Activating/deactivating the residual heat function
It is possible to make use of the residual heat of the engine to continue heating the stationary vehicle for up to 30 minutes after the engine has been switched off. The heating time depends on the temperature that has been set.
The blower will run at a low speed
regardless of the airflow setting.
If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
Turn the SmartKey to position 0 in the
ignition lock or remove it.
To activate: press the 
rocker switch
up or down.
The indicator lamp in the rocker
switch lights up.
To deactivate: press the
rocker
switch up or down.
The indicator lamp in the rocker
switch goes out.
Residual heat is deactivated
automatically:
• after about 30 minutes
• when the ignition is switched on
• if the battery voltage drops
• if the coolant temperature is too low
See also:
Notes on using 3-zone automatic
climate control
The following contains notes and
recommendations on optimum operation of
automatic climate control.
- Activate climate control using the
and
buttons. The indicator lamps in the
and
butt ...
Important safety notes
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, ...
Redialing
The on-board computer saves the last names
or numbers dialed in the redial memory.
► Press the
button on the
steering wheel to select the Telephone
menu.
► Press the
button to swi ...