THIS IS GREAT info as I the dealership just told em I need to replace mine very soon. I may just have to try it myself seeing this. I have a 01 E320 4M. I am not a big, or even really a small, mechanic but this is something that appears to be easy enough to do. THANKS
Thanks for the photo guide. I'm getting an error on my E420 (P0173) so I think I'm going to try the fuel filter route first. Thanks again. You have restored my faith in the internet!
Just understand that the photos show replacement hose clamps that are not the ones installed at the factory.
Those installed at the factory are not always reusable, so be sure to have some new clamps if you think this might be a first-time change or if you think a dealership may have done the previous change using MB parts.
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Kent Christensen
Albuquerque
'07 GL320CDI, '06 E320CDI
I have changed the fuel filter as it was showen in this thread (thank you very much) but still won't start. It cranks but no luck. Any ideas on what else I should be looking for? I know this is a broad question but I thought that perhaps somebody had similar experience or better experties.
1. WIS (Werk Informacion System) is the "Electronic Manual" for DB. They literally have the shop manuals for every model from 1960 something, all the way until now, including Maybach, Dumptrucks, buses, etc. Its what Mercedes techs use. They are readily available on Ebay. Instead of having the '07 models, the Ebay discs are great, and don't cost the $1,000 the dealer wants. They run around $25 USD. They are huge, 8 GIGS. Also available on Ebay is EPC (electronic parts catalogue), just like the excerpts shown above. Again, they have every part, for every car, every year you can imagine, again, 6 GIGS, and also run about $25.
Could you show a link to the $25 manul on EBay? Are they pirated copies?
thanx G-AMG. very nice. your protocol was really helpful. for my 97 E320 the only difference was that the fuel filter had only one entry port instead of two like shown in the pics. also i might add before changing the fuel filter let the car cool down for a few hours so there is no pressure, cuz if there is a little pressure it might spray a little gasoline, and if the gasoline touches any hot exhaust parts, it can be a little trouble.
The photo labeled "here is the new filter installed" shows at the fuel pump in the background the type of hose clamps originally installed at the fuel filter, too.
The screw-type clamps shown on the filter hoses are NOT OE clamps, but are replacements.
Here is a movie showing how to deal with the OE clamps, which are officially known as CLIC clamps.
Thanks G-Amg, This should be added to the sticky index! 
Linear Mode
