WADAN,

There will be a pump when you are going to "search" for it. It is the vacuum pump that controls the:
* central doorlock,
* AC ventilation vacuum pods,
* orthopaedical adjustable seats,
* pneumatic door assist.

...just to let you know...
greetingz,

__________________
1990 300SL-24
1993 C250D with a minor 600+k kilometer
www.MBenzNL.com(the Netherlands)