2021 Audi A7 E

Owner complaints

What owners report most

1. Engine2
2. Electrical system1
3. Fuel/propulsion system1

Latest complaints

• Apr 30, 2026CA
  Engine
  At approximately 43,044 miles, my 2021 Audi A7 55 TFSI e quattro (PHEV) was diagnosed with a failed N632 coolant changeover valve — a component of the PHEV thermal management heating circuit. The vehicle has a complete, documented service history with no maintenance gaps. The N632 is an…

  At approximately 43,044 miles, my 2021 Audi A7 55 TFSI e quattro (PHEV) was diagnosed with a failed N632 coolant changeover valve — a component of the PHEV thermal management heating circuit. The vehicle has a complete, documented service history with no maintenance gaps. The N632 is an electronically controlled valve that routes coolant between the combustion and hybrid/electric circuits and is essential for cabin heating in EV mode, battery pre-conditioning, and engine warm-up. Failure of this valve can result in loss of cabin heat, coolant leaks into the engine bay, and potential cascade of electrical faults if coolant migrates into the wiring harness. The repair estimate is $1,700. The factory warranty, Audi Care plan, and third-party extended service contract (United Car Care Protection Plus) have all denied coverage. This failure on a low-mileage PHEV with full service history suggests a premature component defect in Audi's PHEV thermal management system. I am requesting NHTSA investigate whether this constitutes a pattern of failure across 2021 Audi PHEV vehicles.

• Jul 16, 2025CT
  Electrical system · Engine · Fuel/propulsion system
  The warning ‘drive system failure’ appears while driving and tells you to stop the car immediately. This happens randomly while driving on a highway. The engine now makes a higher pitched noise and then the transmission will no go into drive it immediately goes into neutral, the car slows down and…

  The warning ‘drive system failure’ appears while driving and tells you to stop the car immediately. This happens randomly while driving on a highway. The engine now makes a higher pitched noise and then the transmission will no go into drive it immediately goes into neutral, the car slows down and you must pull over as you have no control over the car. The gas doesn’t work. There are so many alerts that pop up with a malfunction- parking brake, transmission, distance warning, audi presense warning, tire pressure malfunction, transmission malfunction. BEFORE this- There was an issue found when a check engine light appeared after the car failed emmissions testing. Control Pilot Circuit High and AC refrigerant pressor sensor B circuit failures listed. The car went to Audi and they said it was an air conditioning issue and other faults. The cleared the faults and signed off on the emmissions paperwork. I told Audi of the issue when getting it serviced- they could not replicate the random drive system failure alert. Again the same issue- bring it to audi- they had it for a week or so- still cannot replicate the issue. A few weeks later while driving on I91, the driver system alert comes on and there was a high pitched sound car goes into neutral- I have no control over the vehicle and coast down 2 roads and into a driveway of a volkswagen dealership in an unsafe area of Hartford. I then started the care up and took it to Audi of East Hartford. The replicated the issue they said and replaced the entire EOC unit for almost $7000. They had the car for a month. Then after having it back a couple of weeks it randomly does it again and restarting the car would reseg it only once and then another alert and the car dies on the highway and I again lose control and pull over to the shoulder. VERY VERY unsafe. The car just dies randomly on a highway. It happened in May of 2025, June and July. July 15 was the most recent immediately after being ‘repaired’.

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11011307This bulletin provides information when high beam assist, or traffic sign detection limited, DTC C12B3FD may be stored in the DAS control module.
• 11011303This bulletin provides information when the anti-theft alarm activates for no reason, or when the anti-theft alarm does not activate.
• 11011297This bulletin provides information regarding documenting cell module labels when replacing HV modules.
• 11011296This bulletin provides service-info relating to lithium-ion high-voltage batteries; determining energy content.
• 11011293This bulletin provides informatin when there is shuddering when charge level is low.
• 11011285This TSB Provides information when parking assistance provides false warnings.
• 11011282This bulletin provides information when speaker rattles, vibrations, or audio interference is noted.
• 11011277This bulletin provides information when the parking brake does not work sporadically; DTC B107BF0 or B10FCF0 stored in the driver assist systems.
• 11011276This TSB provides information when DTCs U142100 and U164200 are stored as passive/sporadic in the gateway.
• 11011274This bulletin provides information when the restricted function icon for Audi Pre sense is displayed after engine starts.
• 11011273This bulletin provides information when DTC B187A00 is stored: Park steer assist cancelation (symptom number 98341).
• 11011272This bulletin provides information when the overhead view camera (TopView) calibration fails.
• 11011268This bulletin pertains to complaints/general information regarding SOS Emergency Assist.
• 11011263This bulletin provides information regarding cleaning exterior glass.
• 11011256This bulletin provides information when the DTCs B200FF0 to B200FF5 are stored in the J775 suspension control unit.
• 11011240This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
• 11009983Vehicle Concerns Before Recall Repair Available
• 11009967This bulletin provides information when there is an issue with wireless charging/wireless charging not working with Audi Phone Box.
• 11009965This bulletin provides information when the calendar function is not available.
• 11009959This Pending Service Solution (PSS) requests that technicians enter a record in the PSS Database when there is an Audi connect installation error.
• 11009958This TSB provides information when DTCs U142100 and U164200 are stored as passive/sporadic in the gateway.
• 11009954This bulletin provides infomration related to Driver assist systems: parking aid, maneuver assist, rear cross-traffic assist not working (DTC U111000, U112300).
• 11009952This bulletin provides informatin whem the individual overhead view cameras are inoperative (picture is blurry or fogged up), DTCs B200FFA, B127C04, C12AE02.
• 11009951This TSB provides information when the Virtual cockpit has a pixel error.
• 11009948This bulletin provides information when there is noise from the backrest of the front seat.
• 11009945This bulletin provides information when the seat belt and pre sense warnings appear intermittently while driving; DTC B101C07 stored in the airbag module.
• 11009941This bulletin provides diagnostic information regarding the locking system.
• 11009938This bulletin provides information when there are droning noises/vibrations in tight corners, vehicles with PR number GH4 (quattro with ultra technology).
• 11009936This bulletin provides informatin when there is binding or vibrations in tight turns with quattro Ultra.
• 11009933This bulletin provides information when there is a function restriction with event memory entry P071800 - P276800 (symptom 20736 - 20737).
• 11009928This bulletin provides informatin when the engine does not run smoothly at idling speeds.
• 11009403This bulletin provides information when there is shuddering when the charge level is low.
• 11009400This TSB provides information when there is a High-Voltage fault, gearbox fault or MIL on in the instrument cluster DTC(s) P0A4000, P0A2E00 or P0A2B00.
• 11009399This bulletin providse information in order to document when replacing HV modules.
• 11009390This Pending Service Solution (PSS) requests that technicians enter a record in the PSS Database when there is an Audi connect installation error.
• 11009386This bulletin provides service information when the message "Electrical system: fault" appears in the instrument cluster; event memory entry B200094 (00C4) is stored.
• 11009380This bulletin provides information about the Audi pre sense warning, warning jolt and/or brake engagement.
• 11009378This bulletin provides inormatin when the guages is faulty in the Audi virtual cockpit.
• 11009377This bulletin provides information when the audi virtual cockpit display has semi-circular marks on the edges of the display.
• 11009375This bulletin provides information pertaining to the GFF test plan required for A/C compressore replacements, regardless of the concern.

Every Audi A7 E model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.