Re: 85 5kst Central Locking Woes

[pag@hydrosphere.com (Pete Gotseff)]

On Tue, 03 Mar 1998 Patrick K. Eades writes:

> Hello Audi Enthusiast and not so enthused lately,
> 
> My doors are locking up just fine!  It is the unlocking that becomes a
> problem.
> I can hear the motor under the seat when locking and all the locks will
> lock.  I go to unlock and nothing happens.  Anybody have any ideas?
> 
Before tearing the door apart, check for 12v at the bipressure pump 
connector.  Lock has 12V applied on one side, unlock has 12V 
applied to the other side (like a flip flop), the center brown wire 
is, as always, ground.  The switch in the door looks essentially like 
the other blue VDO vacuum actuators except w/ a 3 plug connector. It 
is mechanically connected directly to the lock plunger.  

I have never seen one of these switches to fail in the manner in 
which you describe.  The pumps, yes.  I've sucessfully destroyed 
a pump trying to figure out what was wrong .... now  I 
just replace them if they break.  In my limited experience any VDO 
or Hella bipressure pump will have the same connector and operation - 
They do vary in external dimensions.  I've interchanged Quantum, 4K 
and  5K pumps successfully.  I've never paid more than $20 for one 
... they are a dime a dozen at any yard that has ferr'in cars.  Seems 
all 80's 4Ks, 5Ks and most Quantums US import had P/L.

Any other thoughts out there.

-------------------------
Peter Gotseff
pag@hydrosphere.com
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