PCV system / vapor recirculation fault
Often reportedThe crankcase ventilation system (PCV/SFI valve) can become clogged or fail, causing excessive pressure or vacuum in the circuit, leading to oil consumption, leaks, or rough running.
Engine Bay
When buying a used Audi A6 2.0 TFSI 2014 (C7), the most frequently mentioned issue is: PCV system / vapor recirculation fault. Additionally, Timing Chain Tensioner Wear or Failure is also commonly reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
The crankcase ventilation system (PCV/SFI valve) can become clogged or fail, causing excessive pressure or vacuum in the circuit, leading to oil consumption, leaks, or rough running.
Engine Bay
Metallic noises and misfires when cold are reported, caused by wear or failure of the timing chain tensioner. If the tensioner fails, the chain can slip, posing a risk of serious engine damage (piston/valve collision).
Timing chain
In some 2.0 TFSI engines, turbo abnormalities, power loss, or unusual noises are reported due to failures in the turbo housing, bearings, or control components (wastegate).
Turbo
Same trim, different year
We only publish claims we can verify. Cards come from Difetti fault records matched to this vehicle on brand, fuel, engine and generation.