Replacing the E30 Heater Core and Valve

[DCColegrove]

Quick Tip:

Take the drivers seat out...

Only takes about 2 minutes and will save you the spinal convolutions of cramming your self in the footwell.

[Money$hit]

Upon taking the old core out, it doesnt appear to leak, at least when I fill it with water and hold it there. Nothing drips.

Does it need to be under pressure of a running motor and hot coolant to reveal a leak? My windows were greasy/foggy even a day or two after I cleaned them, this means I needed a new/non leaking heater core right?

[Money$hit]

I would amend the original post to include a Torx T15 screwdriver, because my core was definately screwed in using torx bolts.

[E30 Cabrio]

Thanks for the write-up. I haven't had to do mine yet, but it's nice to know that it's not a nightmare job like on most cars.

[nefarious7907]

Did you lube the O rings with some oil before you installed them? If one of the O rings didnt seat just so you are bound to have another leak, but you need to find out what exactly is leaking. If its the core itself I would return it or exchange it

[red]

I pulled out my heatercore and outlet pipe, the inlet pipe was attached to something and I couldnt get it out. But its still fawking leaking after a few days!


What the hell!???!

[Court M3]

probably from the firewall connections. Did you drain the fluid?

[japspecvr6]

Pulled the hearter core out and its still leaking......This shit it driving me Nuts....

[japspecvr6]

im gonna need this....

[nefarious7907]

Thats an interesting contraption

[StereoInstaller1]

You would really want to have one of these and a screwgun of some sort


Like this

[red]

I updated it, but I would still like to get a few more pictures in there, sorry guys this has taken all winter

thanks alot man! this really helps me out.

[Court M3]

yeah ask me how I know :-x Can't even finish up and test because no one carries these around here. Have to wait to get them from dealer tomorrow.

and wouldn't you know there are only 33 of them in the country right now and BMW did not ship any packages today :( Waiting to see if they get them tomorrow

[Court M3]

Good call on the superglue Courtney - I'd forgotten I'd smeared some RTV on them & around the joint, just to play it safe.

Thanks for jogging my memory - maybe that'll help someone else.

yeah ask me how I know :-x Can't even finish up and test because no one carries these around here. Have to wait to get them from dealer tomorrow.

[LINUS]

Good call on the superglue Courtney - I'd forgotten I'd smeared some RTV on them & around the joint, just to play it safe.

Thanks for jogging my memory - maybe that'll help someone else.