328i 1996 auto overheating?

Hi New member here,
My car was driving fine this morning been no leeks at all, topped up radiator as it was a little low, drove couple miles down the road and it started to over heat. When checking, the radiator was cold and the engine was hot, Can anyone please help

hi,
It could be a few things, It could just be air in the system... try this procedure for bleeding...

1.Jack the front of the vehicle up onto stands as high as possible,
2.Turn the ignition on,engine off,heater on fan setting 1 and temperature fully hot,
3.Remove the rad cap/expansion cap,remove the bleed screw from the rad and IF you have them the bleed screw(s) from the thermostat housing/top hose, return pipe or thermostat.
4.Fill the radiator up and keep pouring till there are no more air bubbles coming out from the bleeds, when good then install bleeds and tighten down(don't snap them),ensure the rubber O-rings/seals are still on the screws/on the bleed holes.
5.Replace the cap and then start the car. Run her up and check for heat from the vents when warm and check if over heating still persists.
6.If good then check the water level again in the morning when cool.

If this doesnt help then the chances are, either the thermostat is faulty, or the plastic impeller on the waterpump has failed... nowadays they are sold with a metal impeller, which actually last... Be careful if it is overheating... you could easily cook the headgasket and warp the cylinder head..


hope this helps...

Sorry to say but good luck with it.