Technical Climate Control - airflow issue [broken actuator?]

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Technical Climate Control - airflow issue [broken actuator?]

update.

I spend a couple of hours today removing the entire centre console, stereo, glovebox, etc. to get at the drivers side motor thingy. I managed to remove it, but broke one of the three screw fixings. No change, nothing wrong with the motor, the flap manages full travel, so the AC being not cold one side is an issue with the AC evaporator, not the heating system. Decided to have a go with a can of refridgerent I've had in the garage a while. The pressure gauge read okay,but still only cold air on passenger side. I ran the engine for 5 mins with the AC on. I was getting warm air on drivers side and nice cool air on passenger side (right hand drive car) So, anyway I sprayed in as much of the DIY AC refill as the car would take, maybe a third of a 500g can.

Bonanza, cold air both sides.

In short, my AC system is leaking as it was regassed properly only maybe 2 months ago. Oh joy. Only need AC in summer, so will keep topping up when the AC gets poor, then sell the car in autumn. I can'y be having with the expense of getting it fixed.

PS, it is impossible to remove the 3rd screw on the drivers side heater control motor as the screw faced the inside of a steel box section of the car. I could barely feel the bolt head with fingers bend in a very awkward position.
 
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An update to a "used" thread, but this is an important thread. It really explains much of the problems with the flaps. The flaps don't seem to be broken, but it's those connectors between the servos and the flaps.

Heres my contribution:

It was getting cold. This means negative C°. Icy windscreens in and out. Usually just dampy fogged windows on the inside that worsens when people get in. Then... tadaaa: No hot air on the front windows. Damn. It was impossible to drive. Have to let the car idle for 20 minutes before driving, and that's not good for economy or environment. So... I have been diving in and up the dash.

Here are some pictures.

duggafrontruteutant.jpg


duggafrontruteinant.jpg

Not very fun (or legal) driving with this.

airconkontroll.jpg

Pressing "defrost" results in full fan speed, hot air, but nothing up where it should.

defrosttannhjul02.jpg

Defroster servo was working 100%. Picture is taken straight upwards on a LH driven car.

defrosttannhjul01.jpg

But the gear wasn't rotating? Picture is taken straight upwards.

defrostservo.jpg

Managed to pull off the servo, after some (not true) local swearing. I have the steering wheel shaft and the steering servo engine gadgets as obstacles. Managed to twist in, hook up a flashlight and unscrew the screws. It is obvious like in previous posts here that the connector between the servo and the flap is cut straight off.

defrosttannhjul03.jpg

And the rest of this connector is resting nicely over the flap's gear. Well, it has to be done. I hope these things are orderable here aswell.

M.
 
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wwow this def has to be turned into a guide. i was reluctant to troubleshoot the problem i also had on the defroster and just had manually moved with my finger the gear so the air constantly is blowing on the window but wasnt to my liking. i will def try and taket he motor off to see if i had sheared the gears also
 
Hello guys, I have a question... My air con doesn't direct the air to lower (feet) area. Now , although eLearn procedure for getting to those cogs/motors seems too challenging for me, I was wondering would it be possible to somehow manually open stuck vent flap? It wouldn't bother me that much if at least some air would come out through those floor vents.

Thanks in advance =)
 
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Re: (yet another) Climate Control Problem

I believe they are the same as the air mixture actuator drive shaft. Photo 361 shows a sheared shaft, Photo 392 shows an actuator with drive shaft clipped in. These drive shafts/dowels are available in packs of 4.

where do you get these from as mine broke too
 
My AC system has had a moment, the passenger side is really cold at the vents (both sides set to LO, recirc, AC on), the drivers side is just ambient air, or only a touch below. I've tried the heater system reboot procedure, pressing the two buttons, getting the countdown, lots of flaps moving about etc. Still the problem persists. I can change the temperature to go from really hot, down to outside temperature air coming in, but it won't get AC cold on drivers side! Even from cold so no engine temp to warm the air up. The full range of temps works fine on passenger side, from HI all through LO, hot air, down to icy cold AC.

Any ideas?

Cheers

Andy
Hi I have a similar problem and would like to know how to do the heater system reboot. I don't think I'll be pulling everything to bits to find out if its a drive shaft or th elike though, I barely have time to put petrol in it these days. thanks, ANDY
 

Great to see you're still around, Morty Mort (y)

Didn't we meet in the Uno section about eight years ago...?

I did get a smile from your posts on that air conditioning thread, particularly the one about "while you're there, twisted up in pain, change the pollen filter". I think you have a special skill to see the bright side. And the reference to Technic LEGO thread blocks (or worm gears) made me realise that we both learned engineering in the same way.

I have a Stilo again, I bought one when they were a new and expensive car. I thought I knew all about how it worked. Six years on, it'll be interesting finding out how it doesn't work.

-Alex
 
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Great to see you're still around, Morty Mort (y)

Didn't we meet in the Uno section about eight years ago...?

Yes, we did. I entered the Uno section after the Ritmo self destructed... Good to hear from you again. :)

... we both learned engineering in the same way.

Didn't even know how to change a tire at first (which we have to twice each year).

.:M:.
 
Its cold on left side and hot on right side

Hehe, been there... You should find the other thread about this issue. It's also very illustrative.

Either the actuator is gone, or the little gear has snapped. If the actuator travels too far, the gear will snap instead of destroying the inside of the vent unit. I have seen a fix here somewhere where a broken gear was glued and screwed together. Don't do that. It will just cause more damage (dash out job) if it's the actuator that needs replacing.
 
Hi.

So I read trough all of the topics what I found in the forum because I have similar problem.
Sometimes my car start to heat with full temperature and usualy to the windows direction. If I restart the car ( yes you heard well :) ) everything is working as it should.
Yesterday I did the disassembly of my dashboard yesterday. It seems mechanical point of view everything is OK. What was really strange is that when I went online with MultiEcuscan than I was only able to actuate the right side motors. The motors of the left side did nothing. So if I pressed F10 than the motors won't moved. But if I changed the setting on the climate control unit than everything worked.
So can it be a contorll unit fail or mybe my temperature sensors went wrong?
 
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