
1, 2, 3 ...
4MATIC (permanent four-wheel
drive)................................................... 105A
ABS (Anti-lock Brake System) Display message (luxury multi-
function steering wheel) .........183, 185
Display message (multi-function
steering wheel). .............................. 178
ABS (Anti-lock Braking System).......... 51
Warning lamp.................................. 201
Acceleration ........................................ 249
Accident Notes. ............................................. 205
Acoustic warning signal
see Warning tone
Active Service System PLUS
see Service interval display
Adaptive brake lamps ..........................52
Airbags Activation.......................................... 35
Control unit....................................... 35
Driver's ............................................. 38
Driver's knee airbag. .........................39
Front. ................................................ 38
Front passenger ................................ 38
PASSENGER AIRBAG OFF warning
lamp .............................................. 200
Sidebag............................................. 39
System.............................................. 37
Windowba g....................................... 39
Air conditioning
2-zone Thermatic ............................ 118
3-zone Thermotronic....................... 120
Activating/deactivating ..................121
Activating/deactivating air-recir-
culation mode. ................................ 125
Controlling automatically. ...............122
Convenience opening/closing
(air-recirculation mode). .................126
Cooling with air dehumidification ...121
Demisting the windscreen ..............124
Malfunction indicator lamp. ............199
Misted-up windows. ........................125
Rear window heating ......................125Setting the air distribution.
.............124
Setting the airflow .......................... 124
Setting the air vents .......................122
Setting the temperature .................122
Switching the residual heat func-
tion on/off ...................................... 126
Air-conditioning system
see Air conditioning
Air filter
Display message ............................. 195
Air pressure
see Tyre pressure
Antifreeze concentration................... 248
Anti-lock braking system see ABS
Anti-theft alarm system
see ATA
Anti-theft systems................................ 54
Ashtray ................................................ 138
ASSYST PLUS see Service interval display
ASSYST PLUS service indicator ........167
Calling up the date (on-board
computer). ...................................... 167
ATA (anti-theft alarm system) .............54
Switching off the alarm. ....................55
Audio
On-board computer (luxury multi-
function steering wheel) ...................98
Audio DVD
Operating (on-board computer,
luxury multi-function steering
wheel). .............................................. 99
AUTO lights
Display message ............................. 189
Automatic car wash ...........................168
Automatic transmission Changing gear yoursel f..................... 86
Driving tips ....................................... 87
Emergency running mode ...............209
Indicator in the multi-function dis-
play .................................................. 85
Malfunction..................................... 209
One-touch gearshifting. ....................86
Program selector button ...................87
Releasing the parking lock man-
ually. ............................................... 2154 Index
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Central locking
Automatic door locking feature
(on-board computer, luxury multi-
function steering wheel). ................104
Key. .................................................. 58
Central locking/unlocking button ......59
Central unlocking Key. .................................................. 58
Centre console
Overview. .......................................... 30
Changing a wheel
see Flat tyre
Checklist (off-road driving)............... 159
Child-proof locks Rear doors. ....................................... 50
Children
In the vehicle. ................................... 41
Restraint systems. ............................ 41
Child seat
Automatic recognition ......................43
Automatic recognition (malfunc-
tion). ............................................... 200
Display message ............................. 182
ISOFIX............................................... 49
Recommendations. ...........................46
Suitable positions. ............................ 44
Cigarette lighter................................. 138
Cleaning the panorama sliding
sunroof................................................ 170
Cleaning the windscreen ..................169
Collapsible wheel Technical data. ............................... 253
COMAND display
Cleaning. ........................................ 170
Constant headlamp mode
see Daytime driving lights
Convenience closing ............................82
Convenience opening ........................... 82
Coolant Checking the level. .........................149
Display message (luxury multi-
function steering wheel) .................186
Display message (multi-function
steering wheel). ......................180, 186
Mixture ratio ................................... 247
Temperature gauge ...........................90
Warning lamp.................................. 202 Cornering lights
Display message ............................. 187
Cruise control..................................... 108
Display message ............................. 182
Cup holder.......................................... 131
Current fuel consumption On-board computer (multi-func-
tion steering wheel). ...................93, 96 D
Dashboard Cleaning. ........................................ 170
see Instrument cluster
Date
Setting (on-board computer,
luxury multi-function steering
wheel). ............................................ 102
Setting (on-board computer,
multi-function steering wheel) ..........93
Daytime driving lights.......................... 75
On-board computer (luxury multi-
function steering wheel) .................102
Delayed switch-off
Exterior lighting (luxury multi-
function steering wheel) .................103
Interior lighting (on-board com-
puter, luxury multi-function steer-
ing wheel). ...................................... 103
Diesel
Low outside temperatures. .............146
Diesel engine
Winter driving. ................................ 146
Digital speedometer............................ .96
Dipped-beam headlamps Display message ............................. 188
Symmetrical. .................................. 162
Display message................................ 176
Display messages Service interval display. ..................167
Symbol messages. ..........................182
Text messages. ............................... 177
Distance recorder
see Total distance recorder
see Trip meter 6 Index
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H
Headlamp cleaning system............... 149
Headlamps Cleaning. ........................................ 169
Cleaning system. .............................. 77
Misting up. ...................................... 210
Head restraint
Adjusting (front).......................... 63, 64
NECK-PRO. ....................................... 40
Removing (rear). ............................... 64
Resetting triggered head
restraints. ....................................... 215
Head restraints
Adjusting (rear). ................................ 64
Heating
see Air conditioning
High-pressure cleaners..................... 168
Hill start assist..................................... 84
Hook.................................................... 136I
Immobiliser........................................... 54
Indicator and warning lamp Automatic child seat recognition
(malfunction). ................................. 200
Brakes (red). ................................... 202
Coolant. .......................................... 202
Engine diagnostics ..........................203
PASSENGER AIRBAG OFF .........43, 200
Reserve fuel. ................................... 204
Seat belt. ........................................ 203
SRS........................................... 35, 202
Thermotronic (malfunction) ............199
Indicator and warning lamps............ 201
Indicator lamps see Warning and indicator lamps
Instrument cluster ............................... 90
On-board computer (luxury multi-
function steering wheel) .................101
Overview (luxury multi-function
steering wheel). ................................ 26
Overview (multi-function steering
wheel). .............................................. 24Intelligent Light System
......................77
Display message (luxury multi-
function steering wheel) .................192
On-board computer (luxury multi-
function steering wheel) .................103
Interior lighting
Automatic control system .................79
Emergency lighting. ..........................79
Manual control.................................. 79
On-board computer (luxury multi-
function steering wheel) .................103
Reading lamp .................................... 79
Interior motion sensor......................... 55
ISOFIX child seat securing system .....49 J
Jack...................................................... 175 Operation........................................ 227
Jump-starting ...................................... 234
Jump leads ...................................... 234 K
Key......................................................... 58 Changing the battery ......................216
Checking the battery ......................216
Display message (multi-function
steering wheel). .............................. 181
Loss. ............................................... 212
Malfunction..................................... 212
Modifying the programming. .............58
Key positions
Key. .................................................. 61
Kickdown........................................ 88, 89 L
Lamps see Warning and indicator lamps
Lashing eyelets.................................. 133
Licence plate lighting Display message ............................. 192
Lighting
see Lights
Lights
Active light function ..........................77
Automatic headlamp mode. ..............75
Cornering light function ....................78 Index
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Dipped-beam headlamps.
.................75
Display messages (luxury multi-
function steering wheel) .................194
Display messages (multi-function
steering wheel). .............................. 194
Foglamps. ................................... 75, 78
Hazard warning lamps. .....................76
Headlamp flasher.............................. 76
Headlamp range. .............................. 77
Light switch. ..................................... 74
Main-beam headlamps..................... .76
Motorway mode ................................ 78
Rear foglamp. ................................... 75
Switching the daytime driving
lights on/off (on-board computer,
luxury multi-function steering
wheel). ............................................ 102
Switching the exterior lighting
delayed switch-off on/off (on-
board computer, luxury multi-
function steering wheel) .................103
Switching the Intelligent Light
System on or off (on-board com-
puter, luxury multi-function steer-
ing wheel). ...................................... 103
Switching the surround lighting
on/off (on-board computer,
luxury multi-function steering
wheel). ............................................ 103
Turn signals. ..................................... 76
LIM indicator lamp
Cruise control. ................................ 108
Variable Speedtronic. .....................111
Loading guidelines .............................129
Locking Automatic. ........................................ 59
Emergency locking .........................214
From the inside (central locking
button) .............................................. 59
Luggage compartment enlarge-
ment.................................................... 132
Luggage compartment floor opening/closing. ............................ 136
stowage well, unde r........................ 136
Luggage cover .................................... 133
Luggage net Front-passenger footwell ................131Lumbar support
.................................... 65
4-way. ............................................... 65
Luxury multi-function steering
wheel..................................................... 93
Overview. .......................................... 29 M
Main-beam headlamps Display message ............................. 192
Maintenance
Battery ............................................ 232
Manual drive program .........................88
Maximum speed................................. 249
Memory card (on-board computer,
luxury multi-function steering
wheel).................................................... 99
Memory function.................................. 69
Menu (luxury multi-function steer-
ing wheel)
Audio. ............................................... 98
Menu overview................................. .95
Navigation......................................... 97
Service............................................ 101
Telephone. ........................................ 99
Trip computer. .................................. 95
Menu (multi-function steering wheel)
Menu overview................................. .92
Range/current fuel consumption...... 93
Setting the time/dat e.......................93
Standard display. .............................. 92
Trip computer. .................................. 92
Messages
see Display messages
see Warning and indicator lamps
Minispare emergency spare wheel
Technical data. ............................... 253
Mirrors
Sun visor......................................... 138
see Exterior mirrors or Rear-view mirror
Mobile phone...................................... 140
Installation. ..................................... 243
On-board computer (luxury multi-
function steering wheel) ...................99
Modifying the programming
Key. .................................................. 5810 Index
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MP3
Operating (on-board computer,
luxury multi-function steering
wheel). .............................................. 99
Multi-function display
Luxury multi-function steering
wheel. ............................................... 94
Multi-function steering wheel. ..........91
Multi-function steering wheel............. 91
Overview. .......................................... 28
Multi-function steering wheel (12-
button)
see Luxury multi-function steering wheel N
Navigation On-board computer (luxury multi-
function steering wheel) ...................97
NECK-PRO head restraints ..................40
Resetting after being triggered. ......215
Notes on running in a new vehicle ...144 O
Odometer Total distance recorder. ..............92, 95
Trip meter. .................................. 92, 95
Off-road
4MATIC ........................................... 105
DSR. ............................................... 105
Off-road ABS. .................................... 51
Off-road drive program. ..................107
Off-road ABS ......................................... 51
Off-road drive program (vehicles
with off-road engineering package) .107
Off-road driving Checklist......................................... 159
Information. .................................... 158
Off-road ESP ®
........................................ 54
Off-road terrain Off-road ESP. .................................... 54
Oil
Consumption. ................................. 148
Topping up. ..................................... 148
On-board computer (luxury multi-
function steering wheel) ......................93
Audio menu ...................................... 98Convenience submenu.
..................104
Display messages ........................... 176
Factory settings submenu ..............104
Instrument cluster submenu ...........101
Lights submenu. ............................. 102
Navigation menu. .............................. 97
Overview. .......................................... 95
Service menu .................................. 101
Settings menu ................................ 101
Standard display submenu................ 95
Telephone menu. .............................. 99
Time/date submenu. ......................102
Trip computer menu. ........................95
Vehicle submenu. ........................... 104
On-board computer (multi-func-
tion steering wheel)............................. 91
Display messages ........................... 176
Overview. .......................................... 92
Range. .............................................. 93
Standard display. .............................. 92
Time/date. ....................................... 93
Trip computer. .................................. 92
On-board computer menu (luxury
multi-function steering wheel).......... 101
One-touch gearshifting........................ 86
Operating system see On-board computer (luxury
multi-function steering wheel)
see On-board computer (multi-
function steering wheel)
Outside temperature display .............90
Override feature Rear side windows ............................ 50 P
Paint code........................................... 244
Panorama sliding sunroof................. 127
Rain closing feature. .......................128
Resetting. ....................................... 129
Parking .................................................. 84
Parking aid Exterior mirror on the front-
passenger side.................................. 69
Parktronic. ...................................... 113
Reversing camera. ..........................115
Parking brake ....................................... 84
Display message ............................. 185 Index
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Standard display
On-board computer (luxury multi-
function steering wheel). ..................95
On-board computer (multi-func-
tion steering wheel). .........................92
Station
see Radio
Steering wheel
Adjusting .......................................... 66
Buttons (on-board computer,
luxury multi-function steering
wheel). .............................................. 93
Buttons (on-board computer,
multi-function steering wheel) ..........91
Storing settings ................................ 69
Steering wheel boss
Cleaning. ........................................ 170
Steering wheel gearshift paddles....... 88
Stowage compartment ......................129
Armrest (under) .............................. 130
Glove compartment. .......................130
Rear seat armrest. ..........................131
Stowage compartments
Under driver's seat/front-
passenger seat. .............................. 130
Submenu (luxury multi-function
steering wheel)
Convenience ................................... 104
Factory settings .............................. 104
Instrument cluster .......................... 101
Lights ............................................ .102
Standard display. .............................. 95
Time/date. ..................................... 102
Vehicle............................................ 104
Summer opening
see Convenience opening
Sun visor............................................. 137
Supplemental Restraint System see SRS
Surround lighting
On-board computer (luxury multi-
function steering wheel) .................103
Switching off the alarm
ATA. .................................................. 55 T
Tailgate Display message ............................. 183
Emergency unlocking...................... 214
Limiting the opening angle................ 61
Tail lamp
Display message ............................. 191
Tail lamps
changing. ........................................ 220
Display message ............................. 191
Tail pipes
Cleaning. ........................................ 171
Tank
see Fuel tank
Tank capacity ..................................... 245
Technical data GLK 280 4MATIC ............................ 249
GLK 320 CDI 4MATIC .....................250
GLK 350 4MATIC ............................ 249
Trailer loads .................................... 254
Tyres. .............................................. 252
Wheels. ........................................... 252
Telephone
see Mobile phone
Telephone compartment ...................130
Temperature Coolant. ............................................ 90
Outside temperature......................... 90
Thermatic
Malfunction indicator lamp. ............199
Thermotronic
Malfunction indicator lamp. ............199
Tightening torque............................... 231
Time Setting (on-board computer,
luxury multi-function steering
wheel). ............................................ 102
Setting (on-board computer,
multi-function steering wheel)
......................................................... 93
TIREFIT kit
Using. ............................................. 222
TopTether .............................................. 49
Total distance recorder................. 92, 95
Tow-away protection........................... 55
Towing................................................. 23814 Index
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Exterior viewFunctionPage
:Luggage compartment59
Vehicle tool kit175
;Rear window heating125
=Lights218
?Fuel filler flap144
ADemisting the windscreen124
Cleaning the windows169
BPanorama sliding sunroof*127
FunctionPage
CExterior mirrors67
DWindscreen wipers79
EOpening the bonnet146
Engine oil148
Coolant149
FTowing236
GTyres and wheels150
Flat tyre222
22Exterior view
At a glance
* optional
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Never tamper with electronic components
and their software.
SRS (Supplemental Restraint System)
The SRS reduces the risk of occupants com-
ing into contact with the vehicle's interior in
the event of an accident. It can also reduce
the forces to which occupants are subjected
during an accident.
The SRS consists of:
R the 6 SRS warning lamp
R belt tensioners
R belt force limiters
R airbags
The 6 6SRS warning lamp The SRS functions are checked regularly
when you turn on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The
6 warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. G
Risk of injury
If SRS is malfunctioning, individual systems
may be activated unintentionally or not be
deployed in the event of an accident with
heavy braking.
A malfunction has occurred if the 6warn-
ing lamp:
R does not light up when you switch on the
ignition
R does not go out after the engine has been
running for a few seconds
R lights up again once the engine is running
In this case, have SRS checked immediately
at a qualified specialist workshop. Triggering of belt tensioners, belt force
limiters and airbags In the event of a collision, the sensor in the
airbag control unit evaluates important phys-
ical data such as duration, direction and force
of the vehicle deceleration or acceleration.
Based on the evaluation of this data and
depending on the vehicle's rate of longitudi-
nal deceleration in a collision, in the first
stage the airbag control unit pre-emptively
triggers the belt tensioners.
i
The front belt tensioners can only be trig-
gered if the belt tongue is correctly
engaged in the seat belt buckle.
The front airbags are only deployed if there is
an even higher rate of vehicle deceleration in
a longitudinal direction.
Your vehicle has adaptive, dual stage front
airbags. When the first activation threshold is
reached, the front airbag is filled with enough
propellant gas to reduce the risk of injuries.
The front airbag is only fully inflated if a sec-
ond threshold is reached within a few milli-
seconds, due to the control unit having detec-
ted further deceleration.
Criteria for triggering belt tensioners and
airbags
In the first stage of a collision, the airbag con-
trol unit evaluates the duration and direction
of vehicle acceleration or deceleration in
order to determine whether it is necessary to
trigger the belt tensioner and/or airbag.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration of the vehicle. This proc-
ess is pre-emptive in nature as the airbag
must be deployed during – and not at the end
of – the collision.
i Airbags are not deployed in all types of
accidents. They are controlled by complex
sensor technology and evaluation logic.
This process is pre-emptive in nature as
airbag deployment must take place during
the impact and must be adapted to provide Occupant safety
35Safety
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