I bought a 2000 reg Audi A3 sport 1.8T with 66k on the clock about 2 months ago. I’ve seen loads of threads about engine problems but can't seem to find one that matches my problem exactly so was wondering if I describe the problem will/can someone offer some advice in this matter?
Some days the car is faultless and runs perfectly but annoyingly other days the revs jump up and down when idling and when I drive approaching traffic lights etc in neutral the revs sometimes dip so low the engine cuts out. Also when it is playing up, during acceleration, there is a marked lack of power (feels like safe mode but turbo is still spinning and no engine management light on). My brother works in a garage and did a diagnostic on the car which revealed the following fault:
17608 P1200, RECIRCULATING VALVE FOR TURBOCHARGER - N249: Mechanical Malfunction.
As far as I’m aware, the car is 100% standard. a friend of mine had an octavia VRS and has driven my car saying it performs the same as his so I don’t suspect its had a remap or anything. I also removed coil packs 1 and 2 and they same new and they don’t come up during diagnostic so im thinking it cant be them?? Would I also be correct in thinking it cant be a torn diaphragm in the DV as if it was, the problem would be constant?
The garage fitted a new N249 Valve but the fault comes up again after a few minutes of the engine running. Does anybody think the sporadic problem that im having with my car is to do with this fault or could it be anything??? My brother said I can bring the car back but they don’t really have alot of experience with VAG engines so suggested that rather than them just changing a load of parts with possibly no result, I take my car to a VAG specialist who may know exactly what is causing this. The annoying thing is that it is not a permanent problem, it runs fine 1 week then badly the next? But before I take it to a VAG garage thought I would put this thread out and see what happens. It’s a great shame as other than that its a great car!
Any advice would be appreciated!! Cheers