Volvo XC40 2020 Owner's Manual page 217

Heater*
The heater has two subfunctions that help to
heat the passenger compartment or engine in
different situations.
The heater has two subfunctions:
Parking heater - heats the passenger com-
•
partment, if necessary, when the parking
climate control's preconditioning is acti-
vated.
Additional heater - heats the passenger
•
compartment and engine, if necessary,
during driving.
The heater is fuel-driven and is fitted inside the
engine compartment.
NOTE
When the heater is running, smoke may be
emitted from under the front part of the car
and a low hum may be heard. A ticking
sound from the fuel pump may also be
heard from the rear section of the car. This
is perfectly normal.
Battery and charging
The heater is powered by the car's starter bat-
tery. If the charge level of the starter battery is
too low, then the heater is switched off auto-
matically and the driver display shows a mes-
sage.
NOTE
Make sure that there is enough charge in
the battery if the heater needs to be used.
The car must be connected to an electrical
socket for the heater to be used for pre-
conditioning.
Fuel and refuelling
Warning label on fuel filler flap.
The heater uses fuel from the car's normal fuel
tank.
If the car is parked on a steep incline, this may
limit the supply of fuel to the heater.
If the level in the fuel tank is too low then the
heater is switched off automatically and the
driver display shows a message.
NOTE
Make sure there is enough fuel in the car's
fuel tank if the heater needs to be used.
WARNING
Fuel which spills out could be ignited.
Switch off the fuel-driven heater before
starting to refuel.
Check in the driver display that
the heater is switched off. This
symbol is lit when it is working as
a parking heater.
Related information
Climate (p. 184)
•
Parking heater* (p. 216)
•
Additional heater* (p. 217)
•
* Option/accessory.
CLIMATE
215