Anyone? I fiddled around with the pump this morning and nothing physically noticeable as I would obviously assume pressure is maintained internally.

I want to refrain pulling tubes off the pump and try to test...if anyone knows how... While its still attached to the car. I observed the two female electrical plugs leading to the pump. I removed them and re attached them appropriately.

Please help.

 

Not sure if you have checked out the (Interior Electrical) stickies ...

http://www.benzworld.org/forums/w210-e-class/1368888-help-tips-diys-audio-interior-lighting.html

 

Took a look and it seems one of the threads is either missing pictures or my plug-ins are failing.

 

Sorry, looks like the images are no longer hosted.

 

I used the REST feature again last night and heard a slight hum(not as loud as usual), I suppose coming from the rear seat. Thats the first i've heard from it. Checked the locks immediately after hearing it and nothing, still nothing.

 

I noticed the CEL was on after my mother took the car for grocery shopping. I recently disconnected the battery in hopes to sync the pump.

Does the pump throw a code? What does PSE stand for?

 

Here is a thread with useful information in the future.

http://www.benzworld.org/forums/w210-e-class/1662209-central-locking-pump-question-code-b1439.html

Do you have to cut (as seen in multiple pictures) the vacuum hoses to remove the pump?

 

those are my pictures. I'll take a look at that thread you referenced and see why the pictures are missing. I still owe someone else some comments and experience on the Manifold Vacuum Assist as it relates to the air vents. It may be later in the day. I've been super busy the last 2 weeks and have more on my plate this morning. best. todd.

 

I wouldn't cut the lines. They would seem to be a PITA to connect back on to the plastic adapters/distributors. I disconnect the lines using a small flat head screwdriver. Use the screwdriver to release the clip that holds the grey line adapter on to the PSE pump port. I think PSE stands for Pneumatic System Equipment. The first picture in that thread is a stock picture of someone who was selling their pump.

Brandon, you mentioned "Only the physical door mechanism will lock that single door". Which door? the driver's door? If only the driver's door will lock/unlock, you may have a broken line/adapter/distributor from your pump to the other three doors.

I do not know what options you have on your car, but I have a station wagon and my line connections are as follows:

Port SRU (Manifold Vacuum assist) - Helps with air vent actuation when the car engine is not running.
Port BFT/FOND (locks for: Passenger front door, passenger rear door, driver rear door, station wagon hatch)
Port FT (lock for driver's front door)
Port TANK (lock for fuel tank lid)

Note that I do not have the lumbar seat option which may be port MKL. I don't know what port KAF is and I'm not really sure what port HECK is - althought I think HECK is the rear trunk for sedans.

The PSE pump uses vacuum to lock the actuators (doors/lid) and uses pressure to unlock the actuators (doors/lids). The SRU port only provides vaccum. I'm not sure about the lumbar seat options. It probably uses both vacuum and pressure.

To test the lines going to the various actuators, disconnect the plastic distributor/adapter from the specific port on the PSE pump. Connect a hand-held mighty vac (about $20) to the distributor/adapter. Using vacuum, get to about 10-15 psi. It should hold vacuum and it should also lock whatever the line is going to. If it doesn't hold vacuum, you have a leak someone on the line, connectors, or actuator. A bad leak will result in the inability to lock or unlock your doors/lid. On a side note, my fuel tank actuator has a small leak, but it doesn't prevent it from locking or unlocking, so I don't worry about it. If it holds 15psi and your door doesn't lock, you probably have a bad actuator that needs replacing. The second test is to apply pressure to the same line. Using a different port on the mighty vac, you should be able to hand pump it several times and you will notice the locks/lids will now unlock. If they don't unlock, you haven't provided enough pressure or you have leaks or bad actuators.

Do the above vacuum test for all ports that have locks. If all ports pass the vacuum/pressure tests, connect the mighty vac, individually, to each used port on the PSE pump. You should be able to hold vacuum around 15 psi. If you can't hold vacuum, you may have a broken diaphram or cracked infrastructure in the pump. See my link you referenced earlier on how I fixed my cracked infrastructure problem.

That's about all I can recommend for testing the lines and ports on the PSE pump. I hope it helps. Let me know if you have any questions about the process. Good luck.