Hi I'm having a couple of problems with my 2006 2.7sport, the engine coolant temperature gauge on the dash doesn't work, it's just sat at the bottom and never moves. Also I've noticed that when accelerating more noticeably at lower revs it makes a noise and the revs surge up and down maybe 100rpm. I've tried cleaning the maf sensor, the throttle body and I've also blanked the egrs both problems were existent before I did this though. Thanks in advance luke

Welcome to the forum.

Failed EOT or ECT sensor.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thanks after some research I belive the juddering revs to be the 'cattle grid effect! Torque converter

Could be, though a failed EOT/ECT sensor can certainly cause hunting and a rough/erratic idle.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Translation please, nothing coming up in the search. EOT = ? Thanks, D

ENGINE OIL TEMOPERATE - sensor in sump
engine temperate sensor - front of engine grey

Thanks Bud mine running bit cool although god knows it's cold down here in Cornwall. D

maybe your auxiliary heater aka FBH isn't running ?

It exhaust out the front passenger wheel arch