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Old 12-11-2009, 10:37 PM   #6
mp333
Registered User
 
Join Date: Nov 2009
Location: EastCoast
Posts: 323
My Ride: 2003 325XI
Quote:
Originally Posted by devin_name View Post
Yes I have searched...

I have a 2004 325i. I noticed that when the temperature drops below about 35 that my car idles at about 900 rpms. Completely steady... doesn't drop or surge... just a steady 900 rpm. As soon as the temperature warms up it will drop back down to the 600 range which is where it normally idles at. Doesn't matter how long I drive it or let it warm up... seems to be completely dependent on outside teperature. Is this normal? Or should I be concerned?

It's funny. I noticed that tonight as well. Car running @ 900RPM in the cold weather. However I did notice couple times that when you turn the heater off manually the RPM drops. No idea why?
You may want to see if yours does the same.

M


It definitely has to do with the cold weather. I have noticed the rpm aound 800-900 when cold. After the engines warmed up it drops to 600rpm.

Last edited by mp333; 12-17-2009 at 11:06 PM. Reason: update
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