Spending another weekend trying to track down my hard hot start problem on my 1984 500SEC. Ready to install new injectors, seats and seals. Found what appears to be a weeping fuel hose directly above the rear axle and below the fuel tank. Small hose weeping is about three inches long.
Anyone know what kind of fuel line this is? Under pressure or return?

And what is the part that appears to be a filter or damper attached to the line? Thanks in advance. Dan

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