[e90islove]

Bought this car the other day from a realtor that owned it for two years and used the car to travel for work, dude claims he replaced damn near everything under the hood including the water pump, thermostat, and radiator. was in a front end accident in January and has sat in his driveway since. Well long story short the car started overheating and i was on the side of the road with almost complete loss of power and coolant draining everywhere. get the hose back on the return for the radiator, get more coolant and go to bleed the system but I cant hear the pump turning on nor does it look like the coolant is moving in the expansion tank. when the car is turned on however, the coolant will start burbling a little bit before it start rising and eventually spills out. cant drive it more than a quarter mile without it overheating, really any suggestions or ideas would be appreciated

[Silnismo]

Sounds like the water pump and thermostat, would get those looked at again.

Literally the same symptoms I had when mine failed, don't drive it anymore and get it towed to avoid any further damage to the engine.

[Gln22]

In times like this first look again and again on your water pump and radiator

[nsjames]

if the pump is ran dry it may be damaged.

BMW is very specific about not allowing these pumps to run dry or it will damage the impeller. The coolant lubricates it.

are you trying to run the coolant bleed procedure without a battery charger attached?
because that generally doesn't work out well. it's a high amp draw for 8-10 minutes.

[e90islove]

I got the pump working now and it seems to be running strong, the pin connector into the pump was completely corroded and was able to rewire another plug on and she runs good now just a lot of mother fn codes

[LRokosky]

Hi,

This isn't entirely related to the issue above, but I have an issue with my car overheating. I have read that it is likely the water pump or thermostat, but I have also read that these components usually give a check engine light and fault codes. I scanned my car and got no codes. I also don't have a check engine light. I checked for leaks, but don't see any noticeable ones.

Let me know if you have any ideas

Thanks

[E92_William]

Originally Posted by LRokosky

Hi,

This isn't entirely related to the issue above, but I have an issue with my car overheating. I have read that it is likely the water pump or thermostat, but I have also read that these components usually give a check engine light and fault codes. I scanned my car and got no codes. I also don't have a check engine light. I checked for leaks, but don't see any noticeable ones.

Let me know if you have any ideas

Thanks

What did you scan with? A generic Autozone scanner won't see a water pump code.

[LRokosky]

Ok,

It was just a generic scanner. I think I am going to go ahead and replace the water pump. I know that it is a common issue so it won't do any harm, and it has a good chance of fixing the problem

[Luis561]

Originally Posted by E92_William

What did you scan with? A generic Autozone scanner won't see a water pump code.

It will since he said his wires were corroded which means it thinks the water pump isn't there. I got a cel once when I forgot to plug my water pump back in once after messing around down there lol