Hello. I had to install a new clutch on my 106 S1. I also changed the transmission oil. Instead of the original PUG oil I took the same specification (GL5 75W80) from Liqui Moly. Since then the gearbox has been hooked up. Let’s say: The gears can’t be inserted completely, even during the ride. Especially when switching down, they only snapped in when you let the clutch come, which is of course for a corresponding noise background sor gt (“Greeting from the Gertiebe”). Facts: A LUK coupling was built. Clutch separates and closes exemplary. Pedal path is correct. Switching rods is smooth as always. Oil level is right. Gear is sitting together with sleeves cleanly on the block, so nothing tensed. The transmission was evaporated with cleanly sealed holes (sic!), no water penetrated, but I turned it over (without putting it on levers or shafts). Except oil change and Simmerrings (gear input shaft and Ant) nothing else was done. I can’t imagine it could be due to the “wrong” oil. Until yesterday the part switched off without any problem. Does anyone have any idea about this?