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[nixoro]

Car has just passed its MOT and now I cannot get heat from the vents which ever way i twist the dial, only to the windscreen.

Am I right to think the likely culprit is vacuum pipes behind the centre console may have come loose / disconnected.

Does anyone have any Ideas and if it is what i'm thinking is there a guide for the centre console removal.

Cheers

Roy

[Marks DTM Calib]

Sounds vac related, also check the vac pipes in the engine bay first as these are easier to see and get at.

[Humpy]

Roy,

This is an ongoing problem with my car I've checked most things but still haven't sussed it. If you take the heater controls apart and look at the rubber vacuum hoses on the back of the rotary switch there are various different colours and I think Yellow is the vacuum feed from the engine bay. I pulled this off and don't get any vacuum from this so my problem is in the engine bay somewhere. Apparently there's a vacuum reserve box somewhere near the pollen filter? So I need to take a look at that some time...

Like Mark says, check all of your vacuum pipes and conectors to see if anythings obvious. Let me know how you get on as it might aid me to find the problem with mine. I don't fancy another winter with cold feet

Humpy

[nixoro]

Thankyou for your input guys its much apprectiated

I shall have a look under the bonnet before I leave work at 5 later today.

Both Ideas are food for thought.

[nixoro]

Well I had a poke about tonight to find a vacuum pipe had melted down near the rear breather pipe so can only assume had made contact with the exhaust downpipe.

The vac pipe runs from the driverside from a 2 in one pipe with two vac pipes running from it, then runs across and in through the bulkhead near the pollen filter, fingers crossed this doesn't go through behind the centre console.

Does anyone know the path of this pipe?

How expensive are the pipes from VX and will this cause any change in the running of the car as so far all I can see its caused the heater direction of flow dial to not work.

[Dazzler]

You can get standard vac pipe from most good car spares shops, you can also get a straight joining piece, so you can cut and join to the original pipe

[Abiton]

While sorting out my heater matrix recently, I found that the yellow 'master' vac pipe has a join, just on the inside of the bulkhead where the matrix pipes come through.  

In Humpy's case, this may be where the problem lies?

[nixoro]

You can get standard vac pipe from most good car spares shops, you can also get a straight joining piece, so you can cut and join to the original pipe

Cheers for the response I shall see what I can do

[nixoro]

Roy,

 Apparently there's a vacuum reserve box somewhere near the pollen filter? So I need to take a look at that some time...

Humpy

In response to this there is a box behind the pollen filter and the vacuum pipe which was damaged ran to this from the pipe with two vacuum pipe connections on it.

I had a stroke of luck called in at my local scrappy on the way home and found a similar vac pipe off an old astra all the omega ones had been cut or removed.

The piece I had, had a bend one end and the other was a jointer so I cut the damaged piece running to the vacuum reserve and joined the good pipe, started the car and now the dial in the middle works. I do plan to buy the correct part soon but the main thing is its working now

Humpy I suggest taking a look for piece of mind.