I do not see it in your picture but I just had to replace the fuel line from the output of the fuel filter in my 86 560SL. http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=21V0I9EQT2AO1DS9RW&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1988&product=E5000-74190&application=000543241

Get a good look at it for rusted bolts. Look at #143 also to see if they need to be replaced. I got lucky and it all came apart after using PB Blaster. It is a very smelly messy job. You will spill gas so be careful.