Page 382 of 416

382 Technical termsCOMAND
(C
ockpit M
anagement and D
ata 
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 271)
DOT
(Department o
f Transportation)
(
page 271)
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 
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. 
     
        
        Page 393 of 416

393 Index
Driving
General instructions 43, 216
In winter 221
Problems 55
Safety systems 80
Through standing water 222
Driving abroad 232
Driving and safety systems
4-ETS 83
ABS 80
BAS 82
EBB 84
ESP 84
Driving instructions 216
Passenger compartment 223
Driving off 218
Driving systems 176
Cruise control 176
Driving safety systems 80
Driving through water 227E
Easy-entry/exit feature 100
Activating 142
EBB 80, 84
Electrical fuses 360
Electrical outlet 196
Electrical system
Technical data 372
Electronic Brake Booster (EBB) 84
Electronic Stability Program see ESP
Electronic Traction System (ETS) 83
Emergency call system 198
Emergency calls
Initiating an emergency call 201
With Tele Aid 199
Emergency operation (Limp Home 
Mode) 153
Emergency operations
Closing tilt/sliding sunroof 328
Locking the vehicle 326
Opening tilt/sliding sunroof 328
Remote door unlock 205
Unlocking the tailgate 325
Unlocking the vehicle 325
Emergency tensioning device see ETD
Emission control 233Emission control information label 366
Ending
A call (telephone) 146
Engine
Compartment 238
Message in display 292
Starting with SmartKey 49
Technical data 368
Turning off with SmartKey 58
Engine air filter
Messages in display 308
Engine cleaning 282
Engine compartment 238
Hood 238
Engine malfunction indicator 
lamp 25, 292
Engine number 382
Engine oil 239, 375
Adding 243
Additives 376
Checking level 239
Consumption 239
Display messages 310
Messages in display 241, 309
Oil dipstick 243
Viscosity 382 
     
        
        Page 401 of 416

401 Index
N
Navigation system
Operating 130
See separate COMAND operating 
instructions
Night security illumination 113
Setting 139
Normal occupant weight 272O
Occupant distribution 272
Occupant safety 62
Airbags 63
Children in the vehicle 72
Fastening the seat belt 43
Infant and child restraint systems 72
LATCH child seat anchors 77
Seat belts 43, 66
Odometer, main 25
Off-road driving 223
Checklist 225
Crossing obstacles 228
Driving through water 227
Returning 230
Rules 224
Special driving features 224
Steep terrain 226
Oil
Adding 243
Consumption 239
Dipstick 239
Oil dipstick 243
Viscosity 382Oil level
Checking 237
One-touch gearshifting 149
Canceling gear range limit 150
Downshifting 149
Upshifting 149
Opening
Ashtray 194
Doors from the inside 96
Fuel filler flap 235
Fuel filler flap manually 326
Glove box 190
Hood 238
Side windows 171
Tailgate 97, 98
Tilt/sliding sunroof 173, 328
Tilt/sliding sunroof in an 
emergency 328
Tilt/sliding sunroof with 
SmartKey 175
Windows 171
Windows with SmartKey 172