Mercedes-Benz SL-Class - Manual (Page 192)

190
Controls in detail
Automatic climate control
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
̈ Turn the SmartKey in the starter switch
to position 1 or 0 or remove it from the
starter switch.
̈ Press button T ( ୴ page 183).
The indicator lamp on button T
comes on.
Deactivating
̈ Press button T ( ୴ page 183).
The indicator lamp on button T
goes out.
The residual heat is automatically turned
off:
ț when the ignition is switched on
ț after about 30 minutes
ț if the battery voltage drops
i
How long the system will provide heat-
ing depends on the coolant tempera-
ture and the temperature set by the
operator. The blower will run at speed
setting 1 regardless of the air distribu-
tion control setting.