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prevents the brakes from overheating and wearing too quickly. If a slower-moving vehicle is detected in front, DISTRONIC PLUS brakes your vehicle. It maintains the preset distance to the vehicle in front. If DISTRONIC PLUS detects that there is a risk of a collision, you will be warned visually and acoustically. DISTRONIC PLUS cannot prevent a collision without your intervention. An intermittent warning tone will then sound and the distance warning lamp will light up in the instrument cluster. Brake immediately in order to increase the distance to the vehicle in front or take evasive action provided it is safe to do so. For DISTRONIC PLUS to assist you when driving, the radar sensor system must be: Ractivated (Y page 199) Roperational DISTRONIC PLUS is automatically deactivated if: Ryou are driving slower than 15 mph
(25 km/h) and there is no longer a vehicle in front or
Rthe vehicle in front is no longer detected If there is no vehicle in front, DISTRONIC PLUS operates in the same way as cruise control in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h). If a vehicle is driving in front of you, it operates in the speed range between 0 mph (0 km/h) and 120 mph (200 km/h). Do not use DISTRONIC PLUS while driving on roads with steep gradients. As DISTRONIC PLUS transmits radar waves, it can resemble the radar detectors of the responsible authorities. You can refer to the relevant chapter in the Operator's Manual if questions are asked about this. i This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation of the device. Removal, tampering, or altering of the device will void any warranties, and is not permitted. 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.
Cruise control lever
: To store the current speed or a higher
speed
; To store the current speed or a lower
speed
= To deactivate DISTRONIC PLUS ? To store the current speed or calling up
the last stored speed
A To set the specified minimum distance
Activating DISTRONIC PLUS; storing, maintaining and calling up a speed Activation conditions To activate DISTRONIC PLUS, all of the following activation conditions must be fulfilled: Rthe engine must be started. It may take up
to two minutes after pulling away before DISTRONIC PLUS is operational.
Rthe electric parking brake must be
released.
RESP® must be active, but not intervening.
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has been detected. It is therefore helpful to have the DISTRONIC PLUS distance display activated in the multifunction display (Y page 194).
X Press the cruise control lever repeatedly up : or down ; until the desired speed is set.
i You can use the cruise control lever to set
the stored speed and the control on the cruise control lever to set the specified minimum distance (Y page 165).
DISTRONIC PLUS displays in the speedometer When DISTRONIC PLUS is activated, one or two segments ; in the set speed range light up. i For design reasons, the speed displayed in the speedometer may differ slightly from the speed set for DISTRONIC PLUS.
If DISTRONIC PLUS detects a vehicle in front, segments ; between speed of the vehicle in front : and stored speed = light up.
Rthe transmission must be in position D. Rthe driver's door must be closed when you shift from P to D or your seat belt must be fastened.
Rthe front-passenger door and rear doors
must be closed.
Rthe vehicle must not skid. Activating To activate while driving: when driving at speeds below 14 mph (20 km/h), you can only activate DISTRONIC PLUS if the vehicle in front has been detected and is shown in the multifunction display. If the vehicle in front is no longer detected and displayed, DISTRONIC PLUS switches off and a tone sounds. X Briefly pull the cruise control level towards
you ?, or press it up : or down ;. DISTRONIC PLUS is selected.
X Press the cruise control lever repeatedly up : or down ; until the desired speed is set.
X Remove your foot from the accelerator
pedal. Your vehicle adapts its speed to that of the vehicle in front, but only up to the desired stored speed. i If you do not fully release the accelerator pedal, the DISTRONIC PLUS Passive message appears in the multifunction display. The set distance to a slower- moving vehicle in front will then not be maintained. You will be driving at the speed you determine by the position of the accelerator pedal.
To activate when driving towards a stationary vehicle: if the vehicle in front is stationary, you can only activate DISTRONIC PLUS if your vehicle is also stationary. X Briefly pull the cruise control level towards
you ?, or press it up : or down ;. DISTRONIC PLUS is selected.
i DISTRONIC PLUS can only be activated at under 14 mph (20 km/h) if a vehicle in front
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vehicle. In this way, the distance you have selected is maintained. If DISTRONIC PLUS detects that there is a risk of a collision, you will be warned visually and acoustically. DISTRONIC PLUS cannot prevent a collision without your intervention. An intermittent warning tone will then sound and the distance warning lamp will light up in the instrument cluster. Brake immediately in order to increase the distance from the vehicle in front, or take evasive action, provided it is safe to do so. If DISTRONIC PLUS detects that the vehicle in front is driving faster, it accelerates your vehicle, but only up to the speed you have stored. Changing lanes If you change to the passing lane, DISTRONIC PLUS supports you when: Ryou are driving faster than 40mph
(60 km/h)
RDISTRONIC PLUS is maintaining the
distance to a vehicle in front
Ryou switch on the appropriate turn signal RDISTRONIC PLUS does not detect a danger
of collision
If these conditions are fulfilled, your vehicle is accelerated. Acceleration will be interrupted if changing lanes takes too long or if the distance between your vehicle and the vehicle in front becomes too small. i When changing lanes, DISTRONIC PLUS
monitors the left lane on left-hand drive vehicles and the right lane on right-hand drive vehicles.
Stopping G WARNING When leaving the vehicle, even if it is braked only by DISTRONIC PLUS, it could roll away if: Rthere is a malfunction in the system or in
the voltage supply.
RDISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a
Distance display with DISTRONIC PLUS activated in the multifunction display : DISTRONIC PLUS activated ; Own vehicle = Specified minimum distance to the
vehicle in front; adjustable ? Vehicle in front, if detected In the Assistance menu (Y page 194) of the on-board computer, you can select the distance display. X Select the Distance Display function using the on-board computer (Y page 194).
i You will see the stored speed for about
five seconds when you activate DISTRONIC PLUS. Driving If you depress the brake, DISTRONIC PLUS is deactivated unless your vehicle is stationary. Pulling away X If the vehicle in front pulls away: remove
your foot from the brake pedal.
X Briefly pull the cruise control lever
(Y page 161) towards you.
or X Accelerate briefly.
Your vehicle pulls away and adapts its speed to that of the vehicle in front.
If there is no vehicle in front, DISTRONIC PLUS operates in the same way as cruise control. If DISTRONIC PLUS detects that the vehicle in front has slowed down, it brakes your
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vehicle occupant or from outside the vehicle.
Rthe electrical system in the engine
compartment, the battery or the fuses have been tampered with.
Rthe battery is disconnected. Rthe accelerator pedal has been depressed,
e.g. by a vehicle occupant. There is a risk of an accident. If you wish to exit the vehicle, always turn off DISTRONIC PLUS and secure the vehicle against rolling away.
Deactivating DISTRONIC PLUS (Y page 165). If DISTRONIC PLUS detects that the vehicle in front is stopping, it brakes your vehicle until it is stationary. Once your vehicle is stationary, it remains stationary and you do not need to depress the brake. i After a time, the electric parking brake
secures the vehicle and relieves the service brake.
i Depending on the specified minimum
distance, your vehicle will come to a standstill at a sufficient distance behind the vehicle in front. The specified minimum distance is set using the control on the cruise control lever.
The electric parking brake automatically secures the vehicle if DISTRONIC PLUS is activated and: Rthe driver's door is open and the driver's
seat belt is unfastened.
Rthe engine is switched off, unless it is automatically switched off by the ECO start/stop function.
Ra system malfunction occurs. Rthe power supply is not sufficient. If a malfunction occurs, then the transmission may be shifted into position P automatically.
Storing the current speed or calling up the last stored speed G WARNING If you call up the stored speed and it differs from the current speed, the vehicle accelerates or decelerates. If you do not know the stored speed, the vehicle could accelerate or brake unexpectedly. There is a risk of an accident. Pay attention to the road and traffic conditions before calling up the stored speed. If you do not know the stored speed, store the desired speed again.
X Briefly pull the cruise control lever
(Y page 161) towards you.
X Remove your foot from the accelerator
pedal. DISTRONIC PLUS is activated. The first time it is activated, the current speed is stored. Otherwise, it sets the vehicle cruise speed to the previously stored value.
Setting a speed Keep in mind that it may take a brief moment until the vehicle has accelerated or braked to the speed set.
: To store the current speed or a higher
speed
; To store the current speed or a lower
speed
X Press the cruise control lever up : for a higher speed or down ; for a lower speed.
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X To adjust the set speed in 1 mph
increments (1 km/h increments): briefly press the cruise control lever up : or down ; to the pressure point. Every time the cruise control lever is pressed up : or down ; the last speed stored is increased or reduced.
X To adjust the set speed in 5 mph
increments (10 km/h increments): briefly press the cruise control lever up : or down ; to the pressure point. Every time the cruise control lever is pressed up : or down ;, the last speed stored is increased or reduced.
i DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal. If you accelerate to overtake, DISTRONIC PLUS adjusts the vehicle's speed to the last speed stored after you have finished overtaking.
Setting the specified minimum distance You can set the specified minimum distance for DISTRONIC PLUS by varying the time span between one and two seconds. With this function, you can set the minimum distance that DISTRONIC PLUS keeps to the vehicle in front, dependent on vehicle speed. You can see this distance in the multifunction display (Y page 163). i Make sure that you maintain the
minimum distance to the vehicle in front as required by law. Adjust the distance to the vehicle in front if necessary.
X To increase: turn control = in
direction ;. DISTRONIC PLUS then maintains a greater distance between your vehicle and the vehicle in front.
X To decrease: turn control = in
direction :. DISTRONIC PLUS then maintains a shorter distance between your vehicle and the vehicle in front.
Deactivating DISTRONIC PLUS
There are several ways to deactivate DISTRONIC PLUS: X Briefly press the cruise control lever
forwards :.
or X Brake, unless the vehicle is stationary. When you deactivate DISTRONIC PLUS, you will see the DISTRONIC PLUS Off message in the multifunction display for approximately five seconds.
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i The last speed stored remains stored until
you switch off the engine.
DISTRONIC PLUS is automatically deactivated if: Ryou engage the electric parking brake or if
the vehicle is automatically secured with the electric parking brake
Ryou are driving slower than 7 mph
(10km/h) and there is no vehicle in front, or if the vehicle in front is no longer detected
RESP® intervenes or you deactivate ESP® Rthe transmission is in the P, R or N position Ryou pull the cruise control lever towards you in order to pull away and the front- passenger door or one of the rear doors is open
Rthe vehicle has skidded If DISTRONIC PLUS is deactivated, you will hear a warning tone. You will see the DISTRONIC PLUS Off message in the multifunction display for approximately five seconds. In the Assistance menu (Y page 194) of the on-board computer, you can select the distance display.
X Select the Distance Display function using the on-board computer (Y page 194).
Tips for driving with DISTRONIC PLUS General notes The following contains descriptions of certain road and traffic conditions in which you must be particularly attentive. In such situations, brake if necessary. DISTRONIC PLUS is then deactivated. Cornering, going into and coming out of a bend
The ability of DISTRONIC PLUS to detect vehicles when cornering is limited. Your vehicle may brake unexpectedly or late. Vehicles traveling on a different line
Distance display when DISTRONIC PLUS is deactivated : Vehicle in front, if detected ; Distance indicator, current distance to
the vehicle in front
= Specified minimum distance to the
vehicle in front; adjustable
? Own vehicle
DISTRONIC PLUS may not detect vehicles traveling on a different line. The distance to the vehicle in front will be too short.
Other vehicles changing lanes
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example, the detected vehicle turns a corner and reveals an obstacle or stationary vehicle, DISTRONIC PLUS will not brake for these. Crossing vehicles
DISTRONIC PLUS has not detected the vehicle cutting in yet. The distance to this vehicle will be too short. Narrow vehicles
DISTRONIC PLUS has not yet detected the vehicle in front on the edge of the road, because of its narrow width. The distance to the vehicle in front will be too short. Obstructions and stationary vehicles
DISTRONIC PLUS does not brake for obstacles or stationary vehicles. If, for
DISTRONIC PLUS may detect vehicles that are crossing your lane by mistake. Activating DISTRONIC PLUS at traffic lights with crossing traffic, for example, could cause your vehicle to pull away unintentionally.
HOLD function Important safety notes G WARNING When leaving the vehicle, it can still roll away despite being braked by the HOLD function if: Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by pressing the accelerator pedal or the brake pedal, e.g. by a vehicle occupant. Rthe electrical system in the engine
compartment, the battery or the fuses have been tampered with.
Rthe battery is disconnected There is a risk of an accident. If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle against rolling away.
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! If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automatically in certain situations. To prevent damage to the vehicle, deactivate DISTRONIC PLUS and the HOLD function in the following or other similar situations: Rwhen towing the vehicle Rin the car wash
Deactivate the HOLD function (Y page 168).
General notes The HOLD function can assist the driver in the following situations: Rwhen pulling away, especially on steep
slopes
Rwhen maneuvering on steep slopes Rwhen waiting in traffic The vehicle is kept stationary without the driver having to depress the brake pedal. The braking effect is canceled and the HOLD function deactivated when you depress the accelerator pedal to pull away.
Activation conditions You can activate the HOLD function if: Rthe vehicle is stationary Rthe engine is running or if it has been automatically switched off by the ECO start/stop function
Rthe driver's door is closed or your seat belt
is fastened
Rthe electric parking brake is released Rthe transmission position D, R or N is engaged while driving a vehicle with an automatic transmission
RDISTRONIC PLUS is deactivated
Activating the HOLD function
X Make sure that the activation conditions
are met.
X Depress the brake pedal. X Quickly depress the brake pedal further
until : appears in the multifunction display. The HOLD function is activated. You can release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function, wait briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically if: Ryou accelerate. On vehicles with automatic transmission: only when the transmission is in position D or R.
Rthe transmission is in position P on vehicles
with automatic transmission.
Ryou depress the brake pedal again with a
certain amount of pressure until : disappears from the multifunction display.
Ryou secure the vehicle using the electric
parking brake.
Ryou activate DISTRONIC PLUS. i After a time, the electric parking brake
secures the vehicle and relieves the service brake.
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The electronic parking brake secures the vehicle automatically if the HOLD function is activated and: Rthe driver's door is open and the driver's
seat belt is unfastened.
Rthe engine is switched off, unless it is automatically switched off by the ECO start/stop function.
Ra system malfunction occurs. Rthe power supply is not sufficient. If a malfunction occurs, then the transmission may be shifted into position P automatically.
PARKTRONIC Important safety notes PARKTRONIC is only an aid. It is not a replacement for your attention to your immediate surroundings. You are always responsible for safe maneuvering, parking and exiting a parking space. When maneuvering, parking or pulling out of a parking space, make sure that there are no persons, animals or objects in the area in which you are maneuvering. ! 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.
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 (18 km/h). It is reactivated at lower speeds. PARKTRONIC monitors the area around your vehicle using six sensors in the front bumper and four sensors in the rear bumper.
Range of the sensors General notes PARKTRONIC does not take objects into consideration that are: Rbelow the detection range, e.g. people,
animals or objects
Rabove the detection range, e.g.
overhanging loads, truck overhangs or loading ramps.
: Sensors in the front bumper, left-hand
side (example)
Side view
170 Driving systems
on the dashboard above the center air vents. The warning display for the rear area is located on the headliner in the rear compartment.
Top view The sensors must be free from dirt, ice or slush. They can otherwise not function correctly. Clean the sensors regularly, taking care not to scratch or damage them (Y page 275). Front sensors Center
Corners
Rear sensors Center
Corners
Approx. 40in (approx. 100cm) Approx. 24in (approx. 60cm)
Approx. 48 in (approx. 120 cm) Approx. 32in (approx. 80cm)
Minimum distance Center Corners
Approx. 8in (approx. 20cm) Approx. 8in (approx. 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 located
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 and the direction in which the vehicle is rolling determine which warning display is active when the engine is running. Transmission position R, N or the vehicle is rolling backwards
Front area activated Rear and front areas activated
Warning display
No areas activated
One or more segments light up as the vehicle approaches an obstacle, depending on the vehicle's distance from the obstacle.
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From the: Rsixth segment onwards, you will hear an
intermittent warning tone for approximately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two seconds. This indicates that you have now reached the minimum distance.
Deactivating/activating PARKTRONIC
: Indicator lamp ; To deactivate/activate PARKTRONIC 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.172 Driving systems
Problems with PARKTRONIC
Problem 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 20seconds.
Possible causes/consequences and M Solutions 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 275). 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.
Active Parking Assist Important safety notes Active Parking Assist is merely an aid. It is not a replacement for your attention to your immediate surroundings. You are always responsible for safe maneuvering, parking and exiting a parking space. When maneuvering, parking or pulling out of a parking space, make sure that there are no persons, animals or objects in the area in which you are maneuvering. G WARNING The vehicle swings out when parking and in doing so could cross into the opposite lane. This could result in a collision with another road user. There is a risk of an accident. Pay attention to other road users when parking. Stop the vehicle if necessary or
cancel the Active Parking Assist parking procedure.
! 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.
Active Parking Assist may possibly indicate parking spaces which are not suitable for parking, for example: Rwhere parking or stopping is prohibited Rin front of driveways or entrances and exits Ron unsuitable surfaces Parking tips: ROn narrow roads, drive as close to the
parking space as possible.
RParking spaces that are littered, overgrown
or partially occupied by trailer drawbars might be identified incorrectly or not at all.
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173
RSnowfall or heavy rain may lead to a parking
space being measured inaccurately.
RPay attention to the PARKTRONIC
(Y page 170) warning messages during the parking procedure.
RYou can intervene in the steering procedure
to correct it at any time. Active Parking Assist will then be canceled.
RWhen transporting a load which protrudes
from your vehicle, you should not use Active Parking Assist.
RNever use Active Parking Assist when snow
chains are installed.
RMake sure that the tire pressures are
always correct. This has a direct influence on the parking characteristics of the vehicle.
General notes Active Parking Assist 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. Active steering intervention can assist you during parking. You may also use PARKTRONIC (Y page 169). When PARKTRONIC is switched off, Active Parking Assist is also unavailable. Use Active Parking Assist 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, e.g.
not on the pavement
Detecting parking spaces Objects located above the height range of Active Parking Assist will not be detected when the parking space is measured. These are not taken into account when the parking procedure is calculated, e.g. overhanging loads, tail sections or loading ramps of goods vehicles. In some circumstances, Active Parking Assist may therefore guide you into the parking space too early.
G WARNING If there are objects above the detection range, Active Parking Assist may turn prematurely. You may cause a collision as a result. There is a risk of an accident. If there are objects above the detection range, stop and deactivate Active Parking Assist.
Active Parking Assist is automatically activated when driving 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. When driving at speeds below 19 mph (30 km/h), you will see the parking symbol as a status indicator in the instrument cluster. By default, Active Parking Assist only displays parking spaces on the front- passenger side. 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. This must remain switched on until you acknowledge the use of Active Parking Assist by pressing the a button on the multifunction steering wheel. When a parking space has been detected, an arrow towards the right or the left also appears.
Example: detected parking space for a vehicle with automatic transmission : Detected parking space on the left ; Parking symbol = Detected parking space on the right
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Active Parking Assist will only detect parking spaces: Rthat are parallel to the direction of travel Rthat are at least 59 in (1.5 m) wide Rthat are at least 51 in (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 G WARNING Active Parking Assist merely aids you by intervening actively in the steering. If you do not brake there is a risk of an accident. Always apply the brakes yourself when maneuvering and parking.
i When PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically during the parking process. You are responsible for braking in good time.
Active Parking Assist does not support you with parking spaces parallel to the direction of travel if: Rthe parking space is on a curb Rthe parking space is apparently blocked,
for example by foliage or grass paving blocks
Rthe range of movement is too small Rthe parking space is bordered by an
obstacle which is not clearly defined such as a tree or a trailer
X Stop the vehicle when the parking space
symbol shows the desired parking space in the instrument cluster. X Shift the transmission to position R. The Start Park Assist? Yes: OK No: % message appears in the multifunction display.
X To cancel the procedure: press the
% button on the multifunction steering wheel or pull away.
or X To park using Active Parking Assist:
press the a button on the multifunction steering wheel. The Park Assist Active Accelerate and Brake Observe Surroundings message appears in the multifunction display.
X Let go of the multifunction steering wheel. X Back up the vehicle, being ready to brake
at all times. Do not exceed a maximum speed of approximately 5 mph (10 km/h) when backing up. Otherwise Active Parking Assist will be canceled.
i In tight parking spaces, you will achieve the best parking results by backing up as far as possible. When doing so, also observe the PARKTRONIC messages.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before. Maneuvering may be required in tight parking spaces. The Park Assist Active Select D Observe Surroundings message appears in the multifunction display. X Shift the transmission to position D while
the vehicle is stationary. Active Parking Assist immediately steers in the other direction. The Park Assist Active Accelerate and Brake Observe Surroundings message appears in the multifunction display.
i You will achieve the best results by waiting for the steering procedure to complete before pulling away.
X Drive forwards and be ready to brake at all
times.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
The Park Assist Active Select R Observe Surroundings message appears in the multifunction display. X Further transmission shifts may be
necessary. As soon as the parking procedure is complete, the Park Assist Finished message appears in the multifunction display. Active Parking Assist is then deactivated. PARKTRONIC is still available.
X Maneuver if necessary. X Always observe the warning messages
displayed by PARKTRONIC (Y page 170).
Parking tips: 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. It may be the case that Active Parking Assist guides you too far into a parking space, or not far enough into it. In some cases, it may also lead you across or onto the curb. If necessary, you should cancel the parking procedure with Active Parking Assist.
RYou can also engage forward gear
prematurely. The vehicle redirects and does not drive as far into the parking space. Should a gear be changed too early, the parking procedure will be canceled. A sensible parking position can no longer be achieved from this position.
Exiting a parking space In order that Active Parking Assist can support you when you exit the parking space: Rthe border of the parking space must not
be too low.
Rthe border of the parking space must not be too wide. The system maneuvers the vehicle into a position at a maximum of 45°
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to the starting position in the parking space.
Ra maneuvering distance of at least 24 in
(0.60 m) must be available.
Active Parking Assist can only assist you with exiting a parking space if you have parked the vehicle using Active Parking Assist. X Start the engine. X Switch on the turn signal on the side facing
the street. X Shift the transmission to position D or R. The Start Park Assist? Yes: OK No: % message appears in the multifunction display.
X To cancel the procedure: press the
% button on the multifunction steering wheel or pull away.
or X To exit a parking space using Active
Parking Assist: press the a button on the multifunction steering wheel. The Park Assist Active Accelerate and Brake Observe Surroundings message appears in the multifunction display.
X Let go of the multifunction steering wheel. X Reverse the vehicle or drive forwards, being ready to brake at all times. Do not exceed a maximum speed of approximately 6 mph (10 km/h) when exiting a parking space. Otherwise Active Parking Assist will be canceled.
X Stop when PARKTRONIC sounds the
continuous warning tone, if not before.
X Shift the transmission to position D or R as
required while the vehicle is stationary. Active Parking Assist immediately steers in the other direction. The Park Assist Active Accelerate and Brake Observe Surroundings message appears in the multifunction display.
i You will achieve the best results by waiting for the steering procedure to complete before pulling away.
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A warning tone sounds. The parking space symbol disappears and the multifunction display shows the Park Assist Canceled message. If Active Parking Assist is canceled, you must steer again yourself. If a system malfunction occurs, the vehicle is braked to a standstill. To drive on, depress the accelerator again.
Rear view camera Important safety notes The rear view camera is only an aid. It is not a replacement for your attention to your immediate surroundings. You are always responsible for safe maneuvering and parking. When maneuvering or parking, make sure that there are no persons, animals or objects in the area in which you are maneuvering. Under the following circumstances, the rear view camera will not function, or will function in a limited manner: Rthe tailgate is open Rin heavy rain, snow or fog Rat night or in very dark places Rif the camera is exposed to very bright light Rif the area is lit by fluorescent light or LED
lighting (the display may flicker)
Rif there is a sudden change in temperature,
e.g. when driving into a heated garage in winter
Rif the camera lens is dirty or obstructed Rif the rear of your vehicle is damaged. In this event, have the camera position and setting checked at a qualified specialist workshop.
If you back up after activation, the steering wheel is moved to the straight-ahead position.
X Drive forwards or back up the vehicle, being
ready to brake at all times.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
X Drive forwards and reverse as prompted by the PARKTRONIC warning displays, several times if necessary.
Once you have exited the parking space completely, the steering wheel is moved to the straight-ahead position. You hear a tone and the Park Assist Finished message appears in the multifunction display. You will then have to steer and merge into traffic on your own. PARKTRONIC is still available.
Canceling Active Parking Assist You can cancel Active Parking Assist at any time. X Stop the movement of the multifunction
steering wheel or steer yourself. Active Parking Assist will be canceled at once. The Park Assist Canceled message appears in the multifunction display.
or X Press the PARKTRONIC button on the
center console (Y page 171). PARKTRONIC is switched off and Active Parking Assist is immediately canceled. The Park Assist Canceled message appears in the multifunction display.
Active Parking Assist is canceled automatically if: Ryou engage the electric parking brake. Rparking using Active Parking Assist is no
longer possible.
Ryou are driving faster than 6 mph
(10 km/h).
Ra wheel spins, ESP® intervenes or fails. The
÷ warning lamp lights up in the instrument cluster.
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To deactivate: the rear view camera is deactivated if you: Rselect transmission position P (vehicles
with automatic transmission)
Rdrive forward ten meters Rshift the transmission from R to another
position (after 15 seconds)
Rdrive forwards at a speed of over 5 mph
(10km/h)
Displays in the Audio/COMAND display The rear view camera may show a distorted view of obstacles, show them incorrectly or not at all. The rear view camera does not show objects in the following positions: Rvery close to the rear bumper Runder the rear bumper Rin the area immediately above the tailgate
handle
! Objects not at ground level may appear to be further away than they actually are, e.g.: Rthe bumper of a parked vehicle Rthe drawbar of a trailer Rthe ball coupling of a trailer tow hitch Rthe rear section of an HGV Ra slanted post Use the guidelines only for orientation. Approach objects no further than the bottom-most guideline.
General notes
Rear view camera : is in the trunk lid handle. The rear view camera extends, when it is activated. The rear view camera is an optical parking and maneuvering aid. It uses guide lines to show the area behind your vehicle in the Audio/ COMAND display. The area behind the vehicle is displayed as a mirror image, as in the rear view mirror. i The text of messages shown in the
COMAND display depends on the language setting. The following are examples of rear view camera messages in the COMAND display.
Activating/deactivating the rear view camera X To activate: make sure that the SmartKey
is in position 2 in the ignition lock.
X Make sure that in the audio system/ COMAND, the "Activation by R gear" function is selected; see the separate operating instructions for the audio system/COMAND.
X Engage reverse gear.
Guide lines are used to show the area behind the vehicle in the Audio/COMAND display.
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The lanes and guide lines are only displayed if you have engaged reverse gear. The distance specifications only apply to objects that are at ground level.
Lanes : White guide line without turning the
steering wheel, vehicle width including the exterior mirrors (static)
; Yellow lane marking tires at current
steering wheel angle, vehicle width to the outer side of the wheels (dynamic) = Red guide line for the vehicle width
including the exterior mirrors, for current steering wheel angle (dynamic)
? Bumper
Guide lines ? Bumper A Red guide line at a distance of
approximately 10 in (0.25 m) from the rear of the vehicle
B Yellow guide line at a distance of
approximately 13 ft (4.0 m) from the rear of the vehicle
C Vehicle center axle (marker assistance) D Yellow guide line at a distance of
approximately 3 ft (1.0 m) from the rear of the vehicle
Additional displays on vehicles with PARKTRONIC and COMAND : Front warning display ; Additional PARKTRONIC measurement
operational readiness indicator
= Rear warning display Vehicles with PARKTRONIC and COMAND: if PARKTRONIC is operational (Y page 169), an additional operational readiness indicator will appear in COMAND display ;.If the PARKTRONIC warning displays are active or light up, warning displays : and = are also active or light up correspondingly in the COMAND display.
Reverse parking function X Make sure that the rear view camera is
activated and the "Reverse parking" function is selected; see the separate operating instructions for the audio system/COMAND. The lane and the guide lines are shown.
Backing up straight into a parking space without turning the steering wheel
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: White lane with steering wheel straight ; Yellow guide line at a distance of
approximately 3 ft (1.0 m) from the rear of the vehicle
= Red guide line at a distance of
approximately 10 in (0.25 m) from the rear of the vehicle
X With the help of white lane :, check
whether the vehicle will fit into the parking space.
X Using the white lane as a guide, carefully reverse until you reach the end position. Red guide line = is then at the end of the parking space. The vehicle is almost parallel in the parking space.
Reverse perpendicular parking with the steering wheel at an angle X Drive past the parking space and bring the
vehicle to a standstill.
Turning the steering wheel : Red lane indicating the route the vehicle
will take with the steering wheel in its current position
; Parking space marking X While the vehicle is at a standstill, turn the
steering wheel in the direction of the parking space until the red lane reaches parking space marking ;.
X Keep the steering wheel in that position
and back up carefully.
Backing up with the steering wheel turned : Red lane indicating the route the vehicle
will take with the steering wheel in its current position
X Stop the vehicle when it is almost exactly
in front of the parking space. The white lane should be as close to parallel with the parking space marking as possible.
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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.
Important safety notes ATTENTION ASSIST is only an aid to the driver. It might not always recognize fatigue or increasing inattentiveness in time or fail to recognize them at all. The system is not a substitute for a well-rested and attentive driver. 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
Rjourney details, e.g. time of day and length
of journey
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
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
Driving to the final position : White lane at current steering wheel angle ; Parking space marking X Turn the steering wheel to the center position while the vehicle is stationary.
: Red guide line at a distance of
approximately 10 in (0.25 m) from the rear of the vehicle
; White lane with steering wheel straight = End of parking space X Back up carefully until you have reached
the final position. Red guide line : is then at end of parking space =. The vehicle is almost parallel in the parking space.
ATTENTION ASSIST General notes ATTENTION ASSIST helps you during long, monotonous journeys, such as on highways. It is active in the range between 50 mph (80 km/h) and 112 mph (180 km/h).
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Warning and display messages in the multifunction display
X Activate ATTENTION ASSIST using the on-
board computer (Y page 195). Symbol : appears in the multifunction display. If ATTENTION ASSIST is active, it will not warn you until at least 20 minutes after your journey has begun. You 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 the a button 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. ATTENTION ASSIST is reset when you continue your journey and starts assessing your tiredness again if: 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.
Lane Tracking package General notes The Lane Tracking package consists of Blind Spot Assist (Y page 181) and Lane Keeping Assist (Y page 183).
Blind Spot Assist Important safety notes G WARNING Blind Spot Assist does not react to: Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles approaching and driving by with a
speed difference of more than 6.8 mph (11 km/h)
As a result, Blind Spot Assist may not give warnings in such situations. There is a risk of an accident. Always observe the traffic conditions carefully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to detect some vehicles and is no substitute for attentive driving. i USA only:
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. Removing, tampering with, or altering 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.
General notes Blind Spot Assist uses a radar sensor system to monitor the areas on both sides of your vehicle. It supports you from a speed of approximately 20 mph (30 km/h). A warning display in the exterior mirrors draws your attention to vehicles detected in the
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monitored area. If you then switch on the corresponding turn signal to change lanes, you will also receive a visual and audible collision warning. For this purpose, Blind Spot Assist uses sensors in the rear bumper. For Blind Spot Assist to assist you when driving, the radar sensor system must be: Ractivated(Y page 199) Roperational Monitoring range of the sensors In particular, the detection of obstacles can be impaired if: Rdirt on the sensors or anything else
covering the sensors
Rthere is poor visibility, e.g. due to fog, heavy
rain or snow
Ra narrow vehicle traveling in front, e.g. a
motorbike or bicycle
Rthe road has very wide lanes Rthe road has narrow lanes Ryou are not driving in the middle of the lane Rthere are barriers or similar lane borders Vehicles in the monitoring range are then not indicated.
For this purpose, Blind Spot Assist uses radar sensors in the rear bumper. 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 the vehicles are driving on the inner side of their lane. 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 particularly long vehicles, e.g. trucks, for a prolonged time.
The two sensors for Blind Spot Assist are integrated into the sides of the rear bumper. Make sure that the bumper is free of dirt, ice or slush in the vicinity of the sensors. For example, the radar sensors must not be covered by bicycle racks or overhanging loads. Following a severe impact or in the event of damage to the bumpers, have the function of the radar sensors checked at a qualified specialist workshop. Blind Spot Assist may otherwise not work properly. Indicator and warning display Blind Spot Assist is not active at speeds below approximately 20 mph (30 km/h). Vehicles in the monitoring range are then not indicated.
Blind Spot Assist monitors the area up to 10 ft (3.0 m) behind your vehicle and directly next to your vehicle, as shown in the diagram.
: 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 (30 km/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 (12 km/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. 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, vehicles detected 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 199) and Blind Spot Assist (Y page 195) are activated in the on-board computer.
X Turn the SmartKey to position 2 in the
ignition lock. Warning lamps : in the exterior mirrors light up red for approximately 1.5 seconds and then turn yellow.
Lane Keeping Assist General 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
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you before you leave your lane unintentionally.
: Lane Keeping Assist camera If you select km on the on-board computer in the Display Unit Speed-/Odometer: function (Y page 196), Lane Keeping Assist is active starting at a speed of 60 km/h. If the miles display unit is selected, the assistance range begins at 40 mph. Important safety notes G WARNING Lane Keeping Assist may not always clearly recognize lane markings. In this case, Lane Keeping Assist may: Rgive an unnecessary warning Rnot give a warning There is a risk of an accident. Always pay particular attention to the traffic situation and stay in lane, in particular if warned by Lane Keeping Assist. G WARNING The Lane Keeping Assist warning does not return the vehicle to the original lane. There is a risk of an accident. You should always steer, brake or accelerate yourself, in particular if warned by Lane Keeping Assist.
If you fail to adapt your driving style, Lane Keeping Assist can neither reduce the risk of an accident nor override the laws of physics. Lane Keeping Assist cannot take into account the road, traffic and weather conditions. Lane
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Keeping Assist is merely an aid. You are responsible for the distance to the vehicle in front, for vehicle speed, for braking in good time and for staying in your lane. The Lane Keeping Assist does not keep the vehicle in the lane. The system may be impaired or may not
