Avoid full throttle and high speeds
Fuel consumption can be reduced by half if only three-quarters of the possible
top speed of your vehicle is used.
Reducing idling
If the vehicle is fitted with the START - STOP system there is an automatic re-
duction of the idling. If the engine is stopped on vehicles without START-STOP
system, such as when waiting in a traffic jam, the fuel economy is already
greater after 30 - 40 s than the fuel quantity which is required 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 155.
Avoid unnecessary ballast
Per 100 kg of weight, consumption increases by about 0.3 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
Only turn on electrical consumers (e.g. seat, window and mirror heating and
the like) for as long as necessary.
Use the cooling system economically
The air conditioning system compressor uses power from the engine when in
cooling mode, which will affect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which the
interior has been strongly heated through the effect of direct sunlight in order
to allow the heated air to escape.
The cooling system should not be on if the windows are open.DriveGreen functionFig. 120
Shown in the infotainment dis-
play
The DriveGreen function (hereinafter referred to as DriveGreen) evaluates the
driving efficiency based on the information with regard to driving style. Useful
tips for reducing fuel consumption are also offered.
DriveGreen can be displayed on the Infotainment as follows.
›
Press the button in the Infotainment and then in the display the function
keys one after the other ,
DriveGreen
.
A
driving liquid display
With the driving is liquid the display is near the green dot. When accelerating
or braking, the indicator moves down or up.
B
“Green leaf”
The leaf margin shown in green shows with a few seconds, the current drive
efficiency. When driving economically there are several green layers on the
edge of the leaf. When driving less economically, no green colour appears and
the leaf can disappear completely.
C
Graphical review summary
The evaluation of the driving economy during the last 3 minutes or 1.5 minutes
(depending on type of Infotainment) is shown like a beam in 5-second incre-
ments. The current status is shown on the left and moves gradually to the
right. The higher the green bars, the more economic the driving style is.
D
Scoring
In the function key, the evaluation of driving efficiency is shown from the start
in the range from 0 to 100 points. The higher the indicated value, the more
economic the driving style is.
When you press the function key, a detailed assessment showing the driving
efficiency during the last 30 minutes is shown.
107Starting-off and Driving
If the trip from the start, takes less than 30 minutes, then the assessment
takes in information from the previous trip (the bars are shown in dark green).E
Average fuel consumption
In the function key, the average fuel consumption from the start is displayed.
When you press the function key a detailed overview of the average fuel con-
sumption during the last 30 minutes is shown.
If the trip from the start, takes less than 30 minutes, then the average fuel
consumption takes in information from the previous trip (the bars are shown in
dark green).
F
Symbols in the display
The display may show the following four symbols, which give information on
the current driving style.
Ecological trip
The current speed has a negative effect on fuel consumption. The driving is not liquid, drive with anticipation.
Recommended gear.
Tips for reducing fuel consumption
When tapping the “Page” the display shows useful tips on how to reduce fuel consumption. These tips can to be helpful to drive more economically.
Note
■ Resetting the single-trip memory “from start” also resets the average con-
sumption E and the driving assessment D.■
With some Infotainment types changing the units for the fuel consumption
indicator causes the resetting of the average fuel consumption values
E
.
Avoiding damage to your vehicle
Introduction
This chapter contains information on the following subjects:
Driving Tips
108
Driving through water
108
This section of the manual contains important information on preventing dam-
age to the vehicle while driving.
Driving Tips
Only drive on such roads and in such terrain, which match the vehicle parame-
ters » page 183 , 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.WARNING■ 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.■
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 vehicle can get damaged.■
Any objects that get trapped under the vehicle floor must be removed as
soon as possible. These objects can damage the fuel lines, the brake system,
seals and other parts of the vehicle.
■
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.
Driving through water
Fig. 121
Maximum permissible water lev-
el when driving through water
The following instructions must be observed if vehicle damage is to be avoided
when driving through water (e.g. flooded roads).
108Driving
›Therefore, always determine the depth of the water before driving through
water.
The water level must not reach above the web of the lower beam » Fig. 121.›
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 engine's air induction system or other parts
of the vehicle.
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION
■ Should water penetrate into the intake system of the engine, there is a
threat of serious damage being incurred by the engine parts!■
When driving through water, some vehicle parts such as chassis, electrics or
transmissions 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 water.
■
Do not drive through salt water, as the salt can cause corrosion. A vehicle
coming into contact with salt water is to be thoroughly rinsed with fresh wa-
ter.
Assist systems
General information
Introduction
WARNINGThe following general information regarding the use of assistance systems
must be observed.■
The assistance systems only serve to support the driver and do not re-
lieve the driver of the responsibility for driving the vehicle.
■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only enable, disable or set the assistance systems so that you have the
car fully under control in every traffic situation - risk of accident!
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
110
Anti-lock braking system (ABS)
110
Traction control (TCS)
110
Electronic Differential Lock (EDL)
111
Brake Assist (HBA)
111
Hill Start Assist (HHC)
111
Multi collision brake (MCB)
111
Trailer stabilization system (TSA)
111
This chapter describes the functions of the brake and stabilization systems.
The error display is in Chapter » page 31, Indicator lights .
109Assist systems
Parking assistance (ParkPilot)
Introduction
This chapter contains information on the following subjects:
Function
112
Display in the Infotainment display
113
Activation / deactivation
113
Automatic system activation when moving forward
114
Park Assist (hereinafter referred to as the system) draws attention via acoustic
signals or the Infotainment display when manoeuvring around obstacles in the
vicinity of the vehicle.
WARNING■ The general information relating to the use of assistance systems must
be observed » page 109, in section Introduction .■
Moving persons or objects may not be recognised 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.
■
Before reversing, you should make sure that there are no small obstacles,
such as rocks, thin posts, trailer draw-bars etc. in front or behind your vehi-
cle. Such obstacles may not be recognised by the system sensors.
CAUTION
■ Keep the system sensors » Fig. 123 on page 112 clean, snow-and ice-free and
do not cover with any objects of any kind, otherwise the system functioning
may be impaired.■
Under adverse weather conditions (heavy rain, water vapour, very low or
high temperatures, etc.), the system function may be limited - “incorrect recog-
nition of obstacle”.
■
Accessories additionally installed on the vehicle rear, such as bicycle carriers,
can impair the system function.
FunctionFig. 123
Installation position of the sensors on the left side of the vehicle:
front/rear
Fig. 124
Sampled areas and range of the
sensors
Read and observe and on page 112 first.
The system uses ultrasound waves to calculate the distance between the
bumper and an obstacle. The ultrasonic sensors are, depending on vehicle
equipment,, located in the back or in the front bumper » Fig. 123.
Depending on the equipment, the following system versions can exist
» Fig. 124 .
▶ Version 1: warns of obstacles in the areas
C
,
D
.
▶ Version 2: warns of obstacles in the areas
A
,
B
,
C
,
D
.
112Driving
Approximate range of sensors (in cm)Area » Fig. 124Version 1
(3 sensors)Version 2
(7 sensors)A-120B-60C160160D6060
Audible signals
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!
The acoustic signals can be set in the Infotainment » Owner´s Manual Infotain-
ment , chapter CAR - Vehicle Settings .
Towing a trailer
When towing, or when another accessory is connected to the trailer socket on-
ly the areas
A
and
B
» Fig. 124 are active in the system.
Note
The signal tones for front obstacle recognition are factory-set to be higher
than for rear obstacle recognition.
Display in the Infotainment display
Fig. 125
Display
Read and observe and on page 112 first.
Function keys and obstacle warning » Fig. 125 Depending on the Infotainment type: Switching off park assistant dis-
play. Switching audible parking signals on/off.Message: Look! Safe to move?Colour of an object detected in the collision area (the distance to the
obstacle is less than 30 cm).
Stop driving in the direction of the ob-
stacle!Colour of an object detected in the manoeuvring area (the distance to
the obstacle is more than 30 cm).Colour of an object detected in the outside the manoeuvring area (the
distance to the obstacle is more than 30 cm).System failure (there is no indication of obstacles).
Activation / deactivation
Fig. 126
System key (option 2)
Read and observe and on page 112 first.
Activation
The activation of the system is initiated when the reverse gear is engaged, or
vehicles with the Variant 2, also by pressing the symbol key
» Fig. 126
.
This is confirmed by a short acoustic signal (the symbol in the button lights
up).
Deactivation
On vehicles with Version 1, the system can be deactivated by moving out of re-
verse gear.
For vehicles with Version 2, the system is deactivated by pressing the symbol
button or automatically at a speed over 10 km/h (the symbol
in the but-
ton goes out).
113Assist systems
Displaying an error
If a warning signal sounds for about 3 seconds after activating the system and
there is no obstacle close to your car, this indicates a system fault. The fault is
also indicated by the symbol
flashing in the button. Seek help from a spe-
cialist garage.
Note
The system can only be activated with the symbol key at a speed of below
approx. 15 km / hr.
Automatic system activation when moving forward
Fig. 127
Infotainment display: Display
with automatic activation
Read and observe and on page 112 first.
The automatic system activation occurs when moving forward at a speed be- low 10 km / h when the vehicle approaches an obstacle.
After activation, the following is shown in the left pane of the Infotainment
display » Fig. 127 .
Acoustic signals are sounded as of a distance from the obstacle of around
50 cm.
The automatic display can be enabled or disabled in the Infotainment » Owner
´s Manual Infotainment , chapter CAR - vehicle settings .
Speed control system
Introduction
This chapter contains information on the following subjects:
Functioning
114
Operating Description
115The Cruise Control System (CCS) maintains a set speed without you having to
actuate the accelerator pedal.
The status where the CCS maintains the speed is referred to hereinafter as the
control .WARNING■
The general information relating to the use of assistance systems must
be observed » page 109, in section Introduction .■
After pressing the clutch pedal, no interrupted control occurs! For exam-
ple, if a different gear is engaged and the clutch pedal is released, control is
continued.
Functioning
Fig. 128
MAXI DOT display: Examples of status displays the CCS
114Driving
Fig. 129
Segment display: Examples of status displays the CCS
Read and observe
on page 114 first.
CCS status displays » Fig. 128 , » Fig. 129
Speed set, but control is inactive.
Control is active.
No speed set.
System fault - seek assistance from a specialist garage immediately.
Basic requirements for starting the control The CCS is activated.
On vehicles with a manual transmission , the second gear or higher is en-
gaged.
On vehicles with an automatic transmission , the selector lever is in the
D/S position or in the Tiptronic position.
The current speed is higher than approx. 20 km/h.
This is only possible within the range which is permitted by the power output
and braking power of the engine.
WARNINGIf the engine power and engine braking effect is insufficient to maintain
the set speed, vehicle operation must be taken over!Operating DescriptionFig. 130
Cruise control system controls
Read and observe on page 114 first.
Overview of the CCS controls » Fig. 130ADeactivate CCS (delete set speed) Interrupt control (sprung position) Activate CCS (control deactivated)BTake control again a)
/ Increase speedCStart control / reduce speeda)
If no speed is set the current speed is adopted.
At the start of the regulation 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 the sys-
tem being switched on unintentionally.■
Control may only be resumed if the set speed is not too high for the cur-
rent traffic conditions.
115Assist systems
NoteDuring 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.
Front Assist
Introduction
This chapter contains information on the following subjects:
Radar sensor
116
Operation
117
Distance warning (dangerous distance)
117
Warning and automatic braking
117
Disable/enable
118
Information messages
118
The Front Assist (hereinafter referred to as the system) warns you of the dan-
ger of a collision with a vehicle or another obstacle in front of the vehicle, and
tries to avoid a collision or mitigate its consequences by automatically applying
the brakes where necessary.
The area in front of the vehicle is monitored by a radar sensor » Fig. 131 on
page 116 .
WARNING■
The general information relating to the use of assistance systems must
be observed » page 109, in section Introduction .■
The system does not respond to crossing or oncoming objects.
CAUTION
In case of failure of more than one brake light on the vehicle or on the electri-
cally connected trailer, the system becomes unavailable.Radar sensorFig. 131
Mounting location of the radar
sensor
Read and observe and on page 116 first.
The radar sensor » Fig. 131(hereinafter referred to as the sensor) may detect
objects by emitting and receiving electromagnetic waves.
The sensor function may be impaired in the events of one of the following. ▶ The sensor is soiled by mud, snow and the like.
▶ The area in front and around the sensor is obscured by labels, auxiliary lights
and similar.
▶ When 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 118, 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 and similar. 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.116Driving