A friend of my dads has a J reg (i think) Disco. It's a 2.5 Tdi. He has for the last few months had a problem with it overheating. Symptoms are, go for a long drive on motorway, everything is ok, pull off motorway, stop for a few mins, pull away again and within a few minutes it overheats. The temp gauge goes right of the red end apparently!. So far it has had:
The engine stripped 3 times (I assume the headgasket has been done as well) The head has been crack tested New piston or pistons fitted (probably after the first time it happened) Radiator and heater matrix have been flushed. All hoses checked No visable signs of water etc on chassis.
Anyone else with a Disco experianced this?. Is there anything else I/he can look at. When the thing does overheat there is no water at all left in the system.
Dom J