Try
http://shrubbery.student.utwente.nl/
This is Johan and Seans E32 site and has a lot of text and picures for 7 series fixes. The door lock solenoid support bracket/s are prone to crack and this site has a fix,. I had to have miysupport bracket welded and as they are made of pot metal it was not easy as the bracket would rather melt than weld together.