@DocSnydor
You are right, the frame and can are almost exactly the same (my father has a 1Z). However, the plastic tray really becomes annoying over time because you have to remove it for even the smallest tasks. This bothers me the most because I don't have a pit or lift. I only have small ramps to get the vehicle a little higher in the front

. But now, after the heating up on the track, I would say that the VTG is working noticeably better again (the question is, for how long), and the turbo misfires are also almost gone

.
By the way: I went to the mechanic today for an X-ray of the ESDs (Electronic Stability Devices), and he told me that they haven't done that in a long time, but instead just replace them completely. He only referred me to the Bosch service center, which still does that (thankfully

).
Regards,
Arnold.