IsItAGoodCar
Reliability Guide

Common Problems with the
2022 Audi A8 Mk4 (D5)

By 2022 the BSG and MMI software issues had been largely resolved through recalls and updates. The D5 A8 remains supremely comfortable but is an expensive car to maintain regardless of year.

What changed for 2022

  • •Updated engine range and mild-hybrid calibration
  • •Revised MMI software with improved stability
  • •Enhanced driver-assistance features

Common MOT watch-outs

  • !Air suspension strut leaks at 50k–100k miles
  • !Coolant regulating valve and water pump leaks
  • !Electrical module and sensor faults as mileage increases
3
Known Issues
2
Serious
1
Moderate
0
Minor

All Known Issues

Air Suspension Strut Leaks

SeriousSuspension & Chassis

The standard adaptive air suspension develops leaks over time, causing uneven ride height and expensive compressor replacement.

Est. Repair Cost: £800–£3,000
Warning Signs:

Car sitting low on one corner, Compressor running constantly, Level-control warning

What to Inspect:
  • Check ride height before engine start
  • Cycle through height settings
  • Listen for compressor strain
Verified by IsItAGoodCar Research TeamUpdated

TDI SCR / AdBlue System Faults

SeriousExhaust & Emissions

Diesel versions with SCR can develop dosing, heater or NOx sensor faults. A system fault may lead to a no-restart countdown even with sufficient AdBlue; diagnosis should distinguish fluid level from component failure.

Warning Signs:

AdBlue system warning, No-restart countdown

What to Inspect:
  • Check warning history and emissions repair invoices
  • Request a diagnostic check of dosing pressure, heater operation and NOx readings
Verified by IsItAGoodCar Research TeamUpdated

Dual-Touchscreen MMI Freezes

ModerateElectrics & Electronics

Both the upper and lower MMI screens can freeze, go black, or reboot, affecting navigation, climate and seat controls.

Est. Repair Cost: £0–£2,500
Warning Signs:

Upper screen going black, Lower climate screen unresponsive, Spontaneous system reboots

What to Inspect:
  • Test both screens extensively
  • Try a 15-second power button reset
  • Check for pending software updates
Verified by IsItAGoodCar Research Team

Buying Tips for 2022 Audi A8 Mk4 (D5)

  • Ensure all software recalls and updates are completed
  • Check for evidence of regular oil changes on 3.0 TFSI
  • Budget for air suspension attention if not already done
2019–20212023–2024
Check a 2022 Audi A8 Mk4 (D5) by Registration