Central Locking Vacuum Pump - Benzworld.org

JoeGons · 08-20-2007, 06:00 PM

Hi,
I’m trying to replace the motor for the Central Locking Vacuum Pump on my 2001 E320 W210.
Does anyone have any ides the Specs on the pump?
I need to know what RPM the Motor in these Rotary type pumps operate at.
Thanks,
Joe

BTW If I get it to work, I’ll post how I did it.

JoeGons · 08-22-2007, 05:29 PM

It looks like this.

Kajtek1 · 08-23-2007, 01:44 AM

I wish I could help you, but not only I've never heard about MB electric pump going bad, but I doubt the motor for those can be bough separately. I have spare vacuum pump from my motorhome, but it is digraph type.
Good luck on your search and welcome to the forum.

JoeGons · 08-23-2007, 04:10 AM

Thanks Kaj,
They do go bad. The system is designed so that when the function is complete, it creates a back pressure that cuts off the motor. If there is a leak in ith system, the pump runs until it burns out.
It's an easy fix if you could get the motor.
I believe that Mercedes and Bosch have an arrangement with the makers of these motors that prevent the makers from selling them to anyone else.
I also believe that the motors are not made in Europe and that is how they get away with this arrangement.
The motor is nothing special really. If I could get some specs I believe it will be possible to find a replacement.
Joe