The one from the breather hose goes somewhere under the air cleaner (can't remember where without taking it off- fuel distributer possibly?)- mine is blue because it got brittle and snapped and I had to splice it.

There are 2 lines at the tensioner area and route underneath the distributor cap area at the front of the engine. One I think comes from the inlet manifold and goes to a junction at the washer bottle, and the other previously discussed one from the exhaust manifold 'meets' this one (but doesn't join it) and gets routed alongside it (as above) to another junction by the washer bottle.

I've taken a couple more pics of the lines, so hopefully this'll help with your plumbing!

Attached Thumbnails

   

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys