Porsche Panamera 2018, Руководство пользователя

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B Brraakkeess
70
Responding to warning symbols
If the electric parking brake cannot be fully applied
when the vehicle is stationary, the light indicator on
switch
and the brake warning light (USA:
/ Canada: ) flash.
>
Please see chapter "Warning and Information
Messages" on page 256.
Footbrake
WARNING
Obstructed pedals
Unsuitable or incorrectly secured floor mats and
other objects can restrict the movement of the
pedals or interfere with operation of the pedals.
e
Ensure the floor mats or other objects do not
interfere with the movement of the pedals.
WARNING
No brake force boosting
The brake booster is only operative when the en-
gine 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.
>
Please see chapter "Towing" on page 234.
WARNING
Water film on brake disk
In heavy rain, while driving through water or after
leaving a car wash, the braking action may be de-
layed and increased pressure may be required.
e
Allow a greater braking distance from the ve-
hicle in front and "brake" the brakes dry at in-
tervals. 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
effectiveness of the brakes.
The brake disks will inevitably begin to corrode if
your vehicle is parked for an extended period, re-
sulting in a tendency for the brakes to "judder".
e
To prevent corrosion of the brake disks, “brake
them dry” before parking the vehicle (not on
vehicles with Porsche Ceramic Composite
Brake).
e
If braking comfort is noticeably impaired, it is
recommend that you have the brake system
checked by experts.
Visit an authorized Porsche dealer. Porsche
recommends an authorized Porsche dealer, as
they have trained technicians and the neces-
sary parts and tools.
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
sufficient, use the footbrake at intervals. Con-
tinuous braking can cause the brakes to over-
heat, impairing their effectiveness.
For Information on brake fluid and checking the
brake fluid level:
>
Please see chapter "Brake Fluid" on page 68.
Brake system function
Porsche 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 fails, 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 in the instrument pan-
el 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.
For information on warning lights and light
indicators:
>
Please see chapter "Instrument cluster " on
page 125.
>
Please see chapter "Warning and Information
Messages" on page 256.
Brake pads and brake disks
The wear on the brake pads and brake disks
largely depends on the driving style and the condi-
tions 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.