A6 C7
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Which Audi A6 C7 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Audi A6 C7 engine is the most reliable?
3.0 TFSI supercharged 300hp (CGWB / CGWD) — Maint. Sensitive verdict. The supercharged 3.0 TFSI V6 at 300 hp in the A6 C7. Strong and smooth; the bills come from plastic coolant parts — the thermostat housing and water pump housing crack or weep — and the thermostat sits under the supercharger, so it comes off for the job. A failed supercharger isolator rattles like marbles and, if ignored, can damage the supercharger. Early 2012–2013 cars also show chain-tensioner reports.
Which Audi A6 C7 engines should you avoid?
None of the Audi A6 C7 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Audi A6 C7 problems?
The most commonly reported problems across all Audi A6 C7 generations and engines: Supercharger isolator, Oil consumption (pistons/rings), Multitronic 0AW (front drive), Water pump and thermostat housing leaks, Timing chain tensioner (early cars).