I just picked up my dream car, 1986 300SDL, 180K miles, grey with black interior - yeah!

It has a number of gremlins - the question for now is: the recirculating air valve attached to the turbo (137b) is not connected to the vacuum transducer (Y31). The transducer had just an open hose on the "out" fitting.

I would have connected it to the air valve, but there is no fitting on it as is shown in the diagram. This diagram is for the 87, so I'm assuming its the same for my 86.

There is a fitting off the side of the air valve that connects somewhere else on the turbo/exhaust (and does not appear to be the right type of connection for the air valve in any case).

Is this some sort of modification? Should I just plug the "out" fitting on the transducer? To what effect?

thanks!

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