Mercedes-Benz 2009 SLR McLaren Roadster Automobile User Manual


 
195
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 ( page 186).
The indicator lamp on button comes
on.
Deactivating
̈ Press button T ( page 186).
The indicator lamp on button 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
ț if the coolant temperature is too low
i
How long the system will provide heating
depends on the coolant temperature and the
selected temperature. The blower will run at low
speed regardless of the air distribution control
setting.