
Reactivate the TCS and START-STOP when the desired speed has been
reached.WARNINGRapid acceleration, particularly on slippery roads, can lead to loss of control
of the vehicle – risk of accident!
Retraction and economical driving
Introduction
This chapter contains information on the following subjects:
Driving in
136
Tips for economical driving
136
The fuel consumption, degree of pollution and vehicle wear depend on driving
style, road condition, weather conditions and the like.
Driving in
Driving in the engine
The engine has to be run in during the first 1500 kilometres. During this period,
the driving style decides on the quality of the driving-in process.
During the first 1 000 km we recommend not driving faster than 3/4 of the
maximum permissible engine speed, not to drive at full throttle and to dis-
pense with the trailer.
In the area of 1,000 to 1,500 kilometres the engine load can be increased up
to the maximum permitted engine speed.
New tyres
New tyres have to be “run in” since they do not offer optimal grip at first.
Drive especially carefully for the first 500 km or so.
New brake pads
New brake pads have to first “grind in” because these do not initially have the
best possible braking effect.
Drive especially carefully for the first 200 km or so.
Tips for economical driving
To achieve the lowest possible fuel consumption, the following instructions
must be observed.
Looking ahead when driving
Avoid unnecessary acceleration and braking.
Switch in an energy saving and timely manner Observe the recommended gear » page 46.
Avoid full throttle and high speeds
Fuel consumption will be halved if only three-quarters of the possible top
speed of your vehicle is used.
Reducing idling
When the engine is switched off, such as when waiting in a traffic jam, the fuel
economy is already greater after 30 - 40 s than the fuel quantity which is re-
quired for engine re-start.
Avoid short distances
When driving a short distance of less than about 4 km, the engine cannot
reach its operating temperature. As long as the engine has not reached oper-
ating temperature, the fuel consumption is significantly higher than with the
engine hot.
Pay attention to the correct tyre inflation pressure being maintained
Further information » page 204.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 1 l/100 km. At a speed of
100-120 km/h, a vehicle fitted with a roof rack cross member without a load
will use about 10 % more fuel than normal due to the increased aerodynamic
drag.
Saving electricity
Electrical consumers (e.g. seat heating, air conditioning and the like) only turn
on for as long as necessary.
In Infotainment, the display is shown of up to three consumers which are cur-
rently showing the highest degree of fuel consumption » Infotainment operat-
ing instructions , chapter Vehicle settings (CAR button) .136Driving

Driving through water and driving off of made-up roads
Introduction
This chapter contains information on the following subjects:
Driving through water
137
Driving off paved roads
137WARNINGImmediately after driving through water, mud, slush and the like, braking
effectiveness will be temporarily impaired » page 130, Information on brak-
ing . For this reason, sudden and violent braking manoeuvres are to be
avoided - there is a risk of accident!
Driving through water
Fig. 136
Maximum permissible water lev-
el when driving through water
Read and observe on page 137 first.
The following must be observed to avoid damage to the vehicle when driving through bodies of water (e.g. flooded roads).
›
Therefore determine the depth of the water before driving through bodies of
water.
The water level must not reach above the web of the lower beam » Fig. 136.
›
Do not drive any faster than at a walking speed.
At a higher speed, a water wave can form in front of the vehicle which can
cause water to penetrate into the air induction system of the engine or into
other parts of the vehicle.
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION■ If water penetrates into the intake system of the engine, there is a risk of se-
rious damage to the engine parts!■
When driving through water, some vehicle parts such as the chassis, the
electrics or the transmission can be severely damaged.
■
Oncoming vehicles can generate water waves which can exceed the permis-
sible water level for your vehicle.
■
Potholes, mud or rocks can be hidden under the water, making it difficult or
impossible to drive through the body of water.
■
Do not drive through salt water, as the salt can cause corrosion. An vehicle
coming into contact with salt water is to be thoroughly rinsed with fresh wa-
ter.
Driving off paved roads
Read and observe
on page 137 first.
Only drive on such roads and in such terrain, which match the vehicle parame-ters » page 238 , Technical data as well as your driving skills.
The driver is always responsible for deciding whether the vehicle can handle
travelling in the given terrain.
WARNINGDrive particularly aware and pro-actively outside paved roads.■Always adjust your driving to the current terrain and weather conditions.
Excessive speed or incorrect driving manoeuvres can cause damage to the
vehicle and lead to serious injuries.■
Objects trapped under the floor of the vehicle can damage the fuel lines,
the brake system, the seals and other parts of the chassis. Check the un-
derside of the vehicle and remove the trapped objects.
■
Combustible objects such as dry leaves or twigs caught under the base of
the vehicle could ignite on hot vehicle parts - risk of fire!
CAUTION
■ Pay attention to the ground clearance of the vehicle! When driving over ob-
jects which are larger than the ground clearance, the chassis and its compo-
nents can get damaged.■
Drive slowly in unknown terrain and watch out for unexpected obstacles,
such as potholes, rocks, stumps, etc.
■
Check up on confusing sections of unpaved roads before travelling on them
and consider whether such travelling is possible without risk.
137Starting-off and Driving

WARNING■The system only serves to support and does not relieve the driver of the
responsibility for the vehicle operation.■
Moving persons or objects may not be recognized by the system sensors.
■
Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the system signals. For this reason, such people or
objects may not be recognised by the system sensors.
■
External noise sources may affect the signals of the system sensors. Un-
der adverse conditions, this may cause objects or people not to be recog-
nised by the system.
■
You should satisfy yourself before reversing that there is no small obsta-
cle, such as a rock, thin post, trailer drawbar etc., in front or behind your ve-
hicle. Such obstacles may not be recognised by the system sensors.
CAUTION
■ Keep the system sensors » Fig. 139 on page 141 clean, and free from snow
and ice, and do not cover with any objects of any kind, otherwise the system
functioning may be limited.■
Under adverse weather conditions (heavy rain, water vapour, very low or
high temperatures etc.), the system functioning may be limited - “incorrect ob-
stacle detection”.
■
Additionally installed accessories such as bicycle carriers can impair the sys-
tem functioning.
Function
Fig. 138
Sampled areas and range of the sensors / system button (Ver-
sion 2, 3)
Fig. 139
Fitting the ultrasonic sensors: front/rear
Read and observe
and on page 141 first.
Depending on the equipment, the following system versions can ex-
ist » Fig. 138 .
› Version 1: warns of obstacles in the areas
C
,
D
.
› Version 2: warns of obstacles in the areas
A
,
B
,
C
,
D
.
› Version 3: warns of obstacles in the areas
A
,
B
,
C
,
D
,
E
.
Approximate range of sensors (in cm)
Area » Fig. 138Version 1
(4 sensors)Version 2
(8 sensors)Version 3
(12 sensors)A-120120B-6090C160160160D606090E--90
Acoustic signals and display
The interval between the acoustic signals becomes shorter as the clearance is
reduced. A continuous tone sounds from a distance of approx. 30 cm - danger
area. From this moment on do not continue driving!
For information on setting the acoustic signals and a description of the Info-
tainment display, see » Infotainment manual , chapter Vehicle settings (button
CAR) .
141Assist systems

Automatic system activation when moving forwardFig. 141
Infotainment display: Display
with automatic activation
Read and observe and on page 141 first.
Automatic activation takes place at a speed below around 10 km/h under the following conditions.
› The distance to the obstacle at the front is less than around 90 cm.
› The distance to the obstacle at the front is less than around 30 cm.
› The distance to the obstacle to the side of the vehicle is less than around
30 cm.
After activation, the following is shown in the left pane of the Infotainment
display » Fig. 141 .
Acoustic signals are sounded as of a distance from the obstacle of around
50 cm.
Automatic display can be activated/deactivated in the Infotainment » Infotain-
ment manual , chapter Vehicle settings (CAR button) .
Optical Parking Assistant (rear view camera)
Introduction
This chapter contains information on the following subjects:
Operation
143
Orientation lines and function keys
144
Optical Parking assistant (hereinafter only as a system) displays in Infotain-
ment the area to the rear of the vehicle monitored by the camera » Fig. 142 on
page 143 .
WARNING■
The system only serves to support and does not relieve the driver of the
responsibility for the vehicle operation.■
Make sure that the camera lens is not dirty or covered, otherwise the sys-
tem function can be significantly impaired. Information on clean-
ing » page 184 , Camera lens
CAUTION
■
The camera lens distorts and enlarges the field of view of the difference in
eye sight. The display is therefore only of limited use for estimating distances
to following vehicles.■
Some items, such as thin columns, chain link fences or lattice may not be
represented adequately in terms of display resolution.
■
It is only a two-dimensional display. Therefore, protruding objects or roadway
depressions, for example, may not be recognised due to lack of space depth.
■
In a crash or damage the vehicle's rear camera can possibly deviate from the
correct position. If this is the case, have the sensor checked by a specialist ga-
rage.
Operation
Fig. 142
Position of the camera / Monitored area
Read and observe
and on page 143 first.
Monitored area » Fig. 142
Detection range of the camera.
Area outside the detection range of the camera.
AB143Assist systems

This is only possible within the range which is permitted by the power output
and braking power of the engine.WARNINGIf the engine power or engine braking effect is insufficient to maintain the
set speed, the driver must take control of vehicle operation.
Operating Description
Fig. 147
Cruise control system controls
Read and observe on page 148 first.
Overview of the CCS controls » Fig. 147ADeactivate CCS (delete set speed) Stop control (sprung position) Activate ACC (control deactivated)BTake control again a)
/ Increase speedCLaunch control / reduce speeda)
If no speed is set, the current speed is used.
At the start of the control process, the CCS regulates the vehicle to the current
speed, and this speed is shown on the instrument cluster display. The warning
light illuminates in the instrument cluster.
Automatic control interruption
Automatic control interruption occurs if any of the following conditions are
met.
› The brake pedal is operated.
› When one of the brake assist systems (e.g. ESC) intervenes.
› Through an airbag deployment.
WARNING■
Always deactivate the cruise control system after use to prevent uninten-
tional switching on of the system.■
Control may only be resumed if the set speed is not too high for the cur-
rent traffic conditions.
Note
During control, speed can be increased by pressing the accelerator pedal. Re-
leasing the accelerator pedal will cause the speed to drop again to the set
speed.
Adaptive Cruise Control (ACC)
Introduction
This chapter contains information on the following subjects:
Radar sensor
150
Operation
151
Automatic stop-start
152
Operation Overview
152
Start control
152
Stop/resume control
153
Set/change the desired speed
153
Set time interval level
153
Special driving conditions
154
Information messages
155
Adaptive cruise control (from here on referred to only as ACC) can maintain the
set speed or the proximity to the vehicle ahead consistently, without the need
to operate the gas or brake pedals.
The state in which the ACC maintains the speed or the proximity is described
as control from here on.
149Assist systems

WARNING■The system only serves to support and does not relieve the driver of the
responsibility for the vehicle operation.■
The driver must always be ready to take over steering of the vehicle him-
self (accelerate or brake).
■
Always adapt your speed and safety proximity to the vehicle ahead to the
current visibility, weather, road and traffic conditions.
WARNING■ 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).
■
When driving around “sharp” bends.
■
When riding on a steep gradient / high slope.
CAUTION
The control may automatically switch off when some brake assist systems (e.g.
ESC) intervene, when the maximum permissible engine speed is exceeded, etc.
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 elec-
trically connected trailer, the ACC becomes unavailable.
Radar sensorFig. 148
Mounting location of the radar
sensor
Read and observe and on page 150 first.
The radar sensor » Fig. 148 (From here on referred to as sensor) is used to as-
sess the traffic situation in front of the vehicle.
The sensor can distinguish objects by radiating and receiving electromagnetic waves.
The sensor function may be impaired in the events of one of the following.
› The sensor is covered by mud, snow or debris, for example.
› The sensor or its immediate surroundings are covered by other objects, for
example, a sticker is attached.
› When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is dirty or does not have “visibility” for any other reason, the fol- lowing message appears in the instrument cluster display » page 155.
WARNING■
If you suspect that the sensor is damaged, deactivate the ACC. Have the
sensor checked by a specialist garage.■
The sensor can become misaligned by collisions or by damage to the front
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to an impairment of the ACC function - risk of accidents! Have the sensor
checked by a specialist garage.
■
The area in front of and around the sensor must not be covered with
stickers, additional lights or similar items. This can lead to impaired function
of the sensor - risk of accidents!
150Driving

The sensor function may be impaired in the events of one of the following.
› The sensor is soiled by mud, snow etc.
› The area in front and around the sensor is obscured by labels, auxiliary lights
or similar items.
› Visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is dirty or covered, the corresponding message appears on the
display of the instrument cluster » page 157, Information messages .WARNING■
If you suspect that the sensor is damaged, deactivate the system. Have
the sensor checked by a specialist garage.■
The sensor can become misaligned by collisions or by damage to the front
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to impaired function of the sensor - risk of accidents! Have the sensor
checked by a specialist garage.
■
The area in front and around the sensor should not be obscured by labels,
auxiliary lights or similar items. 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.
Operation
Fig. 155
Instrument cluster display: Note
(dangerous distance)advance /
warning or emergency braking at
low speed
Read and observe and on page 155 first.
The system support is provided in the following manner.
› Alerts you about a dangerous proximity to the vehicle ahead.
› Warns you of an impending collision.
› Prepares the brakes for emergency braking prior to a detected danger.
›Assists with a brake action triggered by the driver.
› If the driver fails to respond to a detected danger, automatic braking is per-
formed.
The system can work only if the following basic conditions are met. The system is activated.
TCS is enabled » page 138, Braking and stabilisation systems .
The vehicle is traveling forwards at a speed of more than approx. 5 km/h.
Note
The system can be impaired or may not be available, for example when driving
in “sharp ”curves or with an ESC engagement » page 138.
proximity warning (dangerous proximity)
Read and observe
and on page 155 first.
If a safe distance to the vehicle ahead is not maintained, the display of the in-strument cluster shows the symbol
» Fig. 155 on page 156 -
.
Immediately increase the proximity if the current traffic situation allows you
to do so!
The proximity at which the warning is displayed depends on the current speed.
The warning may occur when driving between about 60 km/h and 210 km/h.
Warning and automatic braking
Read and observe
and on page 155 first.
Emergency braking at low speed
In a driving speed range of approx. 5 km/h to approx. 30 km/h, the automatic
braking action is not preceded by a warning. In the event of an immediate risk
of impact, automatic braking is carried out with the breaking force increasing
in stages.
The symbol
» Fig. 155 on page 156 -
appears in the display during auto-
matic braking
Advance warning
If the system detects a risk of collision, the symbol
» Fig. 155 on page 156 -
appears in the display and you will hear an acoustic signal.
At the same time, the braking system is prepared for possible emergency brak-
ing.
156Driving

START-STOP
Introduction
This chapter contains information on the following subjects:
Operating conditions of the system
158
Operation in vehicles with manual gearbox
158
Operation in vehicles with automatic gearbox
159
System related automatic start-up
159
Manually deactivating/activating the system
159
Information messages
160
The START-STOP system (hereinafter referred to as the system) saves fuel and
reduces polluting emissions and CO 2 emissions by turning the engine off, e.g.
when stopping at traffic lights, and starting the engine again when moving off.
WARNING■ Never let the vehicle roll with the engine switched off.■The brake servo unit and power steering only operate if the engine is run-
ning.
Operating conditions of the system
Fig. 156
Engine is automatically switched
off / automatic engine cut off is
not possible
Read and observe on page 158 first.
For system-dependent automatic engine shutdown
to work, the following conditions must be met.
The driver's door is closed.
The driver has fastened the seat belt.
The bonnet is closed.
The driving speed was higher than 4 km.h after the last stop.
No trailer is coupled.
Some additional conditions for the system to function correctly cannot be in-
fluenced or recognised by the driver. Therefore, the system can react differ-
ently in situations which are identical from the driver's perspective.
If, after stopping the vehicle, the check icon
» Fig. 156 appears on the dis-
play, then the conditions for automatic engine shutdown are not met.
Running the engine is essential for the following reasons, for example.
› The engine temperature for the proper function of the system has not yet
been reached.
› The charge state of the vehicle battery is too low.
› The current consumption is too high.
› High air-conditioning or heating capacity (high fan speed, big difference be-
tween the desired and actual interior temperature).
Information about the current status of the system can be displayed in the In-
fotainment display » operating instructions for Infotainment , chapter Vehicle
settings (CAR button) .
Note
■
If the vehicle remains outdoors for a long time in minus temperatures or in
direct sunlight, it can take several hours until the internal temperature of the
vehicle battery reaches a suitable temperature for proper operation of the
START STOP system.■
If the driver's seat belt is removed for more than approx. 30 seconds or the
driver's door is opened during stop mode, the engine will have to be started
manually.
■
After the manual engine start and with a manual gearbox the automatic en-
gine shutdown can take place only when a minimum distance required for the
system function has been covered.
Operation in vehicles with manual gearbox
Read and observe
on page 158 first.
In compliance with the operating conditions, automatic engine shutdown / au-
tomatic engine start takes place as described.
Automatic engine shutdown
›
Stop the vehicle.
›
Put the gear stick into Neutral.
158Driving