Mysterious oil leak-camshaft sensor - Page 2 - Mercedes Benz SLK Forum
SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

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#21 Old 02-19-2012
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Originally Posted by markwade View Post
Latest sit-rep, all is now well, the main oil leak turned out to be coming from the oil level sensor which lives on the side of the sump, what was confusing the issue was that a small amount of oil was coming from above the sensor which I believe was coming from the cam adj solenoid, as mentioned before I have resealed the cam adj sol and fitted a new level sensor @ approx £48......sorted!
I have similar leak in my 99 slk. How did you change oil level sensor? Is it easy process? Just remove the bolts and put a new sensor in? DO you have to drain oil?
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#22 Old 02-20-2012
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Hi Slimsol,

Yes, the oil level sensor is an easy job. On my post face lift car I removed the engine undertray, drained the oil, removed the sensor and fitted the replacement unit.
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#23 Old 02-20-2012
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Do anybody know the partno of the cam adjuster on a facelifted 230 SLK 2001?

Last edited by Dontino; 02-21-2012 at 04:58 AM.
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#24 Old 10-08-2012
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Just wanted to thank you guys for the great info you provide. Was looking up oil leak recall on slk230 due to cam adjuster selenoid and there you have it. Pictures, explanations, you name it. I don't know if my car has the problem yet, but at least I know where to look.

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#25 Old 10-08-2012
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Suggest you go to dealer and have them check it and they might install the wire patch free of charge to prevent any future leak from entering the wire loom. Can not hurt giving it a shot.
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#26 Old 10-08-2012
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Is this leak a recall? That would be nice, 2 weeks ago i noticed mine was leaking too, i bought the 3.00 o-ring to change it out but it never came when they delivered my other stuff from Mercedes dealership.
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#27 Old 10-08-2012
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it is a like a recall but no notice is sent out. When car is taken in to a dealer they will do the repair and install a wire patch. See below

SERVICE: GROUP 00 OF SERVICE INFORMATION BINDER
PARTS: GROUP I OF INFORMATION _ PARTS & ACCESSORIES BINDER

Campaign No. 2009100001, December 2009
TO: ALL MERCEDES-BENZ CENTERS
SUBJECT:
Models 170/203, Model Years 2001 - 2004 / 2002 - 2004

Replace the Camshaft Adjustment Solenoid(s) and Install Adapter Harness(es)
Revision Date Purposea 12/15/09 Inclusion of reimbursement information- 12/04/09 Initial issue
This Service Campaign has been initiated because Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that due to the settling properties of the seal of the camshaft adjustment solenoid specification, oil may enter the engine wiring harness (es) through the electrical connection of the camshaft adjustment solenoid from capillary action. Dealers will replace the camshaft adjustment solenoid(s) and install an additional adapter connector harness (es) at the next workshop visit.
Prior to performing this Service Campaign:
^Please check VMI to determine if the vehicle is involved in the Campaign and if it has been previously repaired.
^Please review the entire Service Campaign bulletin and follow the repair procedure exactly as described.
Please note that Recall and Service Campaigns do not expire and may also be performed on a vehicle with a vehicle status indicator.
Approximately 66,113 vehicles are affected.
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#28 Old 10-08-2012
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So this is the problem with the oil leak? So if i take it to a Mercedes dealership, they may replace it free of charge if they choose to?
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#29 Old 10-08-2012
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shoot :/ its only on facelift models right?
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#30 Old 10-08-2012
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I would check with dealer and see what they will do. Nothing ventured nothing gained as the saying goes. Can not charge you for just checking.
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#31 Old 10-08-2012
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Lol, my dad says that a lot. Thank-you, i will check ASAP
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