Hello Leidensgenossen! After towing a dozen times I have now self-built the Tecshift 6 gear transmission, without any problems to lower the engine, switch off the control panel, unscrew the gear and pull away to the outside. Before the out, the clutch slipped! ( Opelwerkstatt said clutch was defective!) Pressure plate unscrewed, pull-off disc OK – normal wear after 123000km rear bearing OK! Pressure cylinder tight everything was dust dry, no metallic abrasion etc. What now?? A m 06.01 workshop heated and this acuator control center disassembled , nothing special found The problem of this circuit was always lack of clutch pressure , At highway jam stop and go came the problems , 6 times switched , then the clutch no longer separated and I had to strangle the engine with foot brake . Turn off engine , restart sometimes helped , the error disappeared from the display , but at the next stop the same story from the front . The clutch encoder consists of a plastic cylinder with plastic lines , I’m not sure but the low hydraulic pressure could come from here . Sometimes were also very loud switching noises from 1 gear to Neutral , then N appeared and then the gear jumped to level 2 , repress was necessary , then came gear error , Automatic then no longer works . In the workshop then always the same error was read out and deleted ( Safe money but no error fix . Now I build everything around on manual gearbox , the Fzg is t now scrap value , not even Russians want to buy the box. New Tecshift gearbox 6 gear costs approx. 4900 + VAT The control center completely costs approx., 1800 + VAT work Opelwerkstatt workshop ?????? ( Well that’s what I do myself ! ) The repair exceeds the residual value of the car my details are verifiable at any time What now ?? There is only one alternative , conversion to manual 6 gear manual Mech transmission is cheaper , Rep. is cheaper , replacement no problem , sale value i st higher !! etc…… Unfortunately I have to suck a lot from the bones, there are no technical rep instructions for this conversion I also have to change the wire harness and control unit , cockpit I do not know yet , it does a lot of work but now even more ! Who is interested in my experiences can contact me 08727 / 7180 MFG Montiserv