functional noises have no effect on the efficiency
and operational safety of the brakes.
Objects in the range of movement of
the pedals
WARNING
Objects in the driver's footwell can restrict the
pedal travel or block a pedal that has been
pressed. There is a risk of accident. Ensure that
items in the vehicle are stowed securely and
cannot get into the driver's footwell. Only use
floor mats that are suitable for the vehicle and
can be securely fastened to the floor. Do not
use loose floor mats, and do not place several
floor mats on top of one another. Make sure
that there is sufficient space for the pedals. En‐
sure that floor mats are securely reattached af‐
ter removal, for example for cleaning.
Wet roads
In wet weather, on gritted roads and in heavy
rain, apply the brakes lightly every few kilome‐
tres/miles.
Ensure that you do not obstruct other road users
when doing so.
The heat generated by braking dries the brake
discs and brake pads and protects them against
corrosion.
This helps to maintain the brake power so that it
is available immediately when needed.
Downhill gradients
General
When driving on long or steep downhill
stretches, use the gear in which the least braking
is required. Otherwise the brake system can
overheat and the braking effect is reduced.
Engine braking effect can be additionally in‐
creased by manually shifting down, even into first
gear, if applicable.
Safety notes
WARNING
Even slight but continuous pressure on the
brake pedal can cause overheating, brake pad
wear or even brake system failure. There is a
risk of accident. Avoid excessive loads on the
brake.
WARNING
When idling, in the ECO PRO drive mode or
with the drive-ready state switched off, safety-
relevant functions are restricted or no longer
available, for example the braking effect of the
engine or power assistance for the braking
force and steering. There is a risk of accident.
Do not drive at idle speed, in the ECO PRO
drive mode or with the drive-ready state
switched off.
Corrosion of the brake discs
Corrosion of the brake discs and contamination
of the brake pads increase in the following cir‐
cumstances:
▷ Low mileage.
▷ Extended periods when the vehicle is not
used.
▷ Infrequent use of the brakes.
▷ Aggressive, acidic or alkaline cleaning agents.
During braking, corroded brake discs may cause
brake judder which usually cannot be eliminated.
Condensation when vehicle is
parked
When the automatic air conditioning is in opera‐
tion, condensation develops and exits under‐
neath the vehicle.
Seite 339
Driving precautions
DRIVING HINTS
339
Online Edition for Part no. 01405A1EA53 - X/20
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