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OM651 Disappearing Oil Leak??

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Old Aug 19, 2023 | 07:52 PM
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OM651 Disappearing Oil Leak??

I had a small puddle of oil on my driveway and splashed under the car and traced the leak to the plastic pipe which leads to the intake manifold, or possibly the manifold itself. As part of troubleshooting, I took a drive, and then there was no sign whatsoever of an oil leak. I made a video about it if anybody has any idea what's going on. This is a real mystery to me.


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Old Aug 20, 2023 | 01:39 PM
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Having belly shields is not making tracking the leaks easy.
1 of the possibilities is that you drove in rain , who washed engine dirt into shield and then splashed under. Takes some practice to tell pure oil from washed engine dirt, so how is your experience.
Thinking about other possibilities, OM651 is know for weak intake manifold, where plastic likes to crack.
If you are really worry about it, remove the shields, clean the engine and recheck it after some driving.
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Old Aug 20, 2023 | 02:57 PM
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Originally Posted by kajtek1
Having belly shields is not making tracking the leaks easy.
1 of the possibilities is that you drove in rain , who washed engine dirt into shield and then splashed under. Takes some practice to tell pure oil from washed engine dirt, so how is your experience.
Thinking about other possibilities, OM651 is know for weak intake manifold, where plastic likes to crack.
If you are really worry about it, remove the shields, clean the engine and recheck it after some driving.
Thanks for the reply. I had just changed the coolant about 2 days prior and maybe some got stuck somewhere and finally made its way out. I've done 250 miles since this happened and no further signs of leaking. The coolant was black when it came out of the car, so that would explain the color.
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