2021 Audi Q7 electrical system problems

41 owner complaints filed with NHTSA name the electrical system on the 2021 Audi Q7 — 61% of all complaints for this model year.

Electrical System complaints

61%

share of all complaints

—

median reported incident mileage

3 / 0

crash / fire reports

What owners report

“My independent repair shop has just diagnosed a coolant leak weeping from the vacuum line connection at the water pump; they referred to this problem as “coolant migration”. As documented extensively by Audi in Technical Service Bulletin 19-23-45 (2070349/2), this indicates an internal seal failure…”
filed Jun 27, 2026
“My rear backup sensors have fallen out of my vehicle and the dealership wants to charge me $200.00 to diagnose the problem. All they need to do is reattach the sensors which were originally put on the vehicle with double sided adhesive tape which is a poor design. I cannot afford this $200.00. This…”
filed Jun 15, 2026
“We were in my vehicle. An audi q7 2021 driving in the highway ([XXX]) Headed to Ohio from Florida and during a traffic jam all the sudden my car stopped and will not react and was “stucked in park” and transmission malfunction, parking brake malfunction, start/stop system malfunction codes popped up all at once. So…”
filed May 22, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
TSB_2073747_4 · Service Bulletin/Repair Instructions · issued Jul 9, 2026
This bulletin provides information when various driver assistance systems are unavailable.
TSB_2076397_3 · Service Bulletin/Repair Instructions · issued Jul 2, 2026
This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
TSB_2069331_7 · Service Bulletin/Repair Instructions · issued Jun 23, 2026