Hi Mark,

I have a similar problem with my 96 S6. The vacuum pump is located under the
rear passenger next to the battery on the outside, wrapped in foam - it
isn't fixed down to anything. Can you here the control unit attempting to
activate the pump but there is no sound or action after the control is
depressed - either from the remote or the switch on the driver door?

The control unit/pump part number is 4A0 862 257G (or J) for the unit with
infra red remotes and 8L0 862 257B if you have a RF control unit. A new unit
is approx US$380. Easy do-it-yourself fix, but when dismantling the middle
connector must be removed first and replaced last when re-assembling -
Bently repair CD says so.

Good luck,

Tony
Ottawa



"Mark Taylor" <mejtaylor@hotmail.com> wrote in message
news:ba8238cc.0307011013.2fd948dc@posting.google.c om...
> I've just bought a 1997 A6 - the central locking doesn't work. are
> they vacuum operated? where can i find the pump? i've checked for a
> fuse (can't find one) and if the wires are connected to the switch on
> the door (they are). does it have a relay?
>
> don't want to pay audis labour charges if it's something really
> simple...
>
> thanks