1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 256
12 V socket
see Sockets
115 V socket ...................................... 354
360° camera
Cleaning ........................................ .380
Function/notes .............................2 36
A
ABS (Anti-lock Braking System)
Display message ............................ 291
Function/notes ................................ 68
Important safety notes .................... 68
Warning lamp ................................. 327
Accident
Automatic measures after an acci-
dent ................................................. 60
Activating/deactivating cooling
with air dehumidification ................. 153
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 282
Display message ............................ 314
Function/information .................... 248
Trailer towing ................................. 251
Active Curve System
Display message ............................ 311
Function/notes ............................. 219
Active Driving Assistance package .. 248
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 282
Display message ............................ 314
Function/information .................... 251
Trailer towing ................................. 254
Active Parking Assist
Display message ............................ 315
Exiting a parking space .................. 230
Function/notes ............................. 227
Important safety notes .................. 227
Parking .......................................... 229 Towing a trailer .............................. 231
ADAPTIVE BRAKE ................................. 76
Adaptive Brake Assist
Display message ............................ 298
Function/notes ................................ 72
Adaptive Highbeam Assist
Display message ............................ 306
Function/notes ............................. 134
Switching on/off ........................... 134
Additives (engine oil) ........................ 451
ADS (Adaptive Damping System)
Function/notes ............................. 218
Air bags
Deployment ..................................... 58
Display message ............................ 301
Front air bag (driver, front
passenger) ....................................... 51
Important safety notes .................... 50
Introduction ..................................... 50
Knee bag .......................................... 52
Occupant Classification System
(OCS) ............................................... 53
PASSENGER AIR BAG OFF indica-
torlamp ........................................... 45
Si
de impact air bag .......................... 52
Window curtain air bag .................... 53
Air filter (display message) .............. 309
AIR FLOW ........................................... 155
Air vents
Glove box ....................................... 161
Important safety notes .................. 160
Rear ............................................... 161
Setting ........................................... 160
Setting the center air vents ........... 160
Setting the side air vents ............... 161
Air-conditioning system
see Climate control
AIRMATIC package
ADS (Adaptive Damping System) ... 218
Function/notes ............................. 218
Level control .................................. 219
Alarm
ATA (Anti-Theft Alarm system) ......... 78
Switching off (ATA) .......................... 78
Switching the function on/off
(ATA) ................................................ 78
Alarm system
see ATA (Anti-Theft Alarm system)
4Index
RHighway level is set.
RADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving condi-
tions.
R4ETS and the differential lock are adap-
ted for driving on snow-covered roads.
RThe automatic transmission selects the
automatic drive program for a comforta-ble driving style that provides for opti-
mum fuel consumption.
RThe soft accelerator pedal curve is selec-
ted, e.g. the accelerator pedal must be
pressed significantly further to acceler-
ate.
RThe optimum gear for pulling away is
engaged.
Trailer program
Select the trailer program when towing a
trailer.
XSelector wheel :engaged:briefly press
selector wheel :.
Selector wheel :extends.
XTo select: turn selector wheel :until indi-
cator lamp ;comes on.
Trailer indicator =appears in the multi-
function display.
RHighway level is set.
RADS (Adaptive Damping System) adapts
comfortable damping characteristics to
the current operating and driving condi-
tions.
RThe automatic transmission selects the
automatic drive program for a comforta-
ble driving style that provides for opti-
mum fuel consumption, changing gear at
optimum points.
RWhile pulling away, the differential locks
are engaged.
Off-road driving systems
4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are per-
manently driven. Together with ESP®and
4ETS, it improves the traction of your vehicle
whenever a drive wheel spins due to insuffi-
cient grip.
If you fail to adapt your driving style, 4MATIC can neither reduce the risk of accident nor
override the laws of physics. 4MATIC cannot
take account of road, weather and traffic con-
ditions. 4MATIC is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
!Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remain either on the ground or
be fully raised. Observe the instructions for towing the vehicle with all wheels in full
contact with the ground.
256Driving systems
Driving and parking
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Avoid
abrupt steering maneuvers.
The function of the tire pressure loss warning
system is limited or delayed if:
Rsnow chains are mounted on your vehicle's
tires.
Rroad conditions are wintry.
Ryou are driving on sand or gravel.
Ryou adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration).
Ryou are towing a very heavy or large trailer.
Ryou are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tire pressure loss warn-
ing system
Restart the tire pressure loss warning system
if you have:
Rchanged the tire pressure
Rchanged the wheels or tires
Rmounted new wheels or tires
XBefore restarting, make sure that the tire
pressures are set properly on all four tires
for the respective operating conditions.
The recommended tire pressures can be
found on the Tire and Loading Information
placard on the B-pillar on the driver's side
or the tire pressure table on the fuel filler
flap.
The tire pressure loss warning system can
only give reliable warnings if you have set
the correct tire pressure. If an incorrect tire
pressure is set, these incorrect values will
be monitored.
XAlso observe the notes in the section on tire
pressures (
Ypage 408).
XMake sure that the SmartKey is in position
2in the ignition lock (
Ypage 165).
XPress the =or; button on the steer-
ing wheel to select the Service
menu.
XPress the9or: button to select
Tire Pressure
.
XPress the abutton.
The Run Flat Indicator Active
Press 'OK' to Restartmessage
appears in the multifunction display.
If you wish to confirm the restart:
XPress the abutton.
The Tire Pressure Now OK?
message
appears in the multifunction display.
XPress the 9or: button to select
Yes
.
XPress the abutton.
The Run Flat Indicator Restarted
message appears in the multifunction dis-
play.
After a teach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
XPress the %button.
or
XWhen the Tire Pressure Now OK?mes-
sage appears, press the 9or: but-
ton to select Cancel
.
XPress theabutton.
The tire pressure values stored at the last
restart will continue to be monitored.
Tire pressure monitor
General notes
If a tire pressure monitor is installed, the vehi-
cle's wheels have sensors that monitor the
tire pressures in all four tires. The tire pres-
sure monitor warns you if the pressure drops
in one or more of the tires. The tire pressure
monitor only functions if the corresponding
sensors are installed in all wheels.
Information on tire pressures is displayed in
the multifunction display. After a few minutes
412Tire pressure
Wheels and tires
too low and must be corrected at the next
opportunity.
RIf theCheckTiresmessage appears in the
multifunction display, the tire pressure in
one or more tires has dropped significantly
and the tires must be checked.
RIf the Warning Tire Malfunctionmes-
sage appears in the multifunction display,
the tire pressure in one or more tires has
dropped suddenly and the tires must be
checked.
iIf the wheel positions on the vehicle are
rotated, the tire pressures may be dis-
played for the wrong positions for a short
time. This is rectified after a few minutes of
driving, and the tire pressures are displayed
for the correct positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor, all
existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the refer-
ence values for monitoring. In most cases, the tire pressure monitor will automatically
detect the new reference values after you
have changed the tire pressure. However, you
can also define reference values manually as
described here. The tire pressure monitor
then monitors the new tire pressure values.
XSet the tire pressure to the value recom-
mended for the corresponding driving sit-
uation on the Tire and Loading Information
placard on the driver's side
B-pillar (
Ypage 408).
Additional tire pressure values for different
loads can also be found on the tire pressure table on the inside of the fuel filler flap
(
Ypage 408).
XMake sure that the tire pressure is correct
on all four wheels.
XMake sure that the SmartKey is in position2 in the ignition lock.
XPress the =or; button on the steer-
ing wheel to select the Service
menu.
XPress the9or: button to select
Tire Pressure
.
XPress the abutton.
The multifunction display shows the cur-
rent tire pressure for the individual tires or
the Tire
pressurewillbedisplayed
after driving a few minutesmes-
sage.
XPress the :button.
The Use Current Pressures as New
Reference Valuesmessage appears in
the multifunction display.
If you wish to confirm the restart:
XPress the abutton.
The Tire
PressureMonitorRestarted
message appears in the multifunction dis-
play.
After driving for a few minutes, the system
checks whether the current tire pressures
are within the specified range. The new tire
pressures are then accepted as reference
values and monitored.
If you wish to cancel the restart:
XPress the %button.
The tire pressure values stored at the last
restart will continue to be monitored.
Radio type approval for the tire pres-
sure monitor
CountryRadio type approval number
USAFCC ID: MRXMW2433A
FCC ID: MRXGG4
FCC ID: MRXMC34MA4
CanadaIC: 2546A-MW2433A
IC: 2546A-GG4
IC: 2546A-MC34MA4
Tire pressure415
Wheels and tires
Z
Example:
RTreadwear grade:200
RTraction grade:AA
RTemperature grade: A
All passenger car tires must conform to the
statutory safety requirements in addition to
these grades.
iThe actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would wear one and one-half
times as well on the government course as a
tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits, ser-
vice practices and differences in road char-
acteristics and climate.
Traction
GWARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction char-
acteristics.
!Avoid wheelspin. This can lead to damage
to the drive train.
The traction grades – from highest to lowest –
are AA, A, B and C. Those grades represent
the tire's ability to stop on wet pavement as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance. The safe speed on a wet, snow covered or icy
road is always lower than on dry road surfa-
ces.
You should pay special attention to road con-
ditions when temperatures are around freez-
ing point.
Mercedes-Benz recommends a minimum
tread depth of
ãin (4 mm) on all four winter
tires. Observe the legally required minimum
tire tread depth (
Ypage 405). Winter tires can
reduce the braking distance on snow-covered
surfaces in comparison with summer tires.
The braking distance is still much further than
on surfaces that are not icy or covered with
snow. Take appropri ate ca
re when driving.
Further information on winter tires (M+S
tires) (
Ypage 406).
Temperature
GWARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause excessive heat
build-up and possible tire failure.
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to
the generation of heat and its ability to dissi-
pate heat when tested under controlled con-
ditions on a specified indoor laboratory test
wheel. Sustained high temperature can cause
the material of the tire to degenerate and
reduce tire life, and excessive temperature
can lead to sudden tire failure. The grade C
corresponds to a level of performance which
all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard No.
109. Grades B and A represent higher levels
of performance on the laboratory test wheel
than the minimum required by law.
420All about wheels an d tires
Wheels and tires
ble load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar on
the driver's side (
Ypage 416).
iThe actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
DOT, Tire Identification Number (TIN)
US tire regulations stipulate that every tire
manufacturer or retreader must imprint a TIN
in or on the sidewall of each tire produced.
The TIN is a unique identification number. The
TIN enables the tire manufacturers or retread-
ers to inform purchasers of recalls and other
safety-relevant matters. It makes it possible
for the purchaser to easily identify the affec-
ted tires.
The TIN is made up of manufacturer identifi-
cation code ;, tire size=, tire type code ?
and manufacturing date A.
DOT (Department of Transportation): tire
symbol :marks that the tire complies with
the requirements of the U.S. Department of
Transportation.
Manufacturer identification code: manu-
facturer identification code ;provides
details on the tire manufacturer. New tires
have a code with two symbols. Retreaded
tires have a code with four symbols.
For further information about retreaded tires,
see (
Ypage 432).
Tire size: identifier=describes the tire size. Tire type code:
tire type code?can be used
by the manufacturer as a code to describe
specific characteristics of the tire.
Date of manufacture: date of manufacture
A provides information about the age of a
tire. The first and second positions represent
the week of manufacture, starting with "01"
for the first calendar week. Positions three
and four represent the year of manufacture.
For example, a tire that is marked with
"3208", was manufactured in week 32 in
2008.
iTire data is vehicle-specific and may devi-
ate from the data in the example.
Tire characteristics
This information describes the type of tire
cord and the number of layers in sidewall :
and under tire tread ;.
iTire data is vehicle-specific and may devi-
ate from the data in the example.
Definition of terms for tires and loading
Tire ply composition and material used
Describes the number of plies or the number
of layers of rubber-coated fabric in the tire
tread and sidewall. These are made of steel,
nylon, polyester and other materials.
Bar
Metric unit for tire pressure. 14.5038 pounds
per square inch (psi) and 100 kilopascals
(kPa) are the equivalent of 1 bar.
424All about wheels and tires
Wheels and tires