[LinnaChuk]

Can’t find it anywhere but anyone know what this hose is called?
It’s on an N52 its leaking need to figure out why and what the part number is if possible.
Thanks!

[TGTIW]

That's your Eccentric Shaft Sensor, not a hose. Common leak point.
Requires the valve cover removal to replace.

https://www.e90post.com/forums/showthread.php?t=697252

[LinnaChuk]

Thank you!

[e90yyc]

Just to add: if it’s ONLY the gasket that’s leaking, it can be replaced without removing the valve cover. But the sensors do commonly fail and become contaminated with oil, after which point oil seeps out through the connector.

A good way to gauge whether it’s worth replacing the gasket (rather than the whole sensor and the gasket) is to unplug the connector and check if it’s dry. If you see any oil inside, she’s probably toast. If there’s no oil, then a simple gasket replacement might do the trick.

[PhaceN52]

Just in case
11127528242

[oVeRdOsE.]

Originally Posted by e90yyc

Just to add: if it’s ONLY the gasket that’s leaking, it can be replaced without removing the valve cover. But the sensors do commonly fail and become contaminated with oil, after which point oil seeps out through the connector.

A good way to gauge whether it’s worth replacing the gasket (rather than the whole sensor and the gasket) is to unplug the connector and check if it’s dry. If you see any oil inside, she’s probably toast. If there’s no oil, then a simple gasket replacement might do the trick.

I was about to post this, I did change it, but I really dont remember if I removed the cover or not. It's been a while.

But Im pretty sure I did not remove it.

[StradaRedlands]

Originally Posted by e90yyc

Just to add: if it’s ONLY the gasket that’s leaking, it can be replaced without removing the valve cover. But the sensors do commonly fail and become contaminated with oil, after which point oil seeps out through the connector.

A good way to gauge whether it’s worth replacing the gasket (rather than the whole sensor and the gasket) is to unplug the connector and check if it’s dry. If you see any oil inside, she’s probably toast. If there’s no oil, then a simple gasket replacement might do the trick.

Great overview/advice!