Mercedes-Benz C-Class Convertible 2021 Operator's Manual page 135

The engine is restarted automatically if:
You engage transmission position h or k.
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You depress the accelerator pedal.
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You open or close the soft top.
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An automatic engine start is required by the
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vehicle.
You release the brake pedal.
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Vehicles with a 48 V on-board electrical
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system:
You release the brake pedal on a downhill
-
gradient and the vehicle does not roll.
The vehicle rolls on a downhill gradient
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and does not automatically enter glide
mode at 15 mph (20 km/h).
ECO start/stop function symbols in the multi‐
function display:
The è symbol (green) appears when the
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vehicle is at a standstill: the engine was
switched off by the ECO start/stop function.
The ç symbol (yellow) appears when the
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vehicle is at a standstill: not all vehicle condi‐
tions for an engine stop have been met.
Neither the è nor ç symbol appears
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when the vehicle is at a standstill: an intelli‐
gent stop inhibitor was detected, for exam‐
ple, a stop sign.
If the engine was switched off by the ECO start/
stop function and you leave the vehicle, a warn‐
ing tone sounds and the engine is not restarted.
In addition, the following display message
appears in the multifunction display:
Vehicle Ready to Drive Switch the Ignition Off
Before Exiting
If you do not switch off the ignition, it is auto‐
matically switched off after three minutes.
Driving and parking 133
Deactivating or activating the ECO start/
stop function
Press button 1.
#
If indicator lamp 2 lights up, the ECO start/
stop function is activated.
% Depending on the model and the vehicle
equipment, the button may also be located
at a different position in the center console.