bobmcduk

Thanks for the fantastically helpful reply, I'm not around for the next week but will use the info you've given me to run some tests, when I'm back.

Hi, I've got a problem with my 2005 Citroen Relay 2.8 HDI water temperature gauge on the dash board, it always shows cold, even when the engine is warm and the heaters are pumping out warm air. As part of the diagnostics I am trying to locate the temperature sensor on the engine but have currently been unable to find it, do you have any idea where it is? Thanks in advance. Bob