90 Safety and SecurityDriving safety systemsThe electro-hydraulic brake system switch-
es off automatically
approximately 2 minutes after you
turned the SmartKey in the starter
switch to position0 or removed the
SmartKey
approximately 2 minutes after you
pressed the KEYLESS-GO* start/stop
button to turn off the engine or power
supply and opened the driver’s door
(with driver’s door open, the starter
switch is set to position 0, same as
SmartKey removed from starter
switch)
approximately 20 seconds after you
locked the vehicle from outside Note on driving with the
electro-hydraulic brake system
Following extended periods of only mi-
nor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This im-
proves the grip of the brake pads.
After driving on wet or snow-covered
roads, you should apply your brakes
firmly before parking your vehicle. This
produces heat which serves to dry the
brake disks and help prevent corro-
sion.
On long and steep grades, shift to a
lower gear (gear range1, 2, or 3) to
prevent the brakes from overheating
and to reduce brake wear.
After hard braking, it is advisable to
drive on for some time so that the air
stream will cool down the brakes fast-
er.
Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be in-
stalled on your vehicle. Brake pads not
approved by Mercedes-Benz may im-
pair the safety of your vehicle.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.
258 OperationDriving instructionsPower assistance
Brakes
Warning!
G
The brake system requires electrical energy
for operation.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 334) and
warning messages (
page 345) in the in-
strument cluster come on while driving. To
brake, the driver must then apply signifi-
cantly greater brake pedal pressure and de-
press the pedal much further to obtain the
expected braking effect. If necessary, apply
full pressure to the brake pedal. Brakes are
only applied to the front wheels. Stopping
distance is increased! If there is a malfunc-
tion in the electro-hydraulic brake system,
we recommend that the vehicle be trans-
ported with all wheels off the ground using
flatbed or appropriate wheel lift/dolly equip-
ment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.
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.
259 Operation
Driving instructions
To 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.
Refer to the description of the Brake Assist
System (BAS) (
page 84).If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, there is a malfunction in the
electro-hydraulic brake system
(
page 88) or the brake fluid level in the
reservoir 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.
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 rec-
ommended by Mercedes-Benz.
After hard braking, it is advisable to drive
on for some time, rather than to park im-
mediately, so the air stream will cool down
the brakes faster.
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
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.
Be certain to read and observe the warning
notices on brake pad replacement
(page 89).!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.
260 OperationDriving instructionsHigh-performance brake system
(SL 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.
Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine smoothly. Do not
place full load on the engine until the oper-
ating temperature has been reached.
When starting off on a slippery surface, do
not allow a drive wheel to spin for an ex-
tended period with the ESP
® switched off.
Doing so may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
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.
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.
329 Operation
Vehicle care
Light alloy wheels
If possible, clean wheels once a week.
Use Mercedes-Benz approved Wheel
Care, a soft bristle brush and a strong
spray of water for cleaning the light al-
loy wheels.Instrument cluster and cup holders
Use a gentle dishwashing detergent or
mild detergent for delicate fabrics as a
washing solution.
Wipe with a cloth moistened in a luke-
warm solution.
Hard plastic trim items
Use Mercedes-Benz approved Interior
Care, a soft, lint-free cloth and apply
with light pressure.
!Only use acid-free cleaning materials.
Acid may cause corrosion or damage
the clear coat.
!The vehicle should not be parked for an
extended period of time immediately
after it has been cleaned, especially not
after the wheel rims have been cleaned
with wheel rim cleaner. Wheel rim
cleaners can lead to increased corro-
sion of the brake disks and brake pads.
Therefore, the vehicle’s brake system
should always be warmed-up before it
is parked after cleaning.
When applying Mercedes-Benz ap-
proved Tire Care and Mercedes-Benz
approved Wheel Care products, take
care not to spray them on the brake
disks.
!To prevent scratches, do not use scour-
ing agents.!To prevent scratches, do not use scour-
ing agents.
360 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
#
Visit
workshop!
There is a malfunction in the elec-
tronic system.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Convenience functions
Temporarily
Unavailable
The consumer battery has insuffi-
cient voltage and can no longer sup-
ply the convenience functions such
as seat ventilation*.
The electrical consumers will come back online
as soon as on-board voltage is sufficient.
2
Brake
wear
Visit
workshop
The brake pads have reached their
wear limit.
Have the brake pads replaced as soon as pos-
sible.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
Booklet.
462 IndexAutomatic transmission 162
Accelerator position 166
Comfort program mode 168
Emergency operation (Limp Home
Mode) 176
Gear ranges 167
Gear selector lever 30, 162
Gear selector lever position 162, 164
Gear shifting malfunctions 176
Kickdown 166
Manual shifting 169
One-touch gearshifting 169
Program mode selector switch 30,
168
Starting the engine 49
Transmission fluid level 277
Automatic Transmission Fluid see ATF
B
BabySmart
TM airbag deactivation
system 78, 453
BabySmartTM compatible child seats 453Backrest
Lumbar support 116
Multicontour seat* 116
Power seat 41
Shoulder region support 116
Backup lamp
Messages in the multifunction
display 377
Replacing bulb 392, 396
Bar 310
BAS 84, 453
Batteries, SmartKey
Checking battery condition 99
Replacing 389
Batteries, SmartKey with KEYLESS-GO*
Checking battery condition 106
Replacing 390
Batteries, Vehicle 279
Charging 417
Consumer battery 279, 384, 413
Jump starting 419
Messages in the multifunction
display 359
Starter battery 279, 413
Bead 310
Bi-Xenon headlamps* 392, 453Block heater (Canada only) 316
Brake Assist System see BAS
Brake lamps 392
High mounted 392
Messages in the multifunction
display 374, 375
Brake pads
Messages in the multifunction
display 360
Brake system
Messages in the multifunction
display 364
Brakes 258
BAS 84
Brake fluid 271, 445, 447
Electro-hydraulic brake system 88
High-performance brake system (SL 65
AMG only) 260
Warning lamp 334
Break-in period 256
Bulbs
Messages in the multifunction
display 374
Replacing 391
470 IndexMassage function 117
Maximum cooling MAXCOOL 186
Maximum inflation pressure 311
Maximum load rating 311, 456
Maximum loaded vehicle weight 311,
456
Maximum tire inflation pressure 456
Memory function 456
Menus 137
AUDIO 141
Distronic* 143
NAV 143
Standard display 140
TEL* 159
Trip computer 157
Vehicle status message memory 144
Menus see Control system menus
Microphone
Hands-free microphone 31
Miles/kilometers in speedometer 149
Minimum distance (Parktronic*) 225
Mirrors 44, 177
Adjusting interior rear view mirror 44
Exterior rear view mirrors 44
Misfiring 56
MOE tires see MOExtended system*MOExtended system* 411
MOExtended tires 440
MON 270, 456
Mph or km/h in speedometer 149
Multifunction display 135, 456
Displaying gear range 167
Left display field 25
Right display field 27
Selecting language 150
Standard display 135
Multifunction display messages
ABC 347
ABS 349
Battery 359, 360
Brake pads 360
Brake system 364
CHECK ENGINE 365
Coolant 366
Coolant level 365, 368
Display malfunction 368
Doors 369
Easy-entry/exit feature 369
Electro-hydraulic brake system 361,
362
Hood 372
Luggage cover 382Retractable hardtop 371
Roll bar 379
Seat belts 379
SmartKey 372
SmartKey with KEYLESS-GO* 373
Tele Aid 379
Telephone* 379
Tires 380
Trunk 382
Washer fluid 382
Multifunction steering wheel 28, 136,
456
Buttons 136
N
Navigation system
Operating 143
Night security illumination 154
Normal occupant weight 311, 456
O
Occupant distribution 311
Octane number 458
Odometer, main 25
Oil
Adding 276
Consumption 274