What is this!?

MatBat · Post by **MatBat** » Wed Dec 10, 2003 12:11 pm

Does anyone know what this is? It has a narrow vacuum tube going to it.

Ben Harris · Post by **Ben Harris** » Wed Dec 10, 2003 4:25 pm

I could be wrong (and probably am), but it looks like it might be the bit that Lee pointed out on my new 2-litre, as being the MK3 (or was it 2? - can't remember!) ABS controller. I know that it isn't in the cubby hole in the boot like it is on earlier (MK1 and 2, presumably) ABS controllers, and it was definatly a black circular thing in that kind of area under the bonet.

If you know you've got ABS, take a peek in the cubby hole in the boot to see if the controller is in there. If it's not then I'd imagine that's what it is. I was going to suggest that failing that, it could be an old alarm system that someone's fitted, but thinking about it.... an alarm with a vacuum pipe going to it?

Ben.

MatBat · Post by **MatBat** » Wed Dec 10, 2003 4:41 pm

I don't have ABS, or If I do it isn't working, where abouts in the boot would the controller be?

chriskay · Post by **chriskay** » Wed Dec 10, 2003 4:49 pm

I'd be surprised if you didn't have ABS. The controller is (or is on mine) in the left hand cubby hole in the boot, at the side, above the floor. There's a matching one on the right which is just storage.

strangegame · Post by **strangegame** » Wed Dec 10, 2003 4:51 pm

MatBat wrote:I don't have ABS, or If I do it isn't working, where abouts in the boot would the controller be?

opposit your aeriel

MatBat · Post by **MatBat** » Wed Dec 10, 2003 4:54 pm

I'll have a look tonight

pol · Post by **pol** » Wed Dec 10, 2003 5:11 pm

I doubt thats the ABS controller, but the later models do have the controller in that sort of area. Kind of like a combo of the earlier brake servo and controller in the boot is what I think it looks like.

pol

MatBat · Post by **MatBat** » Wed Dec 10, 2003 6:56 pm

I can't see anything in the boot looking like an ABS controller.
There is no light on the dash saying ABS either so I don't think I have it.
So that brings us to the question What is that black thing?

Does anyone else have one?

I might disconnect it to see what happens.

Ben Harris · Post by **Ben Harris** » Wed Dec 10, 2003 7:29 pm

It almost looks like it "vents" into the car. Have you got one of the air controls that adjusts where the air is directed when you press a button (like my 2.0ES with aircon has), rather than one where you adjust a slider instead (like my 1.7ES without aircon has)? If so, the vent positions are adjusted using the vacuum from the engine, so it might be that?

Ben.

MatBat · Post by **MatBat** » Wed Dec 10, 2003 7:30 pm

I have a button near the gearstick, which recirculates the air

Ben Harris · Post by **Ben Harris** » Wed Dec 10, 2003 7:35 pm

.... which I haven't got in my 1.7ES, and I definatly know I haven't got one of those black "things" either. I would hazzard a guess that that's what it's for then. I guess the only way to find out is to try disconnecting it, and see if you get stuck with only fresh air, or only recirculating air!

Ben.

MatBat · Post by **MatBat** » Wed Dec 10, 2003 7:39 pm

I'll go and try it soon, just had a closer look at it, it has two vacuum pipes connected to it, one goes inside the car, the other goes to small round thing next to it in the photo (withe the two pipes connected) this thing has two electrical contacts on it. My car is Wierd!

volvofox · Post by **volvofox** » Thu Dec 11, 2003 12:48 am

its a vacuum buffer tank, that belongs to the sytem that handles the recirc. button. the levers on the flaps of this system are handled with little vacuum cylinders

I have not seen many cars with this system. (its rare ?)

how can it be anything electrical if it only has one vacuum connection, and no wires comming out ?

luck
JPF

Ben Harris · Post by **Ben Harris** » Thu Dec 11, 2003 1:02 am

volvofox wrote: its a vacuum buffer tank, that belongs to the sytem that handles the recirc. button. the levers on the flaps of this system are handled with little vacuum cylinders

Well.... we came to the right conclusion in the end then!

volvofox wrote:how can it be anything electrical if it only has one vacuum connection, and no wires comming out ?

I didn't know it didn't have any wires coming out. As far as I can see, Matt didn't mention anything about wires! I was looking at the picture which he'd posted, and it appears to run very close to the wiring loom, so I assumed it was probably connected into that somehow. That's my excuse, anyway!

Ben.

volvofox · Post by **volvofox** » Thu Dec 11, 2003 1:05 am

ah, don't feel offended. it wasn't meant to.

gerrsvolvo · Post by **gerrsvolvo** » Thu Dec 11, 2003 7:19 am

Hi Mat
You have started an intersting coversation

But three questions before i can give my ideas about this.
1- does it have a vacuumlead going out?
2- wich type of heater controls are inside the car. I mean the pushbutton
or de silde system controls?
3- does the car have the white vacuumtank near the A-post behind the
frontwing?
Gerrsvolvo

MatBat · Post by **MatBat** » Thu Dec 11, 2003 8:21 am

You have started an intersting coversation
But three questions before i can give my ideas about this.
1- does it have a vacuumlead going out?
2- wich type of heater controls are inside the car. I mean the pushbutton
or de silde system controls?
3- does the car have the white vacuumtank near the A-post behind the
frontwing?
Gerrsvolvo

It has Two vacuum hoses connected (I am guessing 1-in, 1-out)

I have got the slider controls, but also two buttons next to the gear stick.

I havent looked for the vacuum tank yet.

how can it be anything electrical if it only has one vacuum connection, and no wires comming out ?

It doesn't have wires comming out, one of the vacuum pipes goes to an electrical thing which can be seen next to it (I'll highlight it on the picture)

I didn't describe it very well before

chris1roll · Post by **chris1roll** » Thu Dec 11, 2003 9:51 am

The vacuum buffer tank in my old car was a white knobbly thing (ooh er) inside the drivers side front wing?
just to add some confusion!

dragon · Post by **dragon** » Thu Dec 11, 2003 9:54 am

Just as another idea, it wouldn't be the pump for the (Corsair?) fuel reclamation system, would it?

I suspect having this odd device coupled with these strange extra buttons near the gearstick is too much of a coincidence though - they surely are related?

MatBat · Post by **MatBat** » Thu Dec 11, 2003 9:56 am

hmmm. I think it must have something to do with recirc.

Havent tried yet, must do so.