Heater Booster System* For Vehicles With A Diesel Engine - Mercedes-Benz CLK-Class Owner's Manual

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Heater booster system* for vehicles with a diesel engine

Heater booster system* for vehicles
with a diesel engine
During the warm-up phase after the engine
is started, the heater booster system
ensures that:
the engine reaches normal operating
temperature more quickly
the vehicle interior is heated more
quickly
The heater booster system is switched on
when:
the heater booster system is activated
the outside temperature is below 8 °C
the coolant temperature is below
70 °C
174
You can use the operating system to con-
figure the settings for heater booster sys-
tem operation ( page 128)
:
Automatic
The heater booster system is activated
and is switched on and off automati-
cally as required
:
Off
The heater booster system is deacti-
vated
Using Thermatic/Thermotronic*
off:
AC-OFF
The heater booster system and cooling
can be switched on or off using the
± button
Thermatic ( page 154)
Thermotronic* ( page 164)
The heater booster system is switched
off if the indicator lamp in the ± but-
ton is lit.