The heating cannot be switched on or it only works
to a limited extent
Independent heating
and ventilation
— The heating and defrost/defog functions work more
efficiently when the engine is warm.
Introduction to the topic
— If the fault persists, go to a specialized workshop
do.
With separate heating and ventilation, the passenger
compartment can be heated in winter and ventilated in
summer. You can also mist the windshield and leave it
free of ice and snow (if it is a thin layer). The independent
heater works with fuel from the vehicle's tank and can
be used when the vehicle is stationary and the ignition
is switched off. The independent vent receives electrical
power from the 12-volt battery.
the windows fog up
The windows mist up when their temperature is below
ambient temperature and the air humidity is very high. Cold
air can absorb less moisture than warm air. For this reason,
the windows fog up more often in the cold seasons of the
year.
— To improve heating and cooling performance, keep the
air intake located in front of the windshield free of ice,
snow or leaves ÿ p. 367.
Independent heater exhaust system The exhaust gases
from the independent heater exit through an exhaust pipe
located in the underbody of the vehicle. Do not allow the
exhaust pipe to become blocked by snow, mud or objects.
— To allow air to circulate in the passenger compartment
from the front to the rear, leave the ventilation slots at
the rear of the luggage compartment free.
— Switch on the defrost/defog function ÿ p. 124.
WARNING
The exhaust gases from the independent heater
contain, among other substances, carbon monoxide, a
colorless, odorless and toxic gas.
The temperature unit is not set correctly
mind
Carbon monoxide can cause unconsciousness and
death.
— Change the temperature units of all vehicle temperature
gauges in the infotainment system ÿ p. 35.
· Never turn on the independent heating or never leave it
running when the vehicle is in closed or unventilated
rooms.
Water or steam under the vehicle
When the outside humidity and ambient temperature are
high, condensation water may drip from the cooling
· Never program the independent heating so that it turns
evaporator and form a small puddle under the vehicle. This
on and works in an enclosed area or without ventilation.
is normal and does not mean there is a leak!
When the outdoor humidity is high and the room
WARNING
temperature is low, condensation water may evaporate when
the independent heating is in operation. In this case, steam
may be escaping from under the vehicle. This does not mean
that the vehicle has any kind of damage.
Some parts of the independent heater exhaust system
get very hot, which can cause fires.
· Park the vehicle so that no exhaust system
component comes into contact with easily
flammable materials that may be found under the
vehicle, such as dry grass.
NOTICE
The air that comes out of the diffusers can damage or render
unusable food, medicines or objects sensitive to heat or cold.
3 G 0 0 1 2 7 6 0 A H
129
Independent heating and ventilation
· Do not place food, medicines or other objects
sensitive to cold or heat in front of the air vents.
— When the charge of the 12 volt battery drops
excessively.
Once switched off, manually or automatically, the
independent heating will continue to run for a short time
to burn any fuel left in the system.
Switch independent
heating and ventilation on
and off
Using the independent heater as an additional heater
When the engine is started, the auxiliary heater can
continue to function as an additional heating measure.
The following conditions must be met for this: — The
automatic auxiliary heater function is activated in the
climate settings of the infotainment system.
Note and , at the beginningof this ca
chapter, on page 129.
The independent heating works both with the ignition on
and off.
Open the Independent heating menu
- The outside temperature is lower than +5 °C
(+41 °F).
Manual climate control —
Press the infotainment system button.
The additional heating measure is automatically
.
switched off after a certain time.
— Press the Vehicle function buttons and
Climatronic
With the vehicle stationary, the maximum operating
time of the independent heating may only be
activated three times in a row at most.
— Open the climate settings in the infotainment system.
— Press the function button
.
When the independent heating is switched on,
Connect independent heating
you hear noises caused by the operation of the
independent heating.
The independent heating can be connected in the
following ways:
If the independent heating or ventilation is used
— Press the immediate heating key of the pa
air conditioning control panel.
several times during a period of
extended time, the 12 volt battery will discharge. In
order for the battery to recharge, drive it from time to time
for a sufficiently long distance.
— OR: press the key on the remote control for
radio frequency ÿ p. 131.
— OR: Schedule a departure time ÿ p. 130.
If the 12 volt battery is very low or the fuel tank is empty,
If the vehicle is parked on a downhill grade,
it is not possible to switch on the independent heating.
the fuel level indication (when the level is just
above the reserve level) may not be accurate and the
operation of the independent heater may be limited.
Switch off the independent heating manually
The independent heating can be switched off manually in
the following ways: — Press the immediate heating
button on the climate control panel.
Schedule independent
heating and ventilation
— OR: press the key on the remote control for
radio frequency ÿ p. 131.
Note and , at the beginningof this ca
The heating is switched off automatically
chapter, on page 129.
— When the scheduled departure time arrives or the
The independent heating is programmed in the
infotainment system.
set operating time elapses ÿ p. 130.
change mode
— If the control lamp (fuel level indicator) lights up
yellow ÿ p. 22.
— Open the Independent heating menu.
130
Heating and ventilation system and climate control
— Press the Heat or Fan function buttons
closed or without ventilation. The exhaust gases from
the independent heating contain, among other
substances, carbon monoxide, a toxic, colorless and
odorless gas. Carbon monoxide can cause
unconsciousness and death.
to change modes.
In the event of high temperatures, the independent
ventilation introduces fresh air into the passenger
compartment, thus preventing the accumulation of heat.
Independent heating operating time
— Open the Independent heating menu.
Radio frequency
remote control
— Press the Adjust function button .
— Press the Duration function button to determine
nar the operating time.
Note and , at the beginningof this ca
chapter, on page 129.
The set operating time is valid when the independent
heating is switched on with the immediate heating button
or the radio remote control.
The maximum operating time of the independent heating
is 60 minutes.
Programming a departure time
You have to activate the heating or ventilation each time
you want to use it. The departure time also has to be
activated anew each time.
— Before programming, check that the faith
date and time are correctly set in the vehicle ÿ p. 31.
— Open the Independent heating menu.
— Press the Adjust function button .
Fig. 115 Independent heating: radio remote control
(left) with battery compartment (right).
— Select one of the memories for a Time of
.
exit
— Press the Activate function button
.
Switch the independent heating on and off with the
Manual climate control: The programmed departure time
determines when the heating or independent ventilation
should be switched off.
radio remote control
— Connect: Press the key for approx. 1 second. ÿ fig.
115.
The start of the heating or ventilation process is
determined based on the programmed operating time.
— Disconnect: Press the key for 1 second
aprox. ÿ fig. 115.
Climatronic: Based on the scheduled departure time and
Radio remote control LED When the keys are
the outside temperature, the vehicle automatically
calculates the start time of the heating or ventilation
pressed, the LED indicates different states ÿ fig. 115 2
.
process to reach the set temperature.
It turns on
— Green: The independent heating is switched on.
Check programming When a
departure time is activated, the yellow LED of the
immediate heating button lights up on the Climatronic
— In red: the independent heating is off
nected.
control panel for approx. 10 seconds after switching off
the ignition.
Flashes irregularly —
Green: the independent heating is blocked. The fuel
tank is almost empty, the 12 volt battery voltage is
too low or there is some fault. Refuel, ride long enough
to
WARNING
3 G 0 0 1 2 7 6 0 A H
Never program your space heater to come on and run
in a closed room.
131
Independent heating and ventilation
Let the 12 volt battery be charged or go to a
specialized workshop.
DANGER
Swallowing a 20mm diameter battery or any other button
cell battery can cause serious injury or even death in a
very short time.
Flashes regularly — Red
or green: Connection or disconnection signal not
received. Reduce the distance to the vehicle.
Keep the remote control and key fobs
Lights up or flashes —
that carry batteries, as well as spare batteries, button
batteries and other batteries larger than 20 mm,
always out of the reach of children.
In orange: The button cell battery of the RF remote control
is almost depleted. Change the button cell.
· If you suspect that someone may have swallowed a
battery, seek immediate medical attention.
range radius
The maximum range of the RF remote control is a few
hundred meters with a new button cell and optimal
conditions.
NOTICE
· The radio remote control contains electronic components.
Therefore, avoid getting it wet, receiving blows or direct
sunlight.
— Keep a distance of at least 2 meters
mo between the radio remote control and the vehicle.
· The use of inappropriate batteries can damage the radio
remote control. Therefore, always replace the old
battery with a new one of the same voltage, size and
specification.
— Avoid obstacles between the controller and the vehicle.
hiculus
— Hold the controller vertically with the antenna
ÿ fig. 115 1 up.
· When installing the battery, observe the polarity.
— Do not cover the antenna.
Dispose of used batteries in an environmentally
friendly manner.
If the weather conditions are bad, there are buildings in
the vicinity or the button cell battery is almost depleted,
the range of the controller is reduced.
The RF remote control battery may contain
perchlorate. Observe the legal provisions regarding
its disposal.
Replace the button battery of the radio remote control
If the control indicator does not light up, the remote
control button cell must be replaced.
— Insert a suitable tool, e.g. eg a screwdriver in the
recess in the control housing in the direction of the
arrow ÿ fig. 115.
— Lift the battery cover with the tool until the recesses are
exposed.
— Move the cover a little in the direction of the arrow
no.
- Remove cover.
— To remove the battery, insert e.g. eg a screwdriver in
the recess of the battery carefully.
— Lift the battery up with the screwdriver until it clicks.
release from its housing.
— Remove the battery.
— Insert a new coin cell battery of the same type so that
it clicks into the housing. When doing this, take into
account the polarity.
— Place the battery cover on the remote control case.
— Slide the cover in the opposite direction of the arrow
until it clicks ÿ fig. 115.
132
Heating and ventilation system and climate control
2024 VW Passat Owner's Manual
VW Passat B7 Service & Repair Manual
VW Passat B6 Service & Repair Manual
