Oil in Harnesses-Fixed?


Did Mercedes already make changes in my 2014 ML350 to prevent this destructive phenomenon?
I don’t see how oil would get pumped through this type of harness, with the breaks in there….
Last edited by Brent S; Dec 12, 2025 at 10:07 PM.
https://a.co/d/djSaqtC
https://www.fcpeuro.com/products/mer...0790kt#fitment




Point being that solenoids are not primary leakers but Cam sensors are guaranteed to leak.
-- Short term remedy is new sensor + sacrificial extension.
-- Long term fix is prevent the extreme heat accumulation.



