
The auxiliary heater and ventilation 
system allows the vehicle interior to be 
heated in winter and ventilated in 
summer. Operation of the system 
allows ice, condensation and a thin 
covering of snow to be cleared from the 
windscreen. The auxiliary heater is 
supplied with fuel from the vehicle fuel 
tank and can be operated when the 
vehicle is stationary with the ignition 
switched off. The auxiliary ventilation 
system is supplied with power by the 
12-volt vehicle battery.
Auxiliary heater exhaust system
The emissions produced by the auxiliary heater are removed via an exhaust pipe fitted underneath 
the vehicle. The exhaust pipe must not be blocked by snow, mud or other objects.
Switching the auxiliary heater and auxiliary ventilation on and off
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The auxiliary heating can be operated only when the ignition is switched off. If the ignition is 
switched on while the auxiliary heater is working, the auxiliary heater continues to run to provide 
additional heat.
Switching on the auxiliary heater
•Press the immediate heat button  on the control panel ⇒ Front controls.
•Press the button on the remote control ⇒ Remote control.
•Program a departure time ⇒ Programming the auxiliary heater and auxiliary ventilation.
The auxiliary heater heats up the vehicle interior to a temperature of at least 22°C.
The auxiliary heater will not switch on if the 12-volt vehicle battery has a low charge level or the fuel 
tank is empty.
Switching off the auxiliary heater manually
•Press the immediate heat button  on the control panel ⇒ Front controls.
•Press the button on the remote control ⇒ Remote control.
•Touch the  function button in the Infotainment system ⇒ Programming the auxiliary heater 
and auxiliary ventilation.
Auxiliary heater switches off automatically
•When the programmed departure time is reached, or after the programmed operating period 
has elapsed ⇒ Programming the auxiliary heater and auxiliary ventilation.
•If the indicator lamp  or  lights up (fuel gaugeyf  ⇒ Fuel gauge.
•If the charge level of the 12-volt vehicle battery is too low ⇒ 12-volt vehicle battery.
The fumes from the auxiliary heater contain among other things carbon monoxide, which 
is an odourless and colourless poisonous gas. Carbon monoxide can cause people to 
lose consciousness. It can also cause death.
•Never start or run the auxiliary heater in unventilated or closed rooms.
•Never programme the auxiliary heater so that it is switched on and run in unventilated 
or enclosed spaces.
WARNING
Parts of the auxiliary heater exhaust system become very hot. This can cause fires.
•Park the vehicle so that no part of the exhaust system can come into contact with any 
inflammable material underneath the vehicle, e.g. dry grass.
WARNING
Do not place any food, medicine or any other temperature-sensitive items in front of the 
vents. Heat-sensitive food, medicine and other items could be either damaged or rendered 
useless.
NOTICE 

The auxiliary heater runs on for a short time after it is switched off manually or automatically so that 
the remaining fuel in the system can be burnt off.
When the vehicle is at a standstill, the auxiliary heater can be activated up to three times in 
succession for the maximum operating duration.
Operating noises can be heard if the auxiliary heater is switched on.
The 12-volt battery will discharge if the auxiliary heater or ventilation is run several times 
over an extended period. Drive the vehicle for an appropriate distance in order to recharge the 12-
volt vehicle battery.
When parked on an incline, the fuel gauge indication (just above the reserve quantityyf  P D \  
be inaccurate and lead to functional restrictions of the auxiliary heater.
The auxiliary heater may switch on automatically as a supplementary heating measure when 
the engine is started at temperatures below +5°C (+41°Fyf   7 K H  V X S S O H P H Q W D U \  K H D W L Q J  I X Q F W L R Q  L V  
switched off again automatically after a short time.
Programming the auxiliary heater and auxiliary ventilation
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Opening the Auxiliary heater menu
The auxiliary heater is programmed in the Infotainment system.
m/k/a997MK Manual air conditioning system
•Press the  button on the Infotainment system.
•Touch the Vehicle and  function buttons.
m/k/a997MK Climatronic
•Press the  button on the control panel.
•Touch the  function button.
Changing the operating mode
•Open the Auxiliary heater menu.
•Touch the Heating or Ventilation function buttons to change the operating mode.
At high outside temperatures, the auxiliary ventilation function supplies fresh air to the vehicle 
interior and helps prevent a build-up of heat.
Programming the auxiliary heater
Activation is always for one heating or ventilation period only. The departure time must be activated 
for every start.
•Before programming, check that the date and time set in the vehicle are correct ⇒ Vehicle 
settings menu.
•Open the Auxiliary heater menu.
•Press the Adjust button.
•Choose one of the memory locations for a Departure time.
•Touch the Activate function button.
m/k/a995MKManual air conditioning system: the programmed departure time determines 
the time at which the auxiliary heater or ventilation should switch off. The point at which the heating 
or ventilation process starts is determined depending on the programmed operating period.
m/k/a995MK Climatronic: on the basis of the programmed departure time, the vehicle 
automatically calculates the start time for heating or ventilation to the currently set temperature 
depending on the outside temperature.
•Touch the Running time function button under Adjust to set the auxiliary heater 
running time after the heater is switched on with the immediate heat button  or using the 
remote control. 

Deactivating Car-Net services
Fig. 180 Retrofitted sticker in the vehicle if Volkswagen Car-Net services have been permanently 
deactivated.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
If you sell the vehicle or lend it for a longer period, inform the user about the deactivated services or 
deactivated control unit.
If your vehicle is already equipped with the legally required emergency call function eCall, this 
function will not be affected by the deactivation.
Temporary deactivation
If your vehicle is in a workshop, you may find that the service technicians have deactivated 
individual or all services for the duration of the workshop visit. The services will be available again 
once the work is complete. Please contact your workshop if necessary. Individual Volkswagen Car-
Net services can be deactivated manually via the Infotainment system. The services can then be 
run again when the deactivation is cancelled in the Infotainment system. Deactivated services are 
marked in the Car-Net portal on the start page with a corresponding indication.
Permanent deactivation
In order to permanently deactivate Car-Net functions in vehicles with the Security & Service or 
e-Remote packages, the online connectivity unit must be deactivated by a qualified workshop at 
your request.
Once the on-board connectivity unit has been deactivated, the workshop will attach a sticker 
⇒ Fig. 180 to your vehicle (e.g. on the roof consoleyf   7 K H  V W L F N H U  V K R Z V  W K D W  Q H L W K H U  W K H  
Volkswagen emergency call service nor the automatic accident notification will work. All other 
e-Remote and Security & Service services will also be deactivated.
Interferences
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Even when the above-mentioned requirements for using the services are met, the functionality of 
the Car-Net services can be impaired or interrupted due to factors that lie outside the control of 
Volkswagen AG. Such factors include in particular:
•Maintenance, repairs, software updates and technical changes to your service provider’s 
telecommunication systems, satellites, servers and databases.
•The telecommunications provider has changed the mobile telecommunication standard for 
transferring mobile data, e.g. from UMTS to EDGE or GPRS
•An existing mobile telecommunications standard has been shut down by the 
telecommunications provider.
•Impairment or interruption to mobile and GPS reception, e.g. due to high speeds, weather, 
landscape, interfering devices or intensive use of the mobile network in the relevant cells.
•The availability, completeness or correctness of information provided by third parties, e.g. 
maps.
•Countries where Volkswagen Car-Net services are not available.
Volkswagen Car-Net services
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Data transmission
The data for using the Volkswagen Car-Net Guide & Inform services are transferred via your mobile 
device with data option or a SIM card with data option. For some services, your mobile device or 
your SIM card needs to support a specific data connection type, e.g. rSAP.
Data transmission for running the Volkswagen Car-Net e-Remote and Security & Service services 
is performed using a factory-fitted control unit with an integrated SIM card with data option.
Availability
Volkswagen Car-Net services can be subject to a limited period or changed, set, deactivated, 
reactivated and expanded without prior notice.
Some Volkswagen Car-Net services contain external information that originates from third parties 
(e.g. mapsyf   9 R O N V Z D J H Q  $ *  L V  Q R W  U H V S R Q V L E O H  I R U  H [ W H U Q D O  L Q I R U P D W L R Q  E H L Q J  F R U U H F W   X S  W R  G D W H  
and complete, or for any infringement of third-party rights.
1yf 

Information in accordance with the EU Chemicals Regulation 
REACH
In accordance with the European regulations on chemicals, known as REACH, Volkswagen would 
like to inform you about the substances that may be found in your vehicle.
You can access this information online using your vehicle identification number ⇒ Technical data:
https://reachinfo.volkswagen.com
Declaration of conformity
The individual manufacturer declares herewith that the following products conform, at the time of 
vehicle production, with the basic requirements and other relevant laws and regulations, including 
FCC Part 15.19, FCC Part 15.21 and RSS-Gen Issue 1:
Radio-based equipment
•Electronic immobiliser.
•Vehicle key.
•Keyless Access locking and starting system.
•Adaptive Cruise Control (ACCyf .
•Area monitoring system (Front Assistyf  L Q F O X G L Q J  &