108.012 12 0484800 - ignition switch

[flacollect]

After weeks of searching and testing. I've come up with a bad connection on the ignition switch on my 1967 250S -- 6 cyl -- 4 door ..with AIR ..vin --108.012 12 0484800 -- I know this is a big job. Is there some detailed instructions on here that I could use? or does anyone know how to do it? Thank you advance. Dave K.

1967 Mercedes 250 S - First Benz 2 weeks old.