Credov's researched list of the 4 faults the Audi Q7 is known for (2006–2015), 4 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: Lie beside each rear wheel with a torch, check the bottom spring coil for a break, and look for a low corner.
Why it matters: A broken rear spring can damage the tyre it rests against and upsets the car's handling, and it can fail suddenly rather than giving much warning, so checking both rear springs directly is worth the minute it takes.
What to look for: At a cold start, listen from the back of the engine and under the car near the gearbox for a rattle.
Why it matters: A failed timing chain on this engine can destroy it outright, and because the chains are at the back of the engine the repair job means removing the engine or gearbox, making it one of the most expensive repairs on a Q7.
What to look for: Press the carpet in all footwells and under the driver's seat for damp, and test the MMI and camera.
Why it matters: Water reaching the amplifier, MMI or the battery area can cause expensive electrical failures, including the car not starting, so confirming the sunroof drains clear properly and the carpets are dry protects against a costly hidden fault.
What to look for: Read the oil level on the MMI screen, ask how often it needs topping up, and watch for blue smoke under load.
Why it matters: Heavy oil use on this engine is linked to misfires and eventual piston and bore damage, and the repair can mean a new set of pistons and rings or a replacement engine, both major costs.
Got a question about a Audi Q7? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.