1991 190 2.6

There is a water hose that runs off the back of the engine and into the firewall. The hose has a hole and is leaking water. Where does it go into the firewall and what is the procedure to replace the hose?

It seems easy to reach at the back of the engine. I am just wondering about how far it goes into the firewall and what I have to remove in order to get to that area?

Thanks,

Blair

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Blair
1983 300D-T
Black