Mercedes-Benz S-Class 2020 Operator's Manual page 182

180 Driving and parking
Vehicles traveling in front, or oncoming vehi‐
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cles, can create waves which may exceed the
maximum permissible height of the water
The braking effect of the brakes is reduced after
fording. Brake carefully while paying attention to
the traffic conditions until braking power has
been fully restored.
ECO start/stop function
Operation of the ECO start/stop function
Mercedes-AMG vehicles: observe the notes in
the Supplement. Otherwise, you may fail to rec‐
ognize dangers.
Vehicles without a 48 V on-board electrical
system (EQ Boost technology)
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.
If you switch on the HOLD function in transmis‐
sion position h or i, the engine will automati‐
cally stop in the following situations:
You stop behind a vehicle that is pulling
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away.
You stop at a stop sign when there is no vehi‐
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cle in front of you.
You turn the steering wheel hard at a low
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speed.
% In transmission position k, the engine is
not switched off automatically even when
the HOLD function is switched on.
The engine is restarted automatically if:
You release the brake pedal in transmission
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position h when the HOLD function is not
active.
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.
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, e.g. 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.
The Vehicle Ready to Drive Switch the Ignition
Off Before Exiting display message also appears
in the multifunction display. If you do not switch
off the ignition, the ignition is automatically
switched off after three minutes.