[lowpost99]

Hello everyone, I'm working on my sister in law's 2014 X3 F25 35i N55 with 140K miles. She has a P0171 lean code and I smoke tested the air intake just past the MAF sensor at the rear of the engine I don't know the name of that induction pipe that runs down the right side of the engine bay. I found a couple of leaks the largest was the charge pipe on the driver's side. However there were some smaller leaks as well on that long air pipe between the boost pipe and the MAF connection. What is that pipe called? And in the pic below I need the hose clips clamps for the 2)vacuum supply and the 3)heater hose, I can't seem to find info on the 1) hose at the top which needs a clip as well. Can someone help me to get those so I can seal this pipe up tight? Also I have oil in the charge pipe which means valves have blow-by. Anyone know how to deal with this?

[richardodn]

#3 is PN 11127584128 Crankcase Vent Hose It looks like at least a couple of the clips are broken off (should be 4) and it's not fully inserted. The corrugated plastic tube is known to get brittle and crack if it gets disturbed. You'll probably want to replace the whole assembly.

[richardodn]

#2 is PN 11657588771 Vacuum Pipe
#1 I haven't found yet
While you're in that area, you'll want to check the vacuum hoses that run to the pneumatic wastegate actuator located below the charge pipe. There's a short section that runs from the valve cover to the actuator and a longer braided line that runs from the actuator to the front of the engine.

[firediver]

For any future user interested in this topic, #1 is the "Sucking jet pump with lines" PN 13907601507.