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?

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??

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 :D

hope that helps bud i just did mine :D

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 :D

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

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.

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.

Easy?
Can u get me some info please?
Thanks

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.

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:wink:

Cold beer is a must remember that!