Hi again Guys,Well I finally got a new C/H Temp Sensor on eBay for £25 (New). I have now got the Haynes w/s Manual for my 2006 TDCi Mondeo also, however the manual was of little help on this (typical)
Anyway, I got stuck-in and here's the route I took should this be useful for future reference to anyone suffering the same problems I had. So here goes,
Firstly, I removed the cover over the pump pulley on the right hand side of the Cylinder Head which revealed the location of the sensor which was in a very tight working area. The manual said I needed to remove this pully to facilitate changing the sensor, yeh right
However this pulley had convenient slots in it so you could pass a socket drive through to access the sensor.
Next, came the problem of the wire attached preventing the use of a normal socket wrench
(a spanner was of no use either as the sensor is recessed) So I found an old 15mm socket and cut a slot to about 3/4 of the way down with a thin disc cutter to allow the wire to exit the side of the socket. I next had to stab the starter a few times to get the window slot in the pulley in just the right position, after disconnecting the plug connector I then carefully turned the sensor about a quarter of a turn at a time until the cable started to jam against the c/h, then by releasing and re-positioning the socket I was able to free and finally remove the sensor.
Finally, I fitted the new sensor in position and did the reverse procedure to tighten it,
(It doesn't need much torque, about 6ft/lb only is recommended). I reconnected the plug and started the engine and voila, the engine warning light went out. So I took it for a test drive and found no further problems. I also had full turbo power again
(no more limp mode) 
. Job done and all in under one hour !
I hope this saga was not too boring, but I thought the procedure will be of some use to other FOC members.
My best regards to all,
Bob.
