It's not a breather, it's your PVC valve. It's sticking out of a valve cover with three hoses attached. Two of the hoses are heater hoses, that have a pipe wrapped around the valve body. It's heated by coolant. They often can be removed and cleaned with carb cleaner.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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