Overheating

Golgade · Post by **Golgade** » Fri Jan 23, 2009 12:01 pm

Hello,
Wow its been a long time since I posted last, I like changes. I am back to driving my 530i again, until this morning when it started overheating. First time it has ever done this, and it was in 30 degree weather. It went straight from cold to almost red in 10minutes. I shut it off and when I opened up the hood it was I think smoking at the belts, but it could of been steam, im not sure. And when I drove it home (after being pulled over for 45 mins) it kind of smelled like I wood fire, but come to think of it it kind of smelled like that yesterday and before it got hot this morning. So, im trying figure out whats wrong, and any good tests that dont involve ripping into it just yet, which im sure I will be with a new water pump or themostat. Any tips?
Dan Lafley
77 530i
95 530i

Mike W. · Post by **Mike W.** » Sat Jan 24, 2009 2:03 am

Dan, wow, it has been a while since you posted, good to see you.

The only thoughts I have are possibly a seized water pump or alternator. I had a water pump seize on another brand many years ago and it smoked the fan belt in nothing short. It didn't smell like wood, but it was definitely smoked and caused the engine to overheat. But start with the basics, fill it with water, start it up and watch it.

Karl in KS · Post by **Karl in KS** » Sat Jan 24, 2009 9:56 pm

Like Mike said, start it with the hood open and see if all the pulleys are turning. Or you might try turning it over by hand first...

1st 5er · Post by **1st 5er** » Sun Jan 25, 2009 12:14 pm

Weird, a wood smell?
I agree, sounds like something seized up.
What's the coolant level like?
What is the condition of the belts?
Definitely start it with the hood up and visually inspect for abnormalities that are easily detected.