Driving
5.6 Heating and air-conditioning system
5 - 72 3 302 709 en Operating manual
GMK5150L
12.01.2018
H
This section describes how to switch on manually. The auxiliary heater can
also be switched on automatically;
à Storing the heating start, p. 5 - 74.
• Switch on the ignition; à Switch the ignition on, p. 4 - 9.
• Press the button (1) once. The auxiliary
heater is switched on and the control panel
and buttons are illuminated.
The status of the auxiliary water heating
system is indicated by the coloured light on
the button (1):
Menu control
The jog-dial (rotary push button) (1):
– turn to select,
– press to confirm.
Setting the temperature
• Turn switch (1) to the desired temperature.
If the switch (1) is turned as far as possible A (
Cold), the auxiliary heater is
not switched on.
The auxiliary heater only supports the heating capacity of the standard heat-
ing system as long as the engine is cold. If the engine is warm, the heater is
switched off. However, the pump for the auxiliary heater continues to run
until you switch the auxiliary heater off.
Lights up green: Heater operating
Lights up blue: Fan operating
Lights up white: Heater off – controls on
Flashing red: Error
Flashing green: Heater operation
programmed
Flashing blue: Fan operation
programmed
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