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Engine Temperature Gauge Misbehaving

kekec1024
kekec1024
in Ford S-Max Club

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I have a strange problem with a temperature gauge.

It rarely shows the right temperature. The needle stays at 0 and it rarely climbs up, when it does (usually that happens on a motorway at above 120km/h speed) it climbs to a normal position and stays there until I brake.

My first thought was thermostat but it passed the boiling water in a cup test. Cooling fans seem to do their job to.

If I turn the heater to 30°C it blows hot air.

Does anybody knows the location of a cooling water temperature sensor on 1.8TDCI (125PS)?

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    sounds like a problem with the temp sender unit or its wiring.

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    Is there a way I can check this at home?

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    Is there a way I can check this at home?

    needs diagnostics to check it best have it looked at

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