Mercedes-Benz CLA 2020 Operator's Manual page 137

Do not use loose floor mats and do not
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place floor mats on top of one another.
& WARNING Risk of accident due to
unsuitable footwear
Operation of the pedals may be restricted
due to unsuitable footwear such as:
Shoes with platform soles
R
Shoes with high heels
R
Slippers
R
When driving always wear suitable
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shoes in order to be able to operate the
pedals safely.
& WARNING Risk of accident when switch‐
ing off the ignition when driving
If you switch off the ignition while driving,
safety functions are restricted or no longer
available. This may affect the power steering
system and the brake force boosting, for
example.
You will then need to use considerably more
force to steer and brake.
Do not switch off the ignition while driv‐
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ing.
& DANGER Risk of death caused by
exhaust gases
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases is hazardous to health
and leads to poisoning.
Never leave the engine or, if present,
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the auxiliary heating running in an
enclosed space without sufficient venti‐
lation.
& WARNING Risk of skidding and of an
accident due to shifting down on slippery
road surfaces
If you shift down on slippery road surfaces to
increase the engine braking effect, the drive
wheels may lose traction.
Driving and parking 135
Do not shift down on slippery road sur‐
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faces to increase the engine braking
effect.
& DANGER Risk of fatal injury due to poi‐
sonous exhaust gases
If the tailpipe is blocked or sufficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter the vehi‐
cle. This is the case when the vehicle
becomes stuck in snow, for example.
Keep the tailpipe and the area around
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the vehicle free from snow when the
engine or the stationary heater are run‐
ning.
Open a window on the side of the vehi‐
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cle facing away from the wind to ensure
an adequate supply of fresh air.