2007 Vw Golf GTTDI 170 5 door. After recently having the Cambelt & water pump done and a full service the car is smoking (bluish) quite heavily after the engine gets up to temperature. Definitely not excess oil burning off and not over filled with oil as had been checked over and driven enough to rule that out. Have been advised potentially the turbo seals are worn? Car still starts and drives well. No MOT as would fail on emissions test. Full service history boasting 3 Cambelt/water pump renews. Recent new battery, good tread on tyres, Racinging line air intake, DPF & EGR delete with software update and basic map. Original tail lights and air intake will be sold with vehicle.