Bimmerfest - BMW Forums - View Single Post - Check coolant light, coolant is tad low, but "bobber is full up
View Single Post
Old 11-15-2010, 04:34 PM
540iman's Avatar
540iman 540iman is offline
resident, old fart
Location: N.W. Indiana
Join Date: Sep 2008
Posts: 1,873
Mein Auto: 2002 540i sport
Bled thoroughly when I did the valley pan gasket. Have driven the car for 6-8 months w/o a hitch. Drove 11 hours to SC and shortly after arriving I start getting Low coolant alarms. Remember, the float is ALWAYS above the neck when hot, cold, whatever. It is free as heck. Push bobber down and it pops right back up readily. I add coolant just to stop looking at the warning. I can see coolant way at the bottom, but then why does error clear for a month after I add some? Electrically, it seems to be working, but maybe top of float has seperated from bottom part. Some say when you cap, the float will get sucked down into the reservoir??? I don't see any way to take apart and inspect. Can float assembly be removed from reservoir and if

Thanks Blue.
Reply With Quote