Temp Gauge not working - which sensor to replace?

[Kernowel]

Hi

My temperature gauge has stopped working (since a coolant leak was fixed funnily enough). Any idea which sensor needs to be replaced, or is it both of them?

Sorry if this has already been asked. I did find a thread but the links were dead so I couldn't see which one
it was https://www.lushprojects.com/bongoparts ... no=.html#9

[gilly99]

Ontop the head at the front - Heat Gauge 18-510.

It's not the wet one half way down the block, buried behind the inlet manifold.

[g8dhe]

Its the one with a single Green wire at the front of the engine, location varies where on the front, diesel accessed from under drivers seat, petrol closer to the centre line as I recall.

[Kernowel]

Thanks both. Another stupid question:

Why are there two different part numbers for the Heat Gauge 18-510 on the index? Is one for the petrol and one for the diesel variant?
JE151851X and KL011851X

Many thanks
Mike

[g8dhe]

No, one feeds the dashboard display alone the single green wire and the other feeds the ECU engine temperature from the I suspect the oil in the crankshaft case.