how do i change the water pump on my y.reg astra 1.6cd?

dont think it will be the water pump.look if there is enough coolant in the header tank,top up with anti freeze rather than water.there may be an air blockage in the cooling pipes system or your radiator may be blocked.if your thermostat is faulty and does not open this will cause over heating are you sure its ok.i recommend getting a haynes manual ,there is one for your car.try halfords.

xs11
March 2010