Basically the catalytic converter was full of sh*t and exhaust gaz come back in to the engine and make blow the turbo, only at 20 000 km, after 3 hard month of work for changing by our self, flywheel die. And before that the steering pump died for no reason, and 1weeks after we get it the turbo already got a problem so the stupid opel mechanics just put off a sensor. Oh yeah and we've got to change the alternator because he was underpowered. We never bought an opel again.