280 OperationDriving instructionsRoad salts and chemicals can adversely af-
fect braking efficiency. Increased pedal
force may become necessary to produce
the normal braking effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt impaired braking
efficiency back to normal.
If the vehicle is parked after being driven
on salt-treated roads, the braking efficien-
cy should be tested as soon as possible af-
ter driving is resumed.
For more information on winter driving, see
“Winter driving” (
page 327).
Standing water
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.
Warning!
G
If the vehicle becomes stuck in snow, make
sure that snow is kept clear of the exhaust
pipe and from around the vehicle with the
engine running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the ve-
hicle not facing the wind.Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose. In-
dicated temperatures just above the freez-
ing point do not guarantee that the road
surface is free of ice.
!Do not drive through flooded areas or
water of unknown depth. Before driving
through water, determine its depth.
Never accelerate before driving into
water. The bow wave could force water
into the engine and auxiliary equip-
ment, thus damaging them.
If you must drive through standing wa-
ter, drive slowly to prevent water from
entering the passenger compartment
or the engine compartment. Water in
these areas could cause damage to
electrical components or wiring of the
engine or transmission, or could result
in water being ingested by the engine
through the air intake causing severe
internal engine damage. Any such dam-
age is not covered by the
Mercedes-Benz Limited Warranty.
286 OperationAt the gas stationWindshield washer system and head-
lamp cleaning system*
For more information on refilling the wash-
er reservoir, see “Windshield washer sys-
tem and headlamp cleaning system*”
(page 296).
Coolant
For more information on coolant, see
“Coolant level” (
page 294) and see “Fu-
els, coolants, lubricants, etc.”
(
page 434).Brake fluid
For information on brake fluid, see “Brake
fluid” (
page 437)Engine oil level
For more information on engine oil, see
“Engine oil” (
page 288).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 394).
For more information, see “Switching on
headlamps” (
page 50).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 308).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 341).
369 Practical hints
What to do if …?
Display
Possible cause
Possible solution
F
KEY
NOT RECOGNIZED
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
Operate the vehicle with the SmartKey in
the starter switch if necessary.
KEY
STILL IN VEHICLE
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey with KEYLESS-GO*
out of the vehicle.
KEY
DRIVE TO WORKSHOP
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
.
3RD BRAKE LIGHT
CHECK LIGHT
The high mounted brake lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
STOP LIGHT
VISIT WORKSHOP
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
BRAKE LIGHT LEFT
CHECK LIGHT
SUBSTITUTE LAMP ON
The left brake lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
BRAKE LIGHT RIGHT
CHECK LIGHT
SUBSTITUTE LAMP ON
The right brake lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
DISPLAY DEFECTIVE
VISIT WORKSHOP
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
394 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp ad-
justment.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.
iSubstitute bulbs will be brought into
use when the following lamps malfunc-
tion:
Brake lamps
Rear parking lamps
Rear turn signal lamps
Tail lamps
Observe the messages in the multi-
function display (
page 369).
396 Practical hintsReplacing bulbsNotes on bulb replacement
Only use 12-volt-bulbs of the same
type and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the exte-
rior rear view mirrors
Bi-Xenon lamps*
High mounted brake lamp
Brake lamps
Rear side marker lamps
Rear parking lamps
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
412 Practical hintsJump startingThe battery is located on the right side of
the trunk under the battery cover
(page 408).
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply parking brake.
Shift gear selector lever to positionP.
Open the trunk lid.
Remove battery cover (
page 408).
Remove red cover from positive
terminal 1. 1Positive terminal of discharged battery
2Negative terminal of discharged
battery
3Positive terminal of charged battery
4Negative terminal of charged battery
Connect positive terminals 1 and3
of the batteries with the jumper cable.
Clamp cable to charged battery3
first.
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals2 and4
of the batteries with the jumper cable.
Clamp cable to charged battery4
first.
Start the engine of the disabled vehi-
cle.
Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.
Remove the jumper cables first from
negative terminals2 and4 and then
from positive terminals1 and3.
You can now turn on the lights.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 408).
!Never invert the terminal connections.
444 Technical termsBAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 323)
Bi-xenon headlamps
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-xenon headlamps produce low beam
and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 323)
COMAND
(Cockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system that auto-
matically maintains the vehicle speed
set by the driver.
Curb weight
(
page 323)
453 Index
Automatic headlamp mode 132
Automatic lighting control
Activating 137
Deactivating 137
Automatic locking when driving 112
Automatic shift program
Automatic transmission 179
Automatic transmission 173
Accelerator position 177
Automatic shift program 179
Emergency operation (Limp Home
Mode) 185
Fluid level 293
Gear ranges 178
Gear selector lever position 173, 175
Gear shifting malfunctions 185
Kickdown 177
Kickdown, manual shift program
S 55 AMG and S 65 AMG 185
Manual shift program S 55 AMG and
S 65 AMG 183
Manual shifting 180
One-touch gearshifting 180
Selector lever position 173
Starting the engine 46Steering wheel gearshift control
S 55 AMG and S 65 AMG 181
Transmission fluid 293
Auxiliary fuse box 417
B
BabySmart
TM
Air bag deactivation system 73
Compatible child seats 73, 443
Self-test 73
BabySmart
TM air bag deactivation
system 443
Backrest supports
Lumbar region 123
Shoulder region 123
Backup lamps 395, 400
Bulbs 395
Bar 323
BAS 80, 444
Batteries, SmartKey
Check lamp 95
Checking 95
Replacing 392
Batteries, SmartKey with KEYLESS-GO*
Checking 101
Battery discharged
Jump starting 411Battery, SmartKey with KEYLESS-GO*
Check lamp 101
Replacing 393
Battery, vehicle 295, 408
Charging 409
Disconnecting 409
Reconnecting 410
Reinstalling 409
Removing 409
Bead 323
Bi-Xenon headlamps 444
Block heater (Canada only) 328
Blocking
Rear window operation 77
Brake assist system (BAS) 444
Brake fluid 285, 437
Brake lamp bulbs 395
Brake lamp, high mounted 395
Brake pads
Message in display 361
Brakes 274
High-performance brake system
(S 65 AMG only) 275
Warning lamp 341
Break-in period 272