BMW 320I OVERHEATING

Yeh thats what happens when the car is running and the needle in the middle, steam and small spittles of water does come out of the bleed hole and continues to come out and never ends basically, I would like to know what i should do with this leave it running until it ends ?.

Also the thermostat has been put in diagonally should i put it so that the bleed hole is pointing up.

Could any small pin holes in the pipes cause this.

Can too much water be an issue as it is way over the cold mark.

I know that when the thermostat is not in the car there is warm air coming out of the heaters when they are on.

But when it is in the heaters blow cold air and no warm air and then it overheats after about 3 miles or so but have noticed that when going up hill it cools.

The system has been bled and bled over and over again with no luck.

Could anyone please answer my questions i know there has been a lot but i am looking for a resolution to the problem i dont want to pay a garage £££££ for an airlock if it is that cos some garages will make it up for the £££££££.

cheers gents appreciate it.

The needle on mine only does just over the half way mark but never moves. I take it this is normal but I may be corrected.

Yeh fair enough you are right at some point things are gonna need mending even human beings break down for crying out loud then again its better that they all come along at once rather than one at a time.

Anyway I love the thing I dont think I will sell it until it gets to about 160k its at 103k at the mo so a long way to go.

Anyway I should have it all done by friday.

PS:- is there anywhere i can post pictures of it.

thanks.

Hi,

Thanks for your advice antonio I have the new thermostat and the new coupling it will be installed tomorrow and then i will go ahead and get a new waterpump as well.

I have not had a lot of luck with this car its great but since i bought it in march ive had the shocks, brakes, bumper (cos i broke it), door handle (interior), bleed screw, door panel fixed.

And now the thermostat, coupling and need a new tyre and need to fix one of the wipers cos i broke it tightening the screw too much but am gonna try and fix it if i can or get a new arm and lost ma left fog light cos it fell out.

So DOH! so far but the car itself as in driving experience has been beautiful and i still love it but jus had a bit of bad luck.

Oh well it can be fixed or should i off it what would you do in my shoes.

Can be almost 100% certain that the viscous coupling on the fan is not working correctly. When the air travelling through the radiator is at a certain temp the coupling stiffens up to drive the fan, when cooler it eases the grip, almost like a heat variable clutch. If, when the water is hot the fan will not shred a paper or you can stop the fan with it, the coupling is shot and a new one is required. If you have a plastic impeller on the pump then definately replace as they are prone to failure, usually at speed.

Rob

After looking through some of the replies I would deffo say get a new water pump with a metal impeller, although yours may look new it will not last long. For the sake of £31 is is worth a bill for £100's not for changing it while you change the thermostat, although it is your choice. I had a lot of problems around christmas with over heating and I ended up changing water pump thermostat, housing and seals, just for peace of mind and I know that mine will now be trouble free for a while. But its your choice.