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Old 05-08-2010, 06:09 PM   #1
XxKEITHxX
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Default Heater Core Problem?

My mechanic says that my heater core is broken. But from what I understand is that when a heater core is broken the coolant leaks into the car, but my coolant is leaking from middle under the car. is this common too?
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Old 05-08-2010, 06:44 PM   #2
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Soo my mechanic says its not the heating core, but there is a plastic thing cracked behind the engine and thats where the coolant is leaking from. Any clue wat that might be??
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Old 05-08-2010, 06:45 PM   #3
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not your heater core if is leaking into your engine bay. Off the fire wall you will see two plastic pipes coming off the wall (heater core lines) over time they get old and crack and break, i just did mine was easy as heck to do.

http://www.realoem.com/bmw/showparts...63&hg=64&fg=15

part number 6
Connector 64118391141 $35.13

comes off with one 10mm and put new one on with grommets an viola

hope that helps bud i just did mine
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Old 05-08-2010, 06:46 PM   #4
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Keith i am local to you in Anaheim (not too far) ask him to bypass the heater core come to my house and i will do it for u
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Old 05-08-2010, 08:59 PM   #5
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Sounds like it might be the "Y" fitting.


http://www.318ti.org/forum/showthread.php?t=16068
http://www.318ti.org/forum/showthread.php?t=18066


MAKE SURE YOUR MECHANIC BLEEDS THE SYSTEM PROPERLY(or do it yourself BEFORE you drive the car)
http://www.318ti.org/forum/showthread.php?t=27983

Last edited by cooljess76; 05-08-2010 at 09:03 PM.
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Old 05-09-2010, 12:03 AM   #6
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By the way, a leaking heater core also can leak from the middle of the car. The reason is that there is a drain from the heater box to the bottom of the car above the transmission. Depending of the year of your car, you may or may not have the plastic y-fitting. 95 ti's don't have it, but later years do. There is another twin pipe plastic fitting which leads to your heater core.
Looks like this:
http://www.realoem.com/bmw/showparts...63&hg=64&fg=15
If it turns out to be the heater core, thank your lucky stars it's a ti. A Dash-ectomy is not required to replace it.
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Old 10-20-2010, 08:16 AM   #7
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does anyone know the part number to the 2 hoses that run from the firewall (from heater core) to the valves? I am installing the new heater core, but I dont think i have the 2 hoses since the previous owner bypassed the broken heater core. thanks.
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Old 05-16-2012, 04:54 PM   #8
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Quote:
Originally Posted by eurohb View Post
not your heater core if is leaking into your engine bay. Off the fire wall you will see two plastic pipes coming off the wall (heater core lines) over time they get old and crack and break, i just did mine was easy as heck to do.

http://www.realoem.com/bmw/showparts...63&hg=64&fg=15

part number 6
Connector 64118391141 $35.13

comes off with one 10mm and put new one on with grommets an viola

hope that helps bud i just did mine
Easy?
Can u get me some info please?
Thanks
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Old 05-16-2012, 05:07 PM   #9
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Remove the cover from the side near the firewall, disconnect the lines for the coolant. Remove two bolts, pull y pipe off, put new pipe, reconnect pipe fill some coolant have a beer.
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Old 05-16-2012, 05:29 PM   #10
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It's not the "Y" connector, that's located on the back of the cylinder head on '96 and newer models(but I think he knows what you meant). Before you crack that beer and claim victory, BE SURE TO PROPERLY BLEED THE COOLING SYSTEM
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Old 05-17-2012, 04:42 AM   #11
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Cold beer is a must remember that!
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