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Driving and Driving Safety
Brake system warning light
You can check the functionality of the brake
system warning light 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 multi-purpose
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.
With correctly adjusted brakes and a correctly
working brake system, the pedal travel to the
point of brake application should be 1-3/16 in. to
1-9/16 in. (30 to 40 mm). Whenever the brake
pedal travel exceeds this value, have the brake
system checked.
Brake pedal
Unsuitable or incorrectly fixed floor mats or
objects can reduce the travel of the brake pedal or
prevent you applying the brake pedal.
f
Always check the movement of the brake pedal
before driving and make sure that it is not
obstructed by a floor mat or any other object.
f
Secure the floor mat to prevent it from sliding
into positions that could interfere with the safe
operation of your vehicle.
Your authorized Porsche dealer will be glad to
offer you floor mats of the correct size
including a securing possibility.
Information
In case one of the two brake circuits fails,
increased pedal travel is required to bring your
vehicle to a full stop.
f
Before descending a steep grade, reduce
speed and shift the transmission into a lower
gear to control speed.
f
Do not “ride the brakes” by resting your foot on
the pedal when not intending to apply brake
pressure.
f
Do not hold the pedal down too long or too
often. This could cause the brakes to overheat
and lose braking power.
Brake booster
The brake booster assists braking only when
the engine is running.
When the car is moving while the engine is not
running, or if the brake booster is defective, more
pressure on the brake pedal is required to bring
the car to a stop.
Moisture, road salt or grit on brakes affects
braking.
Brakes will dry after a few cautious brake
applications.
Driving through water may reduce the traction.
Moisture on brakes from road water, car wash, or
a coating of road salt or grit may affect braking
efficiency.
f
Cautiously apply brakes to test and dry the
brakes after exposure to road water, etc.
The brake booster is ready for operation only
while the engine is running.
If the engine is switched off or there is a defect in
the brake booster, much greater force has to be
applied to the pedal when braking.
f
Vehicles with defective brakes must not
be towed and must be transported on a flat
bed.
For information on towing:
f
Please see the chapter “TOWING” on
page 302.
Brake warning light USA
Brake warning light Canada
Obstruction of Brake
Pedal
Riding the Brakes
WARNING
h
WARNING
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Wet Brakes
Loss of Braking Power
WARNING
h
WARNING
h