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2021–2024 Audi Q7 Mk2 (4M)

Browse our directory of 2021–2024 Audi Q7 Mk2 (4M) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.

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Common Problems & Reliability

1
Serious
2
Moderate
1
Minor

The 2021–2024 Audi Q7 Mk2 (4M) has 4 known issues. 1 of these are classified as serious faults that could be expensive to repair. 2 are moderate concerns worth inspecting before purchase.

Air Suspension Strut / Compressor Failure

Serious

The 4M rides beautifully on air, but leaking struts or tired compressors can leave the car sagging and trigger costly chassis warnings.

Symptoms: Uneven ride height after parking, Compressor running loudly or for too long...

Est. repair cost: £700–£2,000

NOx Sensor / AdBlue System Faults

Moderate

Diesel SCR faults are the most common high-value annoyance on the 4M, often causing AdBlue warnings and eventual no-start countdowns even when the tank has been topped up.

Symptoms: AdBlue warning or no-start countdown, Engine light with emissions faults...

Est. repair cost: £250–£1,500

MMI / Electrical Module Glitches

Moderate

Owners commonly report frozen MMI screens, camera faults, battery drain, and keyless-entry glitches - usually software or module related, but expensive if neglected outside warranty.

Symptoms: Blank or rebooting MMI screen, Camera unavailable or parking-sensor errors...

Est. repair cost: £0–£1,200

Software and Infotainment Bugs

Minor

The complex MMI and vehicle management software can cause spontaneous reboots, camera dropouts, and various phantom warning lights.

Symptoms: Spontaneous MMI reboot, Reversing camera unavailable...

Est. repair cost: £0–£500

View detailed Audi Q7 Mk2 (4M) fault guide

Buying Tips for the 2021–2024 Audi Q7 Mk2 (4M)

  • ✓Diesel buyers should look hard at AdBlue and NOx-sensor history because repeated no-start countdowns are a known pain point
  • ✓Air-suspension cars must sit level after standing and should not show "level control" warnings after startup
  • ✓Test the MMI, digital dash, cameras, keyless entry, and power tailgate thoroughly because module faults can be expensive to chase
  • ✓If the car has towed regularly, ask for gearbox servicing and listen for driveline shunt at low speed

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