discoveryktm
Member
hi , hope someone might be able to help , i have a 300 disco that just keeps over heating . first time it happened i was towing a large trailer with a 109 on it , all was ok till after about 30 miles the temp went high and the boiled over , the car has covered 205k but i have just serviced it , new oil filters and belts , my first thought was head gasket but this has been done and the prob was still there so i removed the stat which made some improvement , it now can be driven with no probs but as a test i slowly speed up and as soon as you hit 75mph up goes the temp again then if you slow down the gauge drops again , water is nice and clean no leaks and the heater works fine , have removed the rad, again clean and unbloked the thing that i have noticed that the small fins on the rad are all shot and if you touch them they just fall out , may be its this i dont know and dont want to buy another rad if this ones ok, the car has larger tyres a lift kit and a winch fitted which does block the grill a bit . any ideas would be good thanks andy:doh: