Re: Power locks woes

[ti@amb.org (Ti Kan)]

PN writes:
> My 87 4k is having some trouble with the locks. The front two locks lock 
> and unlock together, but the rears, and the trunk do not. Bentley makes it 
> looks like the drivers door lock isn't on the vacuum system, but the front 
> passengers' (which works) is. So this means that part of the vacuum system 
> works (fpass door)...? Anything to check? When I had the rear seat out, all 
> the hoses and Y connectors looked fine.

All locks (except the driver's door) on your car should be on a common
vacuum system.  It may be that there is an air leak somewhere (loose/broken
hose or hose couplings) that there isn't enough pressure to actuate the rear
locks and the trunk lock.  Check for such leaks.  If all hoses look intact,
then perhaps the bi-pressure pump isn't generating enough pressure change.
The pump is located inside the right rear fender, just under the fuel filler
neck.

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
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