Mercedes-Benz 2009 C 230, Operator'S Manual

Page: 290 / 404

Driving instructions
288
that safe braking is substantially impaired.
This could result in an accident.
! Vehicles with 4MATIC:
Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system or the transfer case which is not
covered by the Mercedes-Benz Limited
Warranty.
! Vehicles with 4MATIC:
Because the ESP
®
operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position
0 or
1 or KEYLESS-GO start/stop button in
position 0 or 1) when the parking brake is
being tested on a brake test dynamometer.
Active braking action through the ESP
®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
! Vehicles without 4MATIC:
Because the ESP
®
operates automatically,
the engine and ignition must be shut off
(SmartKey in starter switch position
0 or
1 or KEYLESS-GO start/stop button in
position
0 or 1) when the parking brake is
being tested on a brake test dynamometer
or the vehicle is being towed with the front
axle raised.
Active braking action through the ESP
®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
If your brake system is normally only
subjected to moderate loads, you should
occasionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.
G
Warning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Refer to the description of the Brake Assist
System (BAS) (
Y
page 67).
High-performance brake system
The high-performance brake system is only
available on C 63 AMG.
G
Warning!
New vehicle brake pads and discs, and
replacement brake pads and discs may
take several hundred miles of driving until
they provide optimum braking efficiency.
Until that time, you may need to use
increased brake pedal pressure while
braking. Please be aware of this and adjust
your driving and braking accordingly during
this break-in period.
Excessive high-demand braking will cause
correspondingly high brake wear. Please be
attentive to the brake warning lamp in the
instrument cluster and brake condition
messages in the multifunction display.
Especially for high performance driving, it
is important to maintain and have the brake
system checked regularly.
The high-performance brake system is
designed to operate under the extremely high
operating demands required to
accommodate the performance capabilities
of the vehicle.
Operation