2019–2021 Audi Q8 (4M8)
Browse our directory of 2019–2021 Audi Q8 (4M8) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
Registration Directory
Showing 40 registrations for the 2019–2021 Audi Q8 (4M8). Select any plate for an instant vehicle history check.
Common Problems & Reliability
The 2019–2021 Audi Q8 (4M8) has 4 known issues. 3 of these are classified as serious faults that could be expensive to repair. 1 are moderate concerns worth inspecting before purchase.
48V Alternator / Generator Failure
SeriousThe 48V mild-hybrid system can fail due to a faulty belt alternator starter, leaving the car stranded when the 12V system drains.
Symptoms: "Electrical System: Fault!" message in red, Start-stop inactive...
Est. repair cost: £1,000–£2,500
Adaptive Air Suspension Leaks
SeriousThe air springs can develop leaks causing uneven ride height, and the compressor burns out trying to compensate.
Symptoms: One corner sitting low after parking, Compressor running constantly...
Est. repair cost: £800–£2,500
48V Mild Hybrid System Faults
SeriousThe belt-starter-generator can fail, disabling start-stop and energy recuperation, and potentially stranding the car when both batteries drain.
Symptoms: Electrical system malfunction warning, Start-stop inactive...
Est. repair cost: £0 (recall) – £1,500
Infotainment and MMI Freezing
ModerateThe dual-touchscreen MMI system can freeze, go black, or reboot spontaneously, affecting climate and vehicle controls.
Symptoms: Frozen or black screens, Climate controls unresponsive...
Est. repair cost: £0–£900
Buying Tips for the 2019–2021 Audi Q8 (4M8)
- ✓Look out for 48V electrical system faults, specifically the Belt Starter Generator (BSG) failure, which will drain the battery and leave the car stranded; verify if it has been replaced under warranty.
- ✓Test the dual-touchscreen MMI system thoroughly for responsiveness and ensure the haptic feedback works evenly across both screens.
- ✓Check the frameless doors for excessive wind noise at motorway speeds, which may indicate worn weather seals or poorly aligned window regulators.
- ✓Inspect the enormous alloy wheels (up to 23 inches) for kerbing and check tyre tread depth; replacing a set of premium tyres is exceptionally expensive.
- ✓Ensure the adaptive air suspension adjusts smoothly between modes without sagging or throwing dash warnings, as replacing the complex struts is a huge expense.
Check Any Vehicle
Don't see your specific car listed? Enter any UK registration number for an instant vehicle history check — including MOT history, tax status, finance check, and write-off data.
Free Vehicle Check