E-Class (W212) 2010 - 2016: E 350, E 550
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Strange noise in enginer

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Old Apr 12, 2022 | 10:13 AM
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CeaserS's Avatar
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Mercedes E class
Exclamation Strange noise in engine w212 E350 2015

Hello everyone,
I'm hearing a strange ticking noise from the back of the engine of my E350 2015, near windshield (continuous after warm up, doesn't vary with rpm).
Car has 78k miles, oil level ok, (recently purchased).
I checked front of the engine (fans and belt, all ok) noise not coming from that side, but the back of the engine.
Any ideas??

Last edited by CeaserS; Apr 12, 2022 at 01:29 PM.
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Old Apr 13, 2022 | 10:22 AM
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atraudes's Avatar
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From: Sammamish, WA
2011 E350 Wagon, 2010 GL450
Blower fan maybe? Turn off the fan and see if it goes away.
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Old Apr 13, 2022 | 05:23 PM
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From: Tremonton, Utah
2014 E350 Sport 4Matic Sedan
The high pressure fuel pump on the M276 is notorious for developing a loud ticking sound. From what I have read, it is nothing but an annoyance. The ticking sound eventually went away on my E350.
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