lock vacum pump

[Andrew Duane]

It's under the back seat. It is (IIRC) two screws at the front of
the seat that hold it to the floor and are easily removed.
There is a small black box about 6"x4"x4" with a pump, an electrical
connector, and a couple of plastic vaccuum lines.

I often found that simply reseating (unplugging then plugging back in)
the electrical connector worked. Also make sure the vaccuum lines are
not tangled or crimped or kinked.

Hairy green toads from Mars made Ahmad Helal say:
> on my 90.audi.100 my locks don't lock/unlock when I lock/unlock my
> driver's door as it used to do. I just now heard of a lock vacum pump....
> where is this located on my car? would this be the problem or could it
> be something else?

-- 

Andrew Duane            Member Technical Staff - ATG
SavaJe Technologies     andrew at savaje.com
100 Apollo Drive        p: 978.856.4943
Chelmsford, MA 01824    f: 978.256.8386