How do I bypass my heater core on a 1995 318i bmw,it has three plastic prongs on the fire wall an the first o. Broke so I tried to put the hose as far back as I can an now it over heats ways wrong

Your heater core has been bypassed.

You have to take the hoses off the heater core at the fire wall and just put a u on thim to connect the two hoses

yes there is a special tool to remove u can probly buy at your local auto parts store

Remove the 2 hoses going into the heater core and use a flush tee to bypass the core.don't forget to refill and BLEED the cooling system.

If the copper/metal hose broke free from the heater core, the heater core will need to be removed and replaced. let me know what size engine and I can send you the removal procedures. Big job!!

the heater core is located under the dash board on the passenger side there is a few cap screws holding this black plastic box that hides the heater core loosen all the screws .take the plastic out of the way and u will see the heater core .there are two hoses to disconnect on the out side .under the hood on the passenger side .up near the fire wall .the re is a avaperation tank silver in color for the a/c under that there are two heater hoses to disconnect .when u remove the two hoses .they will leak antifreeze .bend the hoses over to kink them .tie some elec tape around them to keep them from leaking .go back in the car and loosen the four small screws that hold the heater core in place and remove .....in stall the new one the same way .taking care when putting the new one through the fire wall not to damage the brass tubing ...mount heater core first the place hoses on after the screws are holding the heater core in place then put plastic cover on start car and wait for thermostat to open .turn heater on hot .after water is circulating .refill radaitor ...job done...

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Here is a link for you if you want to replace the heater core your self with common tools. As for the heater hose, you should see two small radiator hose going to the fire wall. You can disconnect the hose from the fire wall and connect them together, this will by pass the heater core till you replace the bad core. Good luck and keep me posted, be glad to know your expedition is running 100% again.

take the inlet hose to the heater core and connect it with the outlet hose on the heater core, thus creating a by-pass. you may be able to follow the hoses back to the aterpump and engine block and make a shorter run of it.

it's your heater core lines. the 2 lines that come out of the fire wall on the passenger side under the hood.

there should be two bolts on the inside holding it into place or it could be your heater core that they belong to . I have seen them bolted to the inner fire wall .