Pulsation of the brake pedal and sounds from the
hydraulic circuits indicate that the Antilock Brake
System ABS is in its active mode.
In certain braking situations, the perforated brake
discs can emit functional noises. However, func‐
tional noises have no effect on the performance
and operational reliability of the brake.
Objects in the area around the
Objects in the driver's floor area can limit the
pedal distance or block a depressed pedal.
There is a risk of an accident. Stow objects in
the vehicle such that they are secured and can‐
not enter into the driver's floor area. Use floor
mats that are suitable for the vehicle and can
be safely attached to the floor. Do not use
loose floor mats and do not layer several floor
mats. Make sure that there is sufficient clear‐
ance for the pedals. Ensure that the floor mats
are securely fastened again after they were re‐
moved, for instance for cleaning.
Driving in wet conditions
When roads are wet, salted, or in heavy rain, gen‐
tly press the brake pedal every few miles.
Ensure that this action does not endanger other
The heat generated during braking dries brake
discs and brake pads and protects them against
In this way braking efficiency will be available
when you need it.
Drive long or steep downhill gradients in the gear
that requires least braking effort. Otherwise, the
brakes may overheat and reduce brake effi‐
You can increase the engine's braking effect by
shifting down, going all the way to first gear, if
Light but consistent brake pressure can lead to
high temperatures, brakes wearing out and
possibly even brake failure. There is a risk of an
accident. Avoid placing excessive stress on the
In idle state or with the engine switched off,
safety-relevant functions, for instance engine
braking effect, braking force boost and steering
assistance, are restricted or not available at all.
There is a risk of an accident. Do not drive in
idle state or with the engine switched off.
Brake disc corrosion
Corrosion on the brake discs and contamination
on the brake pads are increased by the following
▷ Low mileage.
▷ Extended periods when the vehicle is not
used at all.
▷ Infrequent use of the brakes.
▷ Aggressive, acidic, or alkaline cleaning
Corrosion buildup on the brake discs will cause a
pulsating effect on the brakes in their response -
generally this cannot be corrected.
Condensation water under the
When using the automatic climate control, con‐
densation water develops and collects under‐
neath the vehicle.
Things to remember when driving
Online Edition for Part no. 01402896703 - X/18