My C/C seems to have gone "funny".

 

Today on a long journey I was getting less and less heat, the car was steaming up in the cold air, and I had to get back home with both front windows slightly down to get some ventilation.

The engine coolant temperature is fine, the gauge is normal, the fan runs at full speed on full cold setting, but drops to a whisper on full heat - with no heat coming out.

The re-circ button is lit all the time, so I don't know if the re-circ is on or not! Maybe a flap motor mech is gummed up? A temperature sensor, I can see one in the driver's side dash vent?

 

I seem to remember a re-set procedure, but can't find it, but it might be worth a try? Otherwise it's a dealer visit 😩

 

Thanks, just tried it and it seems to work without the engine running. Full blast on hot or cold now. Not the link I can vaguely remember, but very helpful.

 

There is a wheezing/groaning flap movement which I've had for a couple of years now, so next job is to find out if the flap mech can be reached from say above the pollen filter 

I use aircon to clear the car, never recirc. it doesn't take the moisture out of the air and the car fugs up.

2 hours ago, gumdrop said:

I use aircon to clear the car, never recirc. it doesn't take the moisture out of the air and the car fugs up.

 

Re-circ is quiet useful. On a cold morning I use it to keep the screen clear whilst not robbing the engine coolant of too much heat during engine warm up.

When the temp gauge is nearly normal and oil temp is climbing, I can switch it off.

 

On really hot days when left parked in the sun, open all windows and drive off, then close all windows, C/C on with re-circ until the temperature starts dropping, then switch it off.

 

That's what it's designed for 😉

 

The only time I use recirc is when we are going thru smoke or a vehicle ahead is smoking etc, or for a few minutes after startup if temperature is below zero.
It does not help with demisting much as it is recirculating the damp air.

2 hours ago, Yety said:

 

Re-circ is quiet useful. On a cold morning I use it to keep the screen clear whilst not robbing the engine coolant of too much heat during engine warm up.

When the temp gauge is nearly normal and oil temp is climbing, I can switch it off.

 

On really hot days when left parked in the sun, open all windows and drive off, then close all windows, C/C on with re-circ until the temperature starts dropping, then switch it off.

 

That's what it's designed for 😉

 

It is designed for a quick cabin warm up, as it carries a lot of warm moist air which will "steam" up the colder window glass.

I use air con. and balance it with the heater to make it comfortable and as mist free as possible.

Well, I have no problem with steaming up whatever the weather.

 

Re-circ is used at least twice by the ecu, windscreen washer operation, and selecting reverse gear - you can hear the flaps moving and change of fan motor noise.

 

I thought A/C condensed moisture out of the air, hence the water trail from under the car.

 

Anyway - each to their own 😉

^   +1

Thought this might dispel a few myths about C/C, just trying to be helpful. 

 

10 Tips on How to Use Air-conditioning Properly - ŠKODA Storyboard (skoda-storyboard.com)