I assume by "does not start" , you mean does not crank over ...

http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=21H0MN3YU22C0YGWFW&year=1995&make=MB&model=E-320-004&category=J&part=Neutral+Safety+Switch

Replace it...common complaint.

I would do the shift bushing at the same time...

http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=21H0MN3YU22C0YL13F&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1995&product=J4070-44817&application=002613918