New S2 Avant Nothelle N300 owner

[Tractor Dave]

It doesn't take much... When it gets full boost, about 4k......

I checked all the hoses and they are still firmly attached. I did a boost leak test before (thanks Newsh) and it was good. I wonder if the Nothelle chip has anything to do with this? I'm still running standard ABY turbo right now but will be changing over when run in to my hybrid. I've been doing some reading here and will check all the other possibilities tomorrow.

[LHD_Kid]

It doesn't take much... When it gets full boost, about 4k......

[Tractor Dave]

Does sound like a boost leak if it goes OK under part throttle, ie, revs without boost...

Ok. I will have a look. Maybe something has popped off. I didn't notice any issues on the way up but was a bit more adventurous on the way home

[LHD_Kid]

Does sound like a boost leak if it goes OK under part throttle, ie, revs without boost...

[Tractor Dave]

I’ve been for a nice long drive. Up to see Trist and chat about S2’s (as you do).
The wheel bearing issue is now all fixed and no play whatsoever. Very pleased about that.
But this car seems to throw a new challenge just as you think you are done. First of all, during the first 20 miles the petrol gauge dropped rapidly, then the petrol light came on. I stopped and filled up but could only get 40 litres in. Since then it’s behaving normally. I’ve done about 200 miles today and now it says I have about half a tank left.
Then, I thought I would slowly build the revs up. Up to about 5k no issues. But if I floor it (WOT) the engine starts cutting out at 4K revs. Everything else seems ok and I did rev up to about 6k on 3/4 throttle with no cut out at all. Any suggestions?

A pic from the Brecon area.



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[Tractor Dave]

I thought someone have machined something like a mm off the hub the use it with different bearing or etc.
Like someone had machined only one of my S2 avant rear hub for unkwon reasons.

Who knows?


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[M2ki]

I thought someone have machined something like a mm off the hub the use it with different bearing or etc.
Like someone had machined only one of my S2 avant rear hub for unkwon reasons.

[Vorsprung durch Technik]

Excellent news you got the hub and bearing sorted.

[newsh]

Those digital verniers are utter bolox
You rarely get the same measurement twice.
A proper vernier doesn’t use a battery

I have a decent micrometer but it’s not metric

[Error404]

You need a decent micrometer to measure accurately.
Even a Mitutoyo vernier is only accurate to around 0.02-0.03mm
With a bearing that is twice the tolerance on the fit

[Tractor Dave]

Christmas cracker . Aldi crap actually

[Tractor Dave]

You can't measure a bearing fit accurately enough with a good vernier, let alone one out of a Christmas cracker

I expect I can tell you the problem though - counterfeit parts from Autodoc.
I had the exact same problem recently with a pair of FAG wheel bearings from them, as well as a fake Reinz headgasket
Will make it more public when I have time. I will never buy again from those *****. :corey:

You are spot on there Alex. My VAG mechanic said he didn't have anything accurate enough to take a meaningful measurement of the hub and we were wasting our time trying. He said the hub just wasn't pre loading the bearing sufficiently.
The first wheel bearing came from Autodoc (they wanted me to pay to post it back - I told them where to go!). The second one came from Mr Auto (they took it back no problem). The third one (now fitted) came direct from SKF. My VAG man ordered one from TPS to compare. They were identical. Apparently £10k worth of fake SKF bearings were destroyed by trading standards recently. Even the guy from SKF wasn't able to distinguish them from the genuine article without opening up the bearing to inspect the internals. What I have now is working so I'm happy.
I've deleted my Autodoc app and will never use them again. I have several boxes of parts from them that don't fit my car and its not worth paying to post them back to Germany.

[Greg_S]

Nice work Tractor Dave Looks like the new tool was a worthwhile investment

[Error404]

You can't measure a bearing fit accurately enough with a good vernier, let alone one out of a Christmas cracker

I expect I can tell you the problem though - counterfeit parts from Autodoc.
I had the exact same problem recently with a pair of FAG wheel bearings from them, as well as a fake Reinz headgasket
Will make it more public when I have time. I will never buy again from those *****. :corey:

[M2ki]

Really weird, looks totally normal and measurements seem ok.