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Programming the function
One-Time
1. Highlight One-Time and press
the right arrow button.
2. Press the OK button and the
hours flash. Use the up and down
arrow buttons to adjust the
individual settings and the left and
right arrow buttons to move to the
next or previous setting.
3. When you have finished, press the
OK button again to confirm the
settings.
Active now
Highlight Active now and press the
OK button. A cross appears in the
box next to the function to show that
the heater is activated.
To deactivate the heater, highlight
Active now and press the OK
button again.
Diesel auxiliary heater
(depending on country)
The diesel auxiliary heater (PTC
electrical heater) aids in warming the
engine and the interior compartment
on vehicles with diesel engines. It is
switched on or off automatically
depending on the outside
temperature, the coolant
temperature and the alternator load.
Climate control
Fuel operated heater
(depending on country)
The fuel operated heater aids in
warming the engine and the interior
compartment on vehicles with a
petrol or diesel engine. It is switched
on or off automatically depending on
the outside temperature and the
coolant temperature, unless you
have deactivated it. When the fuel
operated heater is operating, a
message appears in the information
display. See Information displays
(page 88).
To deactivate the fuel operated
heater:
E70499
1. Press the right arrow button on
2. Highlight Setup with the up and
125
the steering wheel to enter the
main menu.
down arrow buttons and press
the right arrow button.
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