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2012 Audi Q5 Premium 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire
Posted to European Driveability on 7/30/2025 6 Replies

This car has a rough running misfire (like it runs only on 2 cylinders) only on cold start and it lasts about 30-60 seconds, then runs well until it cools down again. We've done all the repairs stated below, but also smoke tested intake system and crankcas...

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car Vehicle Data

2012 Audi Q5 Premium

VIN WA1CFAFP1C
Engine2.0 L / 4 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / Direct Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Misfire
OccursCold
Open Help Request

car Vehicle Data

2012 Audi Q5 Premium

VIN WA1CFAFP1C
Engine2.0 L / 4 cyl / GAS
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / Direct Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Misfire
OccursCold