Key Positions; Start/Stop Button - Mercedes-Benz S-Class Operator's Manual

G WARNING
Unsuitable footwear can hinder correct usage
of the pedals, e.g.:
shoes with thick soles
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shoes with high heels
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slippers
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There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
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WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
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WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
overheat and cause a fire
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lose its hold function.
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There is a risk of fire and an accident. Release
the parking brake fully before driving off.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
! AMG vehicles: at low engine oil
temperatures below 68 ‡ (+20 †), the
maximum engine speed is restricted in
order to protect the engine. To protect the
engine and maintain smooth engine
operation, avoid driving at full throttle when
the engine is cold.

Key positions

SmartKey
To remove the SmartKey
g
Power supply for some consumers, such
1
as the windshield wipers
Ignition (power supply for all consumers)
2
and drive position
To start the engine
3
The SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.

Start/Stop button

General notes
All vehicles are equipped with a removable
Start/Stop button.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid
SmartKey is in the vehicle. This occurs, for
example, when starting the engine.
To start the vehicle without actively using the
SmartKey:
the Start/Stop button must be inserted in
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the ignition lock.
the SmartKey must be in the vehicle.
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the vehicle must not be locked with the
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SmartKey or KEYLESS-GO (
Driving
171
page 85).
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