
1, 2, 3 ...
115 V socket  ...................................... 201
12 V socket  ........................................ 200
4ETS (Electronic Traction System) Function/notes ................................ 58
4MATIC (permanent four-wheel
drive)  .................................................. 149
A
ABS (Anti-lock Brake System) Display message  ............................ 171
ABS (Anti-lock Braking System)
Function/notes ................................ 56
Warning lamp ................................. 185
Accident (notes)  ................................ 229
Active service system see Service interval display                      
Additives
Engine oil  ....................................... 279
Adjusting the seat  ............................... 78
Air bag PASSENGER AIR BAG
OFF-  indicator lamp  .......................... 39
Air bags
Front air bag (driver, front
passenger)  ....................................... 37
Important safety notes  ....................36
Safety guidelines  ............................. 35
Window curtain air bag  ....................39
Air-conditioning system
see Climate control                                   
Air pressure
see Tire pressure  ........................... 249
Air vents  ............................................. 113
Important safety notes  ..................112
Rear  ............................................... 113
Setting the center air vents  ...........113
Setting the side air vents  ...............113
see Air outlets                                           
Alarm system
see ATA                                                     
Anti-lock Braking System
see ABS                                                     
Anti-Theft Alarm system
see ATA                                                     
Anti-theft system
ATA (Anti-Theft Alarm system)  .........59
Tow-away alarm  ............................... 60
Ashtray  ............................................... 198
ATA (Anti-Theft Alarm system) Activating/deactivating  ...................59
Function ........................................... 59
Switching off the alarm  ....................59
AUTO lights
Display message  ............................ 172
Automatic car wash  .......................... 221
Automatic transmission Driving tips  .................................... 123
Emergency running mode  ..............126
Important safety notes  ..................121
Kickdown  ....................................... 123
Malfunction .................................... 126
Pulling away  ................................... 118
Releasing the parking lock
manually  ........................................ 126
Selector lever  ................................ 122
B
backup lamp Display message  ............................ 174
BAS (Brake Assist System)  ................. 56
Battery Charging  ........................................ 236
Checking (SmartKey)  .......................64
Display message  ............................ 176
Important safety guidelines
(SmartKey)  ....................................... 64
Jump-starting  ................................. 238
Maintenance (vehicle) .................... 235
Replacing (SmartKey)  ......................64
Battery (vehicle)
Important safety notes  ..................235
Belt
see Seat belts                                           
Brake fluid
Display message  ............................ 171
Notes  ............................................. 280
Brake fluid level  ................................ 219
Brake lamp (display message)  ......... 172
Brakes ABS  .................................................. 56
BAS  .................................................. 56
4IndexProCarManuals.com 

Driving safety systemEBD (Electronic Brake force
Distribution)  ..................................... 59
ESP ®
 (Electronic Stability
Program)  .......................................... 57
Important safety information  ...........55
Driving safety systems
4ETS (Electronic Traction System)  ...58
ABS (Anti-lock Braking System)  .......56
BAS (Brake Assist System)  ..............56
Overview  .......................................... 55
Driving systems
Cruise control  ................................ 147
Rear view camera  .......................... 152
Driving tips  ........................................ 123
Braking  .......................................... 139
Downhill gradients  .........................137
Driving on flooded roads  ................140
Driving on sand  .............................. 144
Driving on wet roads  ......................140
Driving over obstacles  ...................145
Off-road driving  .............................. 142
Off-road fording  ............................. 140
Tire ruts  ......................................... 144
Wet road surface  ........................... 138
Winter  ............................................ 141
DVD audio (on-board computer)  ...... 161
E
EASY-ENTRY feature  ............................ 84
Activating/deactivating (on-
board computer)  ............................ 165
EASY-EXIT feature  ............................... 84
EBD (Electronic Brake force
Distribution) Function/notes ................................ 59
Electrical fuses
see Fuses                                                  
Electronic Brake force
see EBD                                                     
Electronic Stability Program
see ESP ®
                                                  
Electronic Traction Support
see 4ETS                                                   
Emergency call
see mbrace                                               
Emergency release
Fuel filler flap  ................................. 133
Vehicle  ............................................. 68
Emergency running mode
Automatic transmission  .................126
Emergency tensioning device
Function ........................................... 49
Safety guidelines  ............................. 35
Emissions purification
Service and warranty information  ....17
Engine
Display message  ............................ 174
Irregular running  ............................ 120
Starting problems  ..........................120
Starting the engine with the
SmartKey  ....................................... 117
Switching off  .................................. 135
Warning lamp Check Engine  ..........188
Engine electronics
Malfunction .................................... 120
Engine number  .................................. 276
Engine oil Adding  ........................................... 216
Additives  ........................................ 279
Checking the oil level ..................... 215
Display message  ............................ 176
Notes about oil grades ................... 279
Viscosity  ........................................ 279
ESP ®
 (Electronic Stability
Program) Activating/deactivating  ...................58
Display message  ............................ 170
Important safety information  ...........57
Exhaust check  ................................... 137
Exhaust tail pipe (cleaning
instructions)  ...................................... 224
Exterior lighting Delayed switch-off (on-board
computer)  ...................................... 164
Exterior mirrors
Adjusting  ......................................... 85
Dipping (automatic)  .........................87
Malfunction ...................................... 87
Out of position (troubleshooting)  .....86
Storing settings (memory
function)  .......................................... 88
Storing the parking position ............. 87Index7ProCarManuals.com 

RCheck the depth of water before fording
rivers and streams.
R When fording, do not stop and do not
switch off the engine.
R Look out for obstacles such as rocks, holes,
tree stumps and furrows.
R Always keep the doors, rear door, windows
and the sliding sunroof closed while the
vehicle is in motion.
R Switch off cruise control.
R Do not stray from marked routes or paths.
R Adapt your speed to the terrain. The
rougher, steeper or more ruts on the
terrain, the slower your speed should be.
R Drive slowly and at an even speed through
the water. Ensure that a bow wave does not
form as you drive.
R On sand, drive quickly to overcome the
rolling resistance. Otherwise, the vehicle
could dig itself into the sand.
R Do not jump with the vehicle as this will
interrupt the vehicle's propulsion.
R Avoid high engine speeds. Drive at
reasonable engine speeds (maximum
3000 rpm).
R Do not shift the automatic transmission to
transmission position  N.
R Always check the vehicle for damage after
off-road driving.
i Information about retrofitting special all-
terrain tires is available from any
authorized Mercedes-Benz Center.HEnvironmental note
Protection of the environment is of primary
importance. Treat nature with respect.
Observe all prohibiting signs.
Checklist before driving off-road
XEngine oil level:  check the engine oil and
top it up if necessary.
Only then does the engine receive enough
oil when the vehicle is standing on a steep
incline.!  If the engine oil warning lamp lights up
while the vehicle is in motion, stop the
vehicle in a safe place as soon as possible.
Check the engine oil level. The engine oil
warning lamp warning must not be ignored.
Continuing the journey while the symbol is
displayed could lead to engine damage.XWheel-changing tool kit:  check that the
jack is working and make sure you have the
wheelbrace, a robust tow cable and a
folding spade in the vehicle.XWheels and tires:  check the tire tread
depth and tire pressure.XCheck for damage and remove any foreign
objects, e.g. small stones, from the
wheels/tires.XReplace any missing valve caps.XReplace dented or damaged wheels.XCarry a sound spare wheel.
Checklist after driving off-road
GWarning
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possible
damage to your vehicle has occurred, you
should turn on the hazard warning flashers,
carefully slow down, and drive with caution to
an area which is a safe distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle appears
unsafe, have the vehicle towed to the nearest
authorized Mercedes-Benz Center or tire
dealer for repairs.
Driving over rough terrain places greater
demands on your vehicle than driving on
normal roads. After driving off-road, check
the vehicle. This allows you to detect damage
promptly and reduce the risk of an accident
to yourself and other road users.
XShift the transfer case to  HIGH 
 ( Y  page 126).XDisengage the differential locks
( Y  page 129).Driving tips143Driving and parkingZProCarManuals.com 

Menus and submenus
Overview of menus
The number of menus shown depends on the optional equipment in the vehicle.
Function:Standard display  menu (Y page 160)
R tire pressure monitor ( Y page 253)
R service interval display ( Y page 219)
R G 55 AMG: oil level ( Y page 215);Audio  menu ( Y page 160)=Navigation  menu (Y page 162)?Message memory 12
 menu ( Y page 169)ASettings  menu (Y page 162)BTrip computer  menu (Y page 166)CTelephone  menu (Y page 167)12
The menu is only visible when there is a display message.Menus and submenus159On-board computer and displaysZProCarManuals.com  

Standard display menu
Standard displayXPress the  V or U  button on the
steering wheel to select the standard
display.
Standard display
:Trip odometer;Odometer
You can select the following functions in the
Standard display  menu using the & or
*  button:
R tire pressure monitor ( Y page 253)
R digital speedometer or outside
temperature ( Y page 160)
R Service display ( Y page 219)
R G 55 AMG:  oil level (Y page 215)
XTo reset the trip odometer:  press and
hold the reset button in the instrument
cluster until the trip odometer is reset.
Displaying the digital speedometer or
outside temperature
If you have selected the digital speedometer
as the status line ( Y page 163), the outside
temperature is displayed here 13
.
GWarning!
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the road
surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Digital speedometer (example)
Outside temperature (example)
XPress the  V or U  button on the
steering wheel to select the standard
display.XPress the  & or *  button on the
steering to select digital speedometer  :
or the outside temperature.
Audio menu
Selecting a radio station
i SIRIUS XM satellite radio acts like a
normal radio.
For more information on satellite radio
operation, see the separate operating
instructions.
13 Vehicles for the United Kingdom: the outside temperature is always displayed.160Menus and submenusOn-board computer and displays
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Display messagesPossible causes/consequences and M Solutions?The engine fan is defective.XAt coolant temperatures under 248  ‡ (120  †), drive to the next
qualified specialist workshop.XAvoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.#The battery is not being charged.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronicsXPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.XOpen the hood.XCheck whether the poly-V-belt is torn.
If the poly-V-belt is torn:
!  Do not continue driving. The engine could otherwise overheat.
XConsult a qualified specialist workshop.
If the poly-V-belt is OK:
XVisit a qualified specialist workshop.The battery voltage is too low.XSwitch off electrical consumers that are not required.XHave the battery and alternator checked at a qualified specialist
workshop.The battery has been charged or the vehicle has been jump-
started.XHave the battery and alternator checked at a qualified specialist
workshop.4
Check oil level at 
next gas stationThe engine oil level has dropped to a critical level.XCheck the oil level ( Y page 215).XIf necessary, add engine oil ( Y page 216).XHave the engine checked for leaks if you need to add engine oil
more often than usual.You have added too much engine oil. There is a risk of damaging
the engine or catalytic converter.XSiphon off excess engine oil until it is at the specified level.
Observe the legal requirements.176Display messagesOn-board computer and displays
ProCarManuals.com 

Display messagesPossible causes/consequences and M SolutionsThere is water in the engine oil.XHave the engine oil examined at a qualified specialist workshop.The measuring system is malfunctioning.XVisit a qualified specialist workshop.4
Engine Oil Level 
Service RequiredThe engine oil level has dropped to a critical level.XCheck the oil level ( Y page 215).XIf necessary, add engine oil ( Y page 216).XHave the engine checked for leaks if you need to add engine oil
more often than usual.You have added too much engine oil. There is a risk of damaging
the engine or catalytic converter.XSiphon off excess engine oil until it is at the specified level.
Observe the legal requirements.There is water in the engine oil.XHave the engine oil checked.4
At next~gas 
station add 
1.0 qt. engine oil
(USA only)
At next~gas 
station add 
1.0 liter engine 
oil
(Canada only)The engine oil level is too low.XCheck the oil level ( Y page 215).XIf necessary, add engine oil ( Y page 216).XHave the engine checked for leaks if you need to add engine oil
more often than usual.
Information on approved engine oils can be obtained from any qualified specialist workshop
or on the Internet at http://www.mbusa.com (USA only).
!  The oil level is too low. Avoid long journeys with too little engine oil. There is a risk of
engine damage.
The display messages and the corresponding symbol that indicate that the oil level is too
low must not be ignored.
Display messages177On-board computer and displaysZProCarManuals.com 

Display messagesPossible causes/consequences and M Solutions4
Engine Oil Level 
Stop, Turn Engine 
OffThe engine oil level is too low. There is a risk of engine damage.XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.XSwitch off the engine.XAdd engine oil ( Y page 216) and check the oil level
( Y  page 215).8
Reserve FuelThe fuel level has fallen below the reserve range. The fuel gauge's
needle does not move any further down. The operation of the
auxiliary heating can no longer be guaranteed.XRefuel at the nearest gas station.8
Gas cap is openThe fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.XCheck that the fuel filler cap is correctly closed.XIf the fuel filler cap is not correctly closed:  close the fuel filler
cap.XIf the fuel filler cap is closed:  visit a qualified specialist
workshop.´
Clean Fuel FilterThere is water in the fuel filter. The water must be drained off.XVisit a qualified specialist workshop.
Driving systems
Display messagesPossible causes/consequences and  M SolutionsAAS
Service RequiredGRisk of accident
AAS is not available due to a malfunction. The vehicle may roll
back on a gradient as soon as you remove your foot from the
accelerator pedal.
XDrive on carefully.XVisit a qualified specialist workshop immediately.Cruise Cont. 
InoperativeCruise control is inoperative.XVisit a qualified specialist workshop.178Display messagesOn-board computer and displays
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