Perhaps he meant return line? I just bought a meter of the return line from Phil here and patched the line that needed it. Some of the injectors further in the back around the linkage can be a real PITA.

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1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42