Hamish:

The OVP is a small relay buried down next to the 2 visible relays. You should see a finned aluminum box with a major cable that runs parallel to the firewall. Closer to the firewall are the 2 relays you probably see - one of them closest to the firewall should say "klima" on top. right next to that and towards the center of the car, and buried a little lower than the other 2 relays is the OVP relay. If you assume the top of this page is the firewall and the bottom of the page is the battery, the right edge of the page is the engine and the left edge of the page is the fender, then the whole arrangement looks like this _:' where the _ is the computer, the : are the 2 relays, and the ' is the OVP relay.

__________________
John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

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