E-Class (W212) 2010 - 2016: E 350, E 550
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E350 Common Rail Sensor

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Old Apr 5, 2022 | 09:42 AM
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2012 e350
E350 Common Rail Sensor

I'm trying to locate the common rail sensor on my 2012 E350 3.5L Blue Efficiency engine. I realize taking it to the dealership may be easier, but I'd like to exhaust all options before I take it there. If anyone has tell me or show me with a photo where it is that would be awesome. Here is a picture of my engine.
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Old Apr 5, 2022 | 10:23 AM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
You speaking of diesel engine ? You mentioned common rail.
You engine photo is I think is M276 yes ?

Gasoline M272 or M276 engine will have that sensor you speak of, which I am assuming you meant Fuel Pressure ( rail pressure ) & Temp Sensor, see below :



Its always at the fuel rail for sure if High Pressure sensor.


To remove the air induction system :




Have fun................

Last edited by S-Prihadi; Apr 5, 2022 at 10:26 AM.
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Old Apr 5, 2022 | 11:18 AM
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Better view and visual assist on how-to. Becareful, at stand-by ( engine OFF ) there is 100+ BAR or 1,500psi plus of fuel pressure in that rail. You need to bleed it well and carefully.






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Old May 4, 2024 | 12:07 PM
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2014 c300 w204.080 3.5 v6
Sorry wrong thread

Last edited by RobertR728; May 4, 2024 at 12:20 PM.
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