Page 121 of 435
120 Controls in detailSeats
Switch on ignition.
or
Open the right rear passenger door.
Press button1 to adjust the front
passenger seat.Passenger seat fore and aft adjustment
Press the switch forward or backward
in direction of arrow6.
Passenger seat backrest tilt
Press the switch forward or backward
in direction of arrow5.
Passenger seat height
Press the switch up or down in the
direction of arrow3.
Passenger seat head restraint height
Press the switch up or down in
direction of arrow4.
Press button2 to adjust the rear seat
(
page 119).
iAdjusting the passenger seat position
from the rear is not possible if you de-
activate the operation of the rear door
windows (
page 74).
!Do not move the front passenger seat
completely forward if objects are
stored in the parcel net in the front pas-
senger-side footwell. Items in the net
may be damaged
Page 122 of 435

121 Controls in detail
Memory function
Memory function
You can store up to three different settings
per SmartKey or SmartKey with
KEYLESS-GO*.
The following settings are saved for each
stored position:
Seat and backrest position
Settings for the multicontour seat*
Steering wheel position
Exterior rear view mirror position
Automatic climate control
These key-dependent memory settings
can be deactivated if desired
(
page 160).The memory button and stored position
switch are located on the door.
1 Stored position buttons
2Memory button
Make sure the ignition is switched on
or the relevant door is open and the
SmartKey is inserted in the starter
switch.
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to en-
sure adequate control, reach, and com-
fort. The head restraint should also be
adjusted for proper height. See also the
section on airbags (
page 59) for
proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the inside and
outside rear view mirrors should be ad-
justed for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213
and 210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
Page 311 of 435
310 Practical hintsWhat to do if …?Problem
Possible cause
Suggested solution
1
The red SRS indicator lamp
comes on while driving.
There is a malfunction in the restraint sys-
tems. The airbags or emergency tensioning
devices (ETDs) could deploy unexpectedly
or fail to activate in an accident.
Drive with added caution to the nearest
authorized Mercedes-Benz Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an acci-
dent, which could result in serious or fatal
injury, or it might deploy unexpectedly and
unnecessarily which could result in an acci-
dent and/or injury to you or to others.
Page 312 of 435

311 Practical hints
What to do if …?
Lamp in center consoleProblem
Possible cause
Suggested solution
The PASSENGER AIRBAG OFF indicator
lamp comes on.
A BabySmart
TM child seat is installed on the
front passenger seat. Therefore the passen-
ger front airbag is switched off.
The system is malfunctioning when there is
no BabySmart
TM child seat installed on the
front passenger seat.
Have the system checked as soon as
possible by an authorized
Mercedes-Benz Center.
The PASSENGER AIRBAG OFF indicator
lamp does not come on with a
BabySmart
TM1
child seat properly installed
on the front passenger seat.
1BabySmart
TMis a trademark of Siemens AutomotiveCorp.
The system is malfunctioning.
Make sure that there is nothing between
seat cushion and child seat and check
installation of the child seat.
If the light remains out, have the system
checked as soon as possible by an au-
thorized Mercedes-Benz Center.
Do not use the BabySmart
TM restraint to
transport children on the front passen-
ger seat until the system has been re-
paired.
Page 402 of 435

401 Technical terms
ABC
(A
ctive B
ody C
ontrol)
Active, computer-controlled system
that hydraulically adjusts the suspen-
sion at all four wheels in response to
various driving situations.
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.BabySmart
TM airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such
a seat is properly installed (indicator
lamp PASSENGER AIRBAG OFF in the
center console comes on). See an au-
thorized Mercedes-Benz Center for
availability.
BabySmartTM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.BAS
(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.
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.
Page 406 of 435

405 Technical terms
Remote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to the Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being inadvertently moved out
of positionP without the SmartKey
turned and the brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, Roadside Assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics.”
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Page 408 of 435

407 Index
A
ABC 220, 401
Messages in display 313, 318
Setting vehicle level 219, 221
ABS 77, 401
Malfunction indicator lamp 304
Messages in display 314
Warning lamp 304
Accelerator position, automatic
transmission 170
Accident
In case of 50
Activating
Air conditioner (cooling) 191
Air conditioning 190
Air recirculation mode 187
Anti-theft alarm system 84
Central locking (control system) 159
Charcoal filter 188
Distance warning function* 215
Distronic* 211
Easy-entry/exit feature 160
ESP 81
Exterior lamps 125Exterior rear view mirror parking
position 175
Front and rear fog lamp 126, 127
Hazard warning flasher 129
Headlamps 47
High beams 128
Ignition 31
Ignition with KEYLESS-GO*
start/stop button 33
Immobilizer 53, 83
Limiting opening height of
trunk lid* 159
Rear window defroster 189
Residual heat 191
Seat heater 114, 116
Seat ventilation* 117
Tow-away alarm 85
Windshield wipers 48
Activating steering wheel gearshift control
Downshifting 169, 172
Upshifting 169, 172
Adding
Coolant 279
Engine oil 277
Additional turn signals 353Adjustable air vents, rear passenger
compartment 192
Adjusting 34
Air distribution 184
Air volume 186
Backrest tilt 35
Drive-dynamic seat 163
Exterior rear view mirror 38
Head restraint height 36
Head restraint tilt 36
Instrument cluster illumination 131
Interior rear view mirror 38
Lumbar support 112
Mirrors 38
Multicontour backrest* 112
Power seat bench* 118
Seat cushion depth 35, 112
Seat cushion tilt 35
Seat fore and aft adjustment 35
Seat height 35
Seat in the lumbar region 113
Seat in the shoulder region 112
Seats 34
Steering column height 37
Steering column in or out 37
Page 411 of 435

410 Index
Fog lamps 353
Front lamps 353
High beam 353
High mounted brake lamp 354
License plate lamps 354, 358
Low beam 353
Parking and standing lamps 353
Parking lamps 354, 357
Rear fog lamp 354
Rear fog lamps 358
Side marker lamps 353, 357
Standing lamps 353, 354, 357
Tail lamp assemblies 354, 358
Turn signal lamps 353, 354
C
CAC (Customer Assistance Center) 402
Calling up
Distronic* settings 147
Range (distance to empty) 150
Service indicator 295
CAN system 402
Cargo tie-down hooks 230Cassette player
Operating 141
Catalytic converter 267
CD changer* 142
CD mode 142
CD player
Operating 141
Center console 25
AIRBAG OFF indicator lamp 311
Centigrade
Setting temperature units 154
Central locking
Automatic 106
From inside 107
Switch 107
Switching on/off (control
system) 159
Unlocking from inside 107
Changing
Batteries (SmartKey) 350
Battery (SmartKey with
KEYLESS-GO*) 351
CDs 142SmartKey setting 160
Vehicle level 219, 222
Charcoal filter 188
Activating 188
Deactivating 189
Charging
Vehicle battery 367
CHECK ENGINE malfunction indicator
lamp 306
Checking
Brake fluid 270
Coolant level 278
Oil level 271, 273
Oil level via control system 274
Tire inflate pressure 271
Vehicle lighting 271
Child safety 69
Airbags 60
Infant and child restraint systems 64,
69
LATCH child seat anchors 73
Cigarette lighter 239