Heating/Cooling issue with 2000 328i

00dude · 12-10-2009, 06:02 PM

I have a 2000 BMW 328i. It's been running really cold in wintertime temperatures (40 degrees) or lower and especially on the highway so I decided to replace the thermostat. I started my car up today after the replacement and noticed the temperature gauge climbed to the middle in about 5 minutes. That's a definite improvement. What's troubling is I get no heat from the vents when the car is warm. I did before I changed the thermostat. Any ideas on what I can do?

Jeron · Jeron's Garage

It is almost certainly air in the system. You need to continue to fill and bleed the system with the heater set to high.

00dude · 12-11-2009, 10:18 AM

Thank you. I will try that today and post the results.

00dude · 12-11-2009, 01:25 PM

That did the trick! I got heat pouring out of those vents now. Thanks again!

Jeron · Jeron's Garage

Glad it worked. That is by far the most common cooling issue.

gaber33 · 01-01-2010, 10:37 AM

2000 BMW 328i blows out cold air out of heater, and coolant residue is
blow into the interior and on to inside of window. when i turn the car off
it is lugging like a desiel truck. i have had therm, heater core check and there
alright. please help, totally stumped????