Dear Mr. JimSmith:

According to M.B.DOC, the connector for the cruise control speed signal is actually for the crankshaft pick-up unit, which is not available on most 240D's. It's only used for special equipments to perform crankshaft speed comparisons or for 240D's which are
equipped with a tachometer. So my car may actually be missing nothing for that connector.

Best regards,

Eric