62
Ventilation
ADDITIONAL HEATING
Vehicles fitted with an HDi engine may be
fitted with a heater. When the engine is at
idle or the vehicle is stationary, it is normal
to notice a high-pitched whistling noise and
a slight emission of smoke and odour.
Rear ventilation
Coolant circuit heater
This is an additional and separate system
which heats the Diesel engine hot coolant
loop to make starting easier.
It improves the demisting and defrosting
performance.
63
Ventilation
EASE OF USE and COMFOR
T
3
Have the heater checked at least
once a year at the beginning of winter.
Maintenance and repairs should only be
carried out by a CITROËN dealer or a
qualified workshop. Use recommended
replacement parts only.
Good practice
To avoid any risk of poisoning or
asphyxiation, the heater must not be used,
even for short periods, in an enclosed space
such as a garage or workshop which is not
fitted with an exhaust gas extraction system.
Do not park the vehicle on an inflammable
surface (dry grass, dead leaves, paper…),
there is a risk of fire.
The temperature near the heater must not
exceed 120 °C. A temperature higher than
this (for example in the case of painting in
an oven) could damage the components of
the electronic circuits.
The heater is supplied by the vehicle's fuel
tank. Ensure that the low fuel warning lamp
is not on.
