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2.Tap the Cruise Control button in the centerdisplay's Function view. The button's indica-tor will change from GRAY to GREEN.
>The symbol in the instrument panel will
change from ACC to CC, indicating that Adaptive Cruise Con-trol is off and Cruise Control is in standbymode.
3.Pressing the button on the steeringwheel keypad.
>Cruise Control will start and the vehicle'scurrent speed will be set.
WARNING
Switching from ACC to CC means that thevehicle:
will no longer maintain a preset timeinterval to the vehicle ahead.
will only follow the stored speed and thedriver must therefore apply the brakeswhen necessary.
If CC is active when the engine is turned off, ACCwill be automatically activated the next time theengine is started.
Switching from CC to ACC
To do so:
1.Press the button on the steering wheelkeypad to put Cruise Control in standbymode.
2.Tap the Cruise Control button in Functionview. The button's indicator will change fromGREEN to GRAY.
>The symbols in the instrument panel will
switch from CC to ACCto indicate that Adaptive Cruise Control isin standby mode.
3.Pressing the button on the steeringwheel keypad.
>Adaptive Cruise Control will go into activemode and set the vehicle's current speedand the selected time interval to the vehi-cle ahead.
Related information
Adaptive Cruise Control* (p. 272)
Cruise control (p. 266)
DRIVER SUPPORT
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281
Pilot Assist30
Pilot Assist helps the driver keep the vehicle inthe current traffic lane by providing steeringassistance and maintaining an even speed and aset time interval to the vehicle ahead.
How Pilot Assist works
The Pilot Assist function is primarily intended foruse on highways and other major roads where itcan help provide a more comfortable and relaxingdriving experience.
The camera/radar sensor monitors the distance to thevehicle ahead and detects lane markings.
Camera and radar sensor
Distance monitor
Lane marker line monitors
The driver sets the desired speed and distance tothe vehicle ahead. Pilot Assist monitors the dis-tance to the vehicle ahead and the traffic lane'sside markers using the camera and radar sensor.The system maintains the set time interval to thevehicle ahead by automatically adjusting yourvehicle's speed and keeps your vehicle in its laneby providing steering assistance.
Pilot Assist's steering assistance is based onmonitoring the direction of the vehicle ahead andthe traffic lane's side marker lines. The driver canoverride Pilot Assist's steering recommendationsat any time and steer in another direction, e.g. tochange lanes or avoid obstacles on the road.
If the camera/radar sensor cannot detect thelane's side marker lines or if Pilot Assist is unablefor some other reason to clearly interpret thelane, Pilot Assist will temporarily deactivate steer-ing assistance until it can once again interpretthe lane markings. However, the speed and dis-tance warnings will remain active.
WARNING
Pilot Assist is deactivated automatically andresumes working without prior notice.
The color of the steering wheelsymbol indicates the currentstatus of steering assistance:
• GREEN indicates that steer-ing assistance is active.
• GRAY (as shown in illustra-tion) indicates that steering assistance is deacti-vated.
WARNING
Pilot Assist should only be used if there areclear lane lines painted on each side of thelane. All other use will increase the risk ofcontact with nearby obstacles that cannot bedetected by the functions.
30Depending on market, this function can be either standard or optional.
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284
Instrument panel
Speed indicators.
Set speed
Speed of the vehicle ahead
The current speed of your vehicle
Related information
Pilot Assist (p. 281)
Activating and starting Pilot Assist
Pilot Assist must first be activated and thenstarted before it can help regulate speed anddistance and provide steering assistance.
Note: This illustration is general and details may varydepending on model.
To start Pilot Assist:
The driver's seat belt must be buckled andthe driver's door must be closed.
There must be a vehicle ahead (target vehi-cle) within a reasonable distance or yourvehicle's current speed must be at least15 km/h (9 mph).
With Adaptive Cruise Control in standby mode:
1.Press the ▶ button on the steering wheel (6).
>The symbol will change to PilotAssist in standby mode (8).
2.Press the button on the steering wheel(2).
>Pilot Assist will start and the currentspeed will be stored, which will be shownby numbers in the center of the speedom-eter.
...or...
With Adaptive Cruise Control started:
–Press the ▶ button on the steering wheel (6).
>Pilot Assist will start.
Pilot Assist's steering assis-tance is only active when thesteering wheel symbol (2)changes from GRAY toGREEN.
Pilot Assist will only regulatethe time interval to the vehicle ahead when thedistance symbol shows a vehicle (1) over thesteering wheel symbol.
A speed interval will be markedat the same time.
The higher speed is the setspeed for your vehicle and thelower speed is the speed of thevehicle ahead (target vehicle).
Hands on the steering wheel
Pilot Assist only functions if the driver's handsare on the steering wheel.
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* Option/accessory.294
–Change a set speed by pressing the (1)
or (2) buttons briefly or by pressing andholding them:
Brief press: Each press changes thespeed in +/- 5 km/h (+/- 5 mph) incre-ments.
Press and hold: Release the button whenthe set speed indicator (3) has moved tothe desired speed.
NOTE
For vehicles without Adaptive Cruise Control*,speed instead increases by +/- 1km/h(+/- 1 mph) each time the button is pressed.
The most recently set speed will be stored.
If speed is increased by depressing the accelera-
tor pedal while pressing the (1) button onthe steering wheel, the vehicle's speed when thebutton is pressed will be stored as the set speed.
Temporarily increasing speed using the accelera-tor pedal, e.g. when passing another vehicle, willnot affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
Automatic transmission
The driver support functions can follow anothervehicle at speeds from a standstill up to200 km/h (125 mph).
Pilot Assist can provide steering assistance fromnear-stationary speeds up to 140 km/h(87 mph).
The lowest speed that can be set is 30 km/h(20 mph). When following another vehicle, ACCcan monitor that vehicle's speed and slow yourown vehicle down to a standstill, but it is not pos-sible to set speeds lower than 30 km/h(20 mph).
Related information
Driver support systems (p. 260)
Cruise control (p. 266)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
Auto-hold braking with driversupport
Pilot Assist and Adaptive Cruise Control*
(ACC39) have a special brake function in slowtraffic and while stationary.
Braking function in slow traffic and at a
standstill
In slow-moving, stop-and-go traffic or when stop-ped at a traffic light, driving will resume automati-cally if the vehicle is stopped for less thanapprox. 3 seconds. If it takes more than 3 sec-onds for the vehicle ahead to begin moving again,the driver support function will go into standbymode and the auto-hold brake function will acti-vate.
–The function can be reactivated by:
Pressing the button on the steeringwheel keypad.
Pressing the accelerator pedal.
>The function will resume following thevehicle ahead if it begins to move withinapprox. 6 seconds.
DRIVER SUPPORT
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* Option/accessory.295
NOTE
Driver support can keep the vehicle stationaryfor no more than 5 minutes – after that timethe parking brake is applied and the functionis deactivated.
The parking brake must be released beforedriver support can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, auto-hold will be deactivatedwhen the vehicle is at a standstill and the func-tion will go into standby mode. This means thatthe brakes will be released and the vehicle couldbegin to roll. The driver must actively apply thebrakes to keep the vehicle stationary.
This can occur if:
the driver depresses the brake pedal
the parking brake is applied
the gear selector is moved to the P, N or Rpositions
the driver puts the function in standby mode.
Auto Activate Parking Brake
In certain situations, the parking brake will beapplied to keep the vehicle at a standstill.
This occurs if the function is keeping the vehiclestationary using the brakes and:
the driver opens the door or unbuckleshis/her seat belt
the function has kept the vehicle at a stand-still for more than approx. 5 minutes
the brakes overheat
the driver switches off the engine manually.
Related information
Driver support systems (p. 260)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
Brake functions (p. 396)
Passing assistance
Passing assistance can assist the driver whenpassing other vehicles. The function can beused with Pilot Assist or Adaptive Cruise Con-
trol* (ACC40).
How passing assistance works
When Pilot Assist or ACC is following anothervehicle and you indicate that you intend to pass
that vehicle by using the turn signal41, the systemwill begin accelerating toward the vehicle aheadbefore your vehicle has moved into the passinglane.
The function will then delay a speed reduction toavoid early braking as your vehicle approaches aslower-moving vehicle.
The function remains active until your vehicle haspassed the other vehicle.
WARNING
Please note that this function can be acti-vated in more situations than just passinganother vehicle, such as when a direction indi-cator is used to indicate a lane change orbefore exiting to another road – the vehiclewill then briefly accelerate.
39Adaptive Cruise Control40Adaptive Cruise Control41Only the left-hand turn signal for left-hand drive vehicles, or right-hand turn signal for right-hand drive vehicles.
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Related information
Driver support systems (p. 260)
Using passing assistance (p. 296)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
Using passing assistance
Several conditions must be met for passingassistance to be possible.
In order to activate passing assistance:
your vehicle must be following a vehicleahead (target vehicle)
your vehicle's current speed must beat least 70 km/h (43 mph)
the set speed must be high enough tosafely pass another vehicle.
To start passing assistance:
–Turn on the left turn signal.
>Passing assistance will start.
WARNING
The driver should be aware that if conditionssuddenly change when using Passing Assis-tance, the function may implement an unde-sired acceleration in certain conditions.
Some situations should be avoided, e.g. if:
the vehicle is approaching an exit in thesame direction as passing would normallyoccur
the vehicle ahead slows before your vehi-cle has had time to switch to the passinglane
traffic in the passing lane slows down
Situations of this type can be avoided by tempo-rarily putting Adaptive Cruise Control or PilotAssist in standby mode.
Related information
Passing assistance (p. 295)
Adaptive Cruise Control* (p. 272)
Pilot Assist (p. 281)
DRIVER SUPPORT
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305
City Safety™
City Safety47 can alert the driver with light,sound and pulsations in the brake pedal to helpthe driver detect pedestrians, cyclists, large ani-mals and vehicles that appear suddenly – thevehicle will then attempt to automatically brake ifthe driver does not act within a reasonableamount of time.
Location of the camera and radar sensor.
City Safety can help prevent a collision or lowerthe vehicle's speed at the point of impact.
City Safety is an aid intended to assist the driverif a collision with a pedestrian, large animal,cyclist or vehicle is imminent.
City Safety can help the driver avoid a collisionwhen e.g. driving in stop-and-go traffic, when
changes in the traffic ahead and driver distractioncould lead to an incident.
The function assists the driver by automaticallyapplying the brakes if there is an imminent risk ofa collision and the driver does not react in time bybraking and/or steering away.
City Safety activates a brief, forceful braking in anattempt to stop your vehicle immediately behindthe vehicle or object ahead.
City Safety is activated in situations in which thedriver should have applied the brakes much ear-lier, which means that the system will not be ableto assist the driver in all situations.
City Safety is designed to be activated as late aspossible to help avoid unnecessary intervention.
Normally, the occupants of the vehicle will not beaware of City Safety except when the systemintervenes when a collision is imminent.
WARNING
The City Safety auto-brake function canprevent a collision or reduce collisionspeed, but to ensure full brake perform-ance the driver should always depress thebrake pedal – even when the car auto-brakes.
The warning and steering assistance areonly activated if there is a high risk of col-lision – you must therefore never wait forthe collision warning or City Safety tointervene.
Warnings and brake interventions forpedestrians and cyclists are disengagedat vehicle speeds over 80 km/h(50 mph).
City Safety does not activate auto-brakingintervention during heavy acceleration.
47This function is not available on all markets.
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DRIVER SUPPORT
* Option/accessory.308
3 - Auto-brake
The automatic braking function is activated at thelast moment.
If the driver has not taken evasive action by thisstage and a collision is imminent, the automaticbraking function will be triggered. This occurswhether or not the driver is pressing the brakepedal. Full braking force will be applied to reducethe speed at impact or reduced braking effect willbe applied if this is sufficient to avoid the colli-sion.
The seat belt tensioner may be activated whenthe automatic braking function is triggered.
In certain situations, auto-braking may begin witha limited braking force before applying full brak-ing force.
If City Safety has prevented a collision, the vehi-cle will be kept at a standstill until the drivertakes action. If the vehicle has slowed to avoidcolliding with a slower-moving vehicle ahead, yourspeed will be reduced to that vehicle's speed.
Auto-braking can always be cancelled if thedriver presses hard on the accelerator pedal.
NOTE
When City Safety activates the brakes, thebrake lights come on.
When City Safety applies the brakes, a text mes-sage will appear in the instrument panel to notifythe driver that the function is/was activated.
WARNING
City Safety may not be used to change howthe driver operates the vehicle. The drivermust not only rely on City Safety to brake thevehicle.
Related information
City Safety™ (p. 305)
Head-up display* (p. 140)
Seat belt tensioners (p. 50)
Setting a warning distance for CitySafety
City Safety is always active, but the function'swarning distance can be adjusted.
NOTE
The City Safety function cannot be deacti-vated. It is activated automatically each timethe engine/electric motor is started.
The alert distance determines the sensitivity ofthe system and regulates the distance at whichthe light, sound and brake pulsations will be acti-vated.
To select warning distance:
1.Select SettingsMy CarIntelliSafe inthe center display's Top view.
2.Under City Safety Warning, tap Late,Normal or Early to set the desired warningdistance.
If the driver feels that the Early setting is givingtoo many warnings or finds them irritating, theNormal or Late warning distance settings canbe selected instead.
If the driver feels that the warnings are too fre-quent and distracting, the warning distance canbe reduced. This will reduce the total number ofwarnings, but it will also result in City Safety pro-viding warnings at a later stage.