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Mercedes-Benz E-Class Diesels

570 messages,  Last post on Sep 06, 2009 at 6:25 PM

You are in the Mercedes-Benz E-Class Forum. Your Hosts are pat & karens

What is this discussion about? Mercedes-Benz E-Class, Biodiesel, Diesel, Sedan


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#505 of 570
jreece101@comcast.net by james66
Apr 03, 2007 (6:30 am)
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Just turned 40000 miles on my e320 cdi. While in for a oil change mechanic noticed a fuel leak in the fuel line.
I was told the line must be replaced. Anyone had this problem.
#506 of 570
New diesel causes hose leaks? by nimhrod
Apr 03, 2007 (6:40 am)
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Replying to: james66 (Apr 03, 2007 6:30 am)

I had the same thing happen on mine recently. I smelled it long before I finally took it in. They said that the new diesel is causing some of the hoses/lines to dissolve. Nice, huh? I asked why they don't replace them all and they said the factory only authorizes replacement if they are actively leaking. Makes sense to me. That way they can really dip into the owners pockets after the factory warranty runs out.
#507 of 570
- by dudleyr
Apr 06, 2007 (11:05 am)
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That is a design defect. I would insist on free replacement. A leaking fuel line is very serious and mercedes should be going out of their way to keep the customer happy (so they won't sue).
#508 of 570
New diesel causes hose leaks? by nimhrod
Apr 06, 2007 (2:43 pm)
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Replying to: nimhrod (Apr 03, 2007 6:40 am)

I suggested the same thing. Their response was the it was not a design defect because, at the time of manufacture, the fuel currently in use was compatible with the MB fuel system. Now that the formulation has changed it's eating up the fuel lines & hoses. But this is not their problem until it fails. In other words, HOPE YOUR SYSTEM FAILS BEFORE THE WARRANTY ENDS!
#509 of 570
... Blue Tec & EGR ??? by roland3
May 17, 2007 (11:11 am)
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... just wondering if Blue Tec got rid of EGR, the urea saturated traps handle about 80 percent of NOx; was just in the local MB dealer, I think they thought I'am from Mars, but they were very polite. The one brochure they gave me mentioned the particulate and the urea but no mention of EGR.
#510 of 570
Re: ... Blue Tec & EGR ??? [roland3] by roland3
May 18, 2007 (7:33 am)
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Replying to: roland3 (May 17, 2007 11:11 am)

... The DC site has quite a bit of info on the Blue Tec. It is designed to pass Euro V, without EGR and Mercedes points out several pitfalls of EGR.
#511 of 570
This may sound like an old by marsha7
May 18, 2007 (4:18 pm)
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concept, but I believe it was not so long ago that diesel vehicles had a drain spigot to drain the water attracted by the hydrophilic diesel fuel...is this true, and, if it is, do those drain spigots still exist on current diesel vehicles like the 320 CDI????????????????
#512 of 570
Re: New diesel causes hose leaks? [nimhrod] by chander
May 19, 2007 (4:21 am)
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Replying to: nimhrod (Apr 06, 2007 2:43 pm)

I am in the market looking to buy a bluetec car, do these also develop a hose leaks??, Should I stay away??
#513 of 570
New diesel causes hose leaks? [chander] by nimhrod
May 19, 2007 (5:17 am)
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Replying to: chander (May 19, 2007 4:21 am)

First, I can tell you from first hand experience that this is an amazing vehicle. Style, power, economy- an unusual combination.
 
The mechanic told me that the '05's were not built with the new diesel fuel formulation in mind. And he'd seen, as a mechanic there a pattern of leaky hoses once the owner switched to the new fuel. I would THINK that MB would have made any necessary changes to their fuel lines and other rubber-based fuel touching parts to ensure that they were resistant. But then that's common sense...
 
Second word of advice- as much as I love this car- be SURE to consider buying the extended warranty. I've tried to buy one (Mercedes) now that I have 47,000 miles, but forget it. Too pricey. Much cheaper to buy when new. And you don't have to buy it from the selling dealer. They often think they've "got you" when you buy it new and that you'll just add it on to the total. Price it out from other MB dealers online. I've been told there's BIG differences in price. I'm buying a JM&A ext warr.. Not the same as a MB warranty, but the next best thing and big savings.
 
A service writer told me that you usually don't need EW's on newer cars, but MB is different. Not because they are not dependable, but because they are so expensive on repairs. He said to replace a/c condenser on this car is over $2,000. That's almost the cost of the EW.
 
Hope I didn't scare you off.
 
D
#514 of 570
Re: This may sound like an old [marsha7] by roland3
May 19, 2007 (9:46 pm)
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Replying to: marsha7 (May 18, 2007 4:18 pm)

... Marsha, I don't believe Diesel fuel is any more hydroscopic than gasoline. There are many types of aftermarket and OEM seperation systems. Most of the problem is a low fuel level and condensation on the walls of the tank; especially in high humidity conditions, and long settings. Many fuel filters are availiable as an unidentical twin with a drain on the bottom, with maybe a one digit change in the part #.
.

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