Residual Engine Heat And Ventilation - Mercedes-Benz 2007 CL 550 Operator's Manual

Controls in detail
Automatic climate control
Convenience opening: Press
button , for approximately
2 seconds.
The side windows and/or tilt/sliding
sunroof will return to their previous po-
sition. You can release button
once the opening procedure has be-
gun. The windows and tilt/sliding sun-
roof continue opening until they have
reached their previous positions. The
indicator lamp on the button goes out.
The air recirculation mode is deactivat-
ed.
460

Residual engine heat and ventilation

With the engine switched off, it is possible
to continue to heat or ventilate the interior.
This feature makes use of the residual heat
produced by the engine.
,
i
If you switch on the residual heat function
when outside temperatures are high, only the
ventilation will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed when heating. In
case of ventilation the blower operates at higher
speed.
i
How long the system will provide heating de-
pends on
the coolant temperature
the temperature set by the operator
Activating
Switch off the ignition ( page 336).
Press button T ( page 453) up or
down.
The indicator lamp on the button
comes on.
Deactivating
Press button T ( page 453) up or
down.
The indicator lamp on the button goes
out.
i
The residual heat is automatically turned off:
when the ignition is switched on
after approximately 30 minutes
if the battery voltage drops
if the coolant temperature is too low