Yousay you are getting a "backfire" via the exhaust under load which again points to an ignition spark issue as unburnt fuel is pushed down the exhaust to be ignited in the hot exhaust causing a bang/pop. Ignition coil issues tend to just show as a "misfire" when the car is plugged into a code reader.
Whenfound in 2005-2008 Audi A4 and A6 with BKH 3.2L FSI engines: Some vehicles may have a vacuum solenoid valve (N335 or V63) located under the air filter housing. Failure of this solenoid or the vacuum lines may cause insufficient vacuum and cause P2006, P2007 and P2070 fault codes. TSB 24-08-76, 01-14-76 or TPI 2019485 has some information
Accordingto Car Problem Zoo, a site that collates owners’ feedback, the most commonly reported problem with the Audi A4 is due to its airbags. Throughout its AudiModel:: A3 S Line Quattro. Audi Year: 2016. Posted January 24, 2021. There used to be an issue with Skoda Octavias a while back with the geometry settings causing the rear tyres to quickly feather on the inside edges causing a droning noise. We had this on our VRS and it sounded like a failing wheel bearing.
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Asyou can probably guess I have taken delivery of a brand new Audi A3 1.5 35 TFSI (petrol) company car and I have similar issues to the ones mentioned in this thread. The car was built & registered last month (June 2019). I've spent the last 4 years driving an Audi A4 2.0 diesel which I loved and my wife drives an Audi A1 petrol so we love Audi's!
Asmall and simple test to check your PCV or breather-valve for internal leaking. When the membrane in the PCV unit rips the symptoms can be: rough idle, hes
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audi a4 1.4 tfsi engine problems