Hello, after the first problem now comes the second: the control chain , differently as with other car ́s this must be changed at Opel already after about 60,000 km , at least with me , the car tackert in idling without end. In various ranges was spoken of special tool , a tool is camshaft fixation like Opel special tool KM954, can someone send me the exact drawing with dimension !? Further there are in the net various providers of a control chain ( rep -Set ) The individual parts and prices go far apart here e.g. : – Scope of delivery: Control chain (endless) Guide rail Chain tensioner – Chain version Chain closed for 76,00€ 1xControl chain 1xGuide rail 1xGuide rail top 1xGuide rail for tensioner 1xChain tensioner 1xSeal for control chain housing 1xVentil cover seal 1xOil pump sealing ring 1xSeal for water pump for 118,50€ as much as until now white you need the seals then the time offer is the better choice, or !? Unfortunately, you can’t say what quality the chain is (where can you do that already). What should you pay attention to when buying ? Does someone happen to have a rep guide as PDF for me , would be really great !? Mfg Aggi