
Brakes
ABS .................................................. 56
Adaptive Brake Assist ......................59
Applying the parking brake ............152
BAS .................................................. 57
Brake fluid (notes) .........................328
Checking brake fluid leve l.............. 256
Display messages ..........................207
EBD .................................................. 57
Important safety notes ..................156
Maintenance .................................. 221
Parking brake (notes) ..................... 157
Riding tips ...................................... 156
Brake system
Malfunction ................................... .207
Warning lamp ................................. 221
Breakdown
Fire extinguisher ............................ 278
First-aid kit .................................... 277
Jump-starting ................................. 278
Reflective safety jacket .................. 277
Vehicle tool kit ............................... 276
Warning lamp ................................. 277
Warning triangle ............................ 277
see Flat tire
see Towing away
see Tow-starting
Bulb
see Changing a bulb
Bulb failure indicator ..........................92C
Care Car wash ........................................ 267
Display ........................................... 272
Exterior lights ................................ 270
Notes ............................................. 267
Paint .............................................. 269
Plastic trim .................................... 272
Power washer ................................ 268
Rear view camera .......................... 271
Roof lining ...................................... 273
Seat belt ........................................ 273
Seat cover ..................................... 272
Selector lever ................................ 272
Sensors ......................................... 270
Sliding door ................................... 271Steering wheel
............................... 272
Step (electrical) ............................. 271
Trim pieces .................................... 272
Washing by hand ........................... 268
Washing the engine .......................269
Wheels ........................................... 269
Windows ........................................ 269
Wiper blades .................................. 270
Cargo compartment
Activating/deactivating ventila-
tion ................................................ 133
Cargo compartment floor ...................28
Cargo tie-down points and tie
downs
Important safety notes ..................244
Cargo tie-down rings
Installing ........................................ 246
Permissible tensile loa d................. 331
Car wash (care) ................................. 267
CD player/CD changer ......................190
Cell phone see Mobile phone
Center console overview ....................37
Central locking Automatic locking ............................ 71
Important safety notes ....................71
Locking/unlocking (buttons) ...........71
Locking/unlocking (SmartKey) ........66
Locking/unlocking manually ............ 71
Central locking system
see Central locking
Changing bulbs
Additional indicators (roof) ............105
Backup lamp (Chassis Cab) ...........104
Backup lamps ................................ 103
Bi-Xenon bulbs ............................... 100
Brake lamps ................................... 103
Brake lamps (Chassis Cab) ............104
Cornering lamps ............................ 102
Courtesy lights ............................... 105
Daytime running lamps (halogen
headlamps) .................................... 102
Display message ............................ 210
Front interior light ..........................106
High-beam headlamps ...................101
Interior light ................................... 106
Interior lighting .............................. 106
License plate lamp .........................1046
Index 

Fog lamps
Switching on/off .............................. 94
Folding seat ......................................... 85
Folding table ...................................... 236
In the twin co-driver's sea t............ 236
Frequencies
Mobile phone ................................. 318
Two-way radio ................................ 318
Front fog lamps
Switching on/off .............................. 94
Front interior light
Replacing bulbs ............................. 106
Front windshield
see Windshield
Fuel
Additives (diesel )........................... 323
Consumption information ..............323
Consumption statistics ..................197
Diesel at very low outside temper-
atures ............................................ 323
Display message ............................ 215
Driving tips .................................... 154
Fuel gauge ..................................... 183
Important safety notes ..................321
Problem (malfunction) ...................149
Quality (diesel )............................... 322
Refueling ........................................ 148
Showing the range (on-board
computer with steering wheel but-
tons) .............................................. 197
Showing the range (vehicles with
steering wheel buttons) .................197
Tank content/reserve fuel .............322
Fuel filter with water separator
draining ......................................... 257
Indicator lamp ................................ 229
Fuel gauge ......................................... 183
Fuel tank Problem (malfunction) ...................149
Fuel tank content
Reserve, display message ..............215
Fuses .................................................. 283 G
Gasoline Reserve fuel warning lamp .............227
General driving tips
Driving short distances ..................155
Genuine parts .................................... 318
Glove box ........................................... 232
GTW (Gross Trailer Weight) (defini-
tion) .................................................... 305
Guarantee ............................................ 23 H
Hazard warning lamps ........................96
Headlamps Adding fluid to cleaning system .....257
Cleaning system (function) ..............96
Fogging up ....................................... 98
see Automatic headlamp mode
Headliner (cleaning instructions) ....273
Head restraints Adjusting ......................................... 86
Adjusting (rear) ................................ 86
Heating
see Climate control
Highbeam Assist
Function/notes ................................ 97
Switching Highbeam Assist on/
off .................................................. 194
High-beam headlamps
Highbeam Assist .............................. 97
Replacing bulbs ............................. 101
Switching on/off .............................. 95
Hood
Closing .......................................... .251
Display message ............................ 220
Indicator lamp ................................ 230
Opening ......................................... 250
Hydroplaning ..................................... 157 I
Immobilizer .......................................... 62
Indicator lamp see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator ......28 Index
11 

Installing/removing the ball cou-
pling
.................................................... 175
Instrument cluster Fuel gage ....................................... 183
Important safety notes ..................182
Instrument cluster lighting .............183
Outside temperature displa y.......... 183
Overview .......................................... 34
Speedometer ................................. 183
Tachometer ................................... 183
Warning and indicator lamps ...........35
Instrument cluster lighting ..............183
Instrument lighting see Instrument cluster lighting
Interior lighting ................................... 98
Front ................................................ 98
Motion detectors ........................... 100
Notes on replacing bulbs ...............106
Replacing bulbs ............................. 106
Switching the rear compartment
lighting on centrally .........................99
Interior motion sensor
Arming ............................................. 63
Deactivating .................................... .64
Function ........................................... 63
Switching off .................................... 64J
Jack Jacking points ................................ 309
Preparation .................................... 309
Storage location ............................ 276
Using ............................................. 309
Jump-starting ..................................... 278K
Key Position in the ignition lock ............ 137
see SmartKey
Kickdown ........................................... 146 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating .................167
Function/notes ............................. 166
Language
Display (vehicles with steering
wheel buttons) ............................... 192
Lashing points and tie downs
Permissible tensile loa d................. 331
LATCH-type (ISOFIX) child seat
anchors ................................................ 52
License plate lamp Replacing bulbs ............................. 104
License plate lamp (Chassis Cab)
Replacing bulbs ............................. 104
Lighting
Light switch ..................................... 93
see Lights
Lights
Activating/deactivating daytime
running lamps (on-board com-
puter with steering wheel but-
tons) .............................................. 194
Activating/deactivating daytime
running lamps (vehicles with
steering wheel buttons) ...................93
Activating/deactivating surround
lighting (vehicles with steering
wheel buttons) ............................... 195
Active light function .........................97
Automatic headlamp mode ..............94
Bulb failure indicator ........................92
Cornering light function ...................96
Driving abroad ............................... 155
Fog lamps ........................................ 94
Hazard warning lamps .....................96
Headlamp range .............................. 95
Highbeam Assist .............................. 97
High beam flasher ............................ 95
High-beam headlamps .....................95
Low-beam headlamps ......................93
Parking lamps .................................. 93
Rear fog lamp .................................. 9412
Index 

Cockpit
Function Page
0043
Door control panel 39
0044
Light switch 93
Headlamp range adjust-
ment 95
0087
Combination switch
• turn signals 95
• high-beam headlamps 95
• windshield wipers 107
• rear window wiper 108
0085
Cruise control lever 161
0083
Steering wheel without/
with buttons
37
0084
Instrument cluster 34
006B
Stowage compartment
• 3.5 mm audio jack 240
• USB port 240
006C
Timer for the auxiliary
warm-air heater (auxiliary
heating)
127 Function Page
006D
• Stowage compartment
with interior light
98
• Overhead control panel 38
006E
Rear-view mirror 89
006F
PARKTRONIC warning dis-
play
168
0070
Opens/closes the right-
hand side window
78
0071
Stowage compartment
(jack and vehicle tool kit)
276
0072
Glove box 232
0073
Center console 37
0074
• Selector lever (automatic
transmission)
144
0075
Ignition lock 137
0076
Further control panels 39
0077
Steering wheel buttons 37
0078
Applies/releases the park-
ing brake
15732
CockpitAt a glance 

Function Page
00B1
Fluid level too low in wind-
shield washer/headlamp
cleaning system
229
00E2
DEF supply low or contami-
nated/thinned
184
Exhaust gas aftertreatment
malfunction 224
00C7
Distance warning malfunc-
tioning
59
00B0
Lane Keeping Assist mal-
functioning
167
003E
Door or hood open 230
Electrically operated step
malfunction 230
0026
Brake pads/linings worn 225
0057
High-beam headlamps on 95
004D
Right-hand turn signal 95
003D
ASR malfunction 60
BAS malfunction 221
0089
ESP
®
malfunction 221
009F
Dirt accumulation in air fil-
ter
228 Function Page
00B4
Reserve fuel 183
Fuel filler cap open 227
00B8
Water in the fuel 229
003D
Battery charging malfunc-
tion
225
0049
Bulb defective 230
0087
Tachometer with warn-
ing and indicator lamps 0066
Parking brake applied 157
0058
Low-beam headlamps on 93
004E
Working speed governor
(ADR) on
172
0057
High-beam headlamps on 95
0077
Reserve fuel 227
Fuel filler cap open 227
0089
ESP
®
malfunction 221
0076
Fasten seat belts 230
i
Corresponding messages may also be
shown in the display (Y page 199).36
Instrument clusterAt a glance 

Useful information
This Operator's Manual describes all models
as well as standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific variations
are possible. Note that your vehicle may not
be equipped with all of the described func-
tions. This also applies to systems and func-
tions relevant to safety.
Read the information on qualified specialist
workshops (Y page 26). Exterior lighting
Important safety notes
G
DANGER
Xenon bulbs carry a high voltage. You can get
an electric shock if you remove the cover of
the Xenon bulb and touch the electrical con-
tacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the Xenon bulb. Always have work on
the Xenon bulbs carried out at a qualified spe-
cialist workshop. G
WARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
! Make sure the bulbs are always securely
installed.
If your vehicle is equipped with Bi-Xenon
bulbs, you can recognize this by the following:
the cone of light from the Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the low-beam headlamps must be
switched on before starting the engine.
The bulbs and lamps are an essential compo-
nent of vehicle safety. You must therefore make sure that these function correctly at all
times. Have the headlamp setting checked
regularly.
R
Always switch off the vehicle's lighting sys-
tem before changing a bulb.
This will prevent a short circuit.
R Do not touch the glass tube of new bulbs
with your bare hands. Always use a clean,
lint-free cloth or only touch the base of the
bulb when installing.
Even minor contamination can burn into
the glass surface and reduce the service life
of the bulbs.
R Do not use a bulb that has been dropped or
that has scratches on its glass tube.
The bulb could may explode.
R Only use bulbs in closed lamps which have
been designed for this purpose.
R Only use spare bulbs of the same type and
with the prescribed voltage
R Protect the bulbs from moisture when in
use.
If the new bulb still does not light up, consult
a qualified specialist workshop.
R Have the LEDs and bulbs of the following
lamps changed at a qualified specialist
workshop:
-the additional turn signals in the exterior
mirrors
- the high-mounted brake lamp
- LED daytime running lamps
- the Bi-Xenon bulbs
- front fog lamps
If you require assistance changing bulbs, con-
sult a qualified specialist workshop. Lamp failure indicator
The bulb failure indicator is only an aid. You
are responsible for the proper functioning of
the vehicle lighting. Insufficient or non-func-
tioning vehicle lighting puts the operating
safety of the vehicle at risk. 92
Exterior lightingLights and windshield wipers 

For this reason, check the condition and func-
tion of your vehicle's lighting system and, if
necessary, that of the trailer before each jour-
ney.
The bulb failure indicator monitors all of the
exterior lighting lamps, except the perimeter
lamp and the trailer lighting. If a bulb fails,
either the 0049(Ypage 35) indicator lamp
lights up, or you will see a corresponding
message in the display (Y page 210).
i Depending on the equipment, the bulb
failure indicator can fail for all lamps with
the exception of the turn signal lamps. Light switch
Operation 00470058
Automatic headlamp mode
0048003F Lights off/daytime running lamp
mode
00490060 Parking lamps, license plate and
instrument lighting
004A0058 Low-beam/high-beam headlamps
004B005A Fog lamps
004C005E Rear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to 003For0058.
Or
X If the rear fog lamp is switched on: press
the light switch in to the stop. The turn signals, high-beam headlamps and
the high-beam flasher are operated using the
combination switch (Y
page 95).
Low-beam headlamps X
To switch on: turn the key to position 2in
the ignition lock or start the engine.
X Turn the light switch to position 0058.
The 0058 indicator lamp in the instrument
cluster lights up.
X To switch off: turn the light switch to
003F.
Daytime running lamps You can activate/deactivate the daytime run-
ning lamps function using the on-board com-
puter.
This is not possible in countries where day-
time running lamps are a legal requirement.
The daytime running lamps function must be
activated using the on-board computer:
R
vehicles with steering wheel buttons
(Y page 194)
R vehicles without steering wheel buttons
(Y page 185)
X To switch on: turn the light switch to the
003F position.
The low-beam headlamps, parking lamps
and license plate lamp are switched on
when the engine is running. The 0058indi-
cator lamp in the instrument cluster lights
up.
i USA only:
If you turn the light switch to the 0060or
0058 position, the parking lamps or low-
beam headlamps switch on. If you turn the
light switch to the 0058position, the day-
time running lamps remain switched on.
i Canada only:
If you turn the light switch to the 0058posi-
tion, the low-beam headlamps are switched
on. If you turn the light switch to the 0060 Exterior lighting
93Lights and windshield wipers Z 

Combination switch
Turn signal lamps 0043
To indicate a right turn
0044 To indicate a left turn
X To indicate: press the combination switch
in desired direction 0043or0044 until it
engages.
The combination switch automatically
returns to its original position after large
steering movements.
X To indicate briefly: press the combination
switch briefly in desired direction 0043
or 0044.
The corresponding turn signal flashes three
times.
High-beam headlamps and high-beam
flasher 0043
High-beam headlamps
0044 High-beam flasher X
To switch on the high-beam head-
lamps: switch on the low-beam headlamps
(Y page 93).
X Press combination switch 0043forwards.
The 0057 indicator lamp in the instrument
cluster lights up.
i In the 0058position, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position.
The 0057 indicator lamp in the instrument
cluster goes out.
X To switch on the high-beam flasher: turn
the SmartKey to position 1or 2in the igni-
tion lock.
X Pull the combination switch briefly in direc-
tion of arrow 0044. Headlamp range adjustment
The headlamp range control is used to adapt
the downward angle of the headlamp beams
in accordance with the load on your vehicle.
The cone of light from the headlamps changes
if seats are occupied or if the cargo compart-
ment is being loaded or unloaded. This can
impair visibility and cause glare to oncoming
traffic.
You can only adjust the headlamp range while
the engine is running. Exterior lighting
95Lights and windshield wipers Z