When approaching maximum speed (launch control function)1)
The launch control function is available in mode S or Tiptronic.›
Disable the TCS » page 212, Braking and stabilisation systems .
›
START STOP deactivate » page 202, Manually disable / enable system .
›
Fully depress and hold the brake pedal with your left foot.
›
Fully depress the accelerator pedal with your right foot.
›
Release the brake pedal - the vehicle is running at maximum acceleration.
Driving in neutral (“coasting”)
When releasing the accelerator pedal, the vehicle moves without the braking
effect of the engine.
Operating conditions
▶ The selector lever is in the D/S position.
▶ Driving mode Eco or Individual (Drive - Eco) is selected » page 240, Select the
driving mode (Driving Mode Selection) .
▶ The vehicle is travelling at more than 20 km/h.
▶ No trailer or other accessory is connected to the trailer socket.
The gear is selected again automatically, when you depress the accelerator or
brake pedal or pull the left rocker switch
-
towards the steering wheel
» page 208 , Manual shifting of gears (Tiptronic) .
WARNINGRapid acceleration, particularly on slippery roads, can lead to loss of control
of the vehicle – risk of accident!
Running in the engine and economical driving
Introduction
This chapter contains information on the following subjects:
Running in the engine
209
Tips for economical driving
209
DriveGreen function
210
Radiator shutters
210Running in the engine
During the first 1,500 km, the driving manner determines the quality of the
running in process on a new engine.
During the first 1,000 km , the engine should not be charged with more than
3/4 of the maximum permitted engine revs and without 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.
Tips for economical driving
The fuel consumption depends on the driving style, road condition, weather
conditions and the like.
For an economical driving style, the following instructions must be observed. ▶ Avoid unnecessary acceleration and braking.
▶ Observe the recommended gear » page 44.
▶ Avoid full throttle and high speeds.
▶ Reduce idling.
▶ Avoid short distances.
▶ Ensure the correct tyre inflation pressure is maintained » page 277.
▶ Avoid unnecessary ballast.
▶ Remove the roof rack when it is not needed.
▶ Only switch on electrical consumers (e.g. seat heating) for as long as they are
needed. In the Infotainment menu
→
→
conv. Consumers,
, up to three
consumers who currently have the largest share of fuel consumption, can be
displayed.
▶ Before switching on, ventilate the cooling system briefly and do not use the
cooling system with open windows.
▶ Do not leave windows open at high speed.
1)
This function is only valid for some engines.
209Starting-off and Driving
Avoiding damage to your vehicle
Introduction
This chapter contains information on the following subjects:
Driving Tips
211
Driving through water
211
Driving Tips
Only drive on such roads and in such terrain that match the vehicle parameters
» page 303 , 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■ Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions. Too high a speed or an erroneous manoeuvre may
cause serious injury and damage to the vehicle.■
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 items can cause damage to the vehicle (e.g. on parts
of the fuel system or the brake system).
Driving through water
Fig. 263
Maximum permissible water lev-
el when driving through water
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 go above the web of the lower beam
» Fig. 263 .
›
Drive at a maximum speed of walking pace, otherwise a shaft may form in
front of the vehicle which could enable water to enter the vehicle system
(e.g. in the air induction system of the engine).
›
Never stop in the water, do not reverse and do not switch the engine off.
CAUTION
■ Water entering the vehicle systems (e.g. the air induction system of the en-
gine) can cause serious damage to the vehicle!■
Oncoming vehicles can generate water waves which can exceed the permis-
sible water level for your vehicle.
■
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.
211Starting-off and Driving
Assist systems
General information
Introduction
This chapter contains information on the following subjects:
Radar sensor
212WARNING■ 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 when you have the car
fully under control, in every traffic situation - risk of accident!
Radar sensor
Fig. 264
Installation location of the radar
sensor
Read and observe on page 212 first.
The radar sensor (hereinafter referred to only sensor) uses electromagnetic
waves to capture the traffic situation ahead of the vehicle. The radar is located
under a cover » Fig. 264.
The sensor is part of the ACC » page 233 and Front Assist » page 237systems.
The sensor function may be impaired in the event of one of the following sit-
uations arising. ▶ The sensor cover is soiled (e.g. with mud, snow and the like).
▶ The area in front of and around the sensor cover is obscured (e.g. by labels,
auxiliary headlights and the like(.
▶ When visibility is poor (e.g. fog, heavy rain, thick snowfall).
▶ In exceptional cases, the sensor may be covered in the area beneath the cov-
er, e.g. due to snow.
If the sensor cover or the sensor is dirty or covered, a message to that effect
from the ACC system » page 237, Malfunctions or Front Assist » page 240, Mal-
functions system appears in the instrument cluster display.WARNING■
If you suspect that the sensor is damaged, deactivate the ACC system and
Front Assist system » page 235, » page 239 . 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 accident!
CAUTION
Remove snow with a brush and ice with a solvent-free de-icer from the sensor
cover.
Braking and stabilisation systems
Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
213
ESC Sport
213
Anti-lock braking system (ABS)
213
Engine drag torque control (MSR)
213
Traction control (TCS)
214
Electronic Differential Lock (EDL and XDS)
214
Active steering assist (DSR)
214
212Driving
Brake Assist (HBA)214Hill Start Assist (HHC)214
Multicollision brake (MCB)
215
Trailer stabilisation system (TSA)
215
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 33, Warning lights .
WARNINGThe general information relating to the use of assistance systems must be
observed » page 212, in section Introduction .
Stability Control (ESC)
Read and observe
on page 213 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.
During an ECS intervention, the warning light flashes in the instrument clus-
ter.
ESC Sport
Fig. 265
ESC Sport / ASR system button
Read and observe on page 213 first.
ESC Sport allows for a sportier driving style. With ESC Sport switched on, in the
event of light oversteer or understeer of the vehicle, no ESC interventions take
place and the ASR is so limited that the drive wheels can spin.
Activation›Press and hold down the » Fig. 265 button.›
or: On Infotainment, press the button
→Tap on the function surface
→
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. 265 button.
›
or: On Infotainment, press the button
→Tap on the function surface
→
ESC system:
→
Activated
.
With deactivation the warning light
extinguishes
in the instrument cluster
and an appropriate message is displayed in the instrument cluster.
Anti-lock braking system (ABS)
Read and observe
on page 213 first.
ABS prevents the wheels locking when braking. Thus helping the driver to
maintain control of the vehicle.
The intervention of the ABS is noticeable from the pulsating movements of
the brake pedal which is accompanied by noises.
When the ABS system is active, do not brake periodically or reduce the pres-
sure on the brake pedal.
Engine drag torque control (MSR)
Read and observe
on page 213 first.
The MSR prevents the blocking tendency of the drive wheels when shiftingdown or with an abrupt deceleration (e.g. on icy or otherwise slippery road sur-
faces).
If the drive wheels lock, the engine speed is automatically increased. This re-
duces the braking effect of the engine, and the wheels can rotate freely again.
213Assist systems
NoteThe brightness of the indicator light is dependent on the setting of the ve-
hicle lighting. With the low or high beam on the brightness of the light will be
lower.
Activation / deactivation
Read and observe
and on page 219 first.
The activation or deactivation of the system can be carried out in one of the
following ways. ▶ In the instrument cluster display » page 48, Menu item
Assist systems
.
▶ In Infotainment in the menu
→
→
Driver assistance
(Applies to the wizard
for “Blind Spot” Monitoring).
▶ In Infotainment in the
menu
→
→
Parking and manoeuvring
(Applies to
Rear Traffic Alerts).
After switching off and switching on the ignition, depending on the setting pri-
or to switching off the ignition, the systems remains activated / deactivated.
Note
When activating the wizard for “blind spot” monitoring, the warning lights
illuminate briefly in the two exterior mirrors.
Malfunctions
Read and observe
and on page 219 first.
If the systems are not available for some unknown reason, an appropriate
message appears in the display of the instrument cluster.
Sensor covered / dirty
If the sensor is dirty or covered, a message indicating that there is no sensor
view appears. Clean or remove the obstructing object from the sensor environ-
ment » Fig. 271 on page 218 .
Systems unavailable
If the systems are currently unavailable, a message regarding the unavailability
appears. Stop the vehicle, switch off the engine and then start it again. If the
systems are still not available, seek the assistance of a specialist garage.
System fault
In the case of a system fault, an error message appears. Seek help from a spe-
cialist garage.
Reversing camera
Introduction
This chapter contains information on the following subjects:
Operation
222
Activation / deactivation
222
Function surfaces
223
Orientation lines and roadway
223
Mode - Lateral Parking
224
Mode - Parallel parking
224
mode- Driving up to a trailer / Distance monitoring
225
Mode - Monitoring the area behind the vehicle
225
The rear view camera (following as system) helps the driver when parking and
manoeuvring by displaying the area behind the vehicle in the Infotainment
screen (hereinafter only referred to as screen).
There are four modes available for different situations during the park and ma- noeuvring action. The mode change is carried out using the function surfaces
on the screen » page 223.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 212, in section Introduction .■
The system detects obstacles. The display of the auxiliary boxes and lines
is independent of the actual vehicle environment. The driver must judge for
themselves whether the vehicle can park safely in the selected parking
space.
■
The camera may not be soiled or obscured, otherwise the system function
will be significantly affected - there is a risk of accident. For information on
cleaning » page 261 .
221Assist systems
OperationFig. 287
MAXI DOT display (monochrome): Examples of status displays
the CCS
Fig. 288
Segment display: Examples of status displays the CCS
Read and observe
on page 229 first.
CCS status displays » Fig. 287 , » Fig. 288
Speed is set, control is inactive (in the colour display the digits of speed
limits is shown in grey).
Control active (in the colour display the digits of the speed limits are high-
lighted).
No speed set.
System fault - seek assistance from a specialist garage immediately.
Basic requirements for start of 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 greater 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 in order to
maintain the set speed, the acceleration and brake pedals must be taken
over!
Operation description
Fig. 289
Cruise control system controls
Read and observe on page 229 first.
Overview of the CCS controls » Fig. 289AActivate CCS (regulation deactivated) Interrupt control (sprung position) Deactivate CCS (delete set speed)BTake control again a)
/ Increase speedCLaunch control / reduce speedDSwitching between CCS and speed limiter » page 231a)
If no speed is set the current speed is adopted.
After the start of the regulation, the CCS regulates the vehicle to the current
speed and the warning light illuminates in the instrument cluster.
230Driving
Adaptive Cruise Control (ACC)
Introduction
This chapter contains information on the following subjects:
Settings in Infotainment
233
Operation
234
Automatic stopping and starting
234
Operation overview
235
Start control
235
Stop/resume control
235
Set/change the desired speed
236
Set the clearance level
236
Special driving situations
236
Overtaking and towing
237
Malfunctions
237
The Adaptive Cruise 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 212.
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 212, 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 in “sharp” corners or in steep gradients / on steep inclines.
■
When driving through places where metal objects (such as metal build-
ings, railway 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 233 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 selec. Distance
- Switch on/off of the last distance selected
■
Distance:
- Set the distance monitoring to the vehicles ahead
1)
This can be set in the menu on vehicles with a travel mode option as follows » page 240 .
233Assist systems
When cornering
When driving into or driving out of long corners, it could be that a vehicle is
travelling in the adjacent lane and is scanned by the radar » Fig. 297 -
. The
host vehicle is then controlled according to this vehicle.
Narrow vehicles or vehicles travelling side by side
A narrow or offset vehicle driving can only be recognized by the ACC if this is
located in the scanning range of the radar » Fig. 297 -
.
Other vehicles changing lanes
Vehicles that change onto the lane with a small distance » Fig. 298 -
may not
be detected by ACC in good time.
Stationary vehicles
The ACC does not detect stationary objects! When a vehicle detected by the
ACC turns or sheers off and there is a stationary vehicle in front of this vehi-
cle, » Fig. 298 -
the ACC does not respond to the stationary vehicle.
Vehicles with special load or special body parts
Other vehicles with a load or with body parts protruding from the sides, back
or top of the vehicle contour may not be detected by the ACC.
Overtaking and towing
Read and observe
on page 233 first.
When overtaking
When your vehicle is being controlled at a speed that is lower than the set
speed and the turn signal is operated, ACC assesses this situation as meaning
that the driver wishes to overtake. The ACC automatically accelerates the vehi-
cle, thereby reducing the proximity to a vehicle ahead.
If your vehicle changes to the overtaking lane and no vehicle is detected
ahead, ACC accelerates until the set speed is reached and then keeps it con-
stant.
Acceleration can be cancelled at any time by touch on the brake pedal or
pressing the button on the lever
» Fig. 296 on page 235 .
Towing a trailer
When towing, or if another accessory is connected to the trailer socket, ACC
control is set with a lower rate. The manner of driving should therefore be
adapted to this limitation.
Malfunctions
Read and observe
on page 233 first.
If, for some unknown reason, ACC is not available, the warning light
appears
in the display of the instrument cluster and an appropriate message is shown.
Sensor covered / dirty
If the sensor cover or the sensor is dirty or covered, a message appears on the
instrument cluster display stating there is no sensor view. Clean the sensor
cover or remove the obstacles » Fig. 264 on page 212 .
If there is no sensor view in the winter, the snow on the sensor under the cov- er could be the reason. The ACC is functional again after the snow melts away
from the sensor.
ACC not available
If the ACC is currently unavailable, a message concerning the unavailability ap-
pears. Stop the vehicle, switch off the engine and then start it again. If ACC
continues to be unavailable, seek the assistance of a specialist garage.
ACC fault
With an ACC fault, an error message appears. Seek help from a specialist ga-
rage.
Front Assist
Introduction
This chapter contains information on the following subjects:
Settings in Infotainment
238
Operation
238
Distance warning
238
Warning and automatic braking
238
Deactivation/activation
239
Malfunctions
240
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 » page 212.
237Assist systems