Simple DIY? '95 E300D fuel leak
 

On the back of the primary fuel filter are two plastic lines with clips that go down underneath the intake to the injection pump. I have leaks where they attach to the pump.

Is that a simple changeout or does the intake have to come off? Can I use any fuel lines as replacement or do I need lines from MB?

Thanks!

Disconnect your wind sheild washer bottle and get it out of the way. That will give you enough room to work.

You need the lines from MB, or to repalce the metric o-rings. The lines do get brittle and yellowed with age so I would repalce the assembly rather than o-rings personally. I would also do ALL of them as the seal on the others will fail at some point too. All of them cost somewhere around $100 total. Call Phil.

The white horseshoe clips on the fuel lines are pushed tightly closed to spread the shoulders of the clip on the fuel lines for removal.

Actually, am not certain if your 95 has the same clips the 96-99 has.

Here is the diagram and part numbers for the two layouts used.

http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=124131&M=606%2E910&GA=722%2E435&GM=717%2E433&CT=M&cat=19T&SID=07&SGR=120&SGN=04

You'll find different opinions on this, but I agree with TMAllison - do all the lines - but I also disagree in that I would go ahead and remove the intake manifold. It is so much easier to do the job with it out of the way. Note as TM says, the new lines WILL have the white plastic horseshoe clip thingy, that clip is pressed in to REMOVE the fuel lines, not install them.

I love my car, but these blasted plasted fuel lines are a PITA. They just don't last more than about 4 years or so.

Rgds,
Chris W.
'95 E300D, 219K

I just bought all the fuel lines and some o-ring and copper seals from MB in San Diego and it cost me less than $60 total. The guy at the counter said that a lot of people are replaycing those lines often.
:cool:

Yep, common problem...been there done that :)

Just got through doing mine and it was much easier with the intake removed, be aware the intake bolts closest to the fire wall can be difficult (they are Torx). Order a new intake manifold gasket and O-rings when you order the lines, and don't forget to mark the vacuum lines when you remove them. You might consider replacement of the fuel return lines that are on the injectors while you are doing this. If you are going to have the car down for a few days, you could check the glow plugs too. It is just some food for thought. You could do a lot while the intake is removed.