428 Maintenance and care
Keeping the air-water duct free
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the SmartKey is at a minimum distance of
10 ft (3 m) away from the vehicle, otherwise
the tailgate could open unintentionally.
in car washes with a conveyor system: neu‐
tral i is engaged.
NOTE Damage due to unsuitable car
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wash
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Keep the area between the hood and the
windshield free of deposits, e.g. ice, snow
and leaves.
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Before driving into a car wash make
sure that the car wash is suitable for
the vehicle dimensions.
% In car washes with a conveyor system: if you
would like to leave the vehicle while it is
being washed, make sure the SmartKey is
located in the vehicle. The park position j
is otherwise automatically engaged.
% If, after the car wash, you remove the wax
from the windshield and wiper rubbers, this
will prevent smearing and reduce wiper
noise.
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Ensure there is sufficient ground clear‐
ance between the underbody and the
guide rails of the car wash.
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is sufficient.
Cleaning and care
Notes on washing the vehicle in a car wash
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WARNING Risk of accident due to
reduced braking effect after washing the
vehicle
The braking effect is reduced after washing
the vehicle.
To avoid damage to your vehicle when using a
car wash, ensure the following beforehand:
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After the vehicle has been washed,
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Active Distance Assist DISTRONIC and the
HOLD function are deactivated.
brake carefully while paying attention to
the traffic conditions until the braking
effect has been fully restored.
Information on using a power washer
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the 360° Camera or the rear view camera is
switched off.
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WARNING Risk of accident when using
high-pressure cleaning equipment with
round-spray nozzles
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the side windows and sliding sunroof are
completely closed.
The water jet from a round-spray nozzle (dirt
grinder) may cause damage to tires and sus‐
pension components that is not visible.
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the blower for the ventilation/heating is
switched off.
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the windshield wiper switch is in position g.