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If the air conditioning cannot be turned
on again, this indicates that the air con-
ditioning is losing refrigerant. The com-
pressor has turned itself off.
Have the air conditioning checked at
the nearest authorized Mercedes-Benz
Center.
Residual heat and ventilation (available
on climate control panel design A only)
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 0 or 1, or remove it from
the starter switch.
Press button T( page 206).
REST in the display comes on.
Deactivating
Press button T( page 206).
REST in the display goes out.
Controls in detail
4-zone automatic climate control*
The residual heat is automatically turned
off
when the ignition is switched on
after about 30 minutes
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.
215
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