379 Technical data
Fuels, coolants, lubricants, etc.
Fuel requirements
Only use premium unleaded fuel:
The octane number (posted at the
p um p) m us t be 91 mi n. It i s an a vera ge
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M) / 2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build-up of carbon
deposits.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to
engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss
!
To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:
Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible.
Avoid full throttle driving and abrupt
acceleration.
Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage.
Do not exceed 2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain.
384 Technical terms
COMAND
(C
ockpit Management and Data
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other op-
tional equipment (CD changer, tele-
phone, 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.
Differential locks
On slippery surfaces, differential locks
prevent one wheel of an axle from spin-
ning while the other wheel stands still,
resulting in driving force no longer be-
ing transferred.Cruise control
Driving convenience system that auto-
matically maintains the vehicle speed
set by the driver.
Curb weight
(
page 273)
DOT
(D
epartment of Transportation)
(
page 274)
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 Stability Program)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency Tensioning Device)
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 Service System)
Maintenance service indicator in the
speedometer display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates en-
gine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
service, and calls for the next mainte-
nance service accordingly.
386 Technical terms
Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(M
otor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline’s
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
A display field in the instrument cluster
used to present information provided
by the control system.
Normal occupant weight
(
page 274)Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
Engine
Clutch/torque converter
Transmission
Transfer case
Drive shaft
Differential
Axle shafts/axlesProduction options weight
(
page 275)
PSI
(P
ounds per square inch)
(
page 275)
Recommended tire inflation pressure
(
page 275)
Rear Parking Assist*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
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 system
Seat belts, belt tensioner, airbags and
child seat restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.
387 Technical terms
Rim
(
page 275)
RON
(R
esearch Octane Number)
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
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear selec-
tor lever from being moved out of
positionP without key turned and
brake pedal depressed.
Sidewall
(
page 275)SRS
(S
upplemental Restraint System)
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 Alarm Identification 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.
TIN
(Tire Identification Number)
(
page 275)
Tire load rating
(
page 265)
Tire ply composition and material used
(
page 275)
Tire speed rating
(
page 275)
Traction
(
page 275)
389 Index
A
ABS 25, 80, 383
LOW RANGE mode 81
Malfunction indicator lamp 290, 291
Messages in display 300
Warning lamp 290, 291
Accelerator position (Automatic
transmission) 153
Accessory weight 273
Accident
In case of 56
Activating
Air conditioning (cooling) 174
Air recirculation mode 172
Anti-theft alarm system 88
Central locking (control system) 142
Defrost 172
Easy-entry/exit feature 143
ESP 87
Exterior headlamps 51
Exterior lamps 111
Exterior rear view mirror parking
position 164
Headlamps 51
Rear window defroster 166
Windshield wipers 53Adding
Coolant 249
Engine oil 247
Additional turn signals 336
Adjusting 37
Air distribution 171
Air volume 171
Backrest tilt 39
Exterior rear view mirror 41
Head restraint height 39
Head restraint height, rear seats 103
Head restraint tilt 39
Instrument cluster illumination 120
Interior rear view mirror 41
Mirrors 41
Multicontour seat* 104
Seat cushion length 104
Seat cushion tilt 39
Seat fore and aft adjustment 38
Seat height 39
Seats 37
Steering column in/out 40
Steering column up/down 40
Steering wheel 40Air conditioning (cooling)
Turning off 174
Turning on 174
Air conditioning refrigerant 378
Air distribution
Adjusting 171
Air pressure 273
Air pressure see Tire inflation pressure
Air recirculation mode 172
Activating 172
Deactivating 172
Air volume
Adjusting 171
AIRBAG OFF indicator lamp 297
Airbags 63
BabySmart
TM airbag deactivation
system 74, 383
Front 67
Safety guidelines 66
Window curtain airbags 68
394 Index
D
Data recording (vehicle) 20
Daytime running lamp mode 112
Setting 138, 139
Deactivating
Air conditioning (cooling) 174
Air recirculation mode 172
Alarm 89
Anti-theft alarm system 89
Central locking (control system) 142
Cruise control 182
Defrost 172
ESP 86
Exterior lamps 111
Exterior lamps delayed shut-off 140
Headlamps 58
Immobilizer 88
Interior lighting delayed shut-off 141
Rear window defroster 167
Tow-away alarm 90
Deep water see Standing water
Defogging
Windshield 171
Defrosting 172Delayed shut-off
Exterior lamps 140
Interior lighting 141
Department of Transportation see DOT
Dialing
A number (telephone) 148
Differential locks 159, 384
Switching off 162
Switching on 161
Difficulties
While driving see Problems while driv-
ing
With starting 49
Digital speedometer 128
Direction of rotation (tires) 255
Discharged battery
Jump starting 356
Disconnecting
Vehicle battery 354
Display
Selecting 138Displays
Digital speedometer 128
Maintenance service indicator 280
Messages 245, 298
Selecting 138
Showing vehicle status
messages 131
Distance to empty (range)
Calling up 145
Door control panel 31
Door handle 31
Door sill panels
Cleaning 288
Door unlock
With Tele Aid 209
Doors
Messages in display 310
Opening from the inside 96
Opening from the outside 94
DOT 274
Downhill driving
Cruise control 182
Downshifting 155
Drink holders see Cup holders
Drinking and driving 220
395 Index
Driving
General instructions 43, 220
In winter 225
Problems 55
Safety systems 80
Through standing water 226
Driving abroad 236
Driving and safety systems
4-ETS 83
ABS 80
BAS 82
EBB 84
ESP 84
Driving instructions 220
Passenger compartment 227
Driving off 222
Driving systems 181
Cruise control 181
Driving safety systems 80
Driving through water 231
E
Easy-entry/exit feature 100
Activating 143
EBB 80, 84
Electrical fuses 362
Electrical outlet 200Electrical system
Technical data 374
Electronic Brake Booster (EBB) 84
Electronic Stability Program see ESP
Electronic Traction System (ETS) 83
Emergency call system 202
Emergency calls
Initiating an emergency call 205
With Tele Aid 204
Emergency operation (Limp Home
Mode) 156
Emergency operations
Closing tilt/sliding sunroof 330
Locking the vehicle 328
Opening tilt/sliding sunroof 330
Remote door unlock 209
Unlocking the tailgate 327
Unlocking the vehicle 327
Emergency tensioning device see ETD
Emission control 237
Emission control information label 368
Ending
A call (telephone) 147Engine
Compartment 242
Message in display 294
Starting with SmartKey 49
Technical data 370
Turning off with SmartKey 58
Engine air filter
Messages in display 310
Engine cleaning 285
Engine compartment 242
Hood 242
Engine malfunction indicator lamp 25,
294
Engine number 384
Engine oil 243, 377
Adding 247
Additives 378
Checking level 243
Consumption 243
Display messages 312
Messages in display 245, 311
Oil dipstick 247
Viscosity 384
396 Index
Engine oil level see Oil level
Enlarged cargo compartment 188
ESP 25, 80, 84, 384
Messages in display 302
Switching off 86
Switching on 87
Synchronizing 302
Warning lamp 295
ETD 62, 71, 384
Safety guidelines 66
Exterior lamp switch 110
Exterior lamps
Delayed shut-off 140
Exterior rear view mirrors
Adjusting 41
Parking position for 144
F
Fahrenheit
Setting temperature units 136
Fastening the seat belts 43
Fine adjustment
Cruise control 183
First aid kit 323Flat tire 348
Lowering the vehicle 352
Mounting the spare wheel 349
Spare wheel 325
Flexible Service System (FSS, Canada
vehicles) 384
Fog lamp, rear 114, 336
Fog lamps, front 113
Messages in display 315
4-ETS 80, 83
Front airbags 67
Front axle differential lock
Switching on 162
Front fog lamps
Replacing bulbs 336, 340
Front lamps
Messages in display 314, 316
Replacing bulbs 336, 338
Switching on 110
Front seat head restraints
Installing 102
Removing 101
Front towing eye 361
Front turn signal lamp
Replacing bulbs 342FSS (Flexible Service System, Canada
vehicles) 384
Fuel 240
Additives 379
Fuel reserve warning lamp 296
Gasoline additives 379
Premium unleaded gasoline 240,
376, 378
Refueling 239
Requirements 379
Reserve warning 25
Technical data 376
Fuel additives 379
Fuel consumption statistics
After start 145
Since last reset 145
Fuel filler flap 239
Locking 239
Opening 328
Unlocking 239
Fuel requirements 379
Fuel reserve tank
Message in display 313
Fuel tank
Capacity 376
Filler flap 239