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I walked out one morning and discovered a large leak under my car. There’s oil covering the transmission pan and directly in front dripping from wire harnesses. Recently had valve cover gaskets replaced, spark plugs and coil wires replaced. Looked behind the engine and didn’t see any oil as far as I could see. Any idea where this large leak is coming from??? I took pictures. I am afraid to drive this car with this leak. I will mention that the leak started after driving from warmer weather (where it’s stored) to much colder weather in the mountains. This is the first major leak on this car. Any help is greatly appreciated 🙂
Yes, that does look like a major leak. Is the pool we are seeing in the belly pan? Hard to say by the color if it is tranny fluid or engine oil, but given where it is located, it may be tranny fluid. What volume is in the belly pan?
By belly pan do you mean the plastic shield underneath? The color of the fluid is a golden brown. It feels like a thinner oil.
The tranny fluid that was used was a Mercedes brand but I’m not sure what kind. It had a tranny fluid change at around 90k.
Last edited by Ghennes13; Dec 17, 2017 at 11:48 PM.
By belly pan do you mean the plastic shield underneath? The color of the fluid is a golden brown. It feels like a thinner oil.
The tranny fluid that was used was a Mercedes brand but I’m not sure what kind. It had a tranny fluid change at around 90k.
This is the pilot bushing whose rings fail with time and a leak happens. It's located on the front corner of the transmission - passenger side. Inspect it and let us know if the fluid is coming from there. If that's the case, it's an easy replacement with a new pilot bushing which costs $10-15.
This is the pilot bushing whose rings fail with time and a leak happens. It's located on the front corner of the transmission - passenger side. Inspect it and let us know if the fluid is coming from there. If that's the case, it's an easy replacement with a new pilot bushing which costs $10-15.
Thank you. It’s looking like this is the most logical reason for the sudden leak. I was afraid it was from the rear main seal. Won’t know for sure until I check it.
Thank you. It’s looking like this is the most logical reason for the sudden leak. I was afraid it was from the rear main seal. Won’t know for sure until I check it.
The rear main seal's leak will be very slow and gradual as opposed to walking to the car and finding a huge pool of fluid under it. Check and let us know when you can. Hopefully, it's an easy fix of replacing the pilot bushing and adding transmission fluid.
The rear main seal's leak will be very slow and gradual as opposed to walking to the car and finding a huge pool of fluid under it. Check and let us know when you can. Hopefully, it's an easy fix of replacing the pilot bushing and adding transmission fluid.
how hard to replace this part myself? What kind of tools do I need?
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