Misfiring (hesitation) - ignition coils/injectors
Often reportedIn vehicles with the 1.4 TFSI engine, misfires are reported due to faulty ignition coils or injector issues.
Engine Bay
When buying a used 2017 Audi Q3 1.4 TFSI (8U / facelift), the most commonly reported issue is: Misfiring (hesitation) - ignition coils/injectors. Also, carbon buildup on intake valves in direct injection engines is frequently reported.
Engine varies by trim; verify the engine code on the listing.
Listed from most frequently reported, each with its source.
In vehicles with the 1.4 TFSI engine, misfires are reported due to faulty ignition coils or injector issues.
Engine Bay
The 1.4 TFSI direct injection engine is prone to carbon buildup on intake valves; this can cause idle fluctuation, delayed throttle response, and gradual performance loss.
Engine Internal
The 1.4 TFSI engine may exhibit higher than expected oil consumption or minor leaks from gaskets/seals, requiring oil top-ups between services.
Engine Internal
In the 1.4 TFSI EA211 engine, timing system issues can occur: pulleys/tensioners may wear or fail, causing chain slack. Symptoms include metallic noises from the front of the engine (especially when cold) and rough running.
Timing chain
In the 1.4 TFSI engine, isolated cases of wastegate actuator breakage or failure, or oil leaks around the turbocharger are reported.
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.