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405 Mi16 oil leak from oil temp sensor?


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Got a somewhat mild oil leak. Appears to be coming from the oil temp sensor at the back of the sump/pan. At first, I figured it was simply leaking from the drain/plug, but some looking and feeling, I now suspect it's that oil temp sensor. Looking it up in the Haynes, seems like maybe it could just be a worn washer and not the component (sensor) itself. Any thoughts from you far more experienced owners? I'm guessing this is a fairly common source of a leak. So, I'd appreciate any wisdom!

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  • 1 year later...
On 10/9/2021 at 6:07 PM, David405 said:

Got a somewhat mild oil leak. Appears to be coming from the oil temp sensor at the back of the sump/pan. At first, I figured it was simply leaking from the drain/plug, but some looking and feeling, I now suspect it's that oil temp sensor. Looking it up in the Haynes, seems like maybe it could just be a worn washer and not the component (sensor) itself. Any thoughts from you far more experienced owners? I'm guessing this is a fairly common source of a leak. So, I'd appreciate any wisdom!

does your sump look similar to this?

is it 405 or 406?

20230521_183436.jpg

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