Anyone kow what size of vacuum line I need to get to fit on the hard plastic vacuum line? Thanks.

Hugh Sr.

1984 190d (W201) 132,325

You are referring to the soft rubber black line? I don't have a W201, but generally these are 3.5mm lines.

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1979 300D 040 Black on Black - 1985 300D Maaco job (sadly sprayed over 199 Black Pearl Metallic) on Palamino

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