2024 Audi Q4 E-Tron electrical system problems

What owners report

• “On March 20, 2026, while my 2022 Audi Q4 e-tron (VIN: [XXX] ) was parked in my private garage at approximately 98% battery charge, I attempted to start the vehicle and experienced a complete electrical system failure. All electronic systems failed simultaneously, including: brake system (Brake…”

  filed Mar 24, 2026

• “I am filing this complaint due to ongoing electronic and drivetrain malfunctions that may impact safe vehicle operation. AWD System Malfunction (Primary Safety Concern) The vehicle repeatedly displays four-wheel drive system malfunction warnings. I have brought the vehicle to the dealership three…”

  filed Feb 15, 2026

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

Related recalls

• On-board charger (OCDC) may fail and stop charging the 12-volt battery, which can result…
  Campaign 25V125000 · Feb 28, 2025
• When using the industrial 220V/240V plug at the 100% charge setting, some home power…
  Campaign 23V842000 · Dec 13, 2023

Related service bulletins

• This bulletin provides information when the remaining range is too low/has dropped.

  TSB_2082768_1 · Service Bulletin/Repair Instructions · issued Jul 16, 2026

• This bulletin provides information regarding the work steps necessary when replacing high-voltage modules.

  TSB_2077497_2 · Service Bulletin/Repair Instructions · issued Jul 16, 2026

• 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 there is a pwertrain fault; P0A6200/P0A6500/P0A5F00 - phase current U-V-W.

  TSB_2073434_3 · Service Bulletin/Repair Instructions · issued Jun 30, 2026

Other reported problem areas on the 2024 Audi Q4 E-Tron