Hi All,
I'm looking for the truth on the turbo whine/police siren noise that can start to happen on the 2.0 TDI (140) engine. Basically my car is doing it and I've read/been told a few different things. Some of them contradict each other too, which is even more confusing! The car has no loss of power, still drives perfectly normally etc. The noise comes in around 1100-2000rpm and I've had two people ask me now 'is that your car making that police siren noise?'.
So these are the things I've read/heard:
1) The turbo is knackered, it's about to blow up, get a new one.
2) The noise can be heard on some cars from new, don't worry about it.
3) The noise can start if you use incorrect/non-longlife oil
4) Even if I change the turbo the noise will come back within a few months because it's got something to do with wear rates, and when it's 'bedded in' it will whine
5) The noise is normal and it's the variable veins kicking in at lower revs.
6) The noise is related to resonance on the downpipe
These are things I've found on the internet, and I'm even more confused than I was before! The car is under warranty and I'm thinking I could just leave it and see how it goes if I can't get an definitive info.
Any help would be appreciated.
Cheers
I'm looking for the truth on the turbo whine/police siren noise that can start to happen on the 2.0 TDI (140) engine. Basically my car is doing it and I've read/been told a few different things. Some of them contradict each other too, which is even more confusing! The car has no loss of power, still drives perfectly normally etc. The noise comes in around 1100-2000rpm and I've had two people ask me now 'is that your car making that police siren noise?'.
So these are the things I've read/heard:
1) The turbo is knackered, it's about to blow up, get a new one.
2) The noise can be heard on some cars from new, don't worry about it.
3) The noise can start if you use incorrect/non-longlife oil
4) Even if I change the turbo the noise will come back within a few months because it's got something to do with wear rates, and when it's 'bedded in' it will whine
5) The noise is normal and it's the variable veins kicking in at lower revs.
6) The noise is related to resonance on the downpipe
These are things I've found on the internet, and I'm even more confused than I was before! The car is under warranty and I'm thinking I could just leave it and see how it goes if I can't get an definitive info.
Any help would be appreciated.
Cheers