What is/was broken on your E53 today?

[311evo]

Last week I fixed all my windows/locks/security by cleaning the contacts on the door harness.

Today I replaced the front pads and rotors...They were in terrible shape. One side already had the set screw broken off. I ended up using the lug bolts + drilled out the plastic cap from some tea bottles to keep the rotor in place until the calipers/pads were fitted.

Waiting to do the rears until I get my new suspension bits in, needs a total overhaul in the rear.

Now my Yellow exclamation light is on. This also happened after I fixed my door harness, but went away. It's staying on after doing the front brakes, I'm guessing the computer is confused as now one brake sensor is working and the other is still tripped. Otherwise... Any other thoughts on this?

I also noticed a little platic switch connected to a front suspension arm. Maybe height control? The fastener to the arm was looking rough. That could be an issue too..