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* Option/accessory, for more information, see Introduction.191
Time distance
ACC is active at the GREEN symbol (WHITE = standby mode).
Adaptive cruise control without Speed limiter
Standby mode ceases and the stored speed is resumed.
Cruise control - On/Off or Standby mode.
Time interval - Increase/decrease.
Activate and adjust the speed.
(Not used)
Green marking at stored speed (WHITE = standby mode).
Time distance
ACC is active at the GREEN symbol (WHITE = standby mode).
Related information
• Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - function (p. 189)
• Adaptive cruise control* - symbols andmessages (p. 200)
Adaptive cruise control* - managing speed
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead. To enable cruise control:
• Press the steering wheel button
- a
similar WHITE symbol illuminates in the combined instrument panel (8) whichshows that cruise control is in standbymode (p. 193).
To activate cruise control: • At the required speed - press the steering wheel button
or .
> The current speed is stored in the mem- ory, the combined instrument panel shows a "magnifying glass" around theselected speed for a second or so and itsmarking changes from WHITE to GREEN.
When this symbol changes colourfrom WHITE to GREEN, the cruisecontrol is active and the car main-
tains the stored speed.
Only when the symbol shows an image of another vehicleis the distance to the vehicle
in front controlled by thecruise control.
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192* Option/accessory, for more information, see Introduction.
At the same time a speed range is marked:
• the higher speed with the GREEN mark- ing (6) is the pre-programmed speed
• the lower speed is the speed of the car infront.
Changing the speedTo change the stored speed: •
Adjust with short presses on
or -
every press gives +/- 5 km/h. The last presses made are stored in the memory.
If speed is increased using the accelera- tor pedal prior to pressing the
/ but-
ton, then it is the car's current speed when the button is pressed that is storedin the cruise control.
To adjust +/- 1 km/h: • Hold down the button and release it at the required speed.
NOTE
If any of the Cruise Control buttons are held depressed for several minutes then itis blocked and deactivated. To be able toreactivate Cruise Control, the car must bestopped and the engine restarted. In certain situations, cruise control cannot be activated. In this case, the combined instrument panel (p. 200) shows
Cruise
control Unavailable.
Related information
• Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - overview (p. 190)
• Adaptive cruise control* - function (p.189)
Adaptive cruise control* - set time interval
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead.
Different time intervals to thevehicle in front can beselected and shown in thecombined instrument panelas 1-5 horizontal lines - themore lines the longer thetime interval. One line corre-
sponds to approximately 1 second to thevehicle in front, 5 linesapproximately 3 seconds.
To set/change the time distance:
• Turn the thumbwheel on the steering wheel keypad (p. 190) (or use the
/buttons for cars without Speed limiter).
At low speed, when the distances are short, the adaptive cruise control increases the timeinterval slightly. The adaptive cruise control allows the time interval to vary noticeably in certain situationsin order to allow the car to follow the vehiclein front smoothly and comfortably. Note that a short time interval only allows the driver a short time to react and take action ifany unforeseen traffic problem should arise.
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* Option/accessory, for more information, see Introduction.193
The same symbol is also shown when Dis- tance Warning (p. 202) function is activated.
NOTE
Only use the time intervals permitted by local traffic regulations. If Cruise Control does not appear to react when activated, this may be because thetime distance to the car in front is prevent-ing an increase in speed. The higher the speed the longer the calcu- lated distance in metres for a given timeinterval.
Related information
•
Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - overview (p. 190)
• Adaptive cruise control* - function (p.189)
• Adaptive cruise control* - deactivate (p.194)
Adaptive cruise control* - temporary deactivation, and standby mode
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead. The cruise control can be tempo-rarily deactivated and set in standby mode.
Temporary deactivation - standby mode
with Speed limiter
To temporarily disengage the adaptive cruisecontrol and set it in standby mode:
• Press the steering wheel button
This symbol and the stored speed's marking then change colour fromGREEN to WHITE.
Temporary deactivation - standby mode without Speed limiter
To temporarily disengage the adaptive cruise control and set it in standby mode:
• Press the steering wheel button
Standby mode due to driver interventionCruise control is temporarily disengaged and set in standby mode if:
• the foot brake is used
• the clutch pedal is depressed for longer than 1 minute 9 •
the gear selector is moved to
N position
(automatic gearbox)
• the driver maintains a speed higher than the set speed for longer than 1 minute.
The driver must then regulate the speed. A temporary increase in speed with the accel- erator pedal, e.g. during overtaking, does notaffect the cruise control setting - the carreturns to the last stored speed when theaccelerator pedal is released.
Automatic standby modeThe adaptive cruise control is dependent onother systems, e.g. DSTC (Stability and trac-tion control system) (p. 175). If any of thesesystems stop working then cruise control isautomatically deactivated. In the event of automatic deactivation a signal will sound and the message
Cruise control
Cancelled is shown in the combined instru-
ment panel. The driver must then intervene and adapt the speed and distance to thevehicle ahead. An automatic deactivation can be due to:
• the driver opens the door
• the driver takes off his seatbelt
• engine speed is too low/high
• speed has fallen below 30 km/h 10
9
Disengaging and selecting a higher or lower gear does not involve standby mode.
10 Does not apply to a car with Queue Assistant - it manages right down to stationary.
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194* Option/accessory, for more information, see Introduction.
• wheels lose traction
• brake temperature is high
• the radar sensor is covered e.g. by wet snow or heavy rain (radar waves blocked).
Resume set speedAdaptive cruise control in standby mode is reactivated with one press on the steering wheel button
- the speed is then set to the
last stored speed.
NOTE
A marked speed increase may occur once the speed has been resumed by selecting
.
Related information
• Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - overview (p. 190)
• Adaptive cruise control* - function (p.189)
Adaptive cruise control* - overtaking another vehicle
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead. When the car is following another vehicle and the driver indicates an impending overtaking manoeuvre with the direction indicator 11
, the
adaptive cruise control helps to briefly accel- erate the car towards the vehicle in front. This function is active at speeds above 70 km/h.
WARNING
Be aware that this function can be acti- vated in more situations other than duringovertaking, e.g. when a direction indicatoris used to indicate a change of lane or exitto another road - the car will then acceler-ate briefly.
Related information
• Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - overview (p. 190)
• Adaptive cruise control* - function (p.189)
Adaptive cruise control* - deactivate
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead.
Keypad with Speed limiterThe adaptive cruise control is switched off with the steering wheel button
in the
steering wheel keypad (p. 190). The set speed is cleared and cannot be resumed with the
button.
Keypad without Speed limiterWith a short press on the steering wheel but- ton
the adaptive cruise control is set in
standby mode (p. 193). With a further short press it is deactivated. The set speed is cleared and cannot be resumed with the
button.
Related information
• Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - function (p. 189)
• Adaptive cruise control* - symbols andmessages (p. 200)
11
On left flash only in left-hand-drive car, or right flash in right-hand-drive car.
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* Option/accessory, for more information, see Introduction.195
Adaptive Cruise Control* - Queue Assist
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver to maintain aneven speed and a safe distance from the vehi-cle ahead. Queue Assist also provides theAdaptive Cruise Control with enhanced func-tionality at speeds below 30 km/h.. In cars with automatic gearbox the adaptive cruise control is supplemented with theQueue Assist function (also referred to as"Queue Assist"). Queue Assistant has the following functions:
• Extended speed range - also below 30 km/h and when stationary
• Change of target
• Automatic braking ceases when station-ary
• Automatic activation parking brake.
Note that the lowest programmable speed for the adaptive cruise control is 30 km/h - eventhough it is capable of following another vehi-cle down to a standstill, a lower speed can-
not be selected.
Extended speed range
NOTE
In order to activate the cruise control the driver's door must be closed and the drivermust be wearing the seatbelt.
With an automatic gearbox, the adaptive cruise control can follow another vehiclewithin the range 0-200 km/h.
NOTE
Activation of the cruise control below 30 km/h requires a vehicle in front within areasonable distance.
For shorter stops in connection with inching in slow traffic or at traffic lights driving isautomatically resumed if the stops do notexceed about 3 seconds - if it takes longerbefore the car in front starts moving againthen the Adaptive cruise control is set instandby mode with automatic braking. Thedriver must then reactivate it in one of the fol-lowing ways:
• Press the steering wheel button
.
or
• Depress the accelerator pedal.
> The cruise control will then resume fol- lowing the vehicle in front.
NOTE
Queue Assist can hold the car stationary for a maximum of 4 minutes - then theparking brake is applied and Cruise Con-trol is disengaged.
• The driver has to release the parking brake before the cruise control can bereactivated.
Change of target
If the target vehicle in front suddenly turns then there may be stationary traffic in front.
When the adaptive cruise control is following another vehicle at speeds below 30 km/h and
changes target from a moving to a stationaryvehicle, the cruise control will slow down forthe stationary vehicle.
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WARNING
When the cruise control is following another vehicle at speeds in excess of
30 km/h and the target is changed from amoving vehicle to a stationary vehicle, thecruise control will ignore the stationaryvehicle and instead select the storedspeed. • The driver must intervene him/herself and brake.
Automatic standby mode with change of target
The adaptive cruise control is disengaged and set in standby mode:
• when the speed is below 5 km/h and cruise control is not sure whether the tar-get object is a stationary vehicle or someother object, e.g. a speed bump.
• when the speed is below 5 km/h and thevehicle in front turns off so the cruisecontrol no longer has a vehicle to follow.
Termination of automatic braking at a
standstill
In certain situations, Queue Assist stops automatic braking at a standstill. This meansthat the brakes are released and the car maystart to roll - the driver must therefore inter-vene and brake the car himself/herself inorder to maintain its position. Queue Assist releases the foot brake and setsthe adaptive cruise control in standby modein the following situations:
• the driver puts his/her foot on the brake pedal
• the parking brake is applied
• the gear selector is moved to
P, N or R
position
• the driver sets the cruise control instandby mode.
Automatic activation parking brakeIn certain situations Queue Assist applies the parking brake in order to keep the car remain-ing stationary. This takes place if:
• the driver opens the door or takes off his/her seatbelt
• DSTC is changed from
Normal to Sport
mode
• Queue Assist has held the car stationaryfor more than 4 minutes
• the engine is switched off
• the brakes have overheated.
Related information
•Adaptive cruise control - ACC* (p. 188)
• Adaptive cruise control* - overview (p.190)
• Adaptive cruise control* - function (p.189)
Adaptive cruise control* - switch cruise control functionality
The adaptive cruise control (ACC – Adaptive Cruise Control) helps the driver maintain asafe distance from the vehicle ahead.
Changing from ACC to CCWith one press of the button the adaptivepart (spacing system) in the cruise control isdeactivated, at which point the car just fol-lows the set speed.
• Give a
long press on the steering wheel
button
- the combined instrument
panel's symbol changes from
to .
> By these means the standard cruise con- trol (p. 185) CC (Cruise Control) is activated.
WARNING
The car no longer brakes automatically after switching from ACC to CC - it merelyfollows the set speed.
Changing back from CC to ACCSwitch off cruise control with 1-2 presses on
in accordance with the deactivation
instructions (p. 194). The next time the sys- tem is switched on it is the Adaptive cruisecontrol that is activated.
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* Option/accessory, for more information, see Introduction.219
NOTE
The visual warning signal can be temporar- ily disengaged in the event of high passen-ger compartment temperature caused bystrong sunlight for example. If this occursthen the warning sound is activated even ifit is deactivated in the menu system.
• Warnings may not appear if the dis- tance to the vehicle in front is small orif steering wheel and pedal move-ments are large, e.g. a very active driv-ing style.
WARNING
Warnings and brake interventions could be implemented late or not at all if the trafficsituation or external influences mean thatthe radar or camera sensor cannot detecta pedestrian, a vehicle or a cyclist in frontcorrectly. The sensor system has a limited range for pedestrians and cyclists 19
- the system
can provide effective warnings and brake interventions for them at vehicle speeds upto 50 km/h. For stationary or slow-movingvehicles, warnings and brake interventionsare effective at vehicle speeds up to70 km/h. Warnings for stationary or slow-moving vehicles could be disengaged due to dark-ness or poor visibility. Warnings and brake interventions for pedestrians and cyclists are deactivated atvehicle speeds exceeding 80 km/h.
The collision warning system uses the same radar sensors as the Adaptive cruise control(p. 188). Read more about radar sensor limi-tations (p. 197). If warnings are perceived as being too fre- quent or disturbing then the warning distancecan be reduced (p. 217). This would lead tothe system warning at a later stage, whichreduces the total number of warnings. Collision Warning with Auto Brake is tempo-rarily deactivated with reverse gear engaged. Collision Warning with Auto Brake is not acti- vated at low speeds - under 4 km/h, which iswhy the system does not intervene in situa-tions where the car is approaching a vehiclein front very slowly, e.g. when parking. In situations where the driver demonstrates active, aware driving behaviour, a collisionwarning may be postponed slightly in order tokeep unnecessary warnings to a minimum. When Auto Brake has prevented a collision with a stationary object the car remains sta-tionary for a maximum of 1.5 seconds. If thecar is braked for a vehicle in front that is mov-ing, then speed is reduced to the same speedas that maintained by the vehicle in front. On a car with manual gearbox the engine stops when Auto Brake has stopped the car,unless the driver manages to depress theclutch pedal beforehand.
Related information
•
Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - detection ofpedestrians (p. 216)
• Collision warning system* - cyclist detec-tion (p. 214)
19
For cyclists, the warning and full brake intervention may come very late or simultaneously.
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224* Option/accessory, for more information, see Introduction.
Driver Alert System*
The Driver Alert System is intended to assist drivers whose driving ability is deteriorating orwho are inadvertently leaving the lane they aredriving on. The Driver Alert System consists of different functions which can either be switched on atthe same time or individually:
• Driver Alert Control - DAC (p. 225).
• Lane Departure Warning - LDW (p. 229).
• Lane Keeping Aid - LKA (p. 234)
A switched-on function is set in standbymode and is not activated automatically untilspeed exceeds 65 km/h. The function is deactivated again when speed decreases to below 60 km/h. Both functions use a camera which is dependent on the lane having side markingspainted on each side.
WARNING
Driver Alert System does not work in all situations but is designed merely as a sup-plementary aid. The driver always bears ultimate responsi- bility for ensuring that the vehicle is drivensafely.
Related information
• Driver Alert Control (DAC)* (p. 224)
• Driver Alert Control (DAC)* - symbols and messages (p. 227)
• Driver Alert Control (DAC)* - operation (p.225)
• Lane Departure Warning (LDW)* (p. 229)
• Lane Keeping Aid (LKA)* (p. 234)
Driver Alert Control (DAC)*
The DAC function is intended to attract the driver's attention when he/she starts to driveless consistently, e.g. if he/she becomes dis-tracted or starts to fall asleep. The objective for DAC is to detect slowly deteriorating driving ability and it is primarilyintended for major roads. The function is notintended for city traffic.
A camera detects the side markings painted on the carriageway and compares the sectionof the road with the driver's steering wheelmovements. The driver is alerted if the vehicledoes not follow the carriageway evenly. In some cases driving ability is not affected despite driver fatigue. In which case theremay not be any warning issued for the driver.For this reason it is always important to stopand take a break in the event of any signs of
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