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Mk1 Dash Heater Switches - Mk2 Dash

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The Ford Mondeo hit our roads in 1993, and has consistently been a sales success. Now on its 4th incarnation, it remains a drivers favourite.
For more information, visit the Ford Mondeo forum on, the definitive resource site covering all Fords from the present day to the 1970's.

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Ford Model: Mondeo
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Mk1 Dash Heater Switches - Mk2 Dash

Heated Windscreen

Mk1 Wires -> Mk2 Wires

White -> Brown/White 2 Black -> Black Purple/Blue -> Purple/Yellow Purple/White -> White/Blue Black -> Black

Basically that's how it's wired, there are 3 black wires coming out of the Mk1 for the windscreen heater, and 3 on the otherside for the rear window heater. Join them ALL together, but you have got to have ALL black wires joined together.

On the back of the Mk2 front/rear switch, you have 2 black wires running from each switch. Join them ALL together,

You should end up with 6 black wires on the Mk1 joined together, and 4 on the Mk2 switch joined together. Also remember that you have to have car running for the windscreen heater switch to work and light up orange. Also if you turn the lights on, the lights on the switch should light up.

Rear Window

Mk1 Wires -> Mk2 Wires

Blue/White -> Purple/White Brown/White -> Purple/Blue Purple/Yellow -> White Black -> Black 2 Black -> Black

This worked for me, but I'm not responsible for anything if you want to try it...