There's a large metal vacuum line that comes out of the center front area of the intake manifold. It eventually goes to the brake booster, and if you follow it from the intake when you get towards the front of the engine you'll see a coupling. That's where I opened up my system, and I found a piece of clear tubing that inserted snugly into the end of the vacuum line, thereby leading directly to the intake.

That done, I started the car, then inserted to hose into the BG-44k-it sucked ithe whole can in in about 3-4 seconds...very quickly. Since you're supposed to shut off the car just as you finish administering the 44K, I'd suggest you enlist the aid of a friend to man the ignition switch.

Good luck!

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo