It does appear that there are no detailed wiring diagrams available for the M3W, the same situation with the maintenance manuals. It does make you wonder just how the dealers manage to do any work on these cars without this basic information. I have only ever seen some information leaflets for various tasks on the M3W and if these manuals do exist I find it difficult to believe that at least some of the information would not find it's way into, "the wrong hands". Maybe MMC have a better security system than most governments? Nice to think that they may excel at something.
Sorry this doesn't help you ajsms999. Check the wire loom for chaffed insulation, it is very prone to this and disturbing the wires may have shorted something. I recently found broken wires under the sleeving at the boot lid hinge for the rear sidelights that were intermittently shorting and blowing the fuse.
