311 Operation
Tires and wheels
Reactivating Advanced TPMS*
The TPMS must be reactivated when you
have adjusted the tire inflation pressure to
a new level (e.g. because of different load
or driving conditions). The TPMS is then
recalibrated to the current tire inflation
pressures.
Using the tire placard on the driver’s
door B-pillar or, if available, the supple-
mental tire pressure information on the inside of the fuel filler flap, make sure
the tire inflation pressure of all four
tires is correct.
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display menu ap-
pears in the multifunction display
(page 147).
Press thej or kbutton repeat-
edly until you see the current inflation
pressures for each tire appear in the
multifunction display or the following
message appears in the multifunction
display:Tire pressure is
only displayed
after driving for
a few minutes
Press the reset button (
page 27).
The following message will appear in
the multifunction display:
Restart tire
pressure monitor?
i
Operating radio transmission equipment
(e.g. wireless headsets, two-way radios) in or
near the vehicle could cause the TPMS to mal-
function.Warning!
G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.
i
Reactivate the TPMS after adjusting the tire
inflation pressure to the inflation pressure rec-
ommended for the vehicle operating condition.
Tire pressure should only be adjusted on cold
tires. Observe the recommended tire inflation
pressure on the placard on the driver’s door
B-pillar (
page 296). Some vehicles may have
supplemental tire pressure information for driv-
ing at high speeds (
page 302) or for vehicle
loads less than the maximum loaded vehicle con-
dition. If such information is provided, it can be
found on the inside of the fuel filler flap.
323 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
Certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the Certification label
located on the driver’s door B-pillar.
368 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Tire pressure
displayed only
after driving a
few minutes
Vehicles with Advanced TPMS*:
The tire inflation pressure is being
checked.
Drive the vehicle for a few minutes.
Tire pres. monitor
currently unavailable
The TPMS or Advanced TPMS* is un-
able to monitor the tire pressure due
to
a nearby radio interference
source
excessive wheel sensor temper-
atures
As soon as the causes for the malfunction are
no longer present, the Advanced TPMS* auto-
matically becomes active again after a few
minutes driving.
Tire pres. monitor
inoperative
The TPMS or Advanced TPMS* is
malfunctioning.
Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.
379 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Please don't
forget your key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine turned off and no
SmartKey in the starter switch.
This message is only a reminder.
Take the SmartKey or SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
Change
key batteries
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Replace the batteries (
page 402).
Key
not recognized
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because
the SmartKey with KEYLESS-GO* is
not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle as soon as it is safe
to do so.
Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not recognized
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey
in the vehicle.
Operate the vehicle with the
SmartKey in the starter switch if nec-
essary.
380 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Change
key batteries
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Replace the batteries (
page 402).
Key
not detected
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because
the SmartKey with KEYLESS-GO* is
not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle as soon as it is safe to
do so.
Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not detected
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey in
the vehicle.
Operate the vehicle with the SmartKey
in the starter switch if necessary.
.
Active headlamps
inoperative
The active Bi-Xenon* headlamp system is
malfunctioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
Active headlamps
The active Bi-Xenon* headlamps are mal-
functioning.
Contact an authorized Mercedes-Benz
Center as soon as possible.
457 Index
A
ABS 91
Indicator lamp 342
Messages in display 358, 372
Accelerator position, automatic
transmission 175
Accessory weight 323
Accident 58
Active Bi-Xenon headlamps see Head-
lamps
Active head restraints 83
resetting 401
Adaptive Damping System 231
Adjusting 41
ADS 231
Air bags 66
Children 67
Front, Driver 69
Front, Passenger 69
Knee bag 70
Safety guidelines 68
Side impact 70
Window curtain 70Air conditioning refrigerant 451
Air conditioning system see Climate con-
trol system 203
Air conditioning, Cooling 194, 203
Air distribution 197
Air pressure 323
Air pressure see Tire inflation pressure
Air pump, electric 417
Air recirculation mode 200
Air vents 191
Air volume 198
Airmatic DC (Dual Control) 231
Message in display 389, 390
Suspension tuning 231
Vehicle level control 231
Alarm
Audible alarm and flashing exterior
lamps (Panic alarm) 90
Canceling 100
Visual 99
Alarm system see Anti-theft systems
Alignment bolt (vehicle tool kit) 393, 415AMG menu 147
Lap analysis 150
Overall analysis 150
RACETIMER 148
Vehicle supply voltage 148
Anticorrosion/antifreeze 455
Antilock Brake System see ABS
Anti-theft systems 99
Anti-theft alarm system 99
Immobilizer 99
Aquaplaning see Hydroplaning
Ashtrays 249
Aspect ratio 323
AUDIO menu 150
Audio search function 165
Audio system
CD mode 151
Selecting radio station 151
Selecting satellite radio station* 151
Auto-dimming, Rear view mirrors 185
Automatic central locking, Control
system 165
470 IndexPliers, universal (vehicle tool kit) 393
Poly-V-belt drive
Layout 436
Positions (Memory function) see Seats
Power assistance 272
Power outlet 251
Power seat see Seats 43
Power tilt/sliding sunroof 212
Opening/closing 212
Opening/closing in an
emergency 400
Stopping 214
Synchronizing 214
Power washer 333
Power windows 207
Cleaning 337
Operating 207
Rear door window, blocking
operation 89
Side windows 207
Synchronizing 209Practical hints 342
PRE-SAFE
®
Messages in display 358
Problems
While driving 58
With vehicle 17
Product information 9
Production options weight 324
Program mode see Automatic transmis-
sion, Automatic shift program
Program mode selector switch
Automatic shift program 177
PSI 324
Push-start see Tow-start
R
RACETIMER 148
Radio
Selecting stations 151
Selecting stations (satellite*) 151
Radio transmitters 280
Range (distance to empty) 168Reading lamp
Front 135
Rear 136
Rear door ashtray see Ashtrays 250
Rear door window
Blocking operation 89
Rear fog lamp see Fog lamps
Rear lamp 406
Rear lamps see Tail lamps
Rear seat head restraints see Head re-
straints
Rear storage compartment in the rear cen-
ter console 245
Rear view mirrors see Mirrors
Rear window defroster 189
Rear window sunshade* 188
Recommended tire inflation
pressure 324
Recovery services, Stolen vehicle (Tele
Aid) 263
Refrigerant, Air conditioning 451
471 Index
Refueling 283
Regular checks 285
Reminder, seat belts see Seat belts, Tell-
tale
Remote control see Key, SmartKey
Remote door unlock (Tele Aid) 262
Replacing bulbs
Additional turn signals 407
Brake lamps 407
Front lamps 407
Headlamps 405
High beam headlamps 408
High mounted brake lamp 407
License plate lamps 409
Low beam headlamps 408
Parking lamps 409
Side marker lamps 407
Tail lamps 409
Turn signal lamps 408
Reporting safety defects 18
Research octane number see RON
Reserve fuel
Message in display 378Reset button in the instrument
cluster 138, 155
Reset tool (Active head restraints) 401
Restraint system see Children in the vehi-
cle
Retaining hooks 243
Reverse gear position, Automatic
transmission 171, 173
Rims 324, 438
Roadside assistance 12
Button 260
RON 284
Roof rack* 239
Rotating tires 326
Rubber parts, cleaning 338
Run Flat Indicator* 304
S
Safety
Driving safety systems 91
Occupant 64
Reporting defects 18
Safety belts see Seat beltsSatellite radio* 151
Seat belt force limiter 81
Seat belts 78
Children in the vehicle 84
Cleaning 339
Fastening 48
Height adjustment 50
Proper use of 50, 79
Safety guidelines 68
Telltale 27, 348, 349
Warning lamp 348, 349
Seating capacity 297
Seats 41, 120
Adjusting 41
Easy entry/exit feature* 45
Heater* 123
Memory function 125
Multicontour seat* 122
Ventilation* 124
Securing cargo
Cargo tie-down rings 243
Selecting display 158