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260 OperationDriving instructionsBrakesTo help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally 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.If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, the brake fluid level in the res-
ervoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected immedi-
ately. Contact an authorized
Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other
road users when you apply the brakes.
Refer to the description of the Brake
Assist System (BAS) (
page 81).
Page 263 of 458

261 Operation
Driving instructions
After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so that the air stream can cool
down the brakes faster.High-performance brake system
(CL 65 AMG only)
The high-performance brake system is de-
signed to operate under the extremely high
operating demands required to accommo-
date the performance capabilities of the
vehicle. The brakes may produce a squeak-
ing-type noise depending on the
vehicle speed
brake force applied
ambient conditions, e.g. temperature
and humidity
As with any brake system, the wear of indi-
vidual brake system components such as
brake pads or disks strongly depends on
your driving style and the conditions under
which you operate the vehicle. Thus, a driv-
ing style calling for high demand braking
will cause your vehicle’s brakes to wear
more quickly.
Warning!
G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and re-
duces brake pad wear.
Warning!
G
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 mes-
sages in the multifunction display. Especial-
ly for high performance driving, it is
important to maintain and have the brake
system checked regularly.
Page 447 of 458

445 Index
Reset button in the instrument
cluster 153
Resetting
All functions (control system) 153
All functions of a submenu 154
Fuel consumption 151
Maintenance service indicator 316
Stored speed in Distronic* 214
Trip odometer 134
Residual heat utilization 194, 423
Residual ventilation 194
REST (Residual engine heat
utilization) 423
Restraint system see Infant and child re-
straint systems 72, 76
Rim 310
Rims and Tires 404
Roadside Assistance
Tele Aid 245
Roadside assistance 12
Tele Aid* 245
Rolling code programming 253
RON (Research Octane Number) 271,
423Roof rack 229
Rubber parts
Cleaning 323
S
Safety
Occupant 62
Safety belts see Seat belts 45
Safety defects
Reporting 18
Safety systems
Driving 80
Screwdriver (vehicle tool kit) 365
Seat
Heating 119
Seat belt force limiter 71
Seat belts 68
Cleaning 322
Fastening 45
Proper use of 47, 70
Safety guidelines 66
Telltale 331Seat cushion depth
Adjusting 117
Seat heater
Switching off 119
Switching on 119
Seat ventilation*
Switching off 121
Switching on 121
Seating capacity 288
Seats 112
Adjusting 37
Adjusting lumbar support 118
Adjusting shoulder support 117
Easy entry/exit feature 112
Massage function 118
Multicontour backrest* 117
Securing cargo
Cargo tie-down hooks 230
Selector lever
Message in display 341