Ventilation temperature regulation failure

Pontstone · 22-04-2008, 15:35

Hi all,
I have a problem with my Octavia TDI from 1999
with air conditioning (not Climatronic). that´s getting more and more annoying the more the spring sun is shining.

A few months ago, I turned the temperature knob to maximum
heat, and now the ventilation temperature stays at maximum
even though I turn the knob to "cold". I checked the knob and
the wires leading to it, and they seem to be ok. I now suspect
that something is wrong with the heater package under the
dash board.

So... to my question....
Has any of you had this problem with your Octavia?
What was the cause of the problem?
Is it worth the while to dismantle the dash on my own (I am a fairly
good mechanic), or is it better to leave it to a professional (considering
the AC unit)?

I would appreciate any tips I can get... it´s getting warmer and
warmer here in Sweden....

Thanks in advance!

ap0gee · 22-04-2008, 15:36

Flap motor is the obvious thing...???

KenONeill · 23-04-2008, 12:46

Flap motor, linkage or control switch.

If you feel confident about working on a non-a/c system, go for it. There's no need to touch the a/c refrigerant circuit.

22-04-2008, 15:35	#1
Pontstone Briskodian Join Date: Jun 2004 Location: Helsingborg, Sweden Posts: 6 Thanks: 0 Thanked 1 Time in 1 Post	Ventilation temperature regulation failure Hi all, I have a problem with my Octavia TDI from 1999 with air conditioning (not Climatronic). that´s getting more and more annoying the more the spring sun is shining. A few months ago, I turned the temperature knob to maximum heat, and now the ventilation temperature stays at maximum even though I turn the knob to "cold". I checked the knob and the wires leading to it, and they seem to be ok. I now suspect that something is wrong with the heater package under the dash board. So... to my question.... Has any of you had this problem with your Octavia? What was the cause of the problem? Is it worth the while to dismantle the dash on my own (I am a fairly good mechanic), or is it better to leave it to a professional (considering the AC unit)? I would appreciate any tips I can get... it´s getting warmer and warmer here in Sweden.... Thanks in advance!

22-04-2008, 15:36	#2
ap0gee ASZ Eternal Join Date: Aug 2004 Location: Leafy Chesh-shire Posts: 6,295 Thanks: 304 Thanked 304 Times in 262 Posts	Re: Ventilation temperature regulation failure Flap motor is the obvious thing...??? __________________

23-04-2008, 12:46	#3
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 9,612 Thanks: 46 Thanked 445 Times in 438 Posts	Re: Ventilation temperature regulation failure Flap motor, linkage or control switch. If you feel confident about working on a non-a/c system, go for it. There's no need to touch the a/c refrigerant circuit.

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