unwanted oil in engine...
Thread Starter
Senior Member
Joined: Nov 2008
Posts: 461
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From: Orange County, CA
C230 K Coupe (05)
unwanted oil in engine...
Hi guys,
As the pictures will show below, there is oil coming from somewhere in my engine. All the harnesses were replaced by the dealership and I recently replaced the spark plugs. The first spark plug was extremely oily and the second one was a bit oily upon replacement. Number 3 and 4 were dry. Upon removing number 1 plug last night, I saw oil again. Prognosis???
TIA
#1 is the closest to camera and #4 is farthest
#1 plug
Covered with oil
Oil accumulating in there! I had cleaned it out when i replaced the spark plugs
Minor leak from here too (right side)
As the pictures will show below, there is oil coming from somewhere in my engine. All the harnesses were replaced by the dealership and I recently replaced the spark plugs. The first spark plug was extremely oily and the second one was a bit oily upon replacement. Number 3 and 4 were dry. Upon removing number 1 plug last night, I saw oil again. Prognosis???
TIA
#1 is the closest to camera and #4 is farthest
#1 plug
Covered with oil
Oil accumulating in there! I had cleaned it out when i replaced the spark plugs
Minor leak from here too (right side)
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,105
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From: Toronto, Canada
2019 C300 Wagon; '75 Triumph TR6; previous: 2004 C230 6spd sold after 17 years of driving
oil in number 1 spark plug well is a result of sloppy pouring by whomever was doing your oil changes
Oil around the camshaft solenoid actuators, either snug up the bolts or refit a new o-ring - may not be seated properly
Oil around the camshaft solenoid actuators, either snug up the bolts or refit a new o-ring - may not be seated properly
Thread Starter
Senior Member
Joined: Nov 2008
Posts: 461
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From: Orange County, CA
C230 K Coupe (05)
i got the oil change done by the dealership 5k miles ago. And the one thing i noticed was that oil was splashed everywhere in the engine bay. took it back to the dealership and they steam washed the engine bay...so quite possibly. but will that oil come back there even after i cleaned it out last time?
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From: DC/VA
CL203
I am in the process of going through something similar (same engine too)... check the recent posts of my thread:
https://mbworld.org/forums/c-class-w...updates-4.html
basically even though i had my cam sensor replaced to prevent oil leaks... for some reason they didn't do it properly the first time and have to fix all the damage that was caused by the oil buildup
https://mbworld.org/forums/c-class-w...updates-4.html
basically even though i had my cam sensor replaced to prevent oil leaks... for some reason they didn't do it properly the first time and have to fix all the damage that was caused by the oil buildup
Thread Starter
Senior Member
Joined: Nov 2008
Posts: 461
Likes: 0
From: Orange County, CA
C230 K Coupe (05)
I am in the process of going through something similar (same engine too)... check the recent posts of my thread:
https://mbworld.org/forums/c-class-w...updates-4.html
basically even though i had my cam sensor replaced to prevent oil leaks... for some reason they didn't do it properly the first time and have to fix all the damage that was caused by the oil buildup
https://mbworld.org/forums/c-class-w...updates-4.html
basically even though i had my cam sensor replaced to prevent oil leaks... for some reason they didn't do it properly the first time and have to fix all the damage that was caused by the oil buildup
I have gotten my cam sensors replaced already. Gonna do a compression as per a friends recommendation...
MBWorld Fanatic!
Joined: Sep 2006
Posts: 2,697
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From: DC/VA
CL203
i had mine replaced too, but because they didn't do a thorough inspection... it lead to all the problems that happened this week... and their was oil everywhere.
goodluck!
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,105
Likes: 11
From: Toronto, Canada
2019 C300 Wagon; '75 Triumph TR6; previous: 2004 C230 6spd sold after 17 years of driving
just make sure that when the cam senors was replaced that it was done properly and cleaned/inspected properly at the time the recall was serviced.
i had mine replaced too, but because they didn't do a thorough inspection... it lead to all the problems that happened this week... and their was oil everywhere.
goodluck!
i had mine replaced too, but because they didn't do a thorough inspection... it lead to all the problems that happened this week... and their was oil everywhere.
goodluck!
There are 2 cam sensor (CMP) and you will find them at these locations: The intake CMP is located opposite coil for cyl 3 and the exhaust CMP is on the right side of the cylinder head just below the valve cover and are made of plastic
Lets call the parts by the proper name or people will be looking for the wrong item
Last edited by Boom vang; Oct 22, 2011 at 10:33 AM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Check all crankcase breathers for leaks. Also check cambox gasket & plug hole seals for leaks.
If you need to replace the cambox gasket use some Yamabond on it.
If you need to replace the cambox gasket use some Yamabond on it.
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Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Possibly - that's what I'm calling the cambox gasket. There are also 4 rubber seals - one around each plug hole. You can buy the gasket and seals as a kit.
Thread Starter
Senior Member
Joined: Nov 2008
Posts: 461
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From: Orange County, CA
C230 K Coupe (05)
Thanks glyn. That's exactly what I'm going to get replaced next weekend. The shop I go to said that it's pretty prevalent issue with this engine.
Super Moderator
Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
It does happen from time to time which is why I recommend Yamabond. It's the finest sealer I have found & when you need to lift the cambox/valve cover again it will let go easily & can be peeled off of the surfaces easily. It remains pliable. No need for scrapers etc. That's why it is so popular in racing.
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From: DC/VA
CL203
They are not cam sensors but rather solenoid/ actuators the move the camshaft to the different lobes for the variable valve timing. Don't understand why people keep calling these magnets as sensors.
There are 2 cam sensor (CMP) and you will find them at these locations: The intake CMP is located opposite coil for cyl 3 and the exhaust CMP is on the right side of the cylinder head just below the valve cover and are made of plastic
Lets call the parts by the proper name or people will be looking for the wrong item
There are 2 cam sensor (CMP) and you will find them at these locations: The intake CMP is located opposite coil for cyl 3 and the exhaust CMP is on the right side of the cylinder head just below the valve cover and are made of plastic
Lets call the parts by the proper name or people will be looking for the wrong item
