Camshaft solinoid oil leak




I just noticed today that my camshaft solinoid is beginning to leak. I've seen there parts online along with the wire harness upgrades because I'll assume mine no longer qualifies for the TSB issues where they replaced these harnesses for free.
My question would be that I have no engine troubles or codes relating to this. Is it still wise to replace the solinoid or replaced only there o ring to stop the leak.
Thanks for all who look but the right solinoid in my picture is leaking
I just noticed today that my camshaft solinoid is beginning to leak. I've seen there parts online along with the wire harness upgrades because I'll assume mine no longer qualifies for the TSB issues where they replaced these harnesses for free.
My question would be that I have no engine troubles or codes relating to this. Is it still wise to replace the solinoid or replaced only there o ring to stop the leak.
Thanks for all who look but the right solinoid in my picture is leaking
https://mbworld.org/forums/e-class-w...ml#post8194523 (one of the links in the other thread)
See if this helps with the issue you are facing OP : )
Last edited by W205C43PFL; May 20, 2024 at 07:35 AM.




I thought the issue with them was the seals inside would leak and oil will travel up the harness. If you see oil on the engine im guessing the o-ring is leaking. I would just replace that and see. I say this since you dont have any faults.
What part #'s are on your solenoids in the car? Are they the lastest part #'s?




So the solinoid appear to be factory and I don't see any extension plugs just factory harness's. I don't see signs off wicking or oil in the plug. It only appears that it's been leaking slowly. They seem easy to replace so I might just order some o ring for them. Unless it's recommended to replace these. I believe this is there pay number at the bottom of the pic of three one that is not leaking. After rubbing the oil of the leaking one the number isn't really readable
Last edited by RobertR728; May 20, 2024 at 12:50 PM.




I have the M272 and they installed the additional wiring harnesses.
I would just replace the o-ring and see if that stops the leak. I had oil on one of the covers and replaced one of the cam position sensor o-rings and it stopped the oil leak.




Still, if no check engine light, no oil in the harness, i would see if just replacing the gasket stops the leak.
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Last edited by JettaRed; May 31, 2024 at 08:13 PM.




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Thanks everyone fort help with this issue.








I never had any leaks with my cap and I would usually just hand tighten it down, but picked up an oil filter wrench just because. I replace the o-rings with every oil change since they come with the Mann oil filters.
Not a Mercedes cap but the same idea:










