Hi all, I have just changed my turbo on my car, it is a 2006 model on 112000miles. The car was using excessive oil with oil in pipes, intercooler and so forth. I have had problems with the breather pipe to the turbo where oil was being pulled from crank ventilation unit, i fitted a new o ring (due to bad seal)and this cured the problem especially with revving past 3000rpm and smokiness.The turbo was leaking but didnt lack alot of power so suspected seals were gone. I have changed the oil, cleaned the sump, inspected oil strainer, checked oil delivery and return from turbo. Intercooler has been flushed and cleared, changed oil and filter (oil was black) this is 2nd oil change in a month, only filled to 75% as recommended somewhere. I have heavy carbon build up on the 3rd fuel injector to which I have the seal kit to fit with deburring equipment for seating so this is next job along with air filter to fit. Also checked Dpf for oil build up and amazingly found filter had been removed by previous owner (I wondered why pollution light was not coming on with the amount of smoke billowing out the exhaust). I have a suspicion I may have overfilled oil, but carbonisation within the engine has not helped with oil flow and lubrication. Has anyone had similar issues, have you managed to overcome the problem?