Bimmerfest - BMW Forums - View Single Post - No Cabin Heat
Thread: No Cabin Heat
View Single Post
Old 03-01-2012, 04:04 PM
SFbay SFbay is offline
Account Under Review
Location: SF
Join Date: Mar 2012
Posts: 893
Mein Auto: BMW 745i
Originally Posted by dablk1 View Post
Let me make sure I understand. The car has been sitting for 3 days. It's nice and cold. So I should remove the coolant cap and water should be peeing from the small hose that runs across the top of the radiator to the reservoir?? if not, then what...does that mean the pipe is leaking?
You're correct. Start the engine, open cap and watch. Well BMW manual says coolant system is self bleeding, so if after venting procedure heater is still cold it means you have a major leak. Well this all makes sense if your water pump is good. What year is your water pump and how may miles?

Last edited by SFbay; 03-01-2012 at 04:05 PM.
Reply With Quote