My 1.8tdci 2007 focus c-max overheats when pulling my caravan up steep hills (normal hills okay). If I pull up the bigger hills gently, say 30 mph in third using hardly any throttle, no problems. Rest of time, hitched up or solo, no problems at all. Now the thing is, I have never ever heard the cooling fan working, except with A/C engaged, and then only very slowly. If I open the bonnet at the end of a run with caravan on, top and bottom hoses are extremely hot, but absolutely no fan and gauge is sat at half way as per normal. Caravan is about 1100kg.
There isn't a temperature sensor in the rad, all done by engine management by a sensor on the cylinder head. The fan cuts in through 4 stages.
Tuesday, July 9th, 2019 AT 1:04 PM