Always pay particular attention to the traffic situation and keep in lane, especially if Lane Keeping Assist alerts you. G WARNING The Lane Keeping Assist warning does not return the vehicle to the original lane. There is a risk of an accident. Always steer, apply the brakes or accelerate the vehicle yourself, especially if Lane Keep- ing Assist alerts you.
Lane Keeping Assist does not keep your vehi- cle in its lane. The system may be impaired or may not func- tion if: Rthere is poor visibility, e.g. due to insuffi-
cient 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 (e.g. if the road surface is wet)
Rthe windscreen is dirty, misted up, dam- aged or covered, for instance by a sticker in the vicinity of the camera
Rno, or several, unclear lane markings are
present for one lane, e.g. in a construction area
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Driving systems
203
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be detected
Rthe lane markings change quickly, e.g. lanes branch off, cross one another or merge
Rthe road is narrow and winding Rthere are highly variable shade conditions
on the road
Activating Lane Keeping Assist X Activate Lane Keeping Assist using the on- board computer; to do so, select Stand‐ ard or Adaptive(Y page 230). If you drive at speeds above 60 km/h and lane markings are detected, the lines in the assistance graphic display (Y page 228) are shown in green. Lane Keeping Assist is ready for use.
Standard If Standard is selected, no warning vibration occurs if: Ryou have switched on the turn signals. In this case, the warnings are suppressed for a certain period of time.
Ra driving safety system intervenes, such as
ABS, BAS or ESP®. Adaptive When Adaptive is selected, no warning vibra- tion occurs if: Ryou have switched on the turn signals. In this case, the warnings are suppressed for a certain period of time.
Ra driving safety system intervenes, such as
ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown. Ryou brake hard. Ryou steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
Ryou cut the corner on a sharp bend. In order that you are warned only when nec- essary and in good time if you cross the lane marking, the system recognises certain con- ditions and warns you accordingly.
The warning vibration occurs earlier if: Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a motor-
way.
Rthe system recognises solid lane markings. The warning vibration occurs later if: Rthe road has narrow lanes. Ryou cut the corner on a bend. Towing a trailer If you attach a trailer, make sure that you have correctly established the electrical connec- tion. This can be accomplished by checking the trailer lighting.
Active Driving Assistance package General notes The Active Driving Assistance package con- sists of DISTRONIC PLUS (Y page 179), Active Blind Spot Assist (Y page 203) and Active Lane Keeping Assist (Y page 206).
Active Blind Spot Assist General notes Active Blind Spot Assist uses a radar sensor system to monitor the area to the sides of your vehicle which are behind 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 cor- responding turn signal to change lanes, you will also receive an optical and audible colli- sion warning. If a risk of side impact is detec- ted, 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 sys- tem. The space available in the direction of travel as well as to the side of the vehicle is evaluated before a course-correcting braking application is performed.
204 Driving systems
Active Blind Spot Assist supports you from a speed of approximately 30 km/h. For Active Blind Spot Assist to assist you when driving, the radar sensor system must be operational. Important safety notes Active Blind Spot Assist is only an aid. It does not detect all traffic situations and road users and is no substitute for attentive driving. Always ensure that there is sufficient dis- tance to the side for other road users and obstacles. G WARNING Active Blind Spot Assist does not react to vehicles: Rovertaking too closely on the side, placing
them in the blind spot area
Rif the difference in the speed of approach
and overtaking is too great
As a result, Active Blind Spot Assist may nei- ther give warnings nor intervene in such sit- uations. There is a risk of an accident. Always pay careful attention to the traffic sit- uation and maintain a safe distance at the side of the vehicle.
Monitoring range of the sensors G WARNING Active Blind Spot Assist does not detect all traffic situations and road users. There is a risk of an accident. Always make sure that there is sufficient dis- tance to the side for other traffic or obstacles.
In particular, the detection of obstacles can be impaired in the case of: Rdirt on the sensors or the sensors are
obscured
Rpoor visibility, e.g. due to rain, snow or
spray
Vehicles in the monitoring range are then not indicated.
Active Blind Spot Assist may not detect nar- row vehicles, such as motorcycles or bicy- cles, or may only detect them too late.
Active Blind Spot Assist monitors the area up to three metres 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. 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 at the edge of their lane nearest your vehicle. Due to the nature of the system: Rwarnings may be issued in error when driv- ing close to crash barriers or similar solid lane borders.
Rwarnings may be interrupted when driving
alongside long vehicles, for example lor- ries, 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 grille. Make sure that the sensors and the areas around them are free of dirt, ice or slush. The rear sensors must not be covered, e.g. by bicycle racks or overhanging loads. Following a severe impact or in the event of damage to
Driving systems
205
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 Active Blind Spot Assist is not active at speeds below approximately 30 km/h. Vehi- cles in the monitoring range are then not indi- cated.
: Yellow indicator lamp/red warning lamp If Active Blind Spot Assist is switched on, indicator lamp : in the exterior mirrors lights up yellow up to a speed of 30 km/h. At speeds above 30 km/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 30 km/h, warning lamp : on the corre- sponding side lights up red. This warning always occurs 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 12 km/h. The yellow indicator lamp goes out if reverse gear is engaged. Active Blind Spot Assist is then no longer active. The brightness of the indicator/warning lamps is adjusted automatically according to the ambient light.
Visual and acoustic collision warning When you switch on the turn signals to change lanes and a vehicle is detected in the side monitoring range, you receive a visual and acoustic collision warning. You then hear a double warning tone and red warning lamp : flashes. If the turn signal remains on, detected vehicles are indicated by the flash- ing of red warning lamp :. There are no fur- ther warning tones. Course-correcting brake application G WARNING A course-correcting brake application cannot always prevent a collision. There is a risk of an accident. Always steer, brake or accelerate yourself, especially if Active Blind Spot Assist warns you or makes a course-correcting brake appli- cation. Always maintain a safe distance at the sides.
In very rare cases, the system may make an inappropriate brake application. An inappro- priate brake application may be interrupted at any time if you steer slightly in the opposite direction or accelerate. If Active Blind Spot Assist detects a risk of a side impact in the monitoring range, a course- correcting brake application is carried out. This is designed to help you avoid a collision. The course-correcting brake application is available in the speed range between 30 km/h and 200 km/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:
Example: vehicles with automatic transmission
206 Driving systems
Either a very slight course-correcting brake application, or none at all, may occur if: Rthere are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle
Ra vehicle approaches too closely on the
side
Ryou have adopted a sporty driving style with
high cornering speeds
Ryou brake or accelerate decisively Ra driving safety system intervenes, such as
ESP® or PRE-SAFE® Brake
RESP® is deactivated Ra loss of tyre pressure or a defective tyre is
detected
Activating Active Blind Spot Assist X Make sure that Active Blind Spot Assist (Y page 229) is activated in the on-board computer.
X Turn the key 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.
Towing a trailer If you attach a trailer, make sure that you have correctly established the electrical connec- tion. This can be accomplished by checking the trailer lighting. Active Blind Spot Assist is then deactivated. The indicator lamp lights up yellow in the exterior mirrors and the Active Blind Spot Assist currently unavail‐ able See Owner's Manual message appears in the multifunction display.
Active Lane Keeping Assist General notes Active Lane Keeping Assist monitors the area in front of your vehicle by means of cam- era : mounted at the top of the windscreen. Active Lane Keeping Assist detects lane markings on the 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 select km in the Display unit Speed-/odometer: function on the on-board computer(Y page 230), Active Lane Keeping Assist is activated 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 If you fail to adapt your driving style, Active Lane Keeping Assist can neither reduce the risk of an accident nor override the laws of physics. Lane Keeping Assist cannot take into account road, weather or traffic conditions. Lane Keeping Assist is only 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 the lane. Active Lane Keeping Assist cannot continu- ously keep your vehicle in its lane. G WARNING Active Lane Keeping Assist cannot always clearly detect lane markings. In such cases, Active Lane Keeping Assist can: Rgive an unnecessary warning and then
make a course-correcting brake application to the vehicle
Rneither give a warning nor intervene There is a risk of an accident. Always pay particular attention to the traffic situation and keep within the lane, especially
Driving systems
207
if Active Lane Keeping Assist alerts you. Ter- minate the intervention in a non-critical driv- ing situation.
The warning vibration occurs earlier if: Ryou approach the outer lane marking on a
bend.
The system may be impaired or may not func- tion if: Rthere is poor visibility, e.g. due to insuffi-
cient 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 (e.g. if the road surface is wet)
Rthe windscreen is dirty, misted up, dam- aged or covered, for instance by a sticker in the vicinity of the camera
Rno, or several, unclear lane markings are
present for one lane, e.g. in a construction area
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be detected
Rthe lane markings change quickly, e.g. lanes branch off, cross one another or merge
Rthe road is narrow and winding Rthere are highly variable shade conditions
on the roadway
Rno vehicle is detected in the adjacent lane
and there are broken lane markings
Warning vibration through 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 nec- essary and in good time if you cross the lane marking, the system recognises certain con- ditions and warns you accordingly.
Rthe road has very wide lanes, e.g. a motor-
way.
Rthe system recognises solid lane markings. The warning vibration occurs later if: Rthe road has narrow lanes. Ryou cut the corner on a bend. Lane-correcting brake application G WARNING A lane-correcting brake application cannot always bring the vehicle back into the original lane. There is a risk of an accident. Always steer, brake or accelerate yourself, especially if Active Lane Keeping Assist warns you or makes a lane-correcting brake appli- cation. G WARNING Active Lane Keeping Assist does not detect traffic conditions or road users. In very rare cases, the system may make an inappropriate brake application, e.g. after intentionally driv- ing over a solid lane marking. There is a risk of an accident. An inappropriate brake application may be interrupted at any time if you steer slightly in the opposite direction. Always make sure that there is sufficient distance to the side for other traffic or obstacles.
If you leave your lane under certain circum- stances, the vehicle will brake briefly on one side. This is intended to help you return the vehicle to the original lane. This function is available in the range between 60 km/h and 200 km/h. A lane-correcting brake application can only be made after driving over a solid, recognis- able lane marking. Before this, a warning must have been issued by means of intermit- tent vibration through the steering wheel. In addition, a lane with lane markings on both
208 Driving systems
sides must be recognised. The brake applica- tion also slightly reduces driving speed. If a lane-correcting brake application occurs, the following appears in the multifunction dis- play:
Example: vehicles with automatic transmission i A further lane-correcting brake applica- tion can only occur after your vehicle has returned to the original lane.
No lane-correcting brake application occurs if: Ryou clearly and actively steer, brake or
accelerate.
Ryou cut the corner on a sharp bend. Ryou have switched on the turn signals. Ra driving safety system intervenes, such as
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.
Ron vehicles with a trailer tow hitch, the
electrical connection to the trailer has been correctly established. RESP® is deactivated. Rthe transmission is not in position D. Ra loss of tyre pressure or a defective tyre
has been detected and displayed.
Active Lane Keeping Assist does not detect road and traffic conditions. An inappropriate brake application may be interrupted at any time if: Ryou steer slightly in the opposite direction. Ryou use a turn signal. Ryou clearly brake or accelerate. A lane-correcting brake application is inter- rupted automatically if: Ra driving safety system intervenes, such as
ESP®, PRE-SAFE® Brake or Active Blind Spot Assist.
Rlane markings are no longer be detected. Activating Active Lane Keeping Assist X Activate Active Lane Keeping Assist using the on-board computer; to do so, select Standard or Adaptive(Y page 230). If you drive at speeds above 60 km/h and lane markings are detected, the lines in the assistance graphic display (Y page 228) are shown in green. Lane Keeping Assist is ready for use. If Standard is selected, no warning vibra- tion occurs if: Ryou have switched on the turn signals. In this case, the warnings are suppressed for a certain period of time.
Ra driving safety system intervenes, such as ABS, BAS or ESP®. When Adaptive is selected, no warning vibration occurs if: Ryou have switched on the turn signals. In this case, the warnings are suppressed for a certain period of time.
Ra driving safety system intervenes, such
as ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown. Ryou brake hard. Ryou steer actively, e.g. swerve to avoid
an obstacle or change lane quickly. Ryou cut the corner on a sharp bend.
Towing a trailer
209
Towing a trailer If you attach a trailer, make sure that you have correctly established the electrical connec- tion. This can be accomplished by checking the trailer lighting.
Towing a trailer Notes on towing a trailer Important safety notes G WARNING The braking system can overheat if you leave your foot on the brake pedal while driving. This increases the braking distance and could even cause the braking system to fail. There is a risk of an accident. Never use the brake pedal as a footrest. Do not simultaneously depress both the brake pedal and the accelerator pedal while driving. G WARNING You could lose control of the vehicle/trailer combination if it begins to swerve. The vehi- cle/trailer combination could even overturn. There is a risk of an accident. On no account should you attempt to straighten out the vehicle/trailer combina- tion by increasing speed. Decrease your speed and do not countersteer. Brake if nec- essary. G WARNING If the maximum the permissible load for a car- rier system is exceeded, the carrier could come loose from the vehicle and endanger other road users. There is a risk of an accident and injury. Never exceed the permissible noseweight when using a carrier.
! Depressing the brake pedal constantly
results in excessive and premature wear to the brake pads.
If you exceed the maximum permissible nose- weight of the trailer drawbar on the ball cou- pling, the following may become damaged: Ryour vehicle Rthe trailer Rthe ball coupling Rthe trailer tow hitch The vehicle/trailer combination could become unstable. If the noseweight used is lower than the min- imum permissible noseweight, the vehicle/ trailer combination could also become unsta- ble. To avoid hazardous situations: Rmake sure to check the noseweight before
each journey.
Ruse a drawbar noseweight as close as pos-
sible to the maximum noseweight.
Rdo not exceed the maximum permissible
noseweight.
Rdo not use a noseweight lower than the
minimum permissible trailer drawbar nose- weight.
When reversing the vehicle towards the trailer, make sure there is nobody between the trailer and the vehicle. Couple and uncouple the trailer carefully. If you do not couple the trailer to the towing vehicle correctly, the trailer could become detached. Make sure that the following values are not exceeded: Rthe permissible trailer drawbar noseweight Rthe permissible trailer load Rthe permissible rear axle load of the towing
vehicle
Rthe maximum permissible gross vehicle
weight of both the towing vehicle and the trailer
210 Towing a trailer
The applicable permissible values, which must not be exceeded, can be found: Rin the vehicle documents Ron the identification plates of the trailer tow
hitch, the trailer and the vehicle
If the values differ, the lowest value applies. You will find the values approved by the man- ufacturer on the vehicle identification plates and those for the towing vehicle under "Tech- nical data" (Y page 382). When towing a trailer, your vehicle's handling characteristics will be different in comparison to when driving without a trailer. The vehicle/trailer combination: Ris heavier Ris restricted in its acceleration and gradi-
ent-climbing capability
Rhas an increased braking distance Ris affected more by strong crosswinds Rdemands more sensitive steering Rhas a larger turning circle This can impair the vehicle's handling char- acteristics. Adapt your style of driving accord- ingly. Maintain a safe distance. Drive care- fully. When towing a trailer, always adjust your speed to the current road and weather con- ditions. Do not exceed the maximum permis- sible speed for your vehicle/trailer combina- tion.
General notes i When towing a trailer, set the tyre pres- sure on the rear axle of the towing vehicle for a maximum load; see the tyre pressure table in the fuel filler flap (Y page 350).
Please note that when towing a trailer, PARK- TRONIC (Y page 191), Parking Guidance (Y page 194) and Blind Spot Assist (Y page 200) are only available with limita- tions, or not at all. i The height of the ball coupling changes with the load of the vehicle. If necessary,
use a trailer with a height-adjustable draw- bar.
You will find fitting dimensions and loads under "Technical data" (Y page 381).
Driving tips i Observe the notes on ESP® trailer stabi-
lisation (Y page 76).
The maximum permissible speed for vehicle/ trailer combinations depends on the type of trailer. Before beginning the journey, check the trailer's documents to see what the max- imum permitted speed is. Observe the legally prescribed maximum speed in the relevant country. For certain Mercedes-Benz vehicles, the max- imum permissible rear axle load is increased when towing a trailer. Refer to the "Technical data" section to find out whether this applies to your vehicle. If you utilise any of the added maximum rear axle load when towing a trailer, the vehicle/ trailer combination may not exceed a maxi- mum speed of 100 km/h for reasons con- cerning the operating permit. This also applies in countries in which the permissible maximum speed for vehicle/trailer combina- tions is above 100 km/h. When towing a trailer, your vehicle's handling characteristics will be different in comparison to when driving without a trailer and it will consume more fuel. Change into a lower gear in good time on long and steep downhill gradients. On vehicles with automatic transmission, you must select shift range 1, 2 or 3. i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS- TRONIC PLUS.
This will use the braking effect of the engine, so less braking will be required to maintain vehicle speed. This relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly. If you
Towing a trailer
211
need additional braking, depress the brake pedal repeatedly rather than continuously.
Driving tips RMaintain a greater distance from the vehi-
cle in front than when driving without a trailer.
RAvoid braking abruptly. If possible, brake gently at first to allow the trailer to run on. Then, increase the braking force rapidly.
RThe values given for gradient-climbing
capabilities from a standstill refer to sea level. When driving in mountainous areas, note that the power output of the engine, and consequently the vehicle's gradient- climbing capability, decrease with increas- ing altitude.
If the trailer swings from side to side: X Do not accelerate. X Do not countersteer. X Brake if necessary.
Folding out the ball coupling Before you can tow a trailer with your vehicle, you must fold out the ball coupling. The release wheel is located behind the left- hand side trim panel in the boot. G WARNING If the ball coupling is not correctly engaged, the trailer can detach. There is a risk of an accident. Always engage the ball coupling as described. G WARNING If you release the ball coupling or it does not engage correctly when folding in, it will swing out. Within pivoting range of the ball coupling, there is an increased risk of an accident and injury. Only release the ball coupling if the pivoting range is unobstructed. Always make sure that the ball coupling engages when folding in.
X To open the cover: turn handle : anti-
clockwise and fold down cover ;.
X Pull out release wheel =. X Turn release wheel = anti-clockwise until
the ball coupling releases and folds out from under the rear bumper. Indicator lamp ? flashes.
X Pull the ball coupling in the direction of the arrow until it engages in a vertical position. Indicator lamp ? goes out. The power socket folds down automatically.
212 Towing a trailer
Vehicles with a 4-button multifunction steering wheel: the Trailer hitch Check lock mech. display message is shown in the multifunction display until the ball coupling has engaged. Vehicles with a 12-button multifunc- tion steering wheel: the Trailer hitch Check lock mech. display message is shown in the multifunction display until the ball coupling has engaged.
X Remove the protective covering from the ball coupling and store it in a safe place.
X Make sure that the ball of the ball coupling is clean and that it is either greased or dry (grease free), depending on the instruc- tions for the trailer.
and tyres, or underneath the vehicle. This poses a risk of injury. Make sure that no-one is in the immediate vicinity of the wheel arch or underneath the vehicle when disconnecting the trailer cable.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your vehicle could be damaged by the rebound- ing of the overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Engage the parking brake. X Secure the trailer against rolling away. X Remove the trailer cable and decouple the
trailer.
Folding in the ball coupling G WARNING If you release the ball coupling or it does not engage correctly when folding in, it will swing out. Within pivoting range of the ball coupling, there is an increased risk of an accident and injury. Only release the ball coupling if the pivoting range is unobstructed. Always make sure that the ball coupling engages when folding in.
i Fold the ball coupling back in if you are
not using the trailer tow hitch.
X Place the protective covering on the ball
coupling.
The release wheel is located behind the left- hand side trim panel in the boot.
Coupling up a trailer G WARNING If you uncouple a trailer with an engaged over- run brake, you could trap your hand between the vehicle and the trailer drawbar. This poses a risk of injury. Do not uncouple a trailer with an engaged overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Engage the parking brake. X Position the trailer level behind the vehicle. X Couple up the trailer. X Establish the electric connection between
the vehicle and the trailer.
X Check that the trailer lighting system is
working.
Uncoupling a trailer G WARNING Vehicles with level control: If you disconnect the trailer cable, the vehicle is lowered. This can cause you or others to become trapped between the vehicle body
Towing a trailer
213
Trailer power supply When it leaves the factory, your vehicle's trailer socket is equipped with a permanent power supply and a power supply that is switched on via the ignition lock. The permanent power supply is supplied via trailer socket pin 9. The power supply that is switched on via the ignition lock is supplied via trailer socket pin 10. ! You can connect accessories with a
power rating of up to 240 W to the perma- nent power supply and with a power rating of up to 180 W to the power supply that is switched on via the ignition lock. The trailer battery may not be charged from the power supply.
The trailer's permanent power supply is switched off in the event of low vehicle supply voltage and after six hours at the latest. You can find more information about fitting the trailer electrics at a qualified specialist workshop. X To switch the connected power supply on or off: turn the key in the ignition lock to position 2 or 0 respectively.
Bulb failure indicator for LED lamps i If LED lamps are fitted in the trailer, an error message may appear in the multi- function display even if there is no fault. The reason for the error message could be that the current has fallen below the minimum of 50 mA.
To ensure reliable operation of the bulb failure indicator, each LED chain in the trailer lighting must be guaranteed a minimum current of 50 mA.
X To open the cover: turn handle : anti-
clockwise and fold down cover ;.
X Pull out release wheel =. X Turn release wheel = anti-clockwise.
The ball coupling unlocks and lowers. Indi- cator lamp ? flashes.
X Press the ball coupling in the direction of
the arrow until it engages behind the bumper. Indicator lamp ? goes out and the mes- sage in the multifunction display disap- pears.
214 Towing a trailer
Trailer with 7-pin connector General notes Trailer with 7-pin connector: you can con- nect to the 13-pin socket on the ball coupling using an adapter or, if necessary, an adapter cable. Both can be obtained at a qualified specialist workshop.
Fitting the adapter ! Make sure that there is sufficient cable
play so that the cable cannot become detached when cornering.
X Open the socket cover. X Insert the plug connector with lug : into groove = on the socket. Turn bayonet con- nection ; clockwise to the stop.
X Let the cover engage. X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
Useful information ............................ 216
Important safety notes .................... 216
Displays and operation (4-button
multifunction steering wheel) ......... 216
Displays and operation (12-button
multifunction steering wheel) ......... 219
Display messages ............................. 240
Warning and indicator lamps in the
instrument cluster ............................ 281
215
216 Displays and operation (4-button multifunction steering wheel)
Useful information
i This Owner's Manual describes all mod- els, series and optional equipment for your vehicle that were available at the time of going to press. National variations are pos- sible. Note that your vehicle may not be equipped with all of the functions descri- bed. This is also the case for systems and functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 28).
Important safety notes
G WARNING Operating the integrated information systems and communications equipment in the vehicle while driving will distract you from traffic con- ditions. You could then lose control of the vehicle. There is a risk of an accident. Only operate these devices if road traffic con- ditions permit. If you are unsure about the surrounding conditions, pull over to a safe location and make entries only while the vehi- cle is stationary. G WARNING If the instrument cluster has failed or mal- functioned, you may not recognise function restrictions relevant to safety. The operating safety of your vehicle may be impaired. There is a risk of an accident. Drive on carefully. Have the vehicle checked at a qualified specialist workshop immedi- ately.
You must observe the legal requirements for the country in which you are currently driving when operating the on-board computer. The on-board computer only shows messages or warnings from certain systems in the mul- tifunction display. You should therefore make sure your vehicle is operating safely at all
times. Otherwise, a vehicle that is not oper- ating safely may cause an accident. For an overview, see the instrument cluster illustration for vehicles with: R4-button multifunction steering wheel
R12-button multifunction steering wheel
(Y page 34)
(Y page 37)
Displays and operation (4-button mul- tifunction steering wheel) Instrument cluster lighting The lighting in the instrument cluster, in the displays and the controls in the vehicle inte- rior can be adjusted using the brightness con- trol knob. The brightness control knob is located on the bottom left of the instrument cluster (Y page 37). X Turn the brightness control knob clockwise
or anti-clockwise. If the light switch is set to Ã, T or L, the brightness is dependant upon the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of the multifunction display. In daylight, the displays in the instrument cluster are not illuminated.
Coolant temperature gauge The coolant temperature gauge is in the instrument cluster on the left-hand side. Under normal operating conditions and with the specified coolant level, the coolant tem- perature may rise to 120 †. At high outside temperatures and when driv- ing uphill, the coolant temperature may rise to the end of the scale.
Displays and operation (4-button multifunction steering wheel)
217
Rev counter The red band in the rev counter indicates the engine's overrevving range. ! Do not drive in the overrevving range.
Doing so will damage the engine.
The fuel supply is interrupted to protect the engine when the red band is reached.
Outside temperature display You should pay special attention to road con- ditions when temperatures are around the freezing point. The outside temperature display is in the instrument cluster (Y page 34). Changes in the outside temperature are dis- played after a short delay.
Operating the on-board computer The on-board computer is activated as soon as you turn the key to position 1 in the ignition lock. You can use the on-board computer to call up information relating to your vehicle and to make and adjust settings. i You can have certain functions set at a
qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Examples: Rautomatic door locking Rspeed limit for winter tyres You can obtain information about this at any Mercedes-Benz Service Centre.
You can control the multifunction display and the settings in the on-board computer using the buttons on the multifunction steering wheel.
: Multifunction display ; W Increases the volume = X Decreases the volume ? C Scrolls through lists/adjusts val-
ues/confirms display messages
A V Selects a menu i If you press and hold the V button, the standard display appears. i In the Day. driv. lights menu, you can use the W or X button to switch the function on or off. You cannot adjust the volume when in the Day. driv. lights: menu.
Multifunction display To activate the multifunction display: Rswitch on the ignition Rswitch on the lights Ropen the driver's door
218 Displays and operation (4-button multifunction steering wheel)
Values and settings as well as display mes- sages are shown in multifunction display :.
Menu overview Operating the on-board computer (Y page 217). RStandard display (Y page 218) RTrip computer (Y page 218) RRange (Y page 218) RCurrent fuel consumption RDigital speedometer RMessage memory (Y page 240) RService (Y page 312) RTyre pressure loss warning system
(Y page 351)
RDaytime driving lights (Y page 218) RTime (Y page 219)
Standard display
X To reset the trip meter: press and hold the V button until the standard display appears.
X Press and hold the C button until the
value has been reset.
Trip computer X Press the V button on the steering
wheel repeatedly until the trip computer appears.
: Distance ; Average speed = Time ? Average fuel consumption X To reset the trip computer: press and
hold the C button on the steering wheel until the values have been reset.
Calling up the range X Press the V button on the steering wheel repeatedly until the approximate range appears.
The approximate range which can be covered depends on the fuel level and your current driving style. If there is only a small amount of fuel left in the fuel tank, the display shows a vehicle being refuelled C instead of the range.
X Press and hold the V button on the
steering wheel until the standard display with trip meter : and total distance recorder ; is shown.
Switching the daytime driving lights on/off If you have activated the Day. driv. lights: function and the light switch is in the
Displays and operation (12-button multifunction steering wheel)
219
à position, the daytime driving lights are switched on automatically when the engine is running. When it is dark, the side lamps and the dipped-beam headlamps are switched on automatically. On vehicles with daytime driving lamps, the factory setting is on. If you want to change the setting for the Day. driv. lights: function, you have to turn the key in the ignition lock to position 1. X Press the V button on the steering wheel repeatedly until the Day. driv. lights: menu appears. You will see the selected setting: on or off. X Press the W or X button to change
the setting.
Time/date i Depending on your vehicle's equipment,
the time can be set using the on-board computer or the audio system/COMAND, see the separate operating instructions.
X Press the V button on the steering wheel repeatedly until the "Time/date" menu appears.
X To set: use the C button to select the display you want to change: hour, minutes, day, month, year.
X Press W or X to set the selected dis-
play.
X To save: press the C button.
The next display is selected.
The brightness control knob is located on the bottom left of the instrument cluster (Y page 37). X Turn the brightness control knob clockwise
or anti-clockwise. If the light switch is set to Ã, T or L, the brightness is dependant upon the brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of the multifunction display. In daylight, the displays in the instrument cluster are not illuminated.
Coolant temperature gauge G WARNING If you open the bonnet while the engine is overheating or while there is a fire in the engine compartment, you could come into contact with hot gases or other leaking service products. There is a danger of injury. Allow an overheating engine to cool down before opening the bonnet. If there is a fire in the engine compartment, leave the bonnet closed and notify the fire brigade.
The coolant temperature gauge is in the instrument cluster on the left-hand side. Under normal operating conditions and with the specified coolant level, the coolant tem- perature may rise to 120 †. At high outside temperatures and when driv- ing uphill, the coolant temperature may rise to the end of the scale.
Displays and operation (12-button multifunction steering wheel) Instrument cluster lighting The lighting in the instrument cluster, in the displays and the controls in the vehicle inte- rior can be adjusted using the brightness con- trol knob.
Rev counter The red band in the rev counter indicates the engine's overrevving range. ! Do not drive in the overrevving range.
Doing so will damage the engine.
The fuel supply is interrupted to protect the engine when the red band is reached.
220 Displays and operation (12-button multifunction steering wheel)
Outside temperature display You should pay special attention to road con- ditions when temperatures are around the freezing point. The outside temperature display is in the mul- tifunction display (Y page 221). Changes in the outside temperature are dis- played after a short delay.
Speedometer with segments The segments in the speedometer indicate which speed range is available. RCruise control activated (Y page 174): The segments light up from the stored speed to the maximum speed.
RVariable SPEEDTRONIC activated
(Y page 177): The segments light up from the start of the scale to the selected limit speed.
RDISTRONIC PLUS activated (Y page 179):
One or two segments in the set speed range light up.
RDISTRONIC PLUS detects a vehicle in front:
The segments between the speed of the vehicle in front and the stored speed light up.
Operating the on-board computer Overview The on-board computer is activated as soon as you turn the key to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using the buttons on the multifunction steering wheel.
: Multifunction display ; Switches on LINGUATRONIC; see the sep-
arate operating instructions
= Right control panel ? Left control panel A Back button
Left control panel
RCalls up the menu and menu bar
Press briefly: RScrolls through lists RSelects a submenu or function RIn the Audio menu: selects a stored station, an audio track or a video scene RIn the Tel (telephone) menu: switches to the phone book and selects a name or telephone number
Displays and operation (12-button multifunction steering wheel)
221
Back button
% Press briefly:
RBack RSwitches off LINGUATRONIC;
see the separate operating instructions RHides display messages/calls up the last Trip menu function used
RExits the telephone book/redial
memory
% Press and hold: RCalls up the standard display in the Trip menu
Multifunction display Values and settings as well as display mes- sages are shown in the multifunction display.
Press and hold: RIn the Audio menu: selects the previous/next station or selects an audio track or a video scene using rapid scrolling RIn the Tel (Telephone) menu: starts rapid scrolling of the phone book if it is open
a RConfirms selection/display mes-
sage RIn the Tel (Telephone) menu: switches to the telephone book and starts dialling the selected number RIn the Audio menu: stops the station search function at the desired station
Right control panel
~ RRejects or ends a call
RExits telephone book/redial
memory
6 RMakes or accepts a call
RSwitches to the redial memory RAdjusts the volume
8 RMute
Example: automatic transmission multifunction display : Text field ; Menu bar = Drive program ? Time A Permanent display: outside temperature
or speed (Y page 231) B Transmission position X To show the menu bar;: press the
= or ; button on the steering wheel. Menu bar ; disappears after a few seconds.
222 Displays and operation (12-button multifunction steering wheel)
Text field : shows the selected menu or submenu as well as display messages. i You can set the time using the audio sys- tem or COMAND Online, see the separate operating instructions.
Vehicles with manual transmission: the indicators in the lower part of the multifunc- tion display differ from the display shown here. The following messages may appear in the multifunction display:
Gearshift recommendation, manual transmission (Y page 158) or auto- matic transmission (Y page 163) Parking Guidance (Y page 194)
XjY ¯ Cruise control (Y page 174) È SPEEDTRONIC (Y page 177) _ Adaptive Highbeam Assist
¤ ECO start/stop function
(Y page 123)
(Y page 153)
ë HOLD function (Y page 188) 120 km/h! Maximum permissible speed excee-
ded (only for certain countries)
cles with COMAND Online. The examples given in this Owner's Manual apply to vehicles equipped with COMAND Online.
Trip menu Standard display
X Press and hold the % button on the steering wheel until the Trip menu with trip meter : and total distance recorder ; is shown.
Trip computer "From start" or "From reset"
Menu overview Operating the on-board computer (Y page 220). Depending on the equipment fitted in the vehicle, you can call up the following menus: RTrip menu (Y page 222) RNavi menu (navigation instructions) (Y page 224) RAudio menu (Y page 225) RTel menu (telephone) (Y page 226) RAssist. menu (assistance) RService menu (Y page 230) RSettings menu (settings) (Y page 230) RAMG menu in AMG vehicles (Y page 236) The Audio, Navi and Tel menus differ slightly in vehicles with an audio system and in vehi-
Example: "From start" trip computer : Distance ; Time = Average speed ? Average fuel consumption X Press the = or ; button on the steer- ing wheel to select the Trip menu. X Press the 9 or : button to select From start or From reset. The values in the From start submenu are calculated from the start of a journey whilst the values in the From reset submenu are calculated from the last time the submenu was reset (Y page 223).
223
Displays and operation (12-button multifunction steering wheel) The From start trip computer is automati- cally reset if: Rthe ignition has been switched off for more
If the ignition remains switched off for longer than four hours, the ECO display will be auto- matically reset. For further information on the ECO display, see (Y page 171).
than four hours.
R999 hours have been exceeded. R9,999 kilometres have been exceeded. The From reset trip computer is automati- cally reset if the value exceeds 9,999 hours or 99,999 kilometres.
Displaying the range and current fuel consumption
X Press the = or ; button on the steer- ing wheel to select the Trip menu. X Press the 9 or : button to select the current fuel consumption and the approxi- mate range (except for AMG vehicles).
The approximate range which can be covered depends on the fuel level and your current driving style. If there is only a small amount of fuel left in the fuel tank, the display shows a vehicle being refuelled C instead of the range.
ECO display
Example: ECO display X Press the = or ; button on the steer- ing wheel to select the Trip menu. X Press the 9 or : button to select ECO DISPLAY.
Digital speedometer
: Gearshift recommendation, manual trans- mission (Y page 158) or automatic trans- mission (Y page 163) ; Digital speedometer X Press the = or ; button on the steer- ing wheel to select the Trip menu. X Press the 9 or : button to select the
digital speedometer.
Resetting values
Example: resetting the trip computer "From start" X Press the = or ; button on the steer- ing wheel to select the Trip menu. X Press the 9 or : button to select the
function that you wish to reset. X Press the a button. X Press the : button to select Yes and press the a button to confirm.
You can reset the values of the following func- tions: Rtrip meter Rtrip computer "From start"
224 Displays and operation (12-button multifunction steering wheel)
Rtrip computer "From reset" RECO display i If you reset the values in the ECO display, the values in the "From start" trip computer are also reset. If you reset the values in the "From start" trip computer, the values in the ECO display are also reset.
Navigation menu Displaying navigation instructions In the Navi menu, the multifunction display shows navigation instructions. For more information, see the separate operating instructions. X Switch on the audio system with Becker®
MAP PILOT or COMAND Online; see the separate operating instructions. X Press the = or ; button on the steer- ing wheel to select the Navi menu.
Route guidance not active
: Direction of travel ; Current road
Activating route guidance No change of direction announced
: Distance to the destination ; Distance to the next change of direction
= Current road ? Symbol indicating "follow the road's
course"
Change of direction announced without a lane recommendation
: Road to which the change of direction
leads
; Distance to change of direction and visual
distance display
= Change-of-direction symbol When a change of direction is announced, you will see symbol = for the change of direction and distance graphic ;. This shortens towards the top of the display as you approach the point of the announced change of direction. Change of direction announced with a lane recommendation
: Road to which the change of direction
leads
; Distance to change of direction and visual
distance display
= New lane during a change of direction ? Lane continues through change of direc-
tion
A Lane recommendation B Change-of-direction symbol On multilane roads, the system can display lane recommendation A for the next change
Displays and operation (12-button multifunction steering wheel)
225
of direction. During the change of direction, additional lanes may be displayed. Lane recommendations are only displayed if the relevant data is available on the digital map.
Other status indicators of the naviga- tion system RO: you have reached the destination or an intermediate destination. RNew route... or Calculating route: calculating a new route ROff map or Off road: the vehicle position is outside the area of the digital map (off- map position). RNo route: no route could be calculated to the selected destination.
X To select a stored station: briefly press
the 9 or : button.
X To select a station from the station
list: press and briefly hold the 9
or : button.
If no station list is received:
X To select a station using the station
search: press and briefly hold the 9
or : button.
i For information on switching wavebands and storing stations, see the separate oper- ating instructions.
i DAB radio mode (Digital Audio Broadcast-
ing); see the separate operating instruc- tions.
Audio player or audio media operation