The check valve on the original hose failed not too long ago so I ordered a new one from the dealer, along with the new hose it came with a 3 way connector and about 2 feet of new vacuum line. As some or all of you know there is a difference in the old and new lines so I installed the new one but didn't see the need to install the extra line that came with. The problem I'm having now is that everything works fine except for the door locks, when I unlock the driver side the others want to lock and vise versa. What the heck did I do wrong it just doesn't make sense to me, btw I tried to install the old hose again and the some problem happens.

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OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ

89 560SEC
90 350SDL (Rudolph)
91 350SDL (300SDL drivetrain)
87 BMW 635CSi (Swanhild)
89 BMW M6 (euro)
99 Suzuki Hayabusa (Only the fastest thing ever)

Something is not making sense here because the doors get vacuum from the vacuum pump in the trunk, not from the main vacuum line.

There must be more to the tale...............

I wish there was, but thats the only thing that I touched! In fact thats the only repair that I have done In a long time and everything was working perfectly until I changed the hose.

__________________
OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR, ONLY IN A BENZ

89 560SEC
90 350SDL (Rudolph)
91 350SDL (300SDL drivetrain)
87 BMW 635CSi (Swanhild)
89 BMW M6 (euro)
99 Suzuki Hayabusa (Only the fastest thing ever)