Mercedes-Benz Forum banner

DIY: Fix your PSE (vacuum / compressor pump) [with pictures]

37K views 12 replies 9 participants last post by  cleverpig  
#1 · (Edited)
Since I started getting alot private messages asking how I got mine fixed. Then I spared one night to post this up.

1.
Image
2.
Image
3.
Image

4.
Image
5.
Image
6.
Image

7.
Image
8.
Image
9.
Image

10.
Image
 
#2 · (Edited)
11.
Image
12.
Image
13.
Image


Now go to junkyard and depends what problem you had, make a purchase.
For me it costed 118$ USD with tax included, 100$ without tax.
They may ask for more, just tell them the price you would pay for it and you will get it.

1. If you had broken diagraph.
Buy exactly same PSE, look for product code on white label from your PSE.
Take yours with you to compare at junkyard.
Test it in front of junkyard to prevent driving twice.
Before testing it make sure your car stereo works, if it's dead then change it's fuse before you go to junkyard.
Well they have fuses there too incase you forget to swap it or kill it twice.
Image


2. If you had broken Vacuum/Compressor pump. Eg it had spark but didn't start to work.
Don't bother taking it in pieces to see if it's motor is okay. You won't get it's motor separately from any shop, neither factory.
Simply factory won't sell under 500 units at once and without project you want to use it with.
Just look for vacuum/compressor type code from top of your PSE cover *not white label!*
Image


Incase you decided to go into lower cost and still took whole vacuum/compressor pump apart:
It doesn't have marked on what type that motor is. It took me a while to find it out.
It's Johnson Motor NC613LM-001
JOHNSON ELECTRIC Product Catalog
Code:
Type 	

    * Motors

Product type 	

    * Johnson Motor PMDC motors

Typical markets 	

    * business machines
    * consumer electronics
    * floor care

Typical applications 	

    * printers
    * plotters
    * joysticks
    * hand-held vac

Dimensions 	

    * Ø 35.8 x 57, shaft Ø 3.17 mm

Characteristics 	

    * this motor is developed for high torque and efficiency required for cordless power tool applications.

Supply 	

    * nominal 14.4 VDC

Torque 	

    * @ constant 5.242 mNm/A

Pole number 	

    * 3

Weight 	

    * 391 g
Image



-This is made thanks to help of Cemty OÜ at www.cf.ee who hosts these pictures.
 
#5 ·
yeah, it's always unfortunate when a great photo packed DIY dead ends when
the photo hosting account expires. i didn't happen to save them either like I
sometimes do when the thread is value packed.

but here are a few alternatives on the chance it may help someone....
PSE repair

the w140 models, those guys are quite skilled at maintaining their even older
equipment, for example as well as this
 
#8 ·
Got them back up. I believe back in 2009 there was no possibility uploading them over here. Or I slightly remember something about requirement of being Premium member to do that. Anyhow if anyone likes you are very welcome to copy paste this guide anywhere or download and reupload these pictures to anywhere else. For backup or whatever other reason.

Seems quide has been quite useful over time.
 
#13 · (Edited)
A few years ago I had problems with the PSE pump on my 1998 E320 wagon running for extended periods. I disassembled it and found the motor was failing. I managed to find an exact replacement motor on ebay and, after rebuilding, the pump works as good as new. If you think that may be the problem with your PSE pump and are willing to rebuild it here is the ebay listing. https://www.ebay.com/itm/Mabuchi-RS-555-PH-12V-4500-RPM-High-Torque-5-Pole-Hobby-Motor/281546715509 It cost $8 with free shipping.