I'm trying to fix my central lock unit, it seed that it had some cold contacts.I opened the unit and found what i was looking for but I not really sure how to connect tubes inside the unit.I took some photos, I would appreciate any help
It's an older 4A0 vacum pump from 96

I know that ending 1 goes into ending 2 since I removed it.
Does ending 3 goes into ending 4, or is there something missing here perhaps?
Maybe it fell off when I removed the circuit board, I'm not sure.

 

Do you have a sunroof? Surely one of those tube is the sunroof drain/runoff that connects to 3 or 2 that drains to the outside.

 

No I don't have sunroof
the thing is it seems that it was tampered before, so I can not be sure about connecting these tubes
on the outside my pump looks just like this

 

Oh I understand what I'm looking at now! Sorry I was lost at the first picture. Yes that's exactly what mine looks like as well.

I think you may have to try a few different combinations until you get the right one. Can you put tube x into connection y, hook up the wires and try the door locks? If they work, great. If not (or more likely - when you press "lock" they UNlock, and when you press unlock, they lock), you can just do some switching of the tubes.

In reality it's a fairly simple pump, just spins to great vacuum to pull the locks or it creates pressure to push the locks. If you dont' get it one way, it should be the other.
At least thats what I think it is.