light alongside the central master warning light (an amber triangle with an exclamation point inside). I was forced to coast across active lanes of highway traffic to reach the right-hand shoulder. A State Trooper was on the shoulder and approached me, but...

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there was no formal report. After turning the vehicle completely off and waiting, the system temporarily reset, and throttle response returned. The following day, the exact same sudden loss of accelerator response occurred while driving in local traffic, again creating a severe risk of a rear-end collision. The vehicle has been taken to an authorized Audi dealership for a diagnostic evaluation. No diagnostic trouble codes (DTCs) have been provided by the dealer yet. There was no crash or injury, but the sudden, repetitive loss of propulsion on a high-speed roadway constitutes an extreme safety hazard. I am the original owner and have maintained all scheduled maintenance intervals.

Filed Incident EngineNHTSA 11754375
2019 Audi A7Engine & cooling

The contact owns a 2019 Audi A7. The contact stated the engine had been overheating, and the contact had to pull over to add coolant to the coolant reservoir before continuing to drive. The failure became more persistent within the last 2 months. The vehicle was taken to the dealer, and it was determined that there was coolant leaking into the engine from the water pump, vacuum lines, and the cooling system was inoperable. The part was ordered to repair the vehicle. The contact researched online and discovered that there was a Class Action Lawsuit associated with the failure. The manufacturer was not made aware of the failure. The approximate failure mileage was 50,000.

Filed Incident Engine and engine coolingNHTSA 11751748
2019 Audi A7Engine & cooling

The contact owns a 2019 Audi A7. The contact stated that while driving approximately 25-27 MPH, the vehicle stalled in the middle of the road. Several unknown warning lights were illuminated, and the message "Engine Malfunction" was displayed. The vehicle then restarted independently, but the message remained displayed. The vehicle was taken to the dealer to be diagnosed. The vehicle was not yet diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown.

Filed Incident EngineNHTSA 11750102
2021 Audi A7Engine & cooling

The first time, while driving at 50-55mph, the engine decelerated suddenly. After about 10-15 seconds struggles with the gas pedal and brake pedal, the car accelerated normally. I pulled safely to side of the road to shut off the engine and start again. Things seemed to work like normal. The control panels did not show any warning signs. The second and third times (couple weeks later), while driving around 40-45mph, the engine decelerated suddenly again. After some struggles like I did the first time, the engine...

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accelerated like normal. Like the first time, the control panels did not display any warning signs. I took the car to the Audi dealer garage and they couldn't identify the problems. They performed two "engine software updates" and said hopefully it should address the engine decelerate issue. I was charged $299 for the diagnostic tests. I am worried what would happen if I was driving on a busy and highspeed Freeway!

Filed Incident EngineNHTSA 11729313
2021 Audi A7Engine & cooling

Water pump design failure caused a leak of coolant into vacuum lines preventing coolant from cooling engine and causing immediate overheating. Known issue previous class action lawsuit.

Filed Incident EngineNHTSA 11704951
2019 Audi A7Electrical systemEngine & coolingFuel system

2019 Audi A7 VIN: [[redacted]] Mileage: 53336 Fuel Pump and Starter Battery Failure Car stalls during operation. Confirmed by Tyson Audi Dealer wants to charge me for the repair of the said parts. Warning light appeared, then went off. Vehicle was taken to dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 11672007
2014 Audi A7Acceleration & cruise controlEngine & cooling

Below is the system failed/malfunction. Speedometer reads inaccurate reading while driving. Steering column is off alignment, potentially at risk of accidental collision. Control Units: 29 Fault count: 33 Control Units: 09 Central Electrics System description: BCM1 2.0 Software number: 4H0907063CG Software version: 0130 Hardware number: 4H0907063 Hardware version: H12 Faults: U011500 - Lost Communication With ECM/PCM "B" static Priority - 2 Malfunction frequency counter - 1 Unlearning counter - 208 km-Mileage...

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- 216932 km Voltage terminal 30 - 14.1 V Voltage terminal 15 - 14.1 V Control module temperature - 36 °C System status - Terminal 15 on Terminal 15 status - On Terminal 15 status via CAN - On IN ZAS Kl X - On Engine running - On IN ESP Stillstandsflag - standstill detected Datenfeld - 0 date - 2025-04-10 21:36:10

Filed Incident Vehicle speed control · EngineNHTSA 11664174
2019 Audi A7Engine & cooling

2019 Audi A7: Water Pump failed. Audi Dealership diagnosed and replaced the Water Pump. Car overheated - warning light came on - and I drove it to the nearest Audi Dealership. I was on a road trip and 800 miles from home when water pump failed. Repairs cost $1950 and took 5 days to complete costing another $1000 in hotel and food expenses plus ruined the road trip.

Filed Incident EngineNHTSA 11613821
2016 Audi A7Engine & cooling

Component/System Malfunction: The engine control unit fails, causing the engine to shut off unexpectedly while driving. This component is available for inspection. Safety Risk: The sudden shutdown poses severe risks. It happened on local roads and highways at speeds over 65 mph, creating immediate danger. Reproduction and Confirmation: The problem has been reproduced but not resolved by Audi Columbus. Inspection: Inspected multiple times by Audi Columbus, but not by police or insurance. Warning Lamps/Symptoms:...

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No warning lamps or messages before the engine shuts off; the failure is sudden. Detailed Timeline of Incidents: •[[redacted]]: First incident; the engine shut off on a local road. Paid $1,500 for repairs, but the issue persisted. •[[redacted]]: Engine shut off again, preventing going to office due to lack of loaner vehicles. •[[redacted]]: Engine shut off on the highway, causing extreme fear and distress. Vehicle towed to the service center. The engine shut off in a high-crime area. Restarted vehicle message came on, Vehicle towed from work place. Service Center Issues: •Shutdowns prevent work due to no loaners. •Service advisor Ellis declined services without permission and acting like he has no idea why the vehicle is there even though he is the same service advisor dealing with the constant issue. •No effective resolution despite multiple visits. Impact: The repeated issues severely affect my mental health and safety. Request for Resolution: I seek either a replacement vehicle or a full refund. I urge NHTSA to investigate this defect to prevent accidents. Supporting Evidence: I can provide once contacted Thank you for your prompt attention to this matter. I look forward to your response. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident EngineNHTSA 11603833
2014 Audi A7Engine & cooling

The contact owns a 2014 Audi A7. The contact took the vehicle to the local dealer for routine maintenance and was informed that the motor mounts needed to be replaced. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 63,000.

Filed Incident EngineNHTSA 11524888
2019 Audi A7Electrical systemEngine & cooling

Multiple warnings indicating to contact dealer (Lane departure, adaptive cruise control, collision avoidance, etc) then 1 minute later transmission failure and engine failure imminent.... pull over immediately and contact dealer. while driving a few minutes later my center MMI went blank then my electronic dash went blank, transmission went into neutral and the engine died all within a few seconds. Fortunately I was able to coast to a stop and unable to restart the vehicle. towed to dealer who assessed that starter/generator needed to be replaced.

Filed Incident Electrical system · EngineNHTSA 11504805
2019 Audi A7Electrical systemEngine & coolingFuel system

I am reaching out to update complaint number 11503265. Back in October of 2022, my vehicle turned off on me one time at the gas station and would not start until I waited 5 minutes. The vehicle did the same thing about 15 minutes later after I arrived at a friends' house. Following that incident later on that night it happened again. I have also had some issues with the vehicle not accelerating.

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 11503879
2019 Audi A7Electrical systemBrakesEngine & cooling

Received an electrical malfunction - please call service warning icon on dash display. In less than one mile, I received cascading sequential warnings - including transmission and steering warnings - please pull over now. I attempted to exit the freeway on the next ramp, on the I10 Freeway in Claremont, CA on the Monte Vista Exit - but the car completely lost all power and electric (dash and all screens were dark) blocking a traffic lane. Was stranded there for over 45 Minutes until AAA/Highway Patrol were...

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able to obtain a tow truck. Car was towed to dealer and found out it is a known issue with the 48V Alternator System in 2019 Model Year Audis. Found out alternator is unavailable due to supply chain issues and car will be out of service for at least 4 weeks! Per research on Audi Forms, this is a known issue and Audi should be recalling these vehicles and performing the KNOWN software update (TSB Software Update 27-22-45 - Version 527) on all 2019-2020 Audi vehicles with this system. I was in fear of being rear-ended and injured - and to find out this should not have happened is very disappointing. Please require Audi to recall these vehicles and update the software so others are NOT put in this same life threatening situation - and then forced to wait until the vehicle can be fixed - currently at least 4 weeks! It has happened to MANY others - just check the Audi Owner Forums on the internet. Thank you for your consideration.

Filed Incident Electrical system · Service brakes · EngineNHTSA 11503807
2019 Audi A7Electrical systemEngine & cooling

The contact owns a 2019 Audi A7. The contact stated that while driving at an undetermined speed, the vehicle was shuddering and failed to accelerate as needed. The contact stated that the oil warning light was illuminated. The contact received notification of NHTSA Campaign Number: 22V155000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 45,000. VIN tool confirms parts not available.

Filed Incident Electrical system · EngineNHTSA 11503265

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

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