Credov's researched list of the 2 faults the Audi A6 (C6) FWD is known for (2005–2008), 2 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: Pull away gently and firmly from rest, and watch for judder, flaring revs or a flashing gear display.
Why it matters: This early multitronic gearbox has a documented history of control-unit failures and complete breakdowns, and a full repair or replacement gearbox is one of the more expensive jobs on these cars. Front-wheel-drive models are the ones fitted with it, so confirming fluid history matters most here.
What to look for: Pull away gently and firmly from rest, and watch for judder, flaring revs or a flashing gear display.
Why it matters: This early multitronic gearbox has a documented history of control-unit failures and complete breakdowns, and a full repair or replacement gearbox is one of the more expensive jobs on these cars. Front-wheel-drive models are the ones fitted with it, so confirming fluid history matters most here.
Got a question about a Audi A6 (C6) FWD? 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.