[paraplan]

OP, I'm replacing bearing ledges using your excellent DIY, but have a concern about the step that is supposed to depress valve springs to ease up the tension from the cams. You have posted a video from Bimmer Tool Rental explaining the workaround, however that seems to be applicable to a different motor. Top part of N54 bearing ledge does not give you any access to the cam, you cannot rotate it with a wrench to release spring tension. In the end, how important is doing all that? Does it affect the torque when bearing ledges are put back? Also, the repair manual says to use 6 piece special tool 11 8 553 to secure lower and upper parts of bearing ledge. Is that essential too?
I'd appreciate if people, who have gone through the pain of removing/installing bearing ledges with cams elaborate a little more on this step.