
The sensor is a component of the ACC » page 214 and Front Assist
» page 219 systems.
The sensor function may be impaired in the events of one of the following. ▶ The sensor cover is soiled (e.g. with mud, snow etc.).
▶ The area in front of and around the sensor cover is obscured (e.g. by labels,
auxiliary headlights etc.).
▶ When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is covered or dirty, the corresponding message appears in the in-
strument cluster display for the ACC system » page 218, Malfunctions or Front
Assist system » page 221, Malfunctions .WARNING■
If you suspect that the sensor is damaged, deactivate the ACC system and
Front Assist system » page 216» page 220 . Have the sensor checked by a
specialist garage.■
A collision or damage in the front or lower area of the vehicle could affect
the sensor function - there is risk of accident! Have the sensor checked by
a specialist garage.
■
Do not cover the area in front of and around the sensor cover. This can
lead to impaired function of the sensor - risk of accidents!
CAUTION
Remove the snow with a brush and the ice with a solvent-free de-icer.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
200
ESC Sport
200
Anti-lock braking system (ABS)
201
Engine drag torque control (MSR)
201
Traction control (TCS)
201
Electronic Differential Lock (EDL and XDS)
201
Active steering assist (DSR)
202
Brake Assist (HBA)
202
Hill Start Assist (HHC)
202Multicollision brake (MCB)202Trailer stabilisation system (TSA)202
The brake and stabilization systems are automatically activated each time the
ignition is switched on, unless otherwise indicated.
The error display is in Chapter » page 32, Warning lights .
WARNINGThe general information relating to the use of assistance systems must be
observed » page 199, in section Introduction .
Stability Control (ESC)
Read and observe
on page 200 first.
ESC improves vehicle stability in critical driving situations (e.g. if the vehicle
starts to skid) by the braking the individual wheels to maintain the direction.
If there is a TCS intervention, the indicator light flashes in the instrument
cluster.
ESC Sport
Read and observe
on page 200 first.
ESC Sport allows for a sportier driving style. With ESC Sport activated, no ESC
intervention takes place when the vehicle slightly oversteers and understeers,
and ASR is so limited that the drive wheels can be spun.
Activation
›
Press and hold down the
» Fig. 241 on page 201 button.
›
or: On Infotainment, press the button
→ Press the function area
→
ESC system:
→
ESC Sport
.
With activation the warning light
lights up in the instrument cluster and an
appropriate message is displayed in the instrument cluster.
Deactivation
›
Press the
» Fig. 241 on page 201 button.
›
or: On Infotainment, press the button
→ Press the function area
→
ESC system:
→
Activated
.
With deactivation the warning light extinguishes in the instrument cluster
and an appropriate message is displayed in the instrument cluster.
200Driving

Adaptive Cruise Control (ACC)
Introduction
This chapter contains information on the following subjects:
Settings in Infotainment
214
Operation
215
Automatic stopping and starting
215
Operation overview
216
Start control
216
Stop/resume control
216
Set/change desired speed
217
Set the clearance level
217
Special driving conditions
217
Overtaking and towing
218
Malfunctions
218
The automatic distance control (hereinafter referred to as ACC) maintains the
set speed or the distance to the vehicle ahead without the accelerator or
brake pedal being pressed.
The front of the vehicle and the distance to the vehicle ahead is monitored by
a radar sensor » page 199.
The state in which the ACC maintains the speed or the proximity is described
as control from here on.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 199, in section Introduction .■
The driver must always be ready to take over the operation of the accel-
erator and brake pedal.
■
The ACC does not react when approaching a stationary obstacle, such as
traffic jams, vehicle breakdowns or vehicles waiting at a traffic light.
■
The ACC does not respond to crossing or oncoming objects.
■
If the ACC does not decelerate fast enough, immediately apply the vehi-
cle's foot brake.
WARNINGFor safety reasons, do not use the ACC under the following conditions.■When driving in turning lanes, motorway exits or construction sites, to
avoid an unwanted acceleration to the stored speed.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When road conditions are poor (e.g. ice, slippery road, gravel, dirt road).
■
Driving into “sharp” corners or in steep gradients / on steep inclines.
■
When driving through places where metal objects (such as metal build-
ings, railroad tracks, etc.) can be found.
■
When driving through very divided and enclosed spaces (such as large-ca-
pacity garages, car ferries, tunnels and the like.).
Note
■ The ACC is designed primarily for use on motorways.■The ACC reduces the speed by automatically releasing the accelerator or by
means of a braking procedure as appropriate. If the brakes are used for an au-
tomatic speed reduction at any moments, then the brake light illuminates.■
In case of failure of more than one brake light on the vehicle or on the con-
nected trailer, the ACC becomes unavailable.
■
The control automatically cancels the engagement of the brake supportive
assistance systems (e.g. ESC) or when the maximum permitted engine speed is
exceeded.
Settings in Infotainment
Read and observe
on page 214 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ ACC (adaptive cruise control) - Setting for the adaptive cruise control
■
Driving progr.:
- Set the vehicle acceleration when adaptive cruise control is
activated 1)
■
Last distance selected
- Switch on/off of the last distance selected
■
Distance:
- Set the distance monitoring to the vehicles ahead
1)
This can be set as follows on vehicles with a travel mode option » page 221.
214Driving

WARNINGThe system may not be able to recognise the boundary line, or recognise it
incorrectly, for example, in the following situations.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
When driving in “sharp” bends.
■
The sensor is blinded by the sun or oncoming traffic.
■
The field of view of the sensor is limited by an obstacle or a preceding ve-
hicle.
CAUTION
Do not attach any stickers or similar objects in front of the sensor on the wind-
screen to avoid impairing the functions of the system.
Note
■ The system is designed for driving on motorways and roads with adequate
longitudinal markings.■
The system can detect both continuous and broken lines.
Settings in Infotainment
Read and observe
and on page 224 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ Lane Assist (lane departure warning sys.) - Settings for Lane Assist
■
Active
- Activate/deactivate the assistant
■
Adaptive lane guidance
- Activate/deactivate adaptive lane guidance
OperationFig. 265
Monochromatic display of the instrument cluster: Examples of
system indications
Fig. 266
Colour display of the instrument cluster: Examples of system in-
dications
Read and observe
and on page 224 first.
System displays » Fig. 265 and » Fig. 266
The system is activated, but not ready to intervene.
The system is active and ready to intervene.
The system intervenes when approaching the right-hand boundary lane.
Adaptive tracking takes place.
The system can intervene when the following basic conditions are present. The system is activated.
The vehicle is travelling at more than around 65 km/h.
The boundary line of at least one side of the lane is detected.
225Assist systems

WARNING■The general information relating to the use of assistance systems must
be observed » page 199, in section Introduction .■
Vertical traffic signs must always take precedence over the traffic signs
shown in the display. The driver is always responsible for correctly assess-
ing the traffic situation.
■
On the system side, only a traffic sign display is undertaken, neither a
warning when limit is exceeded or driving speed adjustment is undertaken!
■
Speed specifications in the displayed road signs refer to the customary
speed units. For example, the view
in the display can therefore refer to
km / h or mph, specific to the country.
WARNINGThe traffic signs may not be displayed or displayed incorrectly in the system
e.g. in the following situations.■
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
■
The sensor is blinded by the sun or oncoming traffic.
■
The field of view of the sensor is limited by an obstacle or a preceding ve-
hicle.
■
Travelling at high speed.
■
The traffic signs are covered (e.g. by trees, snow or dirt).
■
The traffic signs are not standard (round with a red border) or are dam-
aged.
■
The traffic signs are attached to flashing neon signs.
■
The traffic signs were changed (the navigation data are out of date).
Note
The system is only available in some countries.
Settings in Infotainment
Read and observe
on page 227 first.
›
Press the button, then tap on the function surface
→
Driver assistance
.
■ Dynamic Road Sign Display - Settings for the Dynamic Road Sign Display
■
Show in instrument cluster
- Activation/deactivation of the additional traffic
signs in the display of the instrument cluster
■
Speed warning::
» page 221 - Setting a warning when exceeding the speed
limit
■ Trailer recognition
■Show road signs relevant to trailers
- Activating / deactivating the display of road
signs relevant to trailers
■
Use for route calculation
- Activation / deactivation taking trailers in account for
route calculation in navigation
Operation
Fig. 267
Sensor for traffic sign recogni-
tion
Fig. 268
Display in the instrument cluster: Display examples
Read and observe
on page 227 first.
Description of indications and displayed traffic signs
Display » Fig. 268Display of detected traffic signs » page 44, Driving data (Multifunction
display)Additional display (monochromatic display)Additional display (colour display) 227Assist systems

No.Consumer19Windscreen wipers20Anti-theft alarm21Windscreen heater22Engine control system, voltage stabilizer for taxi vehicles23Starter24Electrical auxiliary heating system31Vacuum pump32Not assigned33Not assigned34All-wheel drive35Not assigned36Not assigned37Aux. heating38Not assigned
Bulbs
Introduction
This chapter contains information on the following subjects:
Bulb arrangement in the front headlights
283
Replacing the bulb for the side light (Halogen headlights)
283
Changing the bulb for main beam, separate daytime running lights, and
parking light
283
Replacing the bulb for the side light (Xenon headlights)
284
Change bulb for fog lights switch - Variant 1
284
Change bulb for fog lights switch - Variant 2
285
Changing the bulb for the licence plate light
285
Removing/installing tail light
286
Replacing the bulbs in the tail lamp assembly - Variant 1
286
Replacing the bulbs in the tail lamp assembly - Variant 2
287
We recommend having bulbs replaced by a specialist garage or seeking other
expert help in the event of any uncertainties.
▶ Switch off the ignition and all of the lights before replacing a bulb.
▶ Faulty bulbs must only be replaced with the same type of bulbs. The designa-
tion is located on the light socket or the glass bulb.
We recommend having the headlight settings checked by a specialist garage after replacing a bulb in the low, high or fog beam.
In the case of failure of a Xenon gas discharge bulb or an LED diode, visit a
specialist garage.WARNING■ Always read and observe the warnings before completing any work in the
engine compartment » page 252.■
Accidents can be caused if the road in front of the vehicle is not suffi-
ciently illuminated and the vehicle cannot or can only be seen with difficul-
ty by other road users.
■
Bulbs H7 H8 and H15 are pressurised and may burst when changing the
bulb - risk of injury! We therefore recommended wearing gloves and safety
glasses when changing a bulb.
■
Do not carry out any work on the Xenon gas discharge lamps - risk of
death!
CAUTION
Do not take hold of the glass bulb with naked fingers (even the smallest
amount of dirt reduces the working life of the light bulb). Use a clean cloth,
napkin, or similar.
Note
■ This Owner's Manual only describes the replacement of bulbs where it is pos-
sible to replace the bulbs on your own without any complications arising. Other
bulbs must be replaced by a specialist garage.■
We recommend that a box of replacement bulbs always be carried in the ve-
hicle.
282Do-it-yourself

Replacing the bulb for the side light (Xenon headlights)Fig. 333
Changing the light bulb for the parking light
Read and observe
and on page 282 first.
›
Turn the protective cap
B
» Fig. 330 on page 283 in direction of the arrow.
›
Remove the bulb holder with the bulb by jiggling it out in the direction of the
arrow
1
» Fig. 333 .
›
Grasp the pedestal with the light bulb in the area
A
.
›
Remove the faulty bulb from the holder in the direction of the arrow
2
.
›
Insert a new bulb in the bulb holder up to the stop.
›
Replace the bulb holder in the headlamp with the bulb.
›
Insert the protective cap
B
» Fig. 330 on page 283 and turn it in the direc-
tion opposite to the arrow.
Change bulb for fog lights switch - Variant 1Fig. 334
Remove the fog lamp / bulb change - variant 1
Read and observe
and on page 282 first.
Remove the protective grille and headlight
›
Insert the clamps for removing the full wheel trims into opening
A
» Fig. 334 .
›
By pulling the hook in direction of arrow
1
remove the protective grille in
the arrow direction
2
» Fig. 334 .
›
Unscrew the screws
B
with the screwdriver from the tool kit.
›
With the key
2
» page 266 , Vehicle tool kit unlock the locking
C
in direction
of arrow
3
.
›
Remove the headlight in the direction of arrow
4
.
Replacing the light bulb
›
Press the latch on the connector in the direction of arrow
5
.
›
Remove the key in the direction of the arrow
6
.
›
Turn the socket with the bulb to the stop in the direction of the arrow
7
.
›
Remove the socket with the bulb in the direction of arrow
8
.
›
Insert the new bulb into the headlight and turn counter to the direction of
arrow
7
as far as the stop.
284Do-it-yourself

›Fit the connector.
Refit the headlight and grille›
Replace the fog light by inserting it in the opposite direction of the arrow
4
» Fig. 334 and tighten.
›
Insert the guard and push it gently until it locks into place.
Change bulb for fog lights switch - Variant 2
Fig. 335
Remove the fog lamp / bulb change - variant 2
Read and observe
and on page 282 first.
Remove the cover and headlight
›
Insert the clamps for removing the full wheel trims into opening
A
» Fig. 335 .
›
Remove the cover by pulling the hook in the direction of arrow
1
.
›
Unscrew the screws
B
with the screwdriver from the tool kit.
›
Remove the headlight in the direction of arrow
2
.
›
Remove the headlight in the direction of arrow
3
.
Replacing the light bulb
›
Press the latch on the connector in the direction of arrow
4
.
›
Remove the key in the direction of the arrow
5
.
› Turn the socket with the bulb to the stop in the direction of the arrow 6.›Remove the socket with the bulb in the direction of arrow 7.›
Insert the new bulb into the headlight and turn counter to the direction of
arrow
6
as far as the stop.
›
Fit the connector.
Refit the headlight and cover
›
Replace the fog light by inserting it in the opposite direction of the arrow
3
» Fig. 335 and tighten.
›
Insert the guard and push it gently until it locks into place.
Changing the bulb for the licence plate light
Fig. 336
Remove the number plate light / replace the bulb
Read and observe
and on page 282 first.
›
Push in the light in the direction of arrow
1
» Fig. 336 until it is detached.
›
Swivel out the lamp in the direction of the arrow
2
and remove it.
›
Remove the faulty bulb from the holder in the direction of the arrow
3
.
›
Insert a new bulb into the holder.
›
Reinsert the lamp in the opposite direction to the arrow
1
.
›
Push on the light until the spring clicks into place.
285Fuses and light bulbs

ChecksStatutory checks240
Children and safety22
Child safety lock54
Child seat22
Classification24
Fitting25
Installation location24
in the passenger seat24
ISOFIX25
on the front passenger seat23, 24
TOP TETHER26
Cigarette lighter91
Clear calls126
Climatronic104
air distribution control107
Automatic operation107
Operate in Infotainment106
Operating elements105
Clothes hook88
CNG252
Gas gauge31
Gas leaks252
In an accident252
Refuel251
Regular checks252
Sticker252
Warning light37
cockpit29
Cockpit Lighting
69
Comfort flashing65
COMING HOME68
Compartments82
Compatible sources DVD video
146
Pictures145
Component protection241
Compressed natural gas see CNG
252
Computersee multifunction display44
Conditions for pairing152
Conference call160
Configuration wizard118
Convenience operation Tilting / sliding sunroof
62
Window61
Coolant256
Checking257
Refilling257
Temperature display31
Warning light38
CORNER See Fog lights with CORNER function
68
Correct routing of seat belt
16
Correct seated position12
Correct seating position14
Crew Protect Assist223
Cruise control212
Warning light37
Cruise Control System212
Cup holders85
Custom destination175
D
DAB
133
Additional information133
Radio Text and image presentation133
Set125, 132
DAB slideshow133
Data connection164
Data roaming124
Data transfer of external devices119
Date123, 130
DAY LIGHT See Daytime running lights
65
Daytime running lights65
DCC221
Warning light40
De-icing the windscreen and rear window71
Deactivation Airbag
21
Default settings187
Delayed locking of the boot lid See boot lid
57
Delete destination179
Demo mode129, 180
Departure angle295
destination Search for
171
Destination Custom destination
175
Enter destination using the address172
entered in map173
Favourite174, 179
final destinations173
Flagged destination174
Home address174
Image with GPS176
Memory179
Saved destination174
Telephone contact174
vCard174
Destination details179
Destination management Destination details
179
Favourite179
Storage179
Destination memory174
Detail of the traffic report186
Diesel250
Diesel fuel250
Diesel particle filter (DPF)39
Digital Clock42
Digital radio reception Set
132
303Index