Temp gauge you mean, but yeah il be swapping that and thermostat will certainly be next in line.
its 53 plate and a remap is definitely on the cards in he near future.
Yeah temp gauge doh!!
Clean out the EGR whilst you got the bonnet open and look for oily residue around the boost pipes. If there is residue I would replace the seals. Also check the condition of the lugs on the boost pipes as they wear down over time
