Over the weekend I managed to fit in some time to start going through my 540i and cleaning things up, Removed all the basic electronic parts, like the CCM, LKM, Instrument cluster, OBC unit and air con unit to resolder any of the larger connections that could fatigue over time, as well as replace any electrolytic capacitors, these things plague a lot of electronics. I've replaced thousands for Lexus/Toyotas like Soarers (Soarer Surgeon is my business) so I'll apply that same approach for restoring the E34. I've already found the BMW Audio 1994 spec Sony headunit wasn't working right with channel loss, upon taking it apart I found leaky capacitors with some PCB damage so I'll replace the lot later this week and repair where required.
Otherwise I've removed the center console parts to scrub with a soft nail brush and hand soap, finished off with some warm water to remove the soap, these trims being white clean up so well, a real joy to see, they didn't seem dirty but the before and after is apparent, particularly the handles to the door cards, they get filthy! The rear right drivers door card required some repairs too, typical BMW glue failures so sorted that out and clean it all up. I also applied some black felt tape between the upper trim and wood trim where there is a gap showing the white trim, I've noticed this on some E34s and it isn't a very good look. I'll do the same on all 4 doors in due course.
With the console out the wood gear shifter trim needs some polishing to take the dullness and scratches out, still more work to do but it's looking considerably better, the backing glue had also totally failed so I'll sort that out when it goes back together.
I've also started on the leather, the front e-brake and belt buckle leather boots have been individually cleaned and conditioned, looking much better and feeling supple. Will have to do a few passes on the seats themselves, I did the fronts last week and they have cleaned up well but will require a few treatments until I'm happy with them.
I'm still waiting for the remainder of my order of service parts to arrive so I can get stuck into the car this month. Most bits are already here though, my parts bin is just about full!