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The ECO start/stop function is available in
the C, A, ;, and = drive pro‐
grams (depending on the setting).
The engine is switched off automatically in the
following situations if all vehicle conditions for
an automatic engine stop are met:
you brake the vehicle to a standstill in trans‐
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mission position h or i.
vehicles with a 48 V on-board electrical
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system: you depress the brake pedal when
travelling at a low speed.
If the system has detected one of the following
situations, the engine will not stop:
you stop at a stop sign and there is no vehi‐
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cle in front of you.
the vehicle that stopped in front of you starts
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up again.
you manoeuvre, turn the steering wheel
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sharply or engage reverse gear.
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If the system detects an intelligent stop
inhibitor, e.g. a stop sign, the engine will not
stop.
If you activate the HOLD function or engage
the park position j, the engine can be
switched off in spite of an intelligent stop
inhibitor.
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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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
-
and does not automatically enter glide
mode at 20 km/h.
ECO start/stop function symbols in the multi‐
function display:
the symbol è (green) appears when the
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vehicle is at a standstill: the engine was
switched off by the ECO start/stop function.
Driving and parking 161
the symbol ç (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 symbol è nor ç appears
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when the vehicle is at a standstill: an intelli‐
gent stop inhibitor was detected, e.g. a stop
sign.
the symbol s appears: the ECO start/
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stop function is deactivated or there is a mal‐
function.
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 is operational Switch off ignition before
exiting
If you do not switch off the ignition, the ignition
is automatically switched off after three
minutes.
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