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First one, I don't see on N55. I see it most commonly on N52k where oil from the engine gets in to the eccentric shaft sensor since 90% of it is under the valve cover. Oil makes it way through the sensor and pushes through the pins and in to the harness.
Never seen this on N55 yet. How's the connector? Should be real easy to look at. Remove the acoustic cover in front. Should be the only round looking connector under it.
As for the other one, I would assume the sensor isn't plugged in.
Neither of which will stop your engine from running. It should lock the eccentric shaft so you'll lose power but it will run. Other one will do no harm. It can gather info from the ambient temperature sensor, air mass sensor and charge air temp sensor on the intake. I assume the one in question is the one on the charge air pipe near the throttle body.
If you need a VIN ran, PM me. I can look it up tomorrow for you.
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