Faulty Pneumatic Door Lock System on 4KCSQ

[Huw Powell]

Here is some handy info:

http://www.humanspeakers.com/audi/power-locks-85.htm

The switch in the drivers door is a simple mechanical one.

The rpoblem won't be a leak, since it works in one direction.

Either:

That switch is bad
The "unlock" wire is bad (could be broken in door jamb...)
The bi-level pump does not work in "pressure" mode, only "vacuum".

> Is this an electric switch; i.e., a solenoid?

> IIRC there's only one vac line to each door solenoid.  I think your switch 
> in the driver's door is bad, thus it's not recognizing that you've unlocked 
> the drivers' door and not telling the vac pump to engage.

> Although all of the other doors on my '86 4KCSQ lock when I lock the
> driver's door with the key or by pressing the lock button on the door, none
> of the other doors un-lock when I use the key to lock the driver's door or
> when I lift the lock button to un-lock the driver's door.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/