So if been looking at this a bit on and of for a while but havent been able to actually find enough info or managed to dig deep enough in the car to actually figure it out. 

Short summary 
- Škoda Octavia Combi 2.0 TDI DSG, 140hp (103kW), 2011, Diesel
- My car was sold in Norway (cold climate version) 

- Do not think it was much of extras on the car to be honest

 

I've read several places and heard that a lot of cars sold in cold climates come with a pre-installed AUX heater of some sort I've even got a button for it in the car that just gives me an error as it is "missing"
and if i remove the error with the OBD scanner it does the error is gone until i actually press the AUX heater button.

is there anyone here that have any idea of where is should take a look at the to figure it out?
I've added the part of the workshop manual that mentions the AUX heater without understanding much more...
 

 

S0057020020-Heating__Air_conditioning.pdf

I can't directly answer your question but can maybe help you along the way.  In the car's service book or in the wheel well there should be a 'data sticker' which gives details about the vehicle and the build options.  I've included a picture of such from one of our older cars (now deceased) to show you what you're looking for.

Once you have the details from the sticker you can look up what each 'PR Code' means on THIS website.  From there you should be able to establish whether the car actually had a heater installed and if so start your diagnostics from there.

 

Great thanks,

atleast I know that there is no AUX heater installed from any of the codes on my sticker

E0A - AAU - No special edition
1N3 - LEN - Speed-related variable steering assist (Servotronic)
4A3 - SIH - Seat heater for front seats separately controlled
7Q0 - NAV - Without navigation device
3L3 - SIE - Manual height adjustment for front seats
0G1 - GES - Gearshift lever
1D2 - AHV - Trailer hitch, removable and lockable
1NL - RAA - Trims for alloy wheels
8L5 - ANT - Roof antenna and "diversity" window antenna
8AG - RAO - Radio with CD/MP3
9P1 - SGK - Seat belt reminder, electric contact in buckle
7MG - AGM - Emission standard EU5
5SL - ASL - Left exterior mirror: aspherical
H6L - REI - Tires 225/45 R17 91W
J1D - BAT - Battery 380 A (72 Ah) (HAS BEEN REPLACED)
8QL - SLR - Key for locking system with remote control
L59 - GKV - Suspension range 59 installation control only, no requirement forecast
5RQ - ASR - Right exterior mirror, convex
4UF - AIB - Driver and front passenger airbag with front passenger airbag deactivation
7AA - EDW - Electronic engine immobilizer
8X1 - SWR - Headlamp washer system
7X0 - EPH - Without park distance control
7P4 - LOR - Manually adjustable lumbar support in front seats
1KS - BAH - Disk brakes in rear (Geomet D)
4R4 - FEH - Power windows with comfort operation andcircuit breaker
8GU - GEN - Alternator 140 A
4K3 - TKV - Radio remote controlled central locking operated from inside and SAFELOCK
9W0 - VTV - Without car phone preparation/ installation
F0A - FZS - No special purpose vehicle, standard equipment
6FB - BBO - Body-colored exterior mirror housings
B06 - TPL - Type approval country Norway
7IK - AED - Vehicle class differentiation -8WD
1AT - BRS - Electronic stability control (ESC)
3QT - RSV - 3-point seat belts in front, with pretensioner and height adjustment
9AK - HKA - Climatronic with impact pressure control, CFC-free
G07 - DFV - Shock absorption in front
7A0 - CDW - Without CD changer/CD player
3S7 - DAR - Roof rails
3FA - DEI - Without roof insert (standard roof)
4X3 - SAB - Side airbag in front, with curtain airbag
9VJ - LSE - Sound package
QN0 - SVS - Without drawers under front seats
3GA - LBH - Without cargo area
3UC - ESR - 2-seater bench and single seat, right

Just in case, is it possible that someone has retrofitted a heater - or maybe started the process and not completed it?

 

Or the code isn't on sticker. Message me with VIN if you'd like me to check further.

The Brisky thread below may be of help ...

 

 

I believe THIS is the parts catalog page for your car with auxiliary heater.