Leaking oil sensor on M271 engine

Oct 9, 2010 | 10:27 PM

8ungchris

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Newbie

Joined: May 2008

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From: Ventura County, Southern California

2004 c230 kompressor

Leaking oil sensor on M271 engine

I noticed quite some oil around the oil sensor and subsequently in the connector. Has anyone had that before? What causes it? Defective sensor or only the seal?

Oct 10, 2010 | 01:59 AM

LILBENZ230

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2019 G70 6MT & 2022 Ford Maverick XL

This has been discussed on the forum for many years and millions upon millions of time. Please use the search function!

Oct 10, 2010 | 04:19 AM

wsw

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Joined: Sep 2010

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From: Powell River, BC

'05 c230 Coupe

Here's a thread that will get you started https://mbworld.org/forums/c-class-w...m-sensors.html

Oct 10, 2010 | 05:35 AM

Glyn M Ruck

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From: Llandudno, Cape Town, South Africa

late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires

New O ring - common.

Oct 10, 2010 | 02:19 PM

8ungchris

Thread Starter

Newbie

Joined: May 2008

Posts: 4

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From: Ventura County, Southern California

2004 c230 kompressor

Thanks guys. I am currently replacing the cylinder head (misfire cylinder two, low compression), the cam sensors and the harness. I will now also replace the oil sensor o-ring to ensure I don't have another source of oil entering my harness.

Oct 11, 2010 | 07:58 AM

BF_JC230

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From: WNY

2005 w203 C230

Please put your car's year, your location and other information in your shared profile to help out...Thanks!

Hope you get all of this fixed...there is also (depending on your leak) a pigtail you can add on to protect and isolate any future leaks...

Oct 11, 2010 | 10:27 AM

wsw

Junior Member

Joined: Sep 2010

Posts: 18

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From: Powell River, BC

'05 c230 Coupe

and here's a youtube video that explains the complete procedure. The narration is in Spanish, but it's really self explanatory - good enough to be made a 'sticky' in my opinion.
http://www.youtube.com/watch?v=PoeSSEmpsHM&translated=1