I can't remember the exact orientation but the 3 connections are the vacuum source, the waste gate and the purge filter. The filter is located up at the top of the inside of the fender near the air filter housing. It kind of looks like a fuel filter with only one fitting.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250