do i need to partly drain the rad to change the header tank??
ta, martin

 

no...!!!

Just remove the hoses of the tank and try to keep the hoses/pipes pointing upwards to stop coolant leakage..!

There is one underneath, one from the turbo to header tank, then from header tank to rad and one overflow hose to the overflow tank.

Then just fit new tank and replace hoses and fill back up slowly to aviod air locks...!!!

Dan