AGU....when cold getting thick white smoke from exhaust then stops after getting warm or start driving or after leaving for a while
Sounds like turbo seals... I had this problem last year and it turned out to be the turbo. Might be worth taking off the TIP and checking the turbo for play
losing coolant from the flange on side of block being done on weekend and turbo is good only fitted in sept after rebuild hasnt done it past few days... whole reason for rebuild as engine was siezed so took engine out my a3 which had blown turbo and replaced with rebuilt one