You have to give some more infomration on this. Is this the charcoal canister that is used for filtering air, or the one that is a part of the fuel injection? Just to be clear, I'm guessing it's the second one for fuel injection, and if it is, that's very strange because only vapours are supposed to get in there unless they are condensing somewhere along the way, or the passage is cloged.

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1985 190E 2.3L - a constant project.