Hi,

I have that PTC electric heater element factory installed on my Superb but I don't know how to activate it. I guess it should start giving warm air inside the cabin as soon as I start the car but today could'nt operate it. If any of you guys have any idea on how to operate it ant tell me wheather I should press some kind of button to turn it on and off please say so.

Thanks in advance! 

See this post http://www.briskoda.net/forums/topic/220727-option-code-or-part-number-for-ptc-heater-element/#entry2835042

Don't they come on with the max heater setting?

I guess there has to be a temperature difference between the outside and the desired temperature like about 20 degrees celcius. Outside was about 9 degrees I tried to turn the PTC on by gradually increasing the heater setting but nothing changed. I will try it again in a much colder day when I start the car and when the engine is cold.  

Thank you wokwon for the post you sent. 

gadgetman I tried the max heater setting but I could'nt feel the difference... If you have any suggestions too, I will be very happy to try. Thanks.

Turn temp select to MAX, or press MAX Defrost.  Count to 5 then set back to your normal settings.

 

It's not blazingly hot, just warmish.

I guess there has to be a temperature difference between the outside and the desired temperature like about 20 degrees celcius. Outside was about 9 degrees I tried to turn the PTC on by gradually increasing the heater setting but nothing changed. I will try it again in a much colder day when I start the car and when the engine is cold.

Thank you wokwon for the post you sent.

The ptc heater is only used to give warm air until the engine is hot enough to take over. I'm sure it shouldn't always be on.

I can't even remember which car this page was describing, but I would guess the system is similar in operation throughout VAG:

 

 

Sorry about the image quality.

 

Owing to the alternator load factor interlock, it may be best to raise the engine revs (and leave lights off) if you want to get the PTC working before setting off.  The combination of glowplugs/lights/rear-screen heater and just having run the starter motor may mean that the alternator load factor stays above 50% at idle revs for a while after starting, inhibiting the PTC.

wokwon and gadgetman, thank you both for your explanations and wino for the informative picture you've attached. Next time I'll try it 'knowing' something