Mercedes-Benz S-Class 2020 Owner's Manual page 100

Make sure that the key is at a minimum
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distance of 3 m (high-pressure cleaner)
or 6 m (automatic car wash) away from
the vehicle.
When making the kicking movement, make sure
that you are standing firmly on the ground. You
could otherwise lose your balance, e.g. on ice.
Observe the following notes:
The key is behind the vehicle.
R
Stand at least 30 cm away from the vehicle
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while performing the kicking movement.
Do not come into contact with the bumper
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while making the kicking movement.
Do not carry out the kicking movement too
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slowly.
The kicking movement must be towards the
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vehicle and back again.
1 Detection range of the sensors
If several consecutive kicking movements are
not successful, wait ten seconds.
System limits
The system may be impaired or may not function
in the following cases:
The sensors are dirty, e.g. due to road salt or
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snow.
The kicking movement is made using a pros‐
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thetic leg.
Opening and closing
The boot lid could be opened or closed uninten‐
tionally, in the following situations:
A person's arms or legs are moving in the
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sensor detection range, e.g. when polishing
the vehicle or picking up objects.
Objects are moved or placed behind the vehi‐
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cle, e.g. tensioning straps or luggage.
Clamping straps, tarpaulins or other cover‐
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ings are pulled over the bumper.
A protective mat with a length reaching over
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the boot sill down into the detection range of
the sensors is used.
The protective mat is not secured correctly.
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Work is being done on the trailer hitch, trail‐
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ers or rear bicycle racks.
Deactivate the key functions (
/
not carry the key about your person in such sit‐
uations.
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page 84) or do