Oil leak NEED HELP
oil. One day after i got home i moved the car later in the evening and noticed a big puddle of oil under the drivers side front corner of the car. I haven’t been driving the car because i don’t want to risk anything but i think i found where the leak is coming from today (see attached images). Does anyone know what the part name or part number for this piece is?
Please excuse my ignorance i’m still new to the w220 chassis
the line that is leaking goes near the radiator and then goes to the front right corner of the car. Thank you all for your help.




If you’re new to the car, my first WAG would be valve cover gaskets leaking down from the engine. The way to see would be to have someone get the car on a lift, spray everything off, then check back to see what comes back. Or, you can take a flashlight from above in your garage and look around the top of the valve cover. Valve covers need to be replaced on these every 50k miles with spark plugs and are known issues. They don’t hide from flashlights very well. If your valve cover is leaking, you probably need spark plugs too because they should be done simultaneously and the prior owner of your car likely didn’t.
GL
maw
PS… look at the very top of your 3rd picture. That’s not the hose leaking upward. That’s something leaking down from above onto the hose and everything else.
Last edited by maw1124; Dec 20, 2021 at 05:01 PM.
If you’re new to the car, my first WAG would be valve cover gaskets leaking down from the engine. The way to see would be to have someone get the car on a lift, spray everything off, then check back to see what comes back. Or, you can take a flashlight from above in your garage and look around the top of the valve cover. Valve covers need to be replaced on these every 50k miles with spark plugs and are known issues. They don’t hide from flashlights very well. If your valve cover is leaking, you probably need spark plugs too because they should be done simultaneously and the prior owner of your car likely didn’t.
GL
maw
PS… look at the very top of your 3rd picture. That’s not the hose leaking upward. That’s something leaking down from above onto the hose and everything else.
the picture with the drawing is those lines that i suspected to be leaking.




maw




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Before I did the lines and oil cooler gaskets, I replaced the valve cover gaskets and found that the leaking continued. That's how I ended up doing the lines and gaskets.
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