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This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 05-17-2012, 08:42 PM   #1
Registered User
Join Date: Jun 2009
Location: OlyPen in the PAC NW
Posts: 187
My Ride: 2000 323i
Overheating after about thirty minutes of driving.

my car started overheating the other day so i checked for leaks and didn't see any. I let it cool down then drove it to a nearby friends and it overheated again so i shut it off and coasted to where i could pull over. This time steam was coming from a broken expansion tank cap. I got it towed home and replaced that and bled it then test drove it. everything was fine but after about thirty minutes it started to heat up again. I let it cool down then drove it home with no problems. When i got home i let it cool down over night then bled it again and more air came out so i thought i found the problem and tested it again and again after about thirty minutes it over heated. I let it cool down and drove it home and let it cool over night and bled it again but this time there was no air. I can see the thermostat opening with my temp needle and i don't see any leaks anywhere and its still full of coolant. I'm wondering if any of you guys think this could be a blown head gasket or, of not that, what you think it is.
Stupid f**king plastic parts!
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coolant, head gasket, over heat, overheating

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