What is this part from an 03 E46?

[MontereyDave]

Please see picture below; would any of you happen to know what this part is? I found it in the trunk but I don't even know if it belongs there. I can't remember if I or my wife or daughter found it elsewhere in the car and put it in the trunk. Could this possibly have anything to do with my "service engine light" coming on? I appreciate any expertise you might have.

[witeshark]

The electric contacts suggest it's a sensor, the probe is kinda long; it's likely a temp sensor since separating the temp from the electric contacts makes sense.

[MontereyDave]

Originally Posted by witeshark

The electric contacts suggest it's a sensor, the probe is kinda long; it's likely a temp sensor since separating the temp from the electric contacts makes sense.

Thank you witeshark

[Jack Dabsy]

Looks more like a slider of some kind!!

[jimmythepie]

nah its a pen

[Jack Dabsy]

CORRECT !!

Deffo a probe/sensor !!

[MontereyDave]

Thanks Dabsy