Login- Download PDF Manual
-
selector wheel :. Selector wheel : extends.
X To select: turn selector wheel : until
indicator lamp ; comes on. Trailer indicator = appears in the multifunction display.
RHighway level is set.
RADS (Adaptive Damping System) adapts comfortable damping characteristics to the current operating and driving conditions.
RThe automatic transmission selects the
automatic drive program for a comfortable driving style that provides for optimum fuel consumption, changing gear at optimum points.
RWhile pulling away, the differential locks
are engaged.
Off-road driving systems
4MATIC (permanent four-wheel drive)
If you fail to adapt your driving style, 4MATIC can neither reduce the risk of accident nor override the laws of physics. 4MATIC cannot take account of road, weather and traffic conditions. 4MATIC 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 your lane.
! Never tow the vehicle with one axle
raised. This may damage the transfer case. Damage of this sort is not covered by the Mercedes-Benz Limited Warranty. All wheels must remain either on the ground or be fully raised. Observe the instructions for towing the vehicle with all wheels in full contact with the ground.
! A function or performance test should
only be carried out on a two-axle dynamometer. Before you operate the vehicle on such a dynamometer, please consult a qualified workshop. You could
otherwise damage the drive train or the brake system.
4MATIC ensures that all four wheels are permanently driven. Together with ESP® and 4ETS, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if you use winter tires (M+S tires), with snow chains if necessary.
Further information about "Driving off-road" (Y page 191).
DSR (Downhill Speed Regulation)
Important safety notes
DSR assists you when driving downhill. It keeps the speed of travel at the speed set on the on-board computer. The steeper the downhill gradient, the greater the DSR braking effect on the vehicle. When driving on flat stretches of road or on an uphill gradient, the DSR braking effect is minimal or nonexistent.
DSR controls the set speed when it is active and the automatic transmission is in the D, R or N position. By accelerating or braking, you can always drive at a higher or a lower speed than that set on the on-board computer.
Further information about "Driving off-road" (Y page 191).
If you fail to adapt your driving style, DSR can neither reduce the risk of accident nor override the laws of physics. DSR cannot take account of road, weather and traffic conditions. DSR 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 your lane.
You are always responsible for keeping control of the vehicle and for assessing whether the downhill gradient can be managed. DSR may not always be able to keep to the set speed, depending on road
Driving systems
251
surface and tire conditions. Select a set speed suitable for the prevailing conditions and when necessary, apply the brakes manually.
If the current vehicle speed is too high, the à DSR symbol appears in the multifunction display with the Max. Speed 25 mph message (Canada: 40 km/h).
G WARNING If the speed driven and the set speed deviate and you activate DSR on a slippery road surface, the wheels may lose traction. If the wheels lose traction. the vehicle can no longer be steered. There is an increased danger of skidding and accidents.
Never activate DSR on slippery road surfaces.
Activating DSR
G WARNING If you drive faster than the set speed and activate DSR, the vehicle will decelerate on downhill gradients. If you do not know the set speed, the vehicle could decelerate unexpectedly. There is a risk of an accident.
Decelerate the vehicle to the set speed before activating DSR. If you do not know what the stored set speed is, store the desired set speed again.
i You cannot activate DSR if the SPORT on- road program is activated. The à DSR symbol and the Not in Drive Program SPORT message then appear in the multifunction display.
Deactivating DSR
X Press button :.
Indicator lamp ; goes out. The à DSR symbol appears in the multifunction display with the Off message.
DSR switches off automatically if you drive faster than 28 mph (Canada: 45 km/h). The à DSR symbol appears in the multifunction display with the Off message. The status indicator in the multifunction display goes out. You also hear a warning. On vehicles with the ON&OFFROAD package, if you select a different on-road/off-road program, DSR is also deactivated.
Changing the set speed
Example: vehicles with the ON&OFFROAD package : DSR button
; DSR indicator lamp
X Press button :.
Indicator lamp ; lights up. The à DSR symbol appears in the multifunction display.
You can only activate DSR when driving at speeds below 25 mph (40 km/h).
252 Driving systems
X To increase or decrease in 1 mph
increments (Canada: 1 km/h increments): briefly press the cruise control lever up : for a higher set speed or down ; for a lower set speed. The set speed appears in the multifunction display with theà DSR symbol. It is also displayed in status indicator =.
When DSR is activated, you can change the set speed to a value between 1 mph and 11 mph (Canada: between 2 km/h and 18 km/h).
i The DSR set speed is always changed in
1 mph increments (Canada: 1 km/h increments). This is regardless of whether you press the cruise control lever to or beyond the pressure point.
Off-road program (vehicles without the
ON&OFFROAD package)
: Off-road program button
; Off-road program indicator lamp
X To switch on: press button :.
Indicator lamp ; lights up. The Ç off- road indicator appears in the multifunction display.
X To switch off: press button :.
Indicator lamp ; and the Ç off-road indicator go out in the multifunction display.
The off-road program assists you in driving off-road. The engine’s performance characteristics and the gearshifting
characteristics of the automatic transmission are adapted for this purpose. ABS, ESP® and 4ETS programs especially adapted to off-road driving are activated. A gentle accelerator pedal curve is also selected, i.e. the accelerator pedal must be depressed much further in order to accelerate.
Do not use the off-road program on roads that are snow-covered or icy or if you have mounted snow chains on your vehicle.
For information about driving off-road, see (Y page 191).
Off-road programs (vehicles with the
ON&OFFROAD package)
General notes
The off-road programs assist you in driving off-road. The engine’s performance characteristics and the gearshifting characteristics of the automatic transmission are adapted for this purpose. ABS, ESP® and 4ETS programs especially adapted to off-road driving are activated. An accelerator pedal curve suitable for the terrain is selected, i.e. the accelerator pedal must be depressed further to accelerate.
Do not use the off-road programs on roads that are snow-covered or icy or if you have mounted snow chains on your vehicle.
For information on driving off-road, see (Y page 191).
The following program messages are shown in the multifunction display until the applicable vehicle level is set. Up to off-road level 2, you can hide the program messages using the % or the a button on the multifunction steering wheel.
Off-road program 1
Off-road program 2
Driving systems
253
X Selector wheel : engaged: briefly press
X Selector wheel : engaged: briefly press
selector wheel :. Selector wheel : extends.
selector wheel :. Selector wheel : extends.
X To select: turn selector wheel : until
X To select: turn selector wheel : until
indicator lamp ; comes on. Off-road indicator = appears in the multifunction display.
indicator lamp ; comes on. Off-road indicator = appears in the multifunction display.
Off-road level 1 is set to +1.2 in (+ 30 mm) above the highway level.
ROff-road level 1 is set to +2.4 in
(+60 mm) above the highway level.
If you drive at a speed above 70 mph (110 km/h), off-road program 1 switches to AUTO program.
Select off-road program 1 for gentle off-road terrain, e.g. for gravel or sand surfaces or tracks. The engine's torque is restricted to a limited degree and the drive wheels can spin. The spinning wheels produce a cutting effect for better traction.
You can only activate off-road program 1
when driving at speeds below 60 mph (100 km/h). The Drive Program OFFROAD 1 Max Speed 60 mph (100 km/h) message appears in the multifunction display.RDSR is switched on.
RThe differential lock is closed.
Off-road program 2 automatically switches to off-road program 1 if you drive faster than 30 mph (45 km/h).
Select off-road program 2 for rough terrain, e.g. for steep and/or rough terrain or driving on rocky terrain.
i Your vehicle has an automatically
activated differential lock for the transfer case. It controls the balance between the front and rear axles.
254 Driving systems
The differential lock improves the vehicle’s traction. 4ETS (Y page 71) controls the balance between both wheels on an axle.
General notes
You can only activate off-road program 2
when driving at speeds below 25 mph (40 km/h).LOW RANGE off-road gear (vehicles
with the ON&OFFROAD package)
Important safety notes
G WARNING If you select the LOW RANGE off-road gear on a slippery road surface, the wheels could lose traction:
Rif you remove your foot from the
accelerator pedal when driving
Rif off road ABS intervenes when braking
If the wheels lose traction. the vehicle can no longer be steered. There is an increased danger of skidding and accidents.
Never select the LOW RANGE off-road gear when driving on slippery road surfaces.
G WARNING If you do not wait for the transfer case gear change process to complete, the transfer case could remain in the neutral position. The power transmission to the driven wheels is then interrupted. There is a danger of the vehicle rolling away unintentionally. There is a risk of an accident.
Wait until the transfer case shift process is completed.
Do not turn off the engine while changing gear and do not shift the automatic transmission to another position.
: LOW RANGE off-road gear button
; LOW RANGE off-road gear indicator lamp
HIGH RANGE Position for all normal on-
road driving conditions
LOW RANGE Off-road position for driving off-road and fording
The transmission ratio between the engine and wheels is only approximately one third of that in the HIGH RANGE road position. Drive torque is thus proportionately higher.
Do not use LOW RANGE:
Ron slippery road
surfaces, e.g. in the case of slush
Ron snow or ice-covered
roads
Rif you have mounted snow chains to your vehicle
The LOW RANGE off-road gear assists you in driving off-road and when fording. When LOW RANGE is engaged, the engine’s performance characteristics and the gearshifting characteristics of the automatic transmission are adapted for this purpose.
Further information about "Driving off-road" (Y page 191). You will find information about driving safety systems in conjunction with LOW RANGE in the "Safety" section (Y page 66).
From HIGH RANGE to LOW RANGE ! Only change from LOW RANGE to HIGH
RANGE if:
Rthe engine is running.
Rthe transmission is in position N
Ryou are driving at a speed below
40 km/h
X Press LOW RANGE button :.
Indicator lamp ; flashes.
When the gear change is complete, indicator lamp ; lights up. LOW RANGE indicator appears in the multifunction display and in the status indicator.
While indicator lamp ; is flashing, you can cancel the gear change by pressing LOW RANGE button : again.
i You cannot activate LOW RANGE if the SPORT on-road program is activated. The LOW RANGE Not in Drive Program SPORT message then appears in the multifunction display.
From LOW RANGE to HIGH RANGE ! Only change from LOW RANGE to HIGH
RANGE if:
Rthe engine is running.
Rthe transmission is in position N
Ryou are driving at a speed below
70 km/h
X Press LOW RANGE button :.
Indicator lamp ; flashes.
When the gear change is complete, indicator lamp ; goes out. In the multifunction display, the LOW RANGE Off message appears and status indicator = goes out.
Driving systems
255
While indicator lamp ; is flashing, you can cancel the gear change by pressing LOW RANGE button : again.
256 Driving systems
Messages in the multifunction display
If a gear change process has not been successful, the following messages may be displayed in the multifunction display:
Display messages
Possible causes/consequences and M Solutions
LOW RANGE Max. Speed 40 km/h
You have been driving faster than 40 km/h. Additionally, the indicator lamp on the button in the center console blinks.
X Drive more slowly to carry out the gear change process.
LOW RANGE Shift to Position N Briefly
The transmission is in position D and you are driving at below 40 km/h.
X Shift the transmission to N to complete the gear change
process.
LOW RANGE Shifting Canceled Please Reactivate
The gear change process was not carried out.
X Ensure that all gear change conditions are fulfilled and carry out
the gear change process again.
LOW RANGE Stop Apply Parking Brake
A warning tone also sounds. The gear change process has not been completed. LOW RANGE is in the neutral position. There is no connection between the engine and the drive wheels.
! Do not drive any further. You could otherwise damage the
vehicle's drive train.
X Stop the vehicle. Take into account the road and traffic
conditions when doing this.
X Depress the electric parking brake (Y page 184).
X Carry out the gear change process again.
If the gear change process has been carried out, the LOW RANGE Stop Apply Parking Brake message disappears.
ON&OFFROAD menu in the COMAND
display (vehicles with the
ON&OFFROAD package)
You can display some driving systems, driving programs and additional information in the COMAND display.
X Make sure that the SmartKey is in position
2 in the ignition lock.
X Make sure that COMAND is activated, see
the separate COMAND operating instructions.
X Press function button :.
The corresponding displays appear in the COMAND display:
Rlevel control
Rsteering angle
Rvehicle's angle of inclination
Ruphill or downhill gradient in percentage
Ron-road/off-road program selected
Rcondition of the differential lock for the
transfer case
Rthe LOW RANGE off-road gear is selected
Rcondition of the LOW RANGE off-road
gear
Rthe on-road trailer program is selected
Towing a trailer
Notes on towing a trailer
Important safety notes
G WARNING If you install a ball coupling other than the one delivered with the vehicle, the trailer tow hitch and the rear axle may be overloaded. This applies especially if the ball coupling in question is longer or angled differently. This could seriously impair the driving characteristics and the trailer can come loose. There is a risk of an accident.
Only install the ball coupling delivered with the vehicle or a ball coupling that is designed to meet your trailer towing requirements. Do not modify the ball coupling or the trailer tow hitch.
G WARNING If the ball coupling is not installed correctly or not secured with the bolt provided and the corresponding spring cotter, the trailer may come loose. There is a risk of an accident.
Always install and secure the ball coupling as described. Before every journey, ensure that the ball coupling is secured with the bolt and the corresponding spring cotter.
G WARNING If you rest your foot on the brake pedal while driving, the braking system can overheat. This increases the stopping distance and can even
Towing a trailer
257
cause the braking system to fail. There is a risk of an accident.
Never use the brake pedal as a footrest. Never depress the brake pedal and the accelerator pedal at the same time.
G WARNING When the vehicle/trailer combination begins to lurch, you could lose control of it. The vehicle/trailer combination could even rollover. There is a risk of an accident.
On no account should you attempt to straighten up the vehicle/trailer combination by increasing the speed. Reduce vehicle speed and do not countersteer. Apply the brake as necessary.
! Depressing the brake pedal constantly
results in excessive and premature wear to the brake pads.
Please observe the manufacturer's operating instructions for the trailer coupling if a detachable trailer coupling is used.
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
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 manufacturer on the vehicle identification
258 Towing a trailer
plates and those for the towing vehicle under "Technical data" (Y page 449).
When towing a trailer, your vehicle's handling characteristics will be different in comparison with when driving without a trailer.
The vehicle/trailer combination:
Ris heavier
Ris restricted in its acceleration and
gradient-climbing capability
Rhas an increased braking distance
Ris affected more by strong crosswinds
Rdemands more sensitive steering
Rhas a larger turning radius
This could impair the handling characteristics.
When towing a trailer, always adjust your speed to the current road and weather conditions. Do not exceed the maximum permissible speed for your vehicle/trailer combination.
General notes
RDo not exceed the legally prescribed
maximum speed for vehicle/trailer combinations in the relevant country.
This lowers the risk of an accident.
ROnly install an approved trailer coupling on
your vehicle.
Further information on availability and on installation is available from any authorized Mercedes-Benz Center.
RThe bumpers of your vehicle are not
suitable for installing detachable trailer couplings.
RDo not install hired trailer couplings or
other detachable trailer couplings on the bumpers of your vehicle.
RIf you no longer need the ball coupling, remove it from the ball coupling recess. This will reduce the risk of damage to the ball coupling.
i When towing a trailer, set the tire
pressure on the rear axle of the towing
vehicle for a maximum load; see the tire pressure table in the fuel filler flap (Y page 421).
You will find installation dimensions and loads in the "Technical data" section (Y page 448).
The maximum noseweight of the trailer drawbar on the ball coupling is 600 lbs (272 kg).
The actual noseweight may not be higher than the value which is given. The value can be found on the trailer tow hitch or trailer identification plates. The lowest weight applies.
Please note that when towing a trailer, PARKTRONIC (Y page 217) and Blind Spot Assist (Y page 237) are only available with limitations, or not at all.
Driving tips
i Observe the information on ESP® trailer
stabilization (Y page 72) and on pulling away with a trailer (Y page 166).
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 maximum permissible speed is. Observe the legally prescribed maximum speed in the relevant country.
For certain Mercedes-Benz vehicles, the maximum permissible rear axle load is increased when towing a trailer. See "Technical data" to find out whether this applies to your vehicle (Y page 449). If you utilize any of the added maximum rear axle load when towing a trailer, the vehicle/trailer combination may not exceed a maximum speed of 60 mph (100 km/h) for reasons concerning the operating permit. This also applies in countries in which the permissible maximum speed for vehicle/trailer combinations is above 60 mph (100 km/h).
When towing a trailer, your vehicle's handling characteristics will be different in comparison with when driving without a trailer.
On long and steep downhill gradients, you must select shift range 1, 2 or 3 in good time.
i This also applies if you have activated
cruise control or DISTRONIC PLUS.
This will use the braking effect of the engine, so that less braking will be required to maintain the speed, This relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly. If you need additional braking, depress the brake pedal repeatedly rather than continuously.
Driving tips
If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary.
RMaintain a greater distance from the
vehicle 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, decreases with increasing altitude.
Installing the ball coupling
G WARNING If the ball coupling is not installed and secured correctly it can become detached while the vehicle is in motion and fall onto the road. There is a risk of accident and injury.
Towing a trailer
259
Always install and secure the ball coupling as described. Before every journey, ensure that the ball coupling is secured with the bolt and the corresponding spring cotter.
G WARNING If the ball coupling is not installed correctly or not secured with the bolt provided and the corresponding spring cotter, the trailer may come loose. There is a risk of an accident.
Always install and secure the ball coupling as described. Before every journey, ensure that the ball coupling is secured with the bolt and the corresponding spring cotter.
G WARNING If the ball coupling is not installed and secured correctly the trailer may come loose. There is a risk of an accident.
Install and secure the ball coupling as described in the ball coupling installation instructions. Make sure that the ball coupling is installed and secured correctly before every journey.
Cover cap
X Pull protective cap : in the direction of the
arrow, out of the ball coupling recess.
X Place protective cap : in the ball coupling
recess.
260 Towing a trailer
Ball coupling recess
Bolt and spring cotter
X Secure the bolt using spring cotter B.
Holes in the ball coupling and ball coupling recess
X Insert the ball coupling horizontally into ball
coupling recess ; in the direction of the arrow until the holes in ball coupling = are in line with the holes in ball coupling recess ?.
Bolt
X Slide bolt A into the hole in the ball
coupling recess and the ball coupling to the stop.
Correctly installed and secured ball coupling X Check the ball coupling, bolt and spring
cotter for correct installation.
If the ball coupling cannot be correctly mounted, remove the ball coupling. Under these circumstances, the ball coupling must not be used for trailer towing.
If the ball coupling cannot be locked and the key cannot be removed, remove the ball coupling and clean it. If the ball coupling can still not be installed (locked) after it has been cleaned, remove the ball coupling. The trailer tow hitch must then not be used to tow a trailer, as safe operation cannot be guaranteed.
Have the entire trailer tow hitch checked at a qualified specialist workshop.
Coupling up a trailer
! Do not connect the trailer's brake system (if featured) to the hydraulic brake system
Towing a trailer
261
of the towing vehicle, as the latter is equipped with an anti-lock brake system. Doing so will result in a loss of function of the brake systems of both the vehicle and the trailer.
X Make sure that the automatic transmission
is set to position P.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Vehicles with the AIRMATIC package:
select highway level.
X Vehicles with ADS: set ADS to AUTO or
COMF.
X Switch off the engine.
X Close all doors and the tailgate.
X Couple up the trailer.
X Establish all electrical connections.
X Check that the trailer lighting system is
working.
i Vehicles with the AIRMATIC package: with a trailer attached, the vehicle will always remain at highway level. When coupling up a trailer, please observe the following:
RUnless highway level has been set
manually, the vehicle is automatically lowered to highway level. This is the case if a speed of 5 mph (8 km/h) is reached.
RHigh-speed level is not available.
These restrictions apply to all accessories powered through a connection to the trailer power socket of your vehicle, e.g. a bicycle carrier.
Observe the maximum permissible trailer dimensions (width and length).
Most U.S. states and all Canadian provinces require by law:
RSafety chains between the towing vehicle and the trailer. The chains should be cross- wound under the trailer drawbar. They must be fastened to the vehicle's trailer coupling, not to the bumper or the axle.
Leave enough play in the chains to make tight cornering possible.
RA separate brake system for certain types
of trailer.
RA safety switch for braked trailers. Check the specific legal requirements applicable to your state.
If the trailer detaches from the towing vehicle, the safety switch applies the trailer's brakes.
Towing a trailer
There are numerous legal requirements concerning the towing of a trailer, e.g. speed restrictions. Make sure that your vehicle/ trailer combination complies with the local requirements not only in your area of residence but also at any location to which you are traveling. The police and local authorities can provide reliable information.
Please observe the following when towing a trailer:
RTo acquaint yourself with driving with a trailer and with the resulting changes to handling, you should practice cornering, stopping and backing up in a traffic-free location.
RBefore driving, check:
- Trailer tow hitch
- Safety switch for braked trailers
- Safety chains
- Electrical connections
- Lights
the wheels
RAdjust the exterior mirrors to provide an
unobstructed view of the rear section of the trailer.
RIf the trailer features electronically
controlled brakes, pull away the vehicle/ trailer combination carefully, manually brake using the brake controller, and check the brakes for correct function.
262 Towing a trailer
RSecure any objects on the trailer to prevent the cargo from slipping when the vehicle is in motion.
RIf you couple up a trailer, regularly check the cargo for secure fastening and make sure that the trailer lamps and (if applicable) the trailer brakes are functioning correctly.
RBear in mind that the handling will be less
stable when towing a trailer than when driving without one. Avoid sudden steering movements.
RThe vehicle/trailer combination is heavier, accelerates more slowly, has a decreased gradient climbing capability and a longer braking distance.
It is more susceptible to side winds and requires more careful steering.
RIf possible, avoid abrupt braking. Depress the brake pedal moderately at first, so that the trailer can activate its own brakes. Then increase the pressure on the brake pedal.
RIf the automatic transmission continues to
shift back and forth between two gears when driving up or downhill, restrict the shift range. Select shift range 4, 3, 2, or 1.
A lower gear and lower speed reduce the risk of engine failure.
Due to the length of your vehicle/trailer combination, you will have to travel an additional distance beyond the vehicle you are overtaking before returning to the previous lane.
Decoupling a trailer
G WARNING If you uncouple a trailer with the overrun brake engaged, you could trap your hand between the vehicle and the trailer drawbar. There is a risk of injury.
Do not uncouple a trailer if the overrun brake is engaged.
G WARNING Vehicles with level control:
The vehicle is lowered as soon as you disconnect the trailer cable. This could result in your limbs or those of other people that are between the vehicle body and tires or underneath the vehicle being trapped. There is a risk of injury.
Make sure that nobody is in the immediate vicinity of the wheel housings or under the vehicle when you disconnect the trailer cable.
RWhen driving downhill, shift to a lower gear
! Do not disconnect a trailer with an
to utilize the engine's braking effect.
Avoid continuous brake application as this may overheat the vehicle brakes and, if installed, the trailer brakes.
engaged overrun brake. Otherwise, your vehicle could be damaged by the rebounding of the overrun brake.
X Make sure that the automatic transmission
RIf the coolant temperature increases
is set to position P.
dramatically while the air-conditioning system is switched on, switch off the air- conditioning system.
Coolant heat can additionally be dissipated by opening the windows and by setting the blower fan and the interior temperature to maximum.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Close all doors and the tailgate.
X Apply the trailer's parking brake.
X Detach the trailer cable and decouple the
trailer.
RWhen overtaking, pay particular attention
X Switch off the engine.
to the extended length of your vehicle/ trailer combination.
Towing a trailer
263
Permissible trailer loads and drawbar
loads
Weight specifications
i The weight of additional accessories,
passengers, and cargo reduces the permissible trailer load and drawbar load for your vehicle.
Maximum permissible gross vehicle
weight rating
The gross trailer weight is calculated by adding the weight of the trailer to the weight of the load and equipment on the trailer.
Permissible gross weight: 7,500 lb (3,402 kg).
Permissible noseweight
The maximum permissible trailer drawbar noseweight is the maximum weight with which the trailer drawbar can be loaded: 600 lbs (272 kg).
Limit for Mercedes-Benz-approved trailer couplings.
Loading a trailer
Checking the vehicle and trailer weight
RTo check that the weights of the towing
vehicle and the trailer comply with the maximum permissible values, have the vehicle/trailer combination (including the driver, passengers, and cargo with a fully laden trailer) weighed on a calibrated weighbridge.
RCheck the gross axle weight rating of the
front and rear axles, the gross weight of the trailer and trailer drawbar load.
Removing the ball coupling
X Remove the spring cotter.
X Remove the bolt from the ball coupling
RWhen loading the trailer, make sure that
recess.
X Remove the ball coupling from the ball
coupling recess.
X Clean the ball coupling if it is dirty.
Information on cleaning and care of the trailer tow hitch can be found at (Y page 376).
Storing the ball coupling
G WARNING Do not carry the ball coupling in the vehicle interior if it is not secured.
Otherwise, you and others could be injured by the ball coupling being thrown around if you:
Rbrake sharply
Rchange direction suddenly
Rare involved in an accident
neither the permissible gross weight of the trailer nor the gross vehicle weight is exceeded. The permissible gross vehicle weight is indicated on the identification plate on the B-pillar on the driver's side of the vehicle.
You can find the maximum permissible values on the type plates of your vehicle and the trailer. When calculating how much weight the vehicle and trailer may carry, pay attention to the respective lowest values.
RThe trailer drawbar load on the ball coupling must be added to the rear axle load to avoid exceeding the permissible gross axle weight. The permissible gross vehicle weight is indicated on the identification plate on the B-pillar on the driver's side of the vehicle.
i Mercedes-Benz recommends a trailer
load where the trailer drawbar noseweight accounts for 8% to 15% of the trailer's permissible gross weight.
264 Towing a trailer
Trailer power supply
! You can connect accessories with a
maximum power consumption of 240 W to the permanent power supply.
You must not charge a trailer battery using the power supply.
The trailer socket of your vehicle is equipped at the factory with a permanent power supply.
The permanent power supply is supplied via trailer socket pin 4.
The trailer's permanent power supply is switched off in the event of low vehicle supply voltage and after six hours at the latest.
A qualified specialist workshop can provide more information about installing the trailer electrics.
Useful information ............................ 266
Important safety notes .................... 266
Displays and operation .................... 267
Menus and submenus ...................... 270
Display messages ............................. 286
Warning and indicator lamps in the instrument cluster ............................ 320
265
multifunction display. You should therefore make sure your vehicle is operating safely at all times. Otherwise, a vehicle that is not operating safely may cause an accident.
For an overview, see the instrument panel illustration (Y page 33).
266
Important safety notes
Useful information
i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.
i Read the information on qualified specialist workshops: (Y page 28).
Important safety notes
G WARNING If you operate information systems and communication equipment integrated in the vehicle while driving, you will be distracted from traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic situation permits. If you are not sure that this is possible, park the vehicle paying attention to traffic conditions and operate the equipment when the vehicle is stationary.
G WARNING If the instrument cluster has failed or malfunctioned, you may not recognize function restrictions in systems 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 immediately.
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
Displays and operation
Instrument cluster
Displays and operation 267
Instrument cluster: miles : Speedometer with segments (Y page 268)
; Fuel gauge
= Tachometer (Y page 268)
? Coolant temperature (Y page 267)
A Multifunction display (Y page 269)
B Instrument cluster lighting (Y page 267)
Instrument cluster lighting
The lighting in the instrument cluster, in the displays and the controls in the vehicle interior can be adjusted using the brightness control knob.
The brightness control knob is located on the bottom left of the instrument cluster (Y page 33).
X Turn the brightness control knob clockwise
or counter-clockwise. If the light switch is set to Ã, T or L, the brightness is dependent 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 display
G WARNING Driving when your engine is overheated can cause some fluids which may have leaked into the engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
268 Displays and operation
vehicle and do not stand near the vehicle until the engine has cooled down.
One or two segments in the set speed range light up.
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡(120 †), do not continue driving. The engine will otherwise be damaged.
The coolant temperature gauge is in the instrument cluster on the right-hand side (Y page 33).
Under normal operating conditions and with the specified coolant level, the coolant temperature may rise to 248 ‡ (120 †).
Tachometer
! Do not drive in the overrevving range, as
this could damage the engine.
The red band in the tachometer indicates the engine's overrevving range.
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 conditions when temperatures are around freezing point.
The outside temperature display is in the multifunction display (Y page 269).
Changes in the outside temperature are displayed after a short delay.
Speedometer with segments
The segments in the speedometer indicate which speed range is available.
RCruise control activated (Y page 195):
The segments light up from the stored speed to the maximum speed.
RDISTRONIC PLUS activated (Y page 198):
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
: Multifunction display
; Switches on the Voice Control System; see the separate operating instructions
= Right control panel
? Left control panel
A Back button
X To activate the on-board computer: turn
the SmartKey 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.
Displays and operation 269
RAdjusts the volume
8 RMute
Back button
% Press briefly:
RBack
RSwitches off the Voice Control
System; 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
Left control panel
RCalls up the menu and menu bar
Press briefly:
RScrolls in 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
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 if the phone book is open
a RConfirms a selection/display
message
RIn the Tel (telephone) menu:
switches to the telephone book and starts dialing 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 phone book/redial
memory
6 RMakes or accepts a call
: Time
RSwitches to the redial memory
; Permanent display: outside temperature
or speed (Y page 278)
= Text field
? Menu bar
270 Menus and submenus
A Drive program (Y page 169)
Menus and submenus
B Transmission position (Ypage 169)
X To show menu bar?: press the = or ; button on the steering wheel.
Menu bar ? disappears after a few seconds.
Menu overview
Press the = or ; button on the steering wheel to call up the menu bar and select amenu.
Text field = shows the selected menu or submenu as well as display messages.
Operating the on-board computer (Y page 268).
i You can set the time using the audio system or COMAND; see the separate operating instructions.
The following messages may appear in the multifunction display:
XjY
Active Parking Assist (Y page 221)
Cruise control (Y page 195)
CRUISE fDSR DSR (Y page 250) Ç Off-road program (vehicles without the ON&OFFROAD package) (Y page 252)
Depending on the equipment installed in the vehicle, you can call up the following menus:
RTrip menu (Y page 270)
RNavi menu (navigation instructions)
(Y page 272)
RAudio menu (Y page 273)
RTel menu (telephone) (Y page 274)
RDriveAssist menu (assistance)
(Y page 276)
RService menu (Y page 277)
RSettings menu (settings) (Y page 278)
RON&OFFROAD menu (Y page 282)
Ç Off-road program (vehicles with
RAMG menu in AMG vehicles (Y page 282)
the ON&OFFROAD package) (Y page 252)
LOW RANGE _ Adaptive Highbeam Assist
LOW RANGE off-road gear (Y page 254)
(Y page 130)
À ATTENTION ASSIST
(Y page 234)
à Lane Keeping Assist
(Y page 239)
à Active Lane Keeping Assist
(Y page 245)
ë HOLD function (Y page 211) Ä Distance warning function
(Y page 68)
Ä PRE-SAFE® Brake (Y page 73)
Trip menu
Standard display
X Press and hold the % button on the
steering wheel until the Trip menu with trip odometer : and odometer ; is shown.
Menus and submenus
271
Trip computer "From Start" or "From
Displaying the range and current fuel
Reset"
consumption
Example: trip computer "From Start" : Distance
; Time
= Average speed
? Average fuel consumption
X Press the = or ; button on the
steering wheel to select the Trip menu.
X Press 9 or : to select From Start
or From Reset.
The values in the From Start submenu are calculated from the start of a journey, while the values in the From Reset submenu are calculated from the last time the submenu was reset (Y page 272).
The From Start trip computer is automatically reset when:
RThe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
The From Reset trip computer is automatically reset if the value exceeds 9,999 hours or 99,999 miles.
: Approximate range
; Current fuel consumption (not for AMG
vehicles)
X Press the = or ; button on the
steering wheel to select the Trip menu.
X Press the9 or: button to select the
current fuel consumption (not for AMG vehicles) and the approximate range.
The approximate range that 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 refueled C instead of the range.
Digital speedometer
: Digital speedometer
X Press the = or ; button on the
steering wheel to select the Trip menu.
X Press the9 or: button to select the
digital speedometer.
272 Menus and submenus
Resetting values
Route guidance not active
Example: resetting the trip computer "From Start"
: Direction of travel
X Press the = or ; button on the
; Current street
steering wheel to select the Trip menu.
X Press the9 or: button to select the
Route guidance active
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 functions:
Rtrip odometer
R"From Start" trip computer
R"From Reset" trip computer
Navigation system menu
No change of direction announced
: Distance to the destination
