285 Operation
Tires and wheels
Tread depth
Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths under 1/8in (3 mm).
Tread wear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately
1/16
in (1.6 mm), at which point
the tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
Summer tires
1/8in (3 mm)
Winter tires
1/6in (4 mm)
1TWI (T
read W
ear I
ndicator)
The tread wear indicator appears as a solid
band across the tread.Storing tires
Cleaning tires
Warning!
G
Although the applicable federal motor safety
laws consider a tire to be worn when the
tread wear indicators (TWI) become visible
at approximately
1/16in (1.6 mm), we rec-
ommend that you do not allow your tires
to wear down to that level. As tread depth
approaches
1/8in (3 mm), the adhesion
properties on a wet road are sharply re-
duced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
!Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact
with oil, grease and gasoline.!Never use a round nozzle to power
wash tires. The intense jet of water can
result in damage to the tire.
Always replace a damaged tire.
316 OperationMaintenanceMaintenance service term exceeded
If you have exceeded the suggested main-
tenance service term, you will see the fol-
lowing message in the multifunction
display:'A' SERVICE EXCEEDED
BY XXXX MILES (KM)
'A' SERVICE EXCEEDED BY XXX DAYS
'A' SERVICE EXCEEDED BY X DAYIn addition, a signal sounds when the mes-
sage appears.
Any authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance ser-
vice.
Calling up the maintenance service in-dicator
Switch on ignition (
page 34).
The standard display of the control sys-
tem appears (
page 142).
Press button k or j on the mul-
tifunction steering wheel until the
maintenance service indicator with the
service symbol 9 or ´ and the
service deadline appears in the multi-
function display.
Resetting the maintenance service indi-
cator
In the event that the maintenance service
on your vehicle is not carried out by an au-
thorized Mercedes-Benz Center, you can have the maintenance service indicator re-
set. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the main-
tenance service indicator in the mainte-
nance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz
USA, LLC.
iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the maintenance
service indicator. To arrive at the true
maintenance service deadline, you will
need to subtract these days from the
days shown in the maintenance service
indicator.
Do not confuse the maintenance ser-
vice indicator with the engine oil level
indicator :.
iIf the maintenance service indicator
was inadvertently reset, have an autho-
rized Mercedes-Benz Center correct it.
Only reset if the proper maintenance
service has been performed. Resetting
the system without performing the
proper service as called for by the
maintenance service indicator will re-
sult in engine damage and/or other ve-
hicle damage not covered by the
Mercedes-Benz Limited Warranty.
337 Practical hints
What to do if …?
Text messagesDisplay
Possible cause
Possible solution
ABC
ACTIVE BODY CONTROL
DRIVE CAREFULLY!
The capability of the ABC system is restrict-
ed. This can impair the handling.
Do not exceed a speed of 50 mph (80 km/h).
Visit an authorized Mercedes-Benz center as
soon as possible.
The vehicle is losing oil.
Stop your vehicle as soon as it is safe to do
so.
ACTIVE BODY CONTROL
STOP, CAR TOO LOW
The vehicle is parked on an extremely
uneven surface.
Press the vehicle level control button to se-
lect level 2 (
page 223).
ABC is malfunctioning.
Stop and press the vehicle level control but-
ton to select a higher vehicle level
(page 223).
Do not turn steering wheel too far to avoid
damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph (80 km/h).
Visit an authorized Mercedes-Benz center as
soon as possible.
DISPLAY DEFECTIVE
VISIT WORKSHOP
The display for ABC or the ABC system itself
is malfunctioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
348 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
:
USA only:ADD 1.0 QT. OIL
AT FILLING STATIONCanada only:ADD 1.0 LITER OIL
AT FILLING STATION
The engine oil level is too low.
Add engine oil (
page 278) and check
the engine oil level (page 275).
ENGINE OIL LEVEL
STOP, ENGINE OFF
There is no oil in the engine.
There is a danger of engine damage.
Carefully bring the vehicle to a halt as
soon as possible.
Turn off the engine.
Add engine oil (
page 278) and check
the engine oil level (page 275).
ENGINE OIL LEVEL
REDUCE OIL LEVEL
You have added too much engine oil.
There is a risk of damaging the engine or
the catalytic converter.
Have excess oil siphoned or drained off.
Observe all legal requirements with re-
spect to its disposal.
349 Practical hints
What to do if …?
When the message
ADD 1.0 QT. OIL AT
FILLING STATION (Canada:
1 Liter
) ap-
pears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest ser-
vice station where the engine oil should be
topped to the required level with an ap-
proved oil specified in the Factory Ap-
proved Service Products pamphlet.
Display
Possible cause
Possible solution
:
ENGINE OIL
VISIT WORKSHOP
It may be that there is water in the engine
oil.
Have the engine oil level checked
(page 275).
ENGINE OIL LEVEL
VISIT WORKSHOP
The engine oil has dropped to a critical
level.
Check the engine oil level (
page 275)
and add engine oil as required
(
page 278).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
OIL SENSOR MALFUNCT.
VISIT WORKSHOP
The measuring system is malfunctioning.
Have the measuring system checked by
an authorized Mercedes-Benz Center.
!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
421 Technical terms
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRS
FSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates
engine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs DVD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
KEYLESS-GO*
System for entering and operating the
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
425 Index
A
ABC 220, 419
Messages in display 337
Setting vehicle level 221
ABS 25, 80, 419
Malfunction indicator lamp 326
Messages in display 338
Warning lamp 326
Accelerator position, automatic
transmission 172
Accessory weight 309
Accident
In case of 56
Activating
Air conditioner (cooling) 194
Air recirculation mode 190
Anti-theft alarm system 86
Central locking (control system) 161
Charcoal filter 192
Distance warning function* 217
Distronic* 213Easy-entry/exit feature 163
ESP 84
Exterior lamps 126
Exterior rear view mirror parking
position 179
Front and rear fog lamp 126, 128
Hazard warning flasher 130
Headlamps 52
High beams 129
Ignition 34
Ignition with KEYLESS-GO* start/stop
button 36
Immobilizer 59, 85
Limiting opening height of trunk
lid 162
Manual shift program CL 55 AMG and
CL 65 AMG 175
Rear window defroster 193
Residual heat 194
Seat heater 119, 120
Seat ventilation* 121
Tow-away alarm 87
Windshield wipers 54Adding
Coolant 280
Engine oil 278
Additional turn signals 374
Adjustable air vents, rear passenger
compartment 196
Adjusting 37
Air distribution 188
Air volume 189
Backrest tilt 38
Exterior rear view mirror 43
Folding forward front seat
backrests 40
Head restraint height 39
Head restraint tilt 39
Instrument cluster illumination 133
Interior rear view mirror 43
Lumbar support 117
Mirrors 43
Multicontour backrest* 117
Seat cushion depth 38, 117
Seat cushion tilt 38
Seat fore and aft adjustment 38
429 Index
Central locking
Automatic 110
From inside 111
Switch 111
Switching on/off (control
system) 161
Unlocking from inside 111
Central locking switch 111
Change of address or ownership 12
Changing
Key setting 162
Vehicle level 222
Changing CDs 144
Charcoal filter 192
Activating 192
Deactivating 192
Charging
Vehicle battery 387
CHECK ENGINE malfunction indicator
lamp 328, 329Checking
Coolant level 279
Oil level 272, 274
Oil level via control system 275
Tire inflate pressure 272
Vehicle lighting 272
Checking the batteries
SmartKey 93
Child safety 72
Air bags 64
Infant and child restraint systems 68,
72
LATCH child seat mounts 77
Child safety switch see Blocking of rear
window operation 78
Cigarette lighter 239Cleaning
Cup holder 322
Distronic* system sensor cover 320
Gear selector lever 322
Hard plastic trim items 322
Headlamps 178
Headliner and shelf below rear
window 322
Instrument cluster 322
Leather upholstery 323
Light alloy wheels 322
Nubuck leather upholstery 323
Parktronic* system sensor 320
Plastic and rubber parts 323
Seat belts 322
Steering wheel 322
Upholstery 323
Windows 321
Windshield 55
Wiper blades 320
Wood trims 323
Cleaning tires 285