Rocker Switches
 

The Hazard warning switch on my 411 S3 has given up the ghost...any idea where to source a replacement? Are they standard Lucas items?

Have you tried taking it apart and fixing it? They are quite straightforward, if a little fiddly, to disassemble and clean up the internal contacts, just don't loose any of the bits inside.

I had to do this on quite a few of these on my 412 and all worked well after doing this. I cleaned everything thoroughly and I used one of those fibreglass pencils where there had been some arcing between brass contacts. There is a similar problem on the window switches on the likes of Swedish cars from the 1970s and I have repaired quite a few of these and they always worked afterwards. I remember using a smear of electrical conductive grease on some switches.

Most have small springs and a ball bearing, so this is good advice. Take them apart carefully!

George