Here is the link to the pump... I do not believe it has the hose you talking about....

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1ZO1CNISH20116RI4I&year=1997&make=MB&model=E-420-002&category=M&part=P%2FS+Pump

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)