2010 X5d Oil Coolers Leak?

[blue dragon]

^^ I'm 100% sure, it wasn't water that came out before I clamped it off.

[ZetaTre]

Then I would ask what is oil doing your cooling system? Did you remove the bottom or the top hose?

Again, not being a dick at all but you're 100% sure you got oil out of it and I'm 100% that's water cooling...

[blue dragon]

I removed the bottom hose, there is no oil in my cooling system. All the instructions that I have found specifically refer to this as an oil cooler on the 35D.

Here are some more instructions

http://workshop-manuals.com/bmw/x_se..._headlight%29/

Notice under preliminary tasks

"Release engine oil cooler"

[ZetaTre]

Originally Posted by blue dragon

I removed the bottom hose, there is no oil in my cooling system. All the instructions that I have found specifically refer to this as an oil cooler on the 35D.

Could you share those instructions? I shared with you a BMW document that clearly say that is connected to the radiator where the coolant is...

And if that is an oil cooler than is an oil cooler of what oil? Not engine or transmission, or power steering so I'm unsure what other oils are there

[blue dragon]

^^ I couldn't read your BMW doc from google docs, something about the permissions. I'm telling you exactly what was there on my car.

[ZetaTre]

I just gave you permission, but here's an alternative link: http://prodcds.bmwuniversity.com/lib...erformance.pdf

[blue dragon]

Just had a look at it. I don't know what to say. The two sources I quoted above are what I used for my LCI headlight install, and were exactly what I encounted. (oil in the cooler lines). The instructions even say

Detach oil line (1) from engine oil cooler flange. Catch and dispose of emerging fluid. Unlock and disconnect holder (2). Remove engine oil cooler (3).Note: After completing work, check engine oil level and top up if necessary.

[ZetaTre]

Originally Posted by blue dragon

Here are some more instructions

BMW Workshop Manuals > X Series E70 X5 3.0d (M57T2) OFFRD > 2 Repair Instructions > 63 Lights > 12 Headlights > 5 RA Removing And Installing Or Replacing Left Headlight (adaptive Headlight)

Notice under preliminary tasks

"Release engine oil cooler"

Read it carefully: it says "Left headlight N62"

That's the gasoline V8...

[blue dragon]

^^ The same instructions are valid for the 35D.

[ZetaTre]

Originally Posted by blue dragon

^^ The same instructions are valid for the 35D.

Well they do, but that part clearly doesn't apply to it.

Where did you find that other quote about detaching flanges from oil cooler lines?

Because citing your source here it's clear that there's no engine oil cooler, but a oil/water heat exchanger: BMW Workshop Manuals > X Series E70 X5 3.0d (M57T2) OFFRD > 2 Repair Instructions > 11 Engine (M57T2) > 44 Oil Cooler > 1 RA Removing And Installing, Sealing Or Replacing Oil _ Water Heat Exchanger (M57T2)