Brakes - Porsche Taycan Owner's Manual

Brakes

General Safety Instructions
Blocked pedals
WARNING
Unsuitable or improperly secured floor mats can re-
strict pedal travel or interfere with pedal operation.
The accelerator can be inadvertently actuated or the
brake pedal blocked. This can result in an unex-
pected increase in speed or make braking more
difficult.
e Only use floor mats that are suitable for the
vehicle.
e Secure floor mats properly and do not place them
loosely on the floor.
e Do not lay several floor mats on top of each
other.
e Ensure that the floor mats are securely fitted
again after they have been removed, e.g. for
cleaning.
Water film on brake
WARNING
discs
In case of heavy rain, water crossing or after a car
wash, the braking action may be delayed and in-
creased foot pressure may be required.
e Check the brakes after washing the vehicle.
e For this reason, keep further back from the ve-
hicle in front and "dry" the brakes by applying
them at intervals. Make sure that the traffic be-
hind you is not affected.
Reduced braking action
WARNING
After a long drive over salted or gritted roads, a
coating may form on the brake discs and pads that
significantly reduces friction and therefore also
braking effect.
The brake discs will unavoidably start to corrode if
your vehicle is parked for an extended period. The
brakes will tend to "judder" as a result.
e If braking comfort is noticeably impaired, it is
recommend that you have the brake system
checked by experts.
Visit a qualified specialist workshop. Porsche
recommends an authorized Porsche dealer as
they have trained workshop personnel and the
necessary parts and tools.
For information on brake fluid and checking the
brake fluid level:
> Please see chapter "Brake Fluid" on page 66.
With correctly adjusted brakes and a correctly
working brake system, the pedal travel to the point
of brake application (start of brake pressure build-
up) should not be longer than 10 mm.
e Whenever the brake pedal travel exceeds this
value, have the brake system checked. Visit an
authorized Porsche dealer. Porsche recommends
an authorized Porsche dealer, as they have
trained technicians and the necessary parts and
tools.
Operating principle
Brake system function
Porsche sports cars are equipped with a power as-
sisted hydraulic dual circuit brake system with disk
brakes at the front and rear.
Both circuits function independently. One brake cir-
cuit operates the front left and rear right wheel and
the other operates the front right and rear left wheel.
If one brake circuit has failed, the other will still op-
erate. However, you will notice an increased pedal
travel when you apply the brakes. Failure of one
brake circuit will cause the stopping distance to
increase.
Brake pads and brake disks
The wear on the brake pads and brake disks largely
depends on the driving style and the conditions of
use and cannot therefore be expressed in terms of
mileage covered.
The high performance brake system is designed to
ensure the best possible braking effect at all speeds
and temperatures.
Braking noise may occur, depending on the speed,
braking force and ambient conditions (e.g, temper-
ature, humidity).
e Have the brake system inspected at the intervals
recommended in your Maintenance Booklet.
Bedding in and cleaning the brakes
The vehicle has a braking recuperation system that
feeds most of the braking energy back into the high-
voltage battery. In order to bed in the wheel brake,
the recuperation system is deactivated briefly on
new vehicles or after changing the brake pads and
this reduces the range. To assist in cleaning the
brakes, the recuperation system is deactivated for a
short time after standstill times of more than 6
hours. The recuperation system is activated again
automatically afterwards.
Vehicles without Porsche Ceramic Composite
Brake (PCCB)
Even though the brake disks consist of alloyed gray
cast iron, they will unavoidably start to corrode if the
car is parked for an extended period. The brakes will
tend to rub as a result. The nature, extent and ef-
fects of corrosion depend on the amount of time the
vehicle was parked, whether road salt or grit was
Brakes
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
67