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2007 E320 75000 miles diesel leak

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Old Sep 12, 2011 | 01:43 AM
  #1  
lypdmd's Avatar
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From: Vancouver, WA
2007 E320 bluetec, 2009 ML320 Bluetec
Exclamation 2007 E320 75000 miles diesel leak

Just left restaurant with family tonight. The car wouldn't start right a way for 4 seconds. Kept chugging so I turn off key and turn on again and started right up. Could smell diesel in the cabin. No problem accelerating while entering freeway. The smell is mostly all gone while driving for next 20 minutes. Drove up on slight hilly road to garage and parked. Smoke started to come out under the hood. My family got out and immediately drove out of the garage. Puddle of diesel fuel on garage with a trail back down the driveway where the car sits at the curb. Popped the hood, took the engine cover off, the whole right side (driver side) of engine and engine cover soaked with fuel.

Just recently I changed all 6 glow plugs and 1 month later glow plug controller because CEL kept staying on. Its been 1 month since no CEL with no engine problems. I'm thinking fuel injector issues. Is this a DIY or stealership fix? Thanks in advance.

Pat
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Old Sep 12, 2011 | 03:43 AM
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Have a look around the fuel pump. Could be the seals. I would not drive it again until you have some idea of the problem.

Start the engine & have a good look around with a strong torch. Take a look from underneath the engine too. You may have to take the cover off.
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Old Sep 13, 2011 | 04:59 PM
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Originally Posted by Carsy
Start the engine & have a good look around with a strong torch.
He means a Flashlight
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Old Sep 13, 2011 | 05:56 PM
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Thinking look at easiest first, check for leaks at fuel filter.

Especially if it was replaced ignoring official procedures, i.e. not CLIC clamps, existing CLIC clamps reused rather than replaced, etc.
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Old Sep 14, 2011 | 07:32 AM
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2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
Originally Posted by lkchris
Thinking look at easiest first, check for leaks at fuel filter.

Especially if it was replaced ignoring official procedures, i.e. not CLIC clamps, existing CLIC clamps reused rather than replaced, etc.
The first thing what I do when I change car is to replace all those CLIC clamps with one with screw. The last time my mechanic tried to remove clamp and he damaged small hose (connector to filter) - it was original clamp and after 4-5 changes, it does show age along with hose around that area. In addition, it is very hard to get that hose (5 inch or so) when you badly needed

As advise - replace those clamps as soon as you replace your fuel filter
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