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Photo Diy Of Fuel Filter Change

198K views 112 replies 70 participants last post by  OldTimerW210  
#1 ·
Greetings all.

Since I recently had to change out my '98 E320 Fuel Filter, I thought I would share it (photographically) so you can see it's not a difficult job, even for a novice mechanic like myself. I claim no expertise, and am just following the WIS procedure.

Enjoy, and comments are always appreciated!
 

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#5 ·
fuel lines clamp is nice to have.
 
#7 ·
will420
According to my EPC (I took excerpts for you, comparing my E320 to the E420).
It actually looks much easier, as your fuel pump is back at the fuel tank, and there is only ONE fuel line going IN, and only ONE going out.

Just jack her up, pull off 3 bolts, and you'll have your answer!

Sorry my photo editer won't do GIF files, otherwise I would point things out for you.

Let me know if it's not clear, and I'll be happy to assist.
 

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#9 ·
3 questions:

1. what is WIS you are talking about?

2. Does gas spill out when you disconnect the hoses?

3. the yellow font in the middle 2 pics is hard to see..


Thanks again !! This looks easy, I will definitly do this myself next spring.
 
#10 ·
Answers:

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.

2. The photo you can't read (sorry!!!) fuel line clamps are placed on the FRONT two lines which are the "IN" lines (one from gas tank, one from fuel pump). The
"EXIT" lines are not under any pressure, so +/- if you want to clamp them.

3. SORRY!
 
#16 · (Edited)
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.
 
#17 ·
Cannot get the my 98 E320 to start...

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.

Thanks very much,
 
#18 ·
G-AMG said:
Answers:

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?

Thanks,
 
#19 ·
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.
 
#20 ·
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.

http://www.hazet.de/video/VEN15.mpg
 
#23 ·
G-AMG said:
You're incorrect. I picked the car up in Sindelfingen, and no person has worked on the car, other than me. They ARE the original clamps.

Per my '99 S420 pictorial, the CLIC clamps ARE used.
Good job G-AMG! Perfect post. Looks easy enough, I'll try to do that myself.

I wonder if you have the same photo session for spark plugs change :) That operation is $500 at dillership :( I understand it's 12 spark plugs but really shouldn't cost that much!

And question about e-bay link was nice, if you could give it. :D

Thanks again. And nice collection of Mercedes' you have.

Nick
E320 2000
 
#24 ·
1998 E320 Wagon a wee bit different...

I wonder if this is a time of year manufacture kind of thing. I followed the Pictorials a write ups. Imagine my surprise when I drop the cover and see no fuel pump! Also, see how the filter is held in place. It felt as if the holder was a neoprene type of material. No bother really. Not having the fuel pump in next to the filter made it easier to get at.

Just a few notes:

1. I could not find fuel line clamps at the autoparts-a-rama. I used the "Quick Grips" trigger style clamp to clamp off the line. They have soft plastic pads on the tips. Worked like a charm.

2. I used a Bosch filter from AutohausAZ.com
 

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#26 ·
Chris,

One word of caution. The Link you are showing is NOT for Mercedes. The pliers shown are the 798-"2". I bought those, and they DON"T WORK ON THE E-KLASS!!! They are the "fixed jaw" model, and won't fit because of the proximity of the clamp to the filter.

You need THIS model, the 798-"3". It has movable jaws. See attached pic. It is on the '98 E320. First is "opening" the clamp, the second is closing.
 

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