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Fuel pump replacement instructions needed

Tiny
RACINN3
  • MEMBER
  • 2012 MERCEDES BENZ ML350
  • 3.0L
  • 6 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
How do you replace fuel pump? ML350 Bluetec.
Tuesday, September 29th, 2020 AT 1:39 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I am attaching the instructions from the manual. They are not incredibly detailed so if you need more info. here is a guide that should help with some general info:

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump
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Tuesday, September 29th, 2020 AT 4:31 PM
Tiny
RACINN3
  • MEMBER
  • 2 POSTS
I've seen videos for gas versions and there is a removable plate over the tank to access the pump. Does the diesel versions have the access also?
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Tuesday, September 29th, 2020 AT 5:13 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I looked for this information in the manual and online and didn't find it. That normally means it is not possible. Add that to the fact that the second step says to remove the fuel tank, I suspect it is not there. Sorry.
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Wednesday, September 30th, 2020 AT 5:56 PM

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When a fuel pump goes out it can do so one of two ways either it can quit and stop working or it can fail intermittently causing the engine to stall or not start.

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