Login- Download PDF Manual
-
G WARNING The PARKTRONIC is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers always remains with the driver.
G WARNING Make sure no persons or animals are in or near the area in which you are parking/ maneuvering. Otherwise, they could be injured.
PARKTRONIC is an electronic parking aid with ultrasonic sensors. It indicates visually and audibly the distance between your vehicle and an object.
PARKTRONIC is activated automatically when you:
Rswitch on the ignition
Rshift the transmission to position D, R or N
Rrelease the electric parking brake
PARKTRONIC is deactivated at speeds above 11 mph (18km/h). It is reactivated at lower speeds.
PARKTRONIC monitors the area around your vehicle using six sensors in the front and four sensors in the rear.
: Example: sensors in the front bumper,
left-hand side
Range of the sensors
General notes
The sensors must be free of dirt, ice and slush. Otherwise, they may not function correctly. Clean the sensors regularly, taking care not to scratch or damage them (Y page 474).
Side view
Top view
Front sensors
Center
Corners
Rear sensors
Center
Corners
approximately 40in (approximately 100cm)
approximately 24in (approximately 60cm)
approximately 48in (approximately 120cm)
approximately 32in (approximately 80cm)
Driving systems
351
! When parking, pay particular attention to objects above or below the sensors, such as flower pots or trailer drawbars. PARKTRONIC does not detect such objects when they are in the immediate vicinity of the vehicle. You could damage the vehicle or the objects.
The sensors may not detect snow and other objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car wash, the compressed-air brakes on a truck or a pneumatic drill could cause PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on uneven terrain.
Minimum distance
Center
Corners
approximately 8in (approximately 20cm)
approximately 8in (approximately 20cm)
If there is an obstacle within this range, the relevant warning displays light up and a warning tone sounds. If the distance falls below the minimum, the distance may no longer be shown.
Warning displays
The warning displays show the distance between the sensors and the obstacle. The warning display for the front area is in the instrument cluster. The warning display for the rear area is located on the headliner in the rear compartment.
352 Driving systems
hear a continuous warning. This indicates that you have now reached the minimum distance.
Deactivating/activating PARKTRONIC
: To deactivate/activate PARKTRONIC
; Indicator lamp
If indicator lamp ; lights up, PARKTRONIC is deactivated.
i PARKTRONIC is automatically activated when you turn the SmartKey to position 2
in the ignition lock.Warning display for the front area : Segments on the left-hand side of the
vehicle
; Segments on the right-hand side of the
vehicle
= Segments showing operational readiness
The warning display for each side of the vehicle is divided into five yellow and two red segments. PARKTRONIC is operational if yellow segments showing operational readiness = light up.
The selected transmission position determines which warning display is active when the engine is running.
Transmission
Warning display
position
Front area activated
Rear and front areas activated
If the electric parking brake is engaged: no areas are activated
If the electric parking brake is released: rear and front areas are activated
No areas activated
One or more segments light up as the vehicle approaches an obstacle, depending on the vehicle's distance from the obstacle.
When the first red segment lights up, you hear an intermittent warning for about two seconds. From the second red segment, you
Problems with PARKTRONIC
Problem
Possible causes/consequences and M Solutions
Driving systems
353
Only the red segments in the PARKTRONIC warning displays are lit. You also hear a warning tone for approximately two seconds.
PARKTRONIC is deactivated after approximately 20 seconds, and the indicator lamp in the PARKTRONIC button lights up.
Only the red segments in the PARKTRONIC warning displays are lit. PARKTRONIC is deactivated after approximately 20 seconds.
PARKTRONIC has malfunctioned and has switched off.
X If problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
The PARKTRONIC sensors are dirty or there is interference.
X Clean the PARKTRONIC sensors (Y page 474).
X Switch the ignition back on.
The problem may be caused by an external source of radio or ultrasound waves.
X See if PARKTRONIC functions in a different location.
Parking Guidance
Important safety notes
Parking Guidance is an electronic parking aid with ultrasound. Ultrasound is used to measure the road on both sides of the vehicle. A suitable parking space is indicated by the parking symbol. You receive steering instructions when parking. You may also use PARKTRONIC (Y page 350).
G WARNING Parking Guidance is merely an aid and may display parking spaces that are not suitable for parking, for example:
Rno-parking areas
Rparking spaces with unsuitable surfaces
(road surface)
Rdriveways
Rentrances and exits
Parking Guidance detects and measures potential parking spaces while driving past. Changes to the parking space after this point are not taken into account, for example if the vehicle in front of or behind the parking space changes position or objects in the parking space are moved.
Even when using Parking Guidance, you are still responsible for driving carefully. If you rely on Parking Guidance alone, you could cause an accident and injure yourself and others.
Safety always remains your responsibility and you must continue paying careful attention to your immediate surroundings when parking and maneuvering.
354 Driving systems
G WARNING Objects located above the height range of Parking Guidance will not be detected when the parking space is measured. These objects are not taken into account when the parking procedure is calculated, e.g. overhanging loads, tail sections or loading ramps of goods vehicles. Under some circumstances, Parking Guidance might therefore issue steering instructions too soon. This may lead to a collision. For this reason, you should avoid using Parking Guidance in such situations.
G WARNING Make sure that no persons or animals are in the maneuvering range. Otherwise, they could be injured.
! Pay particular attention to low objects or
objects with flat surfaces, such as trailer drawbars, posts, cross beams and curbs. These types of objects cannot be detected by Parking Guidance and may damage the vehicle.
When PARKTRONIC is deactivated, Parking Guidance is also unavailable.
Use Parking Guidance for parking spaces:
Rthat are parallel to the direction of travel
Rthat are on straight roads, not bends
Rthat are on the same level as the road, i.e. not on the pavement, for example. Parking Guidance may not detect flat curbs
Parking tips:
Ron narrow roads, drive past the parking
space as close as possible.
Rparking spaces that are littered, overgrown
or partially occupied by trailer drawbars might be identified incorrectly or not at all.
Rsnowfall or heavy rain may lead to a parking
space being measured inaccurately.
Rpay attention to the PARKTRONIC
(Y page 351) warning messages during the parking procedure.
Rwhen transporting a load which protrudes from your vehicle, you must not use Parking Guidance.
Rnever use Parking Guidance with snow
chains or an emergency spare wheel mounted.
Rmake sure that the tire pressures are
always correct. This has a direct effect on the steering instructions.
Rthe way your vehicle is positioned in the parking space after parking is dependent on various factors. These include the position and shape of the vehicles parked in front and behind it and the conditions of the location. In some cases, Parking Guidance may guide you too far or not far enough into a parking space. In some cases, it may also lead you across or onto the curb. If necessary, cancel the parking procedure with Parking Guidance.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at a sharp angle. Otherwise, you may damage the wheels or tires.
Detecting a parking space
: Detected parking space on the left
; Parking symbol
= Detected parking space on the right
Parking Guidance is automatically activated when you drive forwards. The system is operational at speeds of up to approximately 22 mph (35 km/h). While in operation, the system independently locates and measures parking spaces on both sides of the vehicle. At speeds below 19 mph (30km/h), you see white parking symbol ; in the instrument cluster as a status indicator. Parking
Driving systems
355
X Stop the vehicle when the blue parking
space symbol shows the desired parking space in the instrument cluster.
X Engage reverse gear.
The multifunction display shows the message: Check surroundings Confirm with OK.
X Press a on the multifunction steering
wheel to confirm. The display in the instrument cluster switches to Parking Guidance.
: Green lane
; White bracket marking the target position
X Depending on the distance, you may have
to reverse along the lane towards the parking space. This is indicated by green lane :. Continue backing up until you hear a tone. Stop; the parking position has been reached and is marked by white bracket ; with an arrow for the target position.
Guidance only shows parking spaces on the passenger side in the default setting. Parking spaces on the driver's side are displayed as soon as the turn signal on the driver's side is activated. To park on the driver's side, you must leave the driver's side turn signal switched on until you have engaged reverse gear. If a parking space is detected, parking symbol ; changes to blue. Additionally, an arrow pointing to the right = or left : is shown.
Parking Guidance will only detect parking spaces:
Rthat are closed in at the back
Rthat are parallel to the direction of travel
Rthat are at least 5 ft (1.5 m) wide
Rthat are at least 4.3 ft (1.3 m) longer than
your vehicle.
A parking space is displayed while you are driving past it, and until you are approximately 50 ft (15 m) away from it.
Parking
The following instructions refer to parking in a space on the front-passenger side. To park in a space on the driver's side, mirror the instructions.
G WARNING The Parking Guidance is only an aid and may not detect all obstacles. The Parking Guidance does not relieve you of the responsibility to pay attention. You are always responsible for safety and must continue to pay attention to your immediate surroundings when parking and maneuvering. Otherwise, you could endanger yourself and others.
356 Driving systems
Countersteering
Steering tips : Red lane indicating the route the vehicle
will take with the steering wheel in its current position
; Yellow lane indicating the route the
vehicle will take when you have turned the steering wheel in the required direction
X Turn the steering wheel while the vehicle is
stationary until red lane : and yellow lane ; overlap. Lane ; is then marked in green and you hear a tone. If the parking space is inside the area displayed, the end of the green lane is marked with a white bracket and an arrow showing the target position.
Backing up into a parking space
: Red lane indicating the route the vehicle
will take with the steering wheel in its current position
; Yellow lane indicating the route the
vehicle will take when you have turned the steering wheel in the required direction
X Turn the steering wheel while the vehicle is
stationary until red lane : and yellow lane ; overlap. Lane ; is then marked in green and you hear a tone. A white arrow and white bracket are shown to indicate the target position.
Driving to the final position
: Lane turns green when the steering wheel
is turned in the correct direction
X Keep the steering wheel in that position
and reverse carefully.
X Stop as soon as you hear a tone.
The vehicle has reached the position in which you need to countersteer.
: Lane turns green when the steering wheel
is turned in the correct direction
X Keep the steering wheel turned in that
direction and reverse carefully until you have reached the final position. The Parking Guidance finished message appears in the multifunction display and a tone sounds.
Driving systems
357
The rear view camera is located in the handle strip of the trunk lid.
Final position
Depending on the size of the parking space, you may now be in an angled position in the parking space. If possible, Parking Guidance will guide you as far back as possible towards the rear limit of the parking space.
X Maneuver to the final position if necessary.
X Always observe the warning messages
displayed by PARKTRONIC (Y page 351).
Canceling Parking Guidance
X Press the PARKTRONIC button on the
dashboard (Y page 352). Parking Guidance is canceled immediately and PARKTRONIC is deactivated.
Parking Guidance is canceled automatically if it is no longer possible to guide you into the parking space, or if a malfunction occurs.
The parking space symbol goes out and a warning tone sounds. The Parking Guidance Canceled message appears in the multifunction display.
Rear view camera
Important safety notes
The rear view camera is an optical parking aid. It shows the area behind your vehicle in the COMAND display.
G WARNING Make sure that no persons or animals are in the maneuvering range. Otherwise, they could be injured.
: Rear view camera
View through the camera
The area behind the vehicle is displayed as a mirror image, as in the rear view mirror.
G WARNING The rear view camera is only an aid and may display obstacles
Rfrom a distorted perspective
Rinaccurately
Rmay not display obstacles at all
The rear view camera does not relieve you of the responsibility to be cautious. Take care and pay careful attention. The rear view camera may not show objects which are
Rvery close to the rear bumper
Runder the rear bumper
Rabove the trunk handle
You are responsible for safety at all times and must continue to pay attention to the immediate surroundings when parking and maneuvering. This includes the area behind, in front of, and beside the vehicle. Otherwise you could endanger yourself and/or others.
G WARNING The rear view camera will not function or will not fully function if:
358 Driving systems
Rthe trunk lid is open
Rit is raining or snowing strongly or if it is
foggy
Rit is night or if you are parking/
maneuvering your vehicle in a very dark area
Ra very bright white light is affecting the
camera
Rthe immediate vicinity is illuminated with
fluorescent light (the display of the COMAND system can flicker)
Rtemperature changes abruptly, for example
if you drive out of the cold into a heated garage (condensation on the lens)
Rthe camera lens is dirty or covered
Rthe rear of your vehicle is damaged
In this case, have the position and the setting of the camera checked at a specialist workshop. Mercedes-Benz recommends that you consult a Mercedes- Benz Center for this purpose.
Do not use the rear view camera in these situations. You could otherwise injure yourself and other people and/or cause damage - including damage to your vehicle - while parking/maneuvering.
Activating the rear view camera
X Make sure that the SmartKey is in position
2 in the ignition lock.
X Engage reverse gear.
The area behind the vehicle is shown in the COMAND display with guide lines.
Guide lines in the COMAND display
G WARNING Use of rear view camera can be dangerous if you are color-blind or have impaired color vision.
Only use rear view camera if you can see and distinguish all colored guidelines shown by rear view camera on the COMAND system display.
G WARNING Please note that objects that do not touch the ground may appear to be further away than they actually are, for example:
Rthe bumper of a vehicle parked behind you
Rthe trailer drawbar
Rthe ball coupling of a trailer tow hitch
Rthe rear end of a truck
Ra slanted post
In such cases, you should not use the guide lines to judge the distance. You may misjudge the distance, which increases the risk of impacting the objects.
Even if the object you approach is directly on the ground, do not approach the object any closer than the red guide line.
Example: information in the COMAND display
Guide lines ; and = show the approximate distance to the rear area. Yellow guide line ; indicates a distance of approximately 3 ft (1 m) and red guide line = indicates a distance of approximately 10 in (0.25 m). The distances only apply to objects that are at ground level. Blue guide lines : depict the width required for the vehicle. They are used to align the vehicle with the edge of the road, e.g. the curb.
ATTENTION ASSIST
Important safety notes
ATTENTION ASSIST helps you during long, monotonous journeys such as on freeways and interstate highways. It is active in the range between 50 mph (80 km/h) and 112 mph (180 km/h).
If ATTENTION ASSIST detects typical indicators of fatigue or increasing lapses in concentration on the part of the driver, it suggests you take a break.
G WARNING ATTENTION ASSIST is only an aid and may detect your tiredness or lapses in concentration too late or not at all. It is not a substitute for a well-rested and attentive driver.
Fatigue may cause you to recognize hazardous situations too late, misjudge a situation or react more slowly. For this reason, make sure you feel rested before you begin driving and during your journey. Make sure that you take regular breaks in time, particularly on long journeys. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
ATTENTION ASSIST assesses your level of fatigue or lapses in concentration by taking the following criteria into account:
Ryour personal driving style, e.g. steering
characteristics
Rdriving conditions, e.g. time, driving time
The functionality of ATTENTION ASSIST is restricted and warnings may be delayed or not occur at all:
Rif the road condition is poor, e.g. if the
surface is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style
with high cornering speeds or high rates of acceleration
Driving systems
359
Rif you are predominantly driving slower than 50 mph (80 km/h) or faster than 112 mph (180 km/h)
Rif you are currently using COMAND or
making a telephone call with it
Rif the time has been set incorrectly
Rin active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display
X Activate ATTENTION ASSIST using the on-
board computer (Y page 386). Symbol : appears in the multifunction display.
If ATTENTION ASSIST is active, you will be warned no sooner than 20 minutes after your journey has begun. You will then hear an intermittent warning tone twice, and the Attention Assist: Drowsiness Detected message appears in the multifunction display.
X If necessary, take a break. X Press a to confirm the message.
On long journeys, take regular breaks in good time to allow yourself to rest properly. If you do not take a break, you will be warned again after 15 minutes at the earliest. The precondition for this is that ATTENTION ASSIST still detects typical indicators of fatigue or increasing lapses in concentration.
360 Driving systems
ATTENTION ASSIST is reset when you continue your journey and starts assessing your tiredness again if:
Plus display in the multifunction display. This is also the case if you cant switch on the high- beam headlamps due to oncoming traffic.
G WARNING The Night View Assist Plus cannot record objects immediately in front of or next to the vehicle. When maneuvering, continue to look through the windshield. Make sure no persons or animals are in the area in which you are maneuvering. You could otherwise injure them.
i Infrared light is not visible to the human
eye and therefore does not glare. Night View Assist Plus can therefore remain switched on even if there is oncoming traffic.
: Night View Assist Plus camera
Switching on Night View Assist Plus
Ryou switch off the engine.
Ryou take off your seat belt and open the
driver's door, e.g. for a change of drivers or to take a break.
Night View Assist Plus
Important safety notes
In addition to the illumination provided by the normal headlamps, Night View Assist Plus uses infrared light to illuminate the road. The Night View Assist Plus camera picks up the infrared light and shows a black-and-white image in the multifunction display. The image shown in the multifunction display corresponds to a road lit up by high-beam headlamps. This enables you to see the road's course and any obstacles in good time. If pedestrian recognition is activated, pedestrians recognized by the system are highlighted in the Night View Assist Plus display.
G WARNING Night View Assist Plus is only an aid designed to assist driving. It is not a substitute for attentive driving. Do not rely solely on the Night View Assist Plus display. Continue to look through the windshield. You are responsible for safety and must drive in accordance with traffic conditions. You could otherwise put yourself and others in danger.
The system may be impaired or unavailable if:
Rthere is poor visibility, e.g. due to snow,
rain, fog or heavy spray.
Rthe windshield is dirty, fogged up or
covered, for instance by a sticker, in the vicinity of the camera.
Ryou are driving on bends, uphill gradients
or downhill gradients.
Light from the headlamps of oncoming vehicles does not affect the Night View Assist
You can only activate Night View Assist Plus if:
Rthe SmartKey is in position 2 in the ignition
lock.
Rit is dark. Rthe light switch is in the c or L
position.
Rreverse gear has not been engaged. X Press button :.
The Night View Assist Plus display appears in the multifunction display.
: Night View Assist Plus display
; Pedestrian recognized
= Framing
? Symbol for active pedestrian recognition
A Speed display
i The infrared lamps switch on
automatically from aspeed of about 6 mph (10 km/h). This means that you do not have the full visual range while the vehicle is stationary and cant check whether Night View Assist Plus is working.
When you activate Night View Assist Plus, speed display A in the multifunction display changes. Speed display A is shown as a bar at the bottom edge of the multifunction display. This line is no longer available for basic menus. You have to deactivate Night View Assist Plus if you want to change a setting using the buttons on the multifunction steering wheel.
Driving systems
361
Pedestrian recognition
G WARNING Pedestrian recognition may be impaired or inoperative if:
Rpedestrians are partially or entirely
obscured by objects, e.g. parked vehicles.
Rthe silhouette of the pedestrian in the Night
View Assist Plus display is incomplete or interrupted, e.g. by powerful light reflections.
Rpedestrians do not contrast with the
surroundings.
Rpedestrians are not standing upright, for example, if they are sitting, crouching or lying down.
i Animals are not recognized by pedestrian
recognition.
Night View Assist Plus is able to recognize pedestrians by typical characteristics, e.g. a silhouette in the shape of a person.
Pedestrian recognition is then switched on automatically if:
RNight View Assist Plus is activated.
Ryou are driving faster than 6 mph
(10 km/h).
Rthe surroundings are dark, e.g. when driving outside built-up areas without street lighting.
If pedestrian recognition is active, symbol ? appears. If pedestrians are recognized, they are framed = and thereby highlighted. If the pedestrian recognition system has brought a pedestrian to your attention, look through the windshield to evaluate the situation. The actual distance to objects and pedestrians cant be gauged accurately by looking at a screen.
It may be the case that objects are highlighted as well as pedestrians.
362 Driving systems
Setting the brightness of the
multifunction display
X To make brighter or dimmer: make sure
that Night View Assist Plus is activated.
X Turn control : counterclockwise or
clockwise.
Fogged up or dirty windshield
If the windshield in front of the camera is fogged up or dirty on the inside or outside, the Night View Assist Plus display is affected.
G WARNING Always remember that you must concentrate primarily on driving the vehicle. A driver's attention to the road must always be his/her primary focus when driving. For your safety and the safety of others: stop the vehicle before attempting to clean fogged up windows or the windshield area in front of the Night View Assist Plus camera.
Please remember that when your vehicle is traveling at a speed of only 30 mph (approximately 50 km/h) it covers a distance of 44 ft (approximately 14 m) per second.
X To defrost: check the automatic air
conditioning settings (Y page 300) and fold down the camera cover (Y page 475).
X To defrost the inside of the windshield: fold down the camera cover (Y page 475) and clean the windshield (Y page 473).
Driving systems
363
Problems with Night View Assist Plus
Problem
Possible causes/consequences and M Solutions
The picture quality of Night View Assist Plus has deteriorated.
The windshield wipers are smearing the windshield.
X Replace the wiper blades (Y page 289).
The windshield is smeared after the vehicle has been cleaned in a car wash.
X Clean the windshield (Y page 473).
There is windshield chip damage in the camera's field of vision.
X Replace the windshield.
The windshield is fogged up on the inside.
X Defrost the windshield (Y page 300).
The windshield is iced up.
X De-ice the windshield (Y page 300).
There is dirt on the inside of the windshield.
X Clean the inside of the windshield (Y page 473).
Driving Assistance package
General notes
i The Driving Assistance package is only
available on vehicles with HYBRID.
The Driving Assistance package consists of DISTRONIC PLUS (Y page 336), Blind Spot Assist (Y page 363) and Lane Keeping Assist (Y page 365).
Blind Spot Assist
Important safety notes
Blind Spot Assist uses a radar sensor system to monitor the areas on both sides of your vehicle. It supports you from speeds of approximately 20 mph (30 km/h). A warning display in the exterior mirrors draws your attention to vehicles detected in the monitored area. If you then switch on the corresponding turn signal to change lane, you will also receive an optical and audible collision warning. Blind Spot Assist uses
sensors in the rear bumper for monitoring purposes.
G WARNING Blind Spot Assist is only an aid designed to assist driving. It may fail to detect some vehicles and is no substitute for attentive driving.
Blind Spot Assist cannot detect road and traffic conditions. It may fail to detect narrow vehicles, such as motorcycles or bicycles, or may only detect them too late.
Monitoring may be affected by dirty sensors, strong spray or poor visibility caused by snow, rain or mist, for example. In this case, vehicles are detected late or not at all.
Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
i USA only:
364 Driving systems
This device has been approved by the FCC as a “Vehicular Radar System”. The radar sensor is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
For Blind Spot Assist to assist you when driving, the radar sensor system must be activated (Y page 389) and operational.
Monitoring range of the sensors
Active Blind Spot Assist monitors the area up to 10 ft (3 m) behind your vehicle and directly next to your vehicle, as shown in the diagram.
This may be the case if vehicles are driving at that edge of their lane which is furthest away from your vehicle.
Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
If the lanes are narrow, vehicles driving in the lane beyond the lane next to your vehicle may be indicated, especially if the vehicles are not driving in the middle of their lane. This may be the case if there are vehicles driving at the inner edge of their lanes.
Due to the nature of the system:
Rwarnings may be issued in error when
driving close to crash barriers or similar solid lane borders.
Rwarnings may be interrupted when driving
alongside long vehicles, for example trucks, for a prolonged time.
The two radar sensors for Blind Spot Assist are integrated into the sides of the rear bumper. Make sure that the bumper is free from dirt, ice or slush around the sensors. The sensors must not be covered, for example by cycle racks or overhanging loads. Following a severe impact or in the event of damage to the bumpers, have the function of the sensors checked at a qualified specialist workshop. Blind Spot Assist may otherwise not work properly.
Indicator and warning display
G WARNING Blind Spot Assist monitors certain areas in the immediate vicinity of your vehicle. Vehicles that approach and drive past at high speeds are not detected. There is no display and no warning.
If the lanes are very wide, it may not be possible to monitor the complete width of the neighboring lane. For this reason, vehicles in the next lane may not be detected, especially if they are driving in a staggered formation.
: Yellow indicator lamp/red warning lamp
When Blind Spot Assist is activated, indicator lamp : in the exterior mirrors lights up yellow at speeds of up to 20 mph(30 km/h). At speeds above 20 mph (30 km/h), the indicator lamp goes out and Blind Spot Assist is operational.
If a vehicle is detected within the monitoring range of Blind Spot Assist at speeds above 20 mph (30km/h), warning lamp : on the corresponding side lights up red. This warning is always emitted when a vehicle enters the blind spot monitoring range from behind or from the side. When you overtake a vehicle, the warning only occurs if the difference in speed is less than 7 mph (12km/h).
The yellow indicator lamp goes out if reverse gear is engaged. In this event, Blind Spot Assist is no longer active.
The brightness of the indicator/warning lamps is adjusted automatically according to the ambient light.
G WARNING Blind Spot Assist is not active at speeds below approximately 20 mph (30 km/h). The indicator lamps in the exterior mirrors are yellow. Vehicles in the monitoring range are then not indicated.
Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
Collision warning
If a vehicle is detected in the monitoring range of Blind Spot Assist and you switch on the corresponding turn signal, a double warning tone sounds. Red warning lamp : flashes. If the turn signal remains on, detected vehicles are indicated by the flashing of red warning lamp :. There are no further warning tones.
Switching on Blind Spot Assist
X Make sure that the radar sensor system
(Y page 389) and Blind Spot Assist
Driving systems
365
(Y page 387) are activated in the on-board computer.
X Turn the SmartKey to position 2 in the
ignition lock. Warning lamps : light up red in the exterior mirrors for approximately 1.5 seconds and then turn yellow.
Lane Keeping Assist
Important safety notes
Lane Keeping Assist monitors the area in front of your vehicle by means of a camera at the top of the windshield. Lane Keeping Assist detects lane markings on the road and warns you before you leave your lane unintentionally.
: Lane Keeping Assist camera
If you have chosen the Display unit Speed-/odometer(Y page 388) function in the on-board computer and select km as the unit of measurement, Lane Keeping Assist is active from speeds of 60 km/h. If the miles display unit is selected, the assistance range begins at 40 mph.
G WARNING Lane Keeping Assist does not keep your vehicle in its lane. It is only an aid and may detect the lane markings on the road incorrectly or not at all.
366 Driving systems
The system may be impaired or may not function if:
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on a
Rthere is poor visibility, e.g. due to
bend.
insufficient illumination of the road, or due to snow, rain, fog or spray.
Rthere is glare, e.g. from oncoming traffic, the sun, or reflection from other vehicles.
Rthe windshield is dirty, fogged up or
covered, for instance by a sticker, in the vicinity of the camera.
Rseveral or no lane markings for a single lane
Rthe road has very wide lanes, e.g. a
freeway.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend.
No warning vibration occurs if:
are present.
Ryou clearly and actively steer, brake or
Rthe lane markings are worn away, dark or
accelerate.
covered up, e.g. by dirt or snow.
Ryou cut the corner on a sharp bend.
Rthe distance to the vehicle in front is too
Ra driving safety system intervenes, e.g.
small and the lane markings thus cannot be detected.
Rthe lane markings on the road are unclear,
e.g. near roadworks.
Rthe lane markings change quickly, e.g. lanes branch off, cross one another or merge.
Rthe road is narrow and winding.
Lane Keeping Assist cannot detect road and traffic conditions. It is not a substitute for attentive driving. You are responsible for the vehicle's speed, braking in good time, and steering correctly. Always adapt your driving style to suit the prevailing road and weather conditions. Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
A warning may be given if a front wheel passes over a lane marking. It will warn you by means of intermittent vibration in the steering wheel for up to 1.5 seconds.
In order that you are warned only when necessary and in good time if you cross the lane marking, the system recognizes certain conditions and warns you accordingly.
ABS, BAS or ESP®.
Ryou switch on the turn signals. In this event, the warnings are suppressed for a certain period of time.
Switching on Lane Keeping Assist
X Activate Lane Keeping Assist using the on-
board computer (Y page 387). Symbol : appears in the multifunction display.
If your speed exceeds 40 mph (60 km/h) and lane markings are detected, symbol : is highlighted in green. Lane Keeping Assist is ready for use.
Active Driving Assistance package
General notes
i The Active Driving Assistance package is only available on vehicles without HYBRID.
The Active Driving Assistance package consists of DISTRONIC PLUS (Y page 336),
Driving systems
367
Active Blind Spot Assist (Y page 367) and Active Lane Keeping Assist (Y page 369).
cause an accident and injure yourself and others.
Active Blind Spot Assist
i USA only:
Important safety notes
Active Blind Spot Assist uses a radar sensor system to monitor the side areas of your vehicle which are in back of the driver. A warning display in the exterior mirrors draws your attention to vehicles detected in the monitored area. If you then switch on the corresponding turn signal to change lane, you will also receive an optical and audible collision warning. If a risk of lateral collision is detected, corrective braking may help you avoid a collision. To support the course- correcting brake application, Active Blind Spot Assist also uses the forward-facing radar sensor system. Active Blind Spot Assist supports you from a speed of approximately 20 mph (30 km/h).
G WARNING Active Blind Spot Assist is only an aid, and may detect vehicles/obstacles incorrectly or not at all.
The system may be impaired or may not function if:
Rthere is poor visibility, e.g. due to snow,
rain, fog or spray.
Rthe rear and/or front sensors are dirty.
Active Blind Spot Assist may not detect narrow vehicles, such as motorcycles or bicycles, or may only detect them too late. It cannot detect vehicles that are overtaken at a small distance and then enter the blind spot area.
Active Blind Spot Assist cannot detect road and traffic conditions. It is not a substitute for attentive driving. You are responsible for the vehicle's speed, braking in good time, and steering correctly. Always adapt your driving style to suit the prevailing road and weather conditions. Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time,
This device has been approved by the FCC as a “Vehicular Radar System”. The radar sensor is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
For Active Blind Spot Assist to assist you when driving, the radar sensor system must be activated (Y page 389) and operational.
Monitoring area
Active Blind Spot Assist monitors the area up to 10 ft (3 m) behind your vehicle and directly next to your vehicle, as shown in the diagram. For this purpose, Active Blind Spot Assist uses radar sensors in the rear bumper.
G WARNING Active Blind Spot Assist monitors certain areas in the immediate vicinity of your vehicle. Vehicles that approach and drive past at high speeds are not detected. No visual nor
368 Driving systems
audible warnings are emitted and the system does not brake the vehicle to correct your course.
If the lanes are very wide, it may not be possible to monitor the complete width of the neighboring lane. For this reason, vehicles in the next lane may not be detected, especially if they are driving in a staggered formation. This may be the case if vehicles are driving at that edge of their lane which is furthest away from your vehicle.
Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
If the lanes are narrow, vehicles driving in the lane beyond the lane next to your vehicle may be indicated, especially if the vehicles are not driving in the middle of their lane. This may be the case if there are vehicles driving at the inner edge of their lanes.
Due to the nature of the system:
Rwarnings may be issued in error when
driving close to crash barriers or similar solid lane borders.
Rwarnings may be interrupted when driving
alongside long vehicles, for example trucks, for a prolonged time.
Two Active Blind Spot Assist radar sensors are integrated into the front and rear bumpers respectively. An additional radar sensor is located behind the cover in the radiator grill. Make sure that the sensors and areas around them are free of dirt, ice or slush. The rear sensors must not be covered, for example by cycle racks or overhanging cargo. Following a severe impact or in the event of damage to the bumpers, have the function of the sensors checked at a qualified specialist workshop. Blind Spot Assist may otherwise not work properly.
Indicator and warning display
: Yellow indicator lamp/red warning lamp
When Active Blind Spot Assist is activated, indicator lamp : in the exterior mirrors lights up yellow at speeds of up to 20 mph(30 km/h). At speeds above 20 mph (30km/h), the indicator lamp goes out and Active Blind Spot Assist is operational.
If a vehicle is detected within the monitoring range of Blind Spot Assist at speeds above 20 mph (30km/h), warning lamp : on the corresponding side lights up red. This warning is always emitted when a vehicle enters the blind spot monitoring range from behind or from the side. When you overtake a vehicle, the warning only occurs if the difference in speed is less than 7 mph (12km/h).
The yellow indicator lamp goes out if reverse gear is engaged. In this event, Active Blind Spot Assist is no longer active.
The brightness of the indicator/warning lamps is adjusted automatically according to the ambient light.
G WARNING Active Blind Spot Assist is not active at speeds below 20 mph (30km/h). The indicator lamps in the exterior mirrors are yellow. Vehicles in the monitoring range are then not indicated.
Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
Visual and audible collision warnings
If a vehicle is detected in the side monitoring range and you switch on the respective turn signals, you will receive a collision warning. You will hear adouble warning tone and red warning lamp : flashes. If the turn signal remains on, vehicles detected are indicated by the flashing of red warning lamp :. There are no further warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a lateral collision in the monitoring range, a course-correcting brake application is carried out. This is meant to assist you in avoiding a collision.
The course-correcting brake application is available in the speed range between 20 mph (30 km/h) and120 mph (200km/h).
If a course-correcting brake application occurs, red warning lamp : flashes in the exterior mirror and the following is shown in the multifunction display, for example:
G WARNING Active Blind Spot Assist is only an aid designed to assist driving. It is not a substitute for attentive driving. In some cases, the course-correcting brake application is not sufficient to avoid a collision. In such a case, you must steer, brake or accelerate.
In very rare cases, the system may erroneously detect a danger of collision in the area of crash barriers or similar lane borders and apply the brakes. Active Blind Spot Assist does not detect all traffic situations and road users. Always make sure that there is sufficient distance on the side for other traffic or obstacles. An inappropriate brake application may be interrupted at any time if
Driving systems
369
you steer slightly in the opposite direction or accelerate.
You are responsible for driving at appropriate speeds, braking in good time, and steering correctly. Always adapt your driving style to suit the prevailing road and weather conditions. Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
There will be either no or only a weak course- correcting brake application if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehicle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g.
ESP® or PRE-SAFE® Brake.
RESP® is switched off.
Ra loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
X Make sure that the radar sensor system
(Y page 389) and Active Blind Spot Assist (Y page 387) are activated in the on-board computer.
X Turn the SmartKey to position 2 in the
ignition lock. Warning lamps : light up red in the exterior mirrors for approximately 1.5 seconds and then turn yellow.
Active Lane Keeping Assist
Important safety notes
Active Lane Keeping Assist monitors the area in front of your vehicle by means of a camera behind the top of the windshield. Active Lane Keeping Assist detects lane markings on the
370 Driving systems
road and warns you before you leave your lane unintentionally. If you do not react to the warning, a lane-correcting application of the brakes can bring the vehicle back into the original lane.
: Active Lane Keeping Assist camera
If you have selected the Display Unit Speed-/Odometer(Y page 388) function in the on-board computer and select km as the unit of measurement, Active Lane Keeping Assist is active from speeds of 60 km/h. If the mph display unit is selected, the assistance range begins at 40 mph.
G WARNING Active Lane Keeping Assist does not keep your vehicle in its lane. It is only an aid and may detect the lane markings on the road incorrectly or not at all.
The system may be impaired or may not function if:
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be detected.
Rthe lane markings on the road are unclear,
e.g. near roadworks.
Rthe lane markings change quickly, e.g. lanes branch off, cross one another or merge.
Rthe road is narrow and winding.
Active Lane Keeping Assist cannot detect road and traffic conditions. It is not a substitute for attentive driving. You are responsible for the vehicle's speed, braking in good time, and steering correctly. Always adapt your driving style to suit the prevailing road and weather conditions. Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
Warning vibration in the steering wheel
A warning may be given if a front wheel passes over a lane marking. It will warn you by means of intermittent vibration in the steering wheel for up to 1.5 seconds.
In order that you are warned only when necessary and in good time if you cross the lane marking, the system recognizes certain conditions and warns you accordingly.
The warning vibration occurs earlier if:
Rseveral or no lane markings for a single lane
Ryou approach the outer lane marking on a
are present.
bend.
Rthere is poor visibility, e.g. due to
insufficient illumination of the road, or due to snow, rain, fog or spray.
Rthere is glare, e.g. from oncoming traffic, the sun, or reflection from other vehicles.
Rthe windshield is dirty, fogged up or
covered, for instance by a sticker, in the vicinity of the camera.
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
Rthe road has very wide lanes, e.g. a
freeway.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend.
No warning vibration occurs if:
Ryou clearly and actively steer, brake or
accelerate.
Ryou cut the corner on a sharp bend.
Ra driving safety system intervenes, e.g.
ABS, BAS or ESP®.
Ryou switch on the turn signals. In this event, the warnings are suppressed for a certain period of time.
Lane-correcting brake application
If you leave your lane under certain circumstances the vehicle will brake briefly on one side. This is meant to assist you in bringing the vehicle back to the original lane.
This function is available in the range between 40 mph and 120 mph (60 km/h and 200 km/h).
A lane-correcting brake application can only be made after driving over a solid, recognizable lane marking. Before this, a warning must be given by means of intermittent vibration in the steering wheel. In addition, a lane with lane markings on both sides must be recognized. The brake application also slightly reduces vehicle speed.
If a lane-correcting brake application occurs, the following, for example, appears in the multifunction display:
i A further lane-correcting brake
application can only occur after your vehicle has returned to the original lane.
G WARNING Active Lane Keeping Assist does not keep your vehicle in its lane. It is only an aid designed to assist driving. It is not a substitute for attentive driving. In some cases, the lane- correcting brake application is not sufficient to bring your vehicle back to the original lane. In such cases, you must steer the vehicle
Driving systems
371
yourself to ensure that it does not leave the lane.
Active Lane Keeping Assist does not detect road and traffic conditions. Always make sure that there is sufficient distance to the side for other traffic or obstacles. In rare cases, unclear markings or particular structures on the roadway can be recognized as solid lane markings. An inappropriate brake application, e.g. after intentionally driving over a solid lane marking, may be interrupted at any time by steering slightly in the opposite direction.
Active Lane Keeping Assist cannot take weather conditions into account.
You are responsible for the driving at appropriate speeds, braking in good time, and steering correctly. Always adapt your driving style to suit the prevailing road and weather conditions. Always pay attention to traffic conditions and your surroundings. Otherwise, you may fail to recognize dangers in time, cause an accident and injure yourself and others.
No lane-correcting brake application occurs if:
Ryou clearly and actively steer, brake or
accelerate.
Ryou cut the corner on a sharp bend.
Ryou switch on the turn signals.
Ra driving safety system intervenes, e.g. ESP®, PRE-SAFE® Brake or Active Blind Spot Assist.
Ryou have adopted a sporty driving style with
high cornering speeds or high rates of acceleration.
RESP® is switched off.
Rthe transmission is not in position D.
Ra loss of tire pressure or a defective tire has
been detected and displayed.
372 Driving systems
Active Lane Keeping Assist does not detect traffic situations or road users. An inappropriate brake application may be interrupted at any time if you:
Rsteer slightly in the opposite direction.
Ruse a turn signal.
Rclearly brake or accelerate.
A lane-correcting brake application is interrupted automatically if:
Ra driving safety system intervenes, e.g. ESP®, PRE-SAFE® Brake or Active Blind Spot Assist.
Rlane markings can no longer be recognized.
Switching on Active Lane Keeping Assist
X Switch on Active Lane Keeping Assist using
the on-board computer (Y page 387). Symbol : appears in the instrument cluster.
If your speed exceeds 40 mph (60 km/h) and lane markings are detected, symbol : is highlighted in green. Active Lane Keeping Assist is ready for use.
Useful information ............................ 374
Important safety notes .................... 374
Displays and operation .................... 374
Menus and submenus ...................... 377
Display messages ............................. 390
Warning and indicator lamps in the instrument cluster ............................ 426
