Hi Waykooljr,

The banjo bolt is on the passenger side of the engine and connects to the sensor with a rubber hose. The sensor is on the bracket behind the turbos and pretty much the only thing easily visible once the engine cover is off. It is the area in the engine bay where a whole gaggle of vac lines converge.

I used the cloth covered vacuum line from AARodriguez on TuneMy Euro.com. [His videos are very useful as are those of project 5seven.] The exception was the line under the turbo going to the waste gate which I bought from GetBMWparts.com, supposedly this one is a different material from the others. You may have a BMW dealer selling online closer than Silver Spring, MD, which is close to my house.

To diagnose your M57 engine you probably should also look in to getting INPA or ISTA software. I feel that without these software packages the maintenance on the E70 is near impossible.

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2003 4.4i black ext./black int./black headliner (kid's runabout)
2014 535d X-drive, M package, silver/black interior

Sold but not forgotten:
2009 E70 35d, black ext./black int./black headliner (sold 2021)
2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly...

Other hardware:
2015 Cayenne S (wife's new DD and definitely wroooommmmm)
2016 Tundra 1794 edition crew cab, luxo hauler
2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles.