Air suspension compressor and strut failure
- Typically appears
- 70,000+ miles
- What to inspect
- Check the car sits level after standing overnight and cycle ride heights

A large premium seven-seat SUV. Everything on it is expensive, so a proper pre-purchase inspection protects the margin.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
The most commonly reported faults on the 2015–2024 Audi Q7 are Air suspension compressor and strut failure, DPF, EGR and AdBlue faults on 3.0 TDI models and Timing chain and oil consumption issues on some V6 units. Of the documented issues, 1 rated critical and 4 rated high · these are the ones worth inspecting first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planBased on the documented faults on this page for the Audi Q7.
Guidance only · reflects reported patterns, not a specific car's condition.
Air suspension compressor and strut failure
DPF, EGR and AdBlue faults on 3.0 TDI models
Turn these known faults into a step-by-step viewing plan for this exact Audi Q7 · $9.
Build the inspection planTiming chain and oil consumption issues on some V6 units
MMI, camera and driver assistance faults
Coolant pooling in the engine V due to a leaking coolant shut-off valve or EGR cooler flange on 3.0 TDI models.
Quattro centre differential rumble or binding during tight, low-speed turns due to degraded transfer box fluid.
Blocked panoramic sunroof drains causing water ingress, leading to damp carpets and potential module damage.
Prematurely worn or warped front brake discs due to the vehicle's excessive kerb weight.
Build a tickable plan for the viewing · where to look, what a bad result means and what to ask the seller. One-off price $9.
Build my inspection planAir suspension. Leave it overnight; if a corner has dropped, price the repair before you buy.
Only with full main-dealer history. Repair costs do not scale down with the sale price.
Large families wanting seven proper seats with towing ability and a premium badge.
The 3.0-litre V6 TDI, typically badged as the 45 TDI or 50 TDI, is the UK market staple. While it suffers from known coolant valve leaks, it generally outlasts the TFSI petrols if serviced correctly. The 50 TDI offers the best balance of power and economy for forecourt turnaround.
Audi claims the eight-speed Tiptronic transmission is sealed for life, but specialists strongly advise a fluid and filter change every 60,000 miles. If you are retailing a vehicle approaching this mileage without documented gearbox servicing, budget for this to prevent costly mechatronic or torque converter failures.
Yes, the Quattro all-wheel-drive system is highly sensitive to rolling radius variations. Tyres must be replaced in pairs across an axle, ideally in sets of four. Tread depth differences exceeding 3mm between front and rear axles can cause centre differential wind-up, leading to expensive drivetrain damage.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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