Thanks all, does seem it's turbo seals then cause there is lots of oil in intercooler/ RFR pipes etc, I haven't checked breather filter as yet, mainly because I'm still struggling to find it , is it a big job to do turbo seals or is it a new turbo I'm looking at ?
Many great full thanks to all

Thank you for that I'm now going to check that

Hi my x5 suddenly started smoking white/ blue smoke from exhaust as if burning oil, the smoke was so bad cars behind had to stop, ive looked online and people are saying it's the crankcase breather valve, or possibly that, trouble is all the videos I've watched on this don't seem to be the engine I ...