Hey Guys and Gals:

Replaced the heater core in the ole S70 thinking that was the leak under my mat and I was wrong. After replacement, still leaking and now I'm seeing it's where the hoses come through the firewall. The coolant just ran down the aluminum tube and made it look like it was leaking at the core. I don't think the rigid aluminum tubes leading into the heater core are broken or cracked. I'm thinking it's the connection where they come through the firewall. Do the inserts that come through the firewall snap into something? Or do I have to change out the rigid tubes with the heater core attachment? Never had a leak through the firewall before so this one is a new one to me. I also can't find where to buy them if I had to replace them. Thanks in advance.

Henry