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I recently replaced most of the fuel hoses (including the return lines
routed between the injectors) on 87 300SDL. Most are original and
some are still in good shape. It is a preventive maintenance.
I wouldn't think this is required for cars less than 10 years old, but
it's your option.
<p>BTW, there are other rubber parts needing replacement when they age
(about the same rate as fuel hose). For example, tranny cooler hoses,
fuel hoses at bottom of tank (mine were much worse than the hoses in engine
bay. don't know why?). Both can let you stranded. Many
more are in the suspension system which may not be critical but still annoying.
<blockquote TYPE=CITE>It's a rubber hose that becomes brittle with the
time and the temperature.
<br>Puncture may leave you stranded on the road. The part is $2-3 at the
<br>and the replacement on my Passat TDI took 10 minutes. On the MB is
<br>much the same. Yours is turbo and the air intake is routed differently
<br>makes the replacement easier than on mine where the intake goes above
<br>injector cover and needs to be removed. Shouldn't take more than 30-45
<br>but I'm looking for some advice to avoid pitfalls and make it easier.
<br>> > My 1997 E300 Diesel needs new fuel return lines. Does anybody know
<br>> > of disassembly/assembly? Do I need to take off the air intake and
<br>> > plastic cover or something else needs to be done. Looks like a
<br>> > right? Any info would be appreciated.
<br>> > Thanks
<br>> > D.