overheating after changing oil cooler

[veluxsolutions]

Hi, I had oil in the coolant of my connect and have just changed the oil cooler, the heater doesnt blow hot air out and the engine over heats, does this mean there is an air lock or thermostat fault or nackered head/gasket.
Temperature is ok at standstill drive it round the block and it cooks up, stop with the engine still running and it goes back down!
Any help appriciated

[LUGGERS]

Hello mate sounds very much like you have a air lock. keep squezzing the hoses.

[coconut]

Pipes on the wrong way round on the oil cooler (cant remember if they can be fitted wrong )

Did you flush all the oily gunk out the engine/radiator/heater matrix etc

[veluxsolutions]

Thanks coconut, all sorted, just air in the pipes. I went out and had a look an hour ago and the expansion tank was empty. All good now!

[coconut]