WARNING (Continued)■If the vehicle stalls, with engine running, in the D, S , R or Tiptronic mode,
then the vehicle must be prevented from rolling away by means of the
brake pedal, parking brake or using the Auto Hold function. Even when the
engine is idling, the power transmission is never completely interrupted –
the vehicle creeps.■
When leaving the vehicle, the selector lever must always be set to P .
Otherwise, the vehicle could start to move - risk of accident.
CAUTION
■ If you want to move the selector lever from position N to position D / S whilst
driving, the engine must be running at idling speed.■
When stopping on a slope, never try to hold the vehicle using the accelerator
pedal – this may lead to gear damage.
Select selector lever position
Fig. 259
Selector lever settings / display
Read and observe and on page 206 first.
The selector lever can be moved through shifting to one of the following posi-
tions » Fig. 259 . In some positions you have to push the locking button
» page 207 , Selector lever lock .
When the ignition is switched on, the gearbox mode and the currently selected
gear are indicated in the display » Fig. 259.
Park - the position can be set only when the vehicle is at a standstill.
The drive wheels are mechanically locked.
Reverse gear - the position can be set only when the vehicle is at a stand-
still and the engine is at idling speed.
Neutral (idle position) - the power transmission to the drive wheels is in-
terrupted.
PRNForward mode / sports programme - the gear change takes place in the
position S at higher engine speeds than in mode D
(Sprung position) - choice between positions D and S
If the Sport driving mode is selected with the engine running » page 240, Se-
lect the driving mode (Driving Mode Selection) , the transmission is automati-
cally set in the S mode.
E – Economical driving mode
If the driving mode Eco or Individual (engine - Eco) » page 240 is selected and
the selection lever is in the setting D/S, the transmission is automatically set
to mode E. This mode cannot be selected with the selector lever.
The forwards mode is switched up or down automatically in mode E at lower
engine speeds than in mode D.
Selector lever lock
Fig. 260
Shift lock button
Read and observe and on page 206 first.
The selector lever is locked in mode P and N to prevent that the forward driv-
ing is selected accidentally, thereby setting the vehicle in motion.
The selector lever is locked only when the vehicle is stationary and at speeds
up to 5 km/h.
The selector lever lock is indicated by the illumination of the warning light.
Release the gear selector lever from P mode or N
›
Press the brake pedal and the lock button at the same time in the direction
of
1
» Fig. 260 .
To move the selector lever from mode N to D / S only the brake pedal is press-
ed.
D/S207Starting-off and Driving
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
Traction control (TCS)Read and observe
on page 213 first.
The ASR prevents spinning of the drive wheels. TCS reduces the drive powertransmitted to the wheels in the case of slipping wheels. Thus, for example,
driving on road surfaces with low grip is made easier.
During a TCS intervention, the indicator light
flashes in the instrument clus-
ter.
Deactivation
›
Press the
» Fig. 265 on page 213 button.
›
or: On Infotainment, press the button
→Tap on the function surface
→
ESC system:
→
ASR off
.
With deactivation the warning light lights up in the instrument cluster
and
an appropriate message is displayed in the instrument cluster.
Activation
›
Press the
» Fig. 265 on page 213 button.
›
or: On Infotainment, press the button
→Tap on the function surface
→
ESC system:
→
Activated
.
With activation the warning light
is
extinguished and an appropriate mes-
sage is displayed in the instrument cluster.
The TCS should normally always be enabled. The system should be deactivated
only in the following situations, for example. ▶ When driving with snow chains.
▶ When driving in deep snow or on a very loose surface.
▶ When it is necessary to “rock” a car free when it has become stuck.
Electronic Differential Lock (EDL and XDS)
Read and observe
on page 213 first.
EDL prevents the turning of the respective wheel of the driven axle. EDL
brakes the spinning wheel, if necessary, and transmits the driving force to the
other driving wheel. Driving becomes easier on road surfaces with different
traction under each wheel of the driven axle.
EDL switches off automatically to avoid excessive heat generation on the
brake of the wheel being braked. Once the brakes have cooled down, there is
an automatic re-activation of EDL.
XDS is an extension to the electronic differential lock (EDL). XDS does not re-
spond to the relieved inner curve wheel of the driven axle in the case of fast
cornering.
By applying braking force to the relieved wheel, spinning is prevented by the
XDS. This has a positive effect on the driving stability and steerability of the
vehicle.
Active steering assist (DSR)
Read and observe
on page 213 first.
In critical situations, the DSR provides the driver with a steering recommenda-tion in order to stabilise the vehicle. DSR is activated, for example, on the right
and left vehicle side when braking sharply on different road surfaces.
Brake Assist (HBA)
Read and observe
on page 213 first.
The HBA increases the braking effect and helps to reduce the braking dis-
tance.
The HBA is activated by very quick operation of the brake pedal. In order to
achieve the shortest possible braking distance, the brake pedal must be ap-
plied firmly until the vehicle has come to a standstill.
The HBA function is automatically deactivated when the brake pedal is re-
leased.
Hill Start Assist (HHC)
Read and observe
on page 213 first.
When driving on slopes, HHC allows you to move your foot from the brake ped-al to the accelerator pedal without the vehicle rolling downhill on its own.
The vehicle is braked by the system for about 2 seconds after releasing the
brake pedal.
The HHC is active on gradients upwards of 5 % if the driver door is closed. HHC
is only ever active on slopes when in forward or reverse start off.
214Driving
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
The 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.
▶ By pressing the button D
» Fig. 289 .
▶ 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.
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.■
By pressing the button
D
» Fig. 289 during the regulation this is cancelled
and the Speed Limiter is activated.
Speed limiter
Introduction
This chapter contains information on the following subjects:
Function
231
Operation description - Variant with GRA
232
Operation description - Variant with ACC
232
The Speed Limiter limits the maximum driving speed to the set speed limit.
The speed limit can only be exceeded by depressing the accelerator pedal fully.
The condition in which the Speed Limiter prevents a potential set speed limit
excess is referred to as Regulation.
WARNINGThe general information relating to the use of assistance systems must be
observed » page 212, in section Introduction .FunctionFig. 290
MAXI DOT display (monochrome): Examples of Speed Limiter
status displays
Fig. 291
Segment display: Examples of Speed Limiter status displays
Read and observe
on page 231 first.
Status displays of the speed limiter » Fig. 290, » Fig. 291
Speed limit 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 limit set.
System fault - seek assistance from a specialist garage immediately.
Basic requirements for start of control The Speed Limiter is activated.
The current speed is greater than approx. 30 km/h.
231Assist systems
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
OperationFig. 294
Instrument cluster display: Examples of ACC displays
Fig. 295
Instrument cluster display: Examples of ACC status displays
Read and observe
on page 233 first.
The ACC allows you to set a speed of 30 - 160 or 210 km / h (depending on
equipment) and the distance to the vehicle ahead in the range of a very short
to a very long distance.
The ACC adjusts the set speed with respect to the detected vehicle ahead,
thus maintaining the selected proximity.
The ACC can detect a vehicle that is up to approx. 150 m ahead using the radar
sensor.
ACC displays » Fig. 294
Vehicle detected (control active)
Line showing the displacement of the distance when setting » page 236,
Set the clearance level
12Set distance to the vehicle ahead
Vehicle detected (control deactivated)
ACC status displays » Fig. 295
Regulation is inactive (in the colour display the digits of speed limits is
shown in grey).
Regulation active - no vehicle detected (in the colour display the digits of
the speed limits are highlighted).
Regulation deactivated - no speed stored.
Regulation active - vehicle detected (in the colour display the digits of the
speed limits are highlighted).
Note to reduce speed
If the delay of the ACC is insufficient in relation to the vehicle in front, the
warning light lights up in the instrument cluster and the display shows a
message to engage the brake pedal.
Regulation according to the vehicle in the adjacent lane
During regulation your vehicle may be regulated according to the vehicle in the
adjacent lane.
This could occur at speeds above about 80 km/h when your vehicle is moving
faster than the vehicle in the adjacent lane on the driver's side. The display
shows the detected vehicle is in the adjacent lane.
Note
Some ACC notifications in the display of the instrument cluster may be hidden
by notifications for other functions. An ACC notification automatically appears
for a brief moment when there is a change in status of the ACC.
Automatic stopping and starting
Read and observe
on page 233 first.
Vehicles with an automatic transmission can decelerate to a standstill and
start moving again using the ACC.
Decelerate to a standstill
If a vehicle ahead decelerates to a standstill, the ACC will also decelerate your
vehicle to a standstill.
Starting to drive again after a holding period
As soon as the vehicle ahead starts moving again after a holding period, your
vehicle will also move and the speed will continue to be regulated.
34234Driving
If the preceding vehicle starts moving again after a long break, then to contin-
ue the regulation press the accelerator pedal or lever to set the lever in
» page 235 position.
Operation overview
Fig. 296
Operating lever
Read and observe
on page 233 first.
Overview of ACC functions operated with the lever » Fig. 2961Activate ACC (regulation deactivated)2Start control (resume) / increase speed by 1 km/h at a time
(sprung position)3Interrupt control (sprung position)4Deactivate ACC5 Increase speed by 10 km/h at a time6 Decrease speed by 10 km/h at a timeA Set proximity levelBStart control / reduce speed in increments of 1 km/h
If the lever is set from the position
directly into the sprung position
the current speed is stored and the control process is started.
Start control
Read and observe
on page 233 first.
Basic requirements for start of control The ACC is activated.
On vehicles with manual transmission , the second gear or a higher gear is
selected and the current speed is greater than 25 km/h.
On vehicles with automatic transmission , the selector lever is in the D/S
position or in the Tiptronic position.
Start control
›
Press the button
» Fig. 296 on page 235 .
›
OrSet the lever into the sprung position
» Fig. 296 on page 235 .
The ACC takes the current driving speed and performs the control, the warning light illuminates in the instrument cluster.
If the control is started by moving the lever to the position and should
the speed be stored already, the ACC adopts this speed and executes control.
Note
If control is started at a speed of less than 30 km/h on vehicles with an auto-
matic transmission, the speed of 30 km/h is stored. The speed increases auto-
matically to 30 km/h or is regulated with respect to the speed of the vehicle
ahead.
Stop/resume control
Read and observe
on page 233 first.
Stop control
›
Set the lever into the sprung position
» Fig. 296 on page 235 .
›
Or apply the brake.
Control stops, the speed remains stored.
Resume control
›
Start control » page 235, Start control .
Note
Control is also stopped when the clutch pedal is held down for longer than 30
s or the TCS is deactivated.235Assist systems