

& that was after scraping some of the crud off

Best not to undo this screw on the bottom (like I did


It's basically clipped in all the way around. I tried to gently lever it off with a screwdriver, but ended up breaking the outer lip in a couple of places as it was a bit brittle, as you can see in the pics.
I cleaned out the crud & cleaned the contacts, terminals, etc, dried it out (twas a bit damp where the deposits were sat), resoldered the coil wires & tested it, all hunky dory, so clipped the lid back on & sealed the edge with some self amalgamating tape with insulating tape over the top - there is a seal all around the edge where the lid sits, but wanted a bit of belt & braces



Tested it again in situ, all ok, job done

Hopefully this may help peeps to see it is just a basic relay, not much to go wrong with it & if they're not working, chances are it's fixable, rather than spending a fortune on a new Mazda relay.
If you do need to replace it for some reason, pretty much any 70 amp relay should do the trick as used in this thread - http://www.igmaynard.co.uk/bongo/forum/ ... plug+relay