Operation Manual

R
the vehicle starts to roll.
R
the brake system requires this.
R
the temperature in the vehicle interior devi-
ates from the set range.
R
the system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
R
the battery's condition of charge is too low.
i
Shifting the transmission to position P
does not start the engine.
Deactivating/activating the ECO start/
stop function
C 250 and C 250 Sport
ECO button
X
To deactivate: press button :.
Indicator lamp ; and the ¤ symbol in
the multifunction display go out.
X
To activate: press button :.
Indicator lamp ; lights up.
If all conditions for automatic engine
switch-off (Y page 137) are fulfilled, the
¤ ECO symbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off (Y page 137) are fulfilled, the
¤ ECO symbol is shown in yellow in the
multifunction display.
If this is the case, the ECO start/stop func-
tion is not available.
Conditions for the automatic engine
switch-off (Y page 137).
If indicator lamp ; is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will
then not be switched off automatically when
the vehicle stops.
C 350 and C 350 4MATIC
ECO button
X
To switch off: press button :.
Indicator lamp ; goes out.
X
To switch on: press button :.
Indicator lamp ; lights up.
If the indicator lamp on the ECO button is off,
the ECO start/stop function has been deac-
tivated manually or as the result of a mal-
function.
Driving
139
Driving and parking
Z