That's pretty much how it goes, in the 2nd pic

Detaching the CA from the ball joint is simple in many cases. I usually put the breaker bar on the but, rotate it a little bit to break free the ball joint cone, then hold with the T40 and use two locked wrenches to undo the nut - cleaning the exposed threads helps a lot not to force too much. Then ...

Very possible and pretty common coolant leak on the turbo engine (non turbo doesn't have this hose on the thermostat housing). Worth looking at the coolant tank as well, underneath it as these may sometimes develop a small crack (disconnect the small sensor before lifting), at the small return hose ...

Perhaps leaking flex down pipe

I think one of the things is to have the hole is such way, so as not have the oil from the filter leaking onto the plate - this will cause the oil to run on the top of the plate and drip at some other place. Maybe look here

Agree, with an electric drill+socket, the plate is out in no time - we get used with removing it

As above, the SRS message is only because when the Climate control (CCM) was out with the battery still connected, the car network lost for a moment communication with the SRS system (all these are interconnected for some reason) and started to 'panic'. So no SRS functionality problem, only need to ...

I would try pulling the whole electronic module at the junkyard, the connector is a bit tricky, but worth a try. Perhaps if the year and the numbers match - also the STD vs DSTC. Don't have to disconnect the fluid lines, I think there's a video on youtube

As above. Once codes clear, see what's with the oil pressure message. Either the sensor, worn oil pump, or worse failed oil pan o-rings or clogged pick up mesh. With the actual kms, all but a sensor replacement would be a no go for me. If the oil pressure light doesn't return, I'd run it until it di...