57
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
If the braking comfort is noticeably impaired, it is
recommended having the brake system checked by
experts at an authorized Porsche dealer.
Brake system function
Porsche sports cars are equipped with a power
assisted hydraulic dual circuit brake system with disk
brakes at the front and rear.
Both circuits function independently. One brake
circuit 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
operate. 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.
Responding to warning symbols
The functionality of the brake system warning light
can be checked by switching the ignition to the “On”
position (position
1
) and verifying that the warning
light illuminates.
The warning light in the instrument panel lights up.
A message will be displayed on the multifunction
display of the instrument panel if the brake fluid level
is too low, or (if the brake pedal travel has increased)
one of the two brake circuits has failed.
A greater braking pressure will be required, stopping
distances will be longer and the braking behavior will
change, particularly in curves.
Brake components
Brake pedal and brake booster
e
To relieve the brake system on steep slopes,
remember to shift to a lower gear in good time
(engine braking effect).
If the engine braking effect on slopes is not suffi-
cient, use the footbrake at intervals. Continuous
braking can cause the brakes to overheat,
impairing their effectiveness.
Brake warning light USA
Brake warning light Canada
WARNING
Blocked Pedals
Unsuitable or improperly secured floor mats can
restrict pedal travel or interfere with pedal operation.
The accelerator can be inadvertently actuated or the
brake pedal blocked. This can result in an unexpected
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.
WARNING
Absence of Brake Power
Assistance
The brake booster is only operative when the engine
is running. Consequently, much greater force needs
to be applied to the pedal during braking when the
engine is switched off or in the event of a faulty brake
booster.
e
Vehicles with defective brakes must not be
towed.
f
Please see chapter „Towing and Tow-Starting“
on page 227.
WARNING
Water Film on the Brake
Disk
In heavy rain, while driving through water or after
leaving a car wash, the braking action may be delayed
and increased pressure may be required.
e
Allow a greater braking distance from the vehicle
in front and "brake" the brakes dry at intervals.
Always ensure that this does not affect the traffic
behind.
WARNING
Reduced Braking Action
Following a long drive over salted or gritted roads, a
coating may form on the brake disks and pads that
significantly reduces friction and therefore the effec-
tiveness of the brakes.
The brake disks will inevitably begin to corrode if the
vehicle is parked for an extended period, resulting in
a tendency for the brakes to "judder".
e
To prevent corrosion on the brake disks, the
brakes should be "braked dry" before parking the
vehicle (this does not apply to vehicles with
Porsche Ceramic Composite Brakes).
e
If braking comfort is noticeably impaired, we
recommend having the brake system checked by
experts at an authorized Porsche dealer.
Visit an authorized Porsche dealer, as they have
trained technicians and the necessary parts and
tools.
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