The clicking has stopped but i cant work out how to use the system properly.

I had a 20 mile journey in the car on Friday. It was 20 degrees outside. I had the climate control set to 19 degrees. The fans came on full blast initially as you'd expect but the cabin never really got that cold. 19 degrees in my previous car (2003 GOLF TDI) was too cold but in the Octy it was comfortable but not cold. The fans dropped to about half speed and stayed there. I was expecting them to drop lower than that. I had it gassed about 2 months ago. Maybe there's a leak?

What temp do you guys set your CC to?

Also when is the A?C actually on? Is it when the Auto button is pressed?

The air con is off if you press the ECON button or if, whilst on, the temperature drops to below 6 degrees celsius. I have mine set to 18.5 at the moment, once it's removed most of heat from the car, the fans drop right off till its just cycling the air. Does yours actually feel cold at the vents? Mine didn't at one point and had to have the compressor replaced, thankfully under warranty. Now it's brrrrrrilliant (Sorry! )

mine is sett at 22 all year round, I find if you have it too cold you die when you get out( if it is really warm outside)

onmeheadson

Try this

Make sure all vents are open

Make sure ECON is off

Turn the temp dial anti-clockwise until it displays LO

Go for a drive - the air out of the vents after about 2 mins should be ice cold - if it isn't you have a problem

A scan with VCDS could help - faulty sensor or low pressure or failed compressor etc.

One thing of note is if there are ANY stored fault codes for the engine the ECU disables A/C until the fault codes are cleared.

Do your radiator cooling fans come on when you do the above? If not, you most definitely have a fault somewhere. The radiator fans always come on when the A/C is actually being used to cool.

mine is sett at 22 all year round, I find if you have it too cold you die when you get out( if it is really warm outside)

Wow - I didn't know the A/C was that powerful!

Wow - I didn't know the A/C was that powerful!

Yep

Thanks for the advice guys, i'll have a play with it today. I think maybe its just a totally different system to what was in the golf. Just a case of getting used to it perhaps. The vents are blowing very cold air when set to lo so thats a good sign. I'm having someone check it next week as well.

Sounds like it is working then.

Try leaving on AUTO with ECON turned off, set the temp to 16 and leave all vents open.

You should get cold air through like that.

With the climate control it regulates the amount of refrigerant being pumped round the A/C system so on a warm day it may only blow cool air to drop the car by a couple of degrees instead a blast of air at -2 followed by warmer air

A bit of a thread revival, but I've got my car booked in tomorrow to try and get this fixed....it's driving me bonkers!

I kept getting error codes on the centre flap motor on mine, which is what was causing the ticking.

I did a few recalibrations within VCDS and it still kept coming back.

I then found the sequential tests, ran these a few times which operated all flaps, one by one, from open to closed and since then no strange noises or error codes.

So, you may not need anything replacing to fix this permanently, just some perseverance with VCDS!

I didn't think you could tweak it with VCDS? I've scanned mine and don't get any errors. I've also done the self system reset, but the clicking is still there. The car is under warranty so thought I'd just stick it into the garage, no doubt they'll fob me off with some rubbish reason.

I think it was the output tests I used, not sure will have to look tomorrow. It wasn't the calibration that I ran.

It is the one where it shows the min and max values it is trying to achieve and then cycles the flaps between the two values. The centre flap on mine didn't quite reach one of the values, so I kept repeating the test. It never got all the way there (was about 4 or 5 short, whereas all the others got to within 1-2 of the aimed for value) and I thought it hadn't made any difference.

Since then (about a month) I haven't had the code re-appear, before it would be back within a few minutes of operation. It must have freed something up, or taking the actual min and max as the new learned values?

Would be good to get some more info on those output tests Andy, as mine still clicks occasionally, although it is better since I ran the calibration 'button pressing' sequence

Cheers,

Steve

P.S. any further with your convenience module work?

No further with the CCM - I might be able to borrow VCDS again this weekend, if not I will have to meet up with Mike. This last weekend was no good for either us - I decided to go fishing in the pouring rain instead

When I next get VCDS connected I will find the bit I used - I know you can perform a calibration from within VCDS, but judging by the strange symbols on the Climate display it does the same as the button press method.

I am sure it was the sequential output tests, need to get connected to be sure though.

Well mine is back from the dealer, the noise is less but still there. But at least by going in its highlighted the recall for the coil packs.

Would be good to get some more info on those output tests Andy, as mine still clicks occasionally, although it is better since I ran the calibration 'button pressing' sequence

Cheers,

Steve

P.S. any further with your convenience module work?

Steve - CCM done and dusted - posted an update in the thread.

Whilst I was hooked up to VCDS at Mike's I checked this out and go into the HVAC module and select the output tests. Run them one by one - you have to keep clicking start or next, but you can leave each particular flap running for a minute and see it moving between the 2 extremes. From memory it shows 4 values - current value, target value, min value and max value. What it will do is keep cycling the target value between the min and max values and you can see the actual value. It will make sense (honest) when you see it in action. I did this and left the Centre Flap one running for a while and it seems to have learned the new min and max values so no longer thinks it is getting stuck, or it has just freed something up. Anyway, no more error codes about a sticking flap motor and no more odd clicking noises.

Thanks Andy. This is what I thought you were referring to from your earlier posts, so I went through that at the end of last week. Was checking to see if my AC re-gas had sorted the HVAC error code on mine - which it has and the system is now ice cold which is great news.

So yes, went through those tests and left each one running for a minute before moving to the next. And as you say, it seems to have quietened down the system - for now at least, will just have to see how long it lasts!

Cheers,

Steve

So how much was missing on your Maxidot Mike?

And yes, I am an eternal optimist! Least I know it'll be fully capable of properly HEATING the air now, and removing humidity. But there's still time for an Indian Summer!

Ah yes - know the options you mean. If it's any consolation my OEM fitment Maxidot doesn't have these either. Nice to have the options immediately on screen I suppose, but there is something satisfying with going into VCDS for that sort of thing

Plus, personally, things like alarm chirp are the ones I set and then leave alone. Don't think I'd ever feel the need to amend?

Know what you mean though, when you know there is the potential for them to appear - and you're denied the privilege :yes:

Andy, thanks for showing me this. I've reset my climate a couple of times with the buttons, it does improve things, but within a couple of weeks it starts clicking away again!

Oh, and thanks a bunch for letting me see just how much more the new CCM can display in the maxidot.You do realise that this little project of yours is now going to be costing me money as well -- I hadn't realised how much was missing from my maxidot!!!!!!!

Steve, you choose your time to get your AC "ice cold", don't you? . I've had HEATERS on the last couple of days, not my AC!

Me too , having my Aircon serviced with my mot 15th September, been too busy till then

Steve - CCM done and dusted - posted an update in the thread.

Whilst I was hooked up to VCDS at Mike's I checked this out and go into the HVAC module and select the output tests. Run them one by one - you have to keep clicking start or next, but you can leave each particular flap running for a minute and see it moving between the 2 extremes. From memory it shows 4 values - current value, target value, min value and max value. What it will do is keep cycling the target value between the min and max values and you can see the actual value. It will make sense (honest) when you see it in action. I did this and left the Centre Flap one running for a while and it seems to have learned the new min and max values so no longer thinks it is getting stuck, or it has just freed something up. Anyway, no more error codes about a sticking flap motor and no more odd clicking noises.

Andy, top guy, cracking info! I took mine into a dealer for them to do the simple reset, £45 later for 30 mins labour (even though they had my car all day), I was told 'that's normal' and the clicking is still there. 20 mins outside my house with VCDS, armed with your info...the clicking has gone! And dealers wonder why people refer to them as 'Stealers'

Andy, top guy, cracking info! I took mine into a dealer for them to do the simple reset, £45 later for 30 mins labour (even though they had my car all day), I was told 'that's normal' and the clicking is still there. 20 mins outside my house with VCDS, armed with your info...the clicking has gone! And dealers wonder why people refer to them as 'Stealers'

Just sums up dealers eh.

I just love the 'it's normal' comment. Which is then blown out of the water as soon as you compare it with another Octavia.... that doesn't do it. You then have the same system in two cars exhibiting different behaviour. How is that then 'normal', if every car doesn't do it?

Anyway, for the record I can also report mine has stopped doing this almost entirely after running through the tests. I can still hear the flaps a little when I first start up but it's much quieter and I put that down to the system just starting up. After that though, it's spot on.

To note, you might need to repeat the tests every once in a while, but you'll know when that's required as the clicking will come back

Cheers,

Steve.

I would like to try this "reset" also, could you please confirm which button to hold down along with the ECON as I'm unclear sorry.

Also do they need to be held down and then turn the ignition to the on position.

When I hold down the ECON and the Recirculate arrow I get a F4A error.

Suppose that's another benefit of running the reset through VCDS too, as it allows you to monitor the values and re-run as necessary. When I ran it via the climate buttons the result wasn't as effective.

Whereabouts in the country are you Chris? Sure we can find you someone nearby to connect up with VCDS