I've been slowly familiarizing myself with my wifes 07 S as I fix different issues and becoming more curious about how things work as a system.

The last job i did was the turbo oil line and im trying to understand where air first comes into the car and all the parts it flows through before making it to the exhaust.

I searched google for a while without finding anything conclusive and other cars seem to be different enough that even if i understand them it still leaves me guessing when i go back to the mini. I got the Bentley manual off amazon but unfortunately it doesnt really explain systems as a whole and doesnt answer many "why" questions.

I labeled a picture with numbers and would truly appreciate if anyone could tell me what order they go in, in terms or air flow start to finish? I know there are some other parts on the back, like the intake manifold and pcv hose and im not sure how they fit in the order either. Im confused if the non exhaust half of the turbo is the only place where cool air is pulled in.

On a related note, are there any resources why this type of info is readily available or is this the type of thing you just have to piecemeal together and work out on your own with experience?

 

5, 6, 1, 2, 3, 4

 

Thanks. So is there more than one way for air to get from the air box to the engine? Or does the air always have to go airbox>turbo>intercooler>intake manifold?

 

All of the air that is used for combustion follows the path indicated by vetsvette. The one step that is not shown is that there is a tube that goes from near the left headlight to the air filter. This is a black plastic tube that goes under the ribbed tube #6 in your picture.

Have fun,
Mike

 

Is the purpose of that tube so that the air filter is drawing air from a cooler location?

 

Part of why Im trying to understand the system is to figure out why there is oil residue around the crankcase ventiliation tube and on top of the intake manifold as seen in the attached picture.

 

Could be the PCV tube has a slight crack in it.

 

+1 on the vent tube. Connection itself. Or the leak coming off the back of the valve cover, but it does not look like it from there.



Vent Hose Part # 11157605186


http://www.ecstuning.com/Search/SiteSearch/11157605186/



Thanks

 

Thanks. I'll try getting that swapped out. This seems like the first issue ive had that is somewhat uncommon.

 

Please gods study more!!!!

 

?? lol...