Oil Leaking from Cam Sensor or Cam Magnet into Wiring
MBWorld Fanatic!
Joined: Oct 2021
Posts: 1,189
Likes: 636
From: Iowa
2008 CL550, 2022 EQB 300, 2023 EQS 450 4Matic
I have a pick set from Harbor Freight that I use to lift retaining clips. It's more gentle to do it like that than to push or lift anything with a finger. If you do find those connector housings, don't splice them!!! You can release the wire internally and snap them into the new connector. The pick set will come in handy here too although I believe you can release the wire with a safety pin or small paper clip. Just make sure you put them back into the right slots.
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Joined: Jun 2020
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
He's saying once the clip breaks you'd have to replace the plug, by swapping the wires/pins over. And I don't think you are going to win the battle against brittle plastics that are heat aged.
Newbie
Joined: Apr 2024
Posts: 2
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S450
Service Campaign Expired
I have the Service Campaign Bulletin 2012070002 dated Sept 2012. The bulletin has a note that states "...Service Campaigns do not expire (in bold) and may also be performed on a vehicle with a vehicle status indicator." I called Lone Star Mercedes in Calgary AB Canada. They told me the Campaign has expired.
Do you have an idea how I square the two different positions.
Thank you in advance,
Michael
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.[/QUOTE]
Do you have an idea how I square the two different positions.
Thank you in advance,
Michael
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.[/QUOTE]
MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,316
Likes: 1,673
S500
write to Merc Canada and ask what they say - its their money the dealer would be spending
the bits to stop oil going where it shouldn't are available for not much and simple to fit either way - exercise the engine when hot so the piston rings remember how to work and the excess crank case pressure vanishes, instead of looking for places to escape
the bits to stop oil going where it shouldn't are available for not much and simple to fit either way - exercise the engine when hot so the piston rings remember how to work and the excess crank case pressure vanishes, instead of looking for places to escape
Newbie
Joined: Apr 2024
Posts: 2
Likes: 0
S450
Thank you so much. Just sent a note to MBC.
if they can’t help I’ll take care of it based on your kind advice!
Cheers
if they can’t help I’ll take care of it based on your kind advice!
Cheers
write to Merc Canada and ask what they say - its their money the dealer would be spending
the bits to stop oil going where it shouldn't are available for not much and simple to fit either way - exercise the engine when hot so the piston rings remember how to work and the excess crank case pressure vanishes, instead of looking for places to escape
the bits to stop oil going where it shouldn't are available for not much and simple to fit either way - exercise the engine when hot so the piston rings remember how to work and the excess crank case pressure vanishes, instead of looking for places to escape
Junior Member
Joined: Feb 2007
Posts: 70
Likes: 4
2013 S550
came across this one looking for something else
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.
I have the Service Campaign Bulletin 2012070002 dated Sept 2012. The bulletin has a note that states "...Service Campaigns do not expire (in bold) and may also be performed on a vehicle with a vehicle status indicator." I called Lone Star Mercedes in Calgary AB Canada. They told me the Campaign has expired.
Do you have an idea how I square the two different positions.
Thank you in advance,
Michael
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.
Do you have an idea how I square the two different positions.
Thank you in advance,
Michael
Service Campaign 2012070002 SEPT12
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273, MY 2005 – 2011 Camshaft Adjustment Solenoids - due to the settling properties of the seal, oil may leak from the camshaft adjustment solenoid dealers will retrofit four adapter harnesses onto the engine wiring harness. Covers any/all repairs due to damage from oil leak however, notes replacement of leaking camshaft solenoid is not permitted under consequential damage.
Approximately 557,108 vehicles are affected. Have dealer check VMI to determine if vehicle is included. Service Campaigns are covered out of warranty.
Does anyone know if 2013 model years are included, or if there is another service campaign?
Newbie
Joined: May 2024
Posts: 6
Likes: 1
Mercedes C180 Kompressor
Yes, I have this problem in my C180 Kompressor. It's a major headache and a potentially expensive one also.
I don't know what Mercedes was thinking with this engineering design flaw. It's quite prevalent and a poor show. Very disappointing.
I don't know what Mercedes was thinking with this engineering design flaw. It's quite prevalent and a poor show. Very disappointing.
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Junior Member
Joined: Apr 2022
Posts: 23
Likes: 26
S550 4matic
Not sure if this is known to everyone but in Germany, there are quite a few sources for oil stop cables. When you Google "Ölstoppkabel" you can find both enthusiast shops like Motoren Zimmer and parts manufacturers like Meyle.
My m278 started having first signs of oil at the sensors which were checked regularly, the Mercedes dealership has sourced the cables accordingly and will mount them soon.
My m278 started having first signs of oil at the sensors which were checked regularly, the Mercedes dealership has sourced the cables accordingly and will mount them soon.
Newbie
Joined: May 2024
Posts: 6
Likes: 1
Mercedes C180 Kompressor
Sorry, I have no info on the 2013 C180 model but being older than ten years may exclude a warranty. You may need to ask a Mercedes dealer and or take corrective measures yourself to help circumvent such a problem arising. It's an easy fit with the aftermarket wiring pigtails available from numerous motor part suppliers. If your DIY minded, it's a relatively easy fit. Fitting these will stop any oil wicking/ingress into the wiring harness in the event of perished O ring seals on the magnetic camshaft sensors. Best of luck.
MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,316
Likes: 1,673
S500
Please note that Recall and Service Campaigns do not expire and may also be performed on a vehicle with a vehicle status indicator.
Approximately 557,108 vehicles are affected
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273
Model Years 2005 - 2011
Retrofit Adapter Wiring Harness on Camshaft Adjustment Solenoids
4 Adapter wiring harness for camshaft adjustment solenoids
A 271 150 01 56 05
Approximately 557,108 vehicles are affected
Models 164, 171, 203, 204, 207, 209, 211, 212, 216, 219, 221, 230, 251, 463
Engines 272 and 273
Model Years 2005 - 2011
Retrofit Adapter Wiring Harness on Camshaft Adjustment Solenoids
4 Adapter wiring harness for camshaft adjustment solenoids
A 271 150 01 56 05
MBWorld Fanatic!
Joined: Jun 2020
Posts: 2,138
Likes: 870
04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
I managed to check all 8 plugs during the last service on my S550 and somehow did not notice that all of my adjusters have the extension harnesses already. The two exhaust ones were leaking but I guess it doesn't really matter. A friend bought an 09 CLK550 from eBay and that also had the OEM adjuster extensions. What's the verdict on why they never released extensions for the CMPs? I know there are aftermarket options (and I have them on my E63S).
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