IsItAGoodCar
Reliability Guide

Common Problems with the
2023 Audi A7 (4K8)

We've identified 4 known issues that can affect the 2023 Audi A7 (4K8). 2 of these are serious faults that could be expensive to repair.

4
Known Issues
2
Serious
2
Moderate
0
Minor

All Known Issues

DL382 S tronic Gear Selection / Mechatronic Faults

SeriousGearbox & Transmission

Control or clutch faults can interrupt gear selection. Identify the gearbox code first: this entry applies to the longitudinal DL382 family, not every automatic sold under the same model name.

Warning Signs:

Gearbox warning, Delayed engagement or missing gears

What to Inspect:
  • Test drive from cold and again when warm
  • Check gearbox-specific service invoices and obtain a diagnostic report
Verified by IsItAGoodCar Research TeamUpdated

TDI AdBlue / NOx Sensor Faults

SeriousExhaust & Emissions

SCR dosing or NOx sensor faults can trigger an emissions warning and a no-restart countdown. Adding fluid alone does not resolve every system fault.

Warning Signs:

AdBlue system fault, No-restart countdown

What to Inspect:
  • Check stored faults and repair invoices
  • Have dosing pressure and NOx readings checked before replacing parts
Verified by IsItAGoodCar Research TeamUpdated

Dual MMI Touch Response Screen Freezing and In-Car Sim Dropout

ModerateElectrics & Electronics

The dual upper and lower haptic touchscreens can suffer software freezing, boot lag, and random dropouts of Audi Connect online navigation services.

Est. Repair Cost: £0–£750
Warning Signs:

Lower climate control display becomes unresponsive, Top screen stuck on loading screen, Connected smartphone CarPlay drops

What to Inspect:
  • Test both touchscreens through multiple submenus
  • Verify MMI software revision history
Verified by IsItAGoodCar Research TeamUpdated

Front Suspension Multi-Link Control Arm Bushing Wear

ModerateSuspension & Chassis

Due to the nearly 2-tonne curb weight and large 20/21-inch alloy wheels, the rubber-metal hydro-bushings in the front five-link suspension tear and leak damping fluid, causing front-end thumping over bumps.

Est. Repair Cost: £350–£750
Warning Signs:

Thumping noise over speed humps, Vague high-speed motorway tracking, Uneven inner front tyre wear

What to Inspect:
  • Inspect front upper and lower control arm rubber bushes for splits or fluid leakage
  • Check front tyres for uneven shoulder wear
Verified by IsItAGoodCar Research TeamUpdated

Buying Tips for 2023 Audi A7 (4K8)

  • ✓Test the dual touchscreens (MMI) extensively for lag or freezing, as early software bugs were common
  • ✓Check for any "Electrical System Malfunction" warnings, which often relate to the 48V mild-hybrid system
  • ✓Listen for clunks from the front suspension, as heavy weight takes its toll on control arm bushes
20222024–2025
Check a 2023 Audi A7 (4K8) by Registration