hi,
the central locking on my 96 a6 has completely stopped working. i've
checked the vaccum unit and found that when the lock\unlock button is
pressed the relay energises but the pump fails to do anything. Is it
possible to replace just the pump motor and not the entire unit ££££?
if not does a new vaccum unit need to be coded

thanks in advance

chris

 

Hi Chris,

I have a 96 S6 and my vacuum pump had blown as well. The actual pump is
located next to the battery under the rear passenger seat - you have to
remove the battery to get at it and its wrapped in grey foam.

I picked up a used pump from a guy on the west coast of the states for
US$60. My dealer was asking Cdn$630, about £280. I also looked around for
used parts in UK (I'm a Brit in Canada) and found a part at 4 Rings Spares
Ltd (01405 816661). E-mail tham at Parts4rings@aol.com . They had one inc.
vat and delivery for £100. The part number you are looking is 4A0 862 257G.
The last letter may be a "J" thats OK. If the first three characters are
different, that's not OK - this is part for RF type remotes - I assume you
have the Infra Red type.

Be careful of the order of removing the connectors. My Bently CD states the
middle connector must be removed first and replaced last. Not sure why but I
followed those guides and replaced it easy enough.

The pump probably blew due to another problem. Look at the actuator on the
driver side door (right hand drive car). The vacuum hose may have a hole
there. Mine did and I've heard of this before from others. Unfortuately you
may have to completely dismantle the door frame but its not too big a job -
took me about 2.5 hours.

May I suggest you get the Bently and ETKA CDs. I picked both of them from
online sources for about Cdn$100 and find them most useful.

Good luck

Tony
Ottawa

"Chris Moody" <chrismoody3@hotmail.com> wrote in message
news:b5b0213f.0311290346.15a24404@posting.google.c om...
> hi,
> the central locking on my 96 a6 has completely stopped working. i've
> checked the vaccum unit and found that when the lock\unlock button is
> pressed the relay energises but the pump fails to do anything. Is it
> possible to replace just the pump motor and not the entire unit ££££?
> if not does a new vaccum unit need to be coded
>
> thanks in advance
>
> chris