E34N
06-25-2010, 08:47 PM
Basically, I was driving home from work and all of a sudden, the get the chime and the CEL saying "COOLANT TEMP". Quickly pulled into a business driveway out of the road and check it out.
I see some coolant under the car, but don't really see any obvious leaks under the hood. After some time, I notice the coolant is coming from the reservoir overflow hose (at least that what it looks like). I was in a suit and didn't really get into the engine.
I waited a about 30 minutes calling my shop to see if they can send their flat bed. No answer. I was about to call AAA to come and get it, but decided to drive a little down the road out of the driveway I was in (they were closing soon and they didn't have any street parking in front).
Low and behold, I was able to drive all the way to my house without the car overheating, which was only about 2-3 miles. The needle stayed just below 1/2 way.
There were signs prior to the overheating.. no smoke, no idling problems, nothing. I had just exited the freeway, so I was not idling for more than 1 minute.
I've obviously searched and read up on some threads. This one in particular seemed to be similar, although I did not have any smoke issues
http://forums.bimmerforums.com/forum/showthread.php?t=1480529&highlight=overheat
I recently replaced (< 1 month) the reservoir due to a crack, but never had overheating issues prior.
Just changed the oil and didn't see any milky mixture.
Thermostat changed less than 6 months ago.
I'm thinking the pump might be going, but obviously I wanted to check in with you guys to get some suggestions.
I see some coolant under the car, but don't really see any obvious leaks under the hood. After some time, I notice the coolant is coming from the reservoir overflow hose (at least that what it looks like). I was in a suit and didn't really get into the engine.
I waited a about 30 minutes calling my shop to see if they can send their flat bed. No answer. I was about to call AAA to come and get it, but decided to drive a little down the road out of the driveway I was in (they were closing soon and they didn't have any street parking in front).
Low and behold, I was able to drive all the way to my house without the car overheating, which was only about 2-3 miles. The needle stayed just below 1/2 way.
There were signs prior to the overheating.. no smoke, no idling problems, nothing. I had just exited the freeway, so I was not idling for more than 1 minute.
I've obviously searched and read up on some threads. This one in particular seemed to be similar, although I did not have any smoke issues
http://forums.bimmerforums.com/forum/showthread.php?t=1480529&highlight=overheat
I recently replaced (< 1 month) the reservoir due to a crack, but never had overheating issues prior.
Just changed the oil and didn't see any milky mixture.
Thermostat changed less than 6 months ago.
I'm thinking the pump might be going, but obviously I wanted to check in with you guys to get some suggestions.