as the title i have just had my mk4 gsi in garage and it had the following problem
smoking on idle no oil loss and only smoking on idle. I had my friend follow me and there was no smoke on boost.
So let garage strip engine down and they have done the following.
Re honed bores
new rings sized and fitted
new big end bearings
new head gasket
new cambelt kit
new stem seals
Pistons de choked.
I have run the engine in as recommended by accelerating using different gears and building up throttle and revs for the last 150 miles. Soon will be having another oil and filter change.
But the thing is still smoking exactly same as before. I have recently fitted a new boost gauge and its boosting as it should on standard map holding 0.5 bar 1st and 2nd and 0.6 after.
Surely if it was turbo seals then it would smoke on boost not only on idle and i would notice some oil usage. So im pretty stumped and need to ring garage tomoz but anybody got any other ideas? Blocked breather 1way valve etc?