Omega B – Y22XE – VDD?

Good evening friends. The Omega B Bj 2001 from my brother-in-law has a problem with the VDD. When I looked at the engine compartment today, I looked like a pig into the clockwork. I have already changed seals – indeed at BMW and not at Opel – but I am a bit confused with the model. 1. The lid can not only be held by the 10 screws? 2 I assume that the bar has to be folded out to the left. Is there any trick in this one? feeling that the plastic is already breaking if I just look at it wrong. 3 is there something “hidden” that I should pay attention to there? Although my brother-in-law has a “So wird’s wird’s” book, but none found any clues about the VDD. Do you have a few tips on how to do it best? Greetings