E46Fanatics - View Single Post - Heater up to 80 deg + idling = Expansion Tank Failure??
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Old 12-06-2012, 06:26 PM   #12
OEM ///Member
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 23,212
My Ride: 330CiC, M5, X5, E93

Assuming you compress the vapor pressure and close up the molecular bond/spacing with these crazy pressures.

30 PSI & a 10 year old expansion tank = red temp gauge.

Be curious to check the 10 year old expansion tank cap that has never likely opened to see if the cap is even any good?

I hear that there is a 1 Bar replacement for the newer BMW's that most parts departments hand out, be curious what the part number is?

Here is the cure for the E46/E39 6 cylinder cooling systems!

Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299

Last edited by jfoj; 12-06-2012 at 06:26 PM.
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