
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-dent are greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Pedals
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
Emission control
GWARNING
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon mon-
oxide (CO), and inhaling it can cause uncon-
sciousness and possible death.
Do not run the engine in confined areas (such as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are enter-
ing the vehicle while driving, have the cause
determined and corrected immediately. If you
must drive under these conditions, drive only
with at least one window fully open at all
times.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. For this reason,
all work on the engine should only be carried out by qualified and authorized Mercedes-Benz
technicians.
The engine settings must not be changed under
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found
in the Maintenance Booklet.
Braking
Important safety notes
GWARNING
If you activate the LOW off-road gear while
driving on a slippery road surface, the wheels
may lose traction:
Rif you remove your foot from the accelera-
tor 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 dan- ger of skidding and accidents.
Never activate the LOW off-road gear while
driving on a slippery road surface.
Downhill gradients
!On long and steep gradients, you must
reduce the load on the brakes by shifting early
to a lower gear. This allows you to take
advantage of the engine braking effect and
helps avoid overheating and excessive wear
of the brakes.
When you take advantage of the engine brak-
ing effect, a drive wheel may not turn for some
time, e.g. on a slippery road surface. This
could cause damage to the drive train. This
type of damage is not covered by the
Mercedes-Benz warranty.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Driving tips133
Driving and parking
Z

The following driving systems are specially
adapted to off-road driving:
R4ETS (Ypage 57)
RTransfer case (Ypage 162)
RDifferential locks (Ypage 162)
Observe the following notes:
Rstop your vehicle and, if necessary, shift the
transfer case to LOW RANGE(Ypage 162)
before driving off-road.
Rin transfer case position LOW RANGEthe
ECO start/stop function is not available
(
Ypage 114).
Rengage the differential locks, if necessary
(Ypage 165).
iABS, 4ETS, ESP®and BAS are deactivated
while the differential locks are engaged. This
allows the front wheels to lock briefly, so that
these can dig into a loose surface. However,
please note that locked wheels skid and can
no longer steer.
RCheck that items of luggage and loads are
stowed safely and are well secured
(
Ypage 219).
RTo avoid damaging the vehicle, make sure
there is always sufficient ground clearance.
RAlways keep the engine running and in gear
when driving on a downhill gradient.
RAlways keep the engine running and in gear
when driving on a slope.
RDrive slowly and evenly, if necessary at a
walking pace.
REnsure that the wheels are in contact with the
ground at all times.
RDrive with extreme care on unfamiliar off-road routes where visibility is poor. For safety rea-
sons, get out of the vehicle first and survey
the off-road route.
RCheck the depth of water before fording rivers
and streams.
RWhen fording, do not stop and do not switch
off the engine.
RLook out for obstacles, such as rocks, holes,
tree stumps and furrows.
RAlways keep the doors, rear door, side win-
dows and the sliding sunroof closed while the
vehicle is in motion.
RSwitch off cruise control.
RDo not stray from marked routes or paths.
RAdapt your speed to the terrain. The rougher,
steeper or more ruts on the terrain, the slower
your speed should be.
RDrive slowly and at an even speed through the
water. Ensure that a bow wave does not form
as you drive.
ROn sand, drive quickly to overcome the rolling resistance. Otherwise the vehicle's wheels
could become st
uck in loose ground.
RDo not jump with the vehicle as this will inter-
rupt the vehicle's propulsion.
RAvoid high engine speeds. Drive at appropri-
ate engine speeds (maximum 3,000 rpm).
RDo not shift the automatic transmission to
transmission position N.
RAlways check the vehicle for damage after off-
road driving.
iInformation about retrofitting special all-ter-
rain tires is available from any qualified spe-
cialist workshop.
iDo not use the HOLD function when driving
off-road, on steep uphill or downhill gradients
or on slippery or loose surfaces. The HOLD
function cannot hold the vehicle on such sur-
faces.
Checklist before driving off-road
!If the engine oil warning lamp lights up while
the vehicle is in motion, stop the vehicle in a
safe place as soon as possible. Check the
engine oil level. The engine oil warning lamp
warning must not be ignored. Continuing the
journey while the symbol is displayed could
lead to engine damage.
XOil level: check the engine oil level and add oil
if necessary.
Only then does the engine receive enough oil when the vehicle is on a steep incline.
XTire-changing tool kit: check that the jack is
working and make sure you have the lug
wrench, a robust tow cable and a folding
spade in the vehicle.
XWheels and tires: check the tire tread depth
and tire pressure.
XCheck for damage and remove any foreign
objects, e.g. small stones, from the wheels/
tires.
XReplace any missing valve caps.
138Driving tips
Driving and parking

Deactivating variable SPEEDTRONIC
There are severalways to deactivat evariable
SPEEDTRONIC:
XBriefly press th ecruise contro llever forwards
B.
or
XBriefly press th ecruise contro llever in th e
direction of arrow A.
LI M indicator lamp ;in th ecruise contro l
lever goe sout .Variable SPEEDTRONIC is
deactivated.
Cruise contro lis selected.
It is no tpossible to deactivat evariable SPEED-
TRONIC by braking .
If you depress th eaccelerator peda lbeyond th e
pressure poin t(kickdown), variable SPEED-
TRONIC is automatically deactivated .but only if
your curren tspeed doe sno tdiffe rby more than
12 mph from th estored speed. You will hear a
warnin gtone if this is th ecase.
DISTRONI CPLUS
Important safet ynotes
GWARNING
DISTRONIC PLU Sdoe sno treact to :
Rpeople or animals
Rstationary obstacles on th eroad, e.g. stop-
ped or parke dvehicles
Roncomin gand crossin gtraffic
As aresult ,DISTRONIC PLU Smay neither giv e
warnings no rinterven ein suc hsituations.
There is aris kof an accident.
Always pay careful attention to th etraffic sit -
uation and be ready to brake .
GWARNING
DISTRONIC PLU Scanno talways clearly iden -
tify other road user sand complex traffic sit -
uations.
In suc hcases, DISTRONIC PLU Smay:
Rgiv ean unnecessary warnin gand then
brake th evehicle
Rneither giv e awarnin gno rinterven e
Raccelerat eor brake unexpectedly
There is aris kof an accident.
Continue to drive carefully and be ready to
brake ,in particular when warned to do so by
DISTRONIC PLUS.
GWARNING
DISTRONIC PLU Sbrake syour vehicle wit hup
to 40 %of th emaximum braking force. If this
braking forc eis insufficient, DISTRONIC PLU S
warn syou visually and audibly. There is aris k
of an accident.
In suc hcases, apply th ebrake syoursel fand
tr y to take evasiv eaction .
GWARNING
If you cal lup th estored speed and it differs
from th ecurren tspeed, th evehicle acceler -
ates or decelerates. If you do no tknow th e
stored speed, th evehicle could accelerat eor
brake unexpectedly. There is aris kof an acci-
dent.
Pay attention to th eroad and traffic condi-
tion sbefor ecallin gup th estored speed. If you
do no tknow th estored speed, stor eth e
desire dspeed again .
If you fail to adapt your drivin gstyle, DISTRONIC
PLU Scan neither reduce th eris kof acciden tno r
override th elaws of physics. DISTRONIC PLU S
canno ttake accoun tof road, weather and traffic
conditions. DISTRONIC PLU Sis only an aid. You
are responsible fo rth edistanc eto th evehicle in
front, fo rvehicle speed, fo rbraking in goo dtime
and fo rstayin gin your lane. Only engage
DISTRONIC PLU Swhen th ecurren troad,
weather and traffic condition spermit it to be
don esafely, and adapt your drivin gstyle accord-
Driving systems14 7
Driving an d parking
Z

iWhen changing lanes, DISTRONIC PLUS
monitors the left lane on left-hand drive vehi-
cles and the right lane on right-hand drive
vehicles.
Stopping
GWARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
Rthere is a malfunction in the system or in
the voltage supply.
RDISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed, e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
If DISTRONIC PLUS detects that the vehicle in
front is stopping, it brakes your vehicle until it is stationary.
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the
brake.
iDepending on the specified minimum dis-
tance, your vehicle will come to a standstill at
a sufficient distance behind the vehicle in
front. The specified minimum distance is set
using the control on the cruise control lever.
On steep uphill or downhill inclines or if there is
a malfunction, the transmission may also auto-
matically be shifted into position P.
Displays in the instrument cluster
Displays in the speedometer
Example: DISTRONIC PLUS displays in the speed-
ometer
When DISTRONIC PLUS is activated, one or two
segments ;in the set speed range light up.
If DISTRONIC PLUS detects a vehicle in front,
segments ;between speed of the vehicle in
front :and stored speed =light up.
iFor design reasons, the speed displayed in
the speedometer may differ slightly from the
speed set for DISTRONIC PLUS.
Display when DISTRONIC PLUS is deacti-
vated
Distance display when DISTRONIC PLUS is deacti-
vated
:
Vehicle in front, if detected
;Distance indicator, current distance to the
vehicle in front
=Specified minimum distance to the vehicle
in front; adjustable
?Own vehicle
You can select the distance display in the Assis- tance menu (
Ypage 178) of the on-board com-
puter.
Driving systems151
Driving and parking
Z

HOLD function
General notes
The HOLD function can assist the driver in the
following situations:
Rwhen pulling away, especially on steep slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
iDo not use the HOLD function when driving
off-road, on steep uphill or downhill gradients
or on slippery or loose surfaces. The HOLD
function cannot hold the vehicle on such sur-
faces.
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
Rthe engine is running
Rthe driver's door is closed or your seat belt is
fastened
Rthe transmission is in position D,R or N
RDISTRONIC PLUS is deactivated
Activating the HOLD function
The vehicle's brakes are applied when the HOLD
function is activated. For this reason, deactivate
the HOLD function while in the car wash or while
towing.
XMake sure that the activation conditions are
met.
XDepress the brake pedal.
XQuickly depress the brake pedal further until
ë appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
iIf depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
The HOLD function is deactivated automatically if:
Ryou accelerate and the transmission is in
position Dor R.
Ryou shift the transmission to position P.
Ryou depress the brake pedal again with a cer-
tain amount of pressure untilëdisap-
pears from the multifunction display.
Ryou activate DISTRONIC PLUS.
On steep uphill or downhill gradients or if there
is a malfunction, the transmission may also be
automatically shifted into position P.
Permanent all-wheel drive
!
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 vehi-
cle with all wheels in full contact with the
ground.
!When testing the parking brake, operate the
vehicle only briefly (for a maximum of ten sec-
onds) on a brake test dynamometer. When
doing this, turn the SmartKey to position 0or
1 in the ignition. Failure to do this can cause
damage to the drive train or the brake system.
Driving systems157
Driving and parking
Z

XTo activate:make sure that the SmartKey is
in position 2in the ignition lock.
XMake sure that the "rear view camera" func-
tion is selected in COMAND (see the separate
operating instructions for COMAND).
XEngage reverse gear.
The area behind the vehicle is shown in the
COMAND display.
To deactivate: the rear view camera is deacti-
vated if you:
Rshift the transmission to position P
Rdrive forward ten meters
Rshift the transmission fromRto another posi-
tion after 15 seconds
Rdrive forwards at a speed of over 5 mph
(10 km/h)
Off-road driving systems
Transfer case
General notes
The vehicle has permanent all-wheel drive.
Power is always transmitted to both axles.
For further information on driving off-road, see
(
Ypage 137).
Shift ranges
GWARNING
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 switch off the engine while changing gear
and do not shift the automatic transmission to
another gear.
HIGH
RANGEPosition for all normal on-
road driving conditions
LOW RANGELow-range position for driving
off-road.
Also for use on steep uphill or
downhill gradients, especially
when towing a trailer.
The vehicle travels around
half the speed of on-road driv-
ing range HIGH RANGE . The
tractive power is correspond-
ingly higher.
Shifting the transfer case
Important safety notes
GWARNING
When the transfer case is in the neutral posi-
tion, power transmission to the driven wheels
is interrupted. As a result, the vehicle could
roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
Always wait for the gear change process from
HIGH RANGE toLOW RANGE and fromLOW
RANGE toHIGH RANGE to complete. Do not
switch off the engine while changing gear and do
not shift the automatic transmission to another
gear.
General notes
:Current shift range
162Off-road driving systems
Driving an d parking

:Indicator lamp
;LOW RANGE button
Switching on the off-road gear ratio
!Only carry out the gear selection if:
Rthe engine is running.
Rthe vehicle is rolling.
Rthe automatic transmission is in selector
lever positionN.
Ryou are driving no faster than 25 mph
(40 km/h).
You could otherwise damage the transfer
case.
XMake sure the ECO start/stop function is
switched off (Ypage 114).
XPress LOW RANGE button ;.
When the shift procedure is complete, the
LOW RANGE
transfer case position appears in
the multifunction display.
Indicator lamp :lights up.
XShift the transmission to position D.
Switching off the off-road gear ratio
GWARNING
When the transfer case is in the neutral posi-
tion, power transmission to the driven wheels
is interrupted. As a result, the vehicle could
roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
!Only carry out the gear selection if:
Rthe engine is running.
Rthe vehicle is rolling.
Rthe automatic transmission is in selector
lever position N.
Ryou are driving no faster than 43 mph
(70 km/h).
You could otherwise damage the transfer
case.
XPress button ;.
When the shift procedure is complete, the
HIGH
RANGEtransfer case position appears in
the multifunction display.
Indicator lamp :goes out.
If the gear change is not completed, the follow-
ing messages could appear in the display:
RTC Shift Conditions Not Fulfilled
You have not met one or more shift condi-
tions.
RTC NEUTRAL On
The transfer case has canceled the gear
change process and is in N. Transfer case
position N
appears in the multifunction dis-
play.
RTC Shift Canceled
The transfer case has canceled the gear
change process.
XCarry out the gear change process again.
Make sure to meet all conditions for changing gears.
RTC Malfunction Visit Workshop
There is a malfunction in the transfer case.
XDo not shift the transfer case.
XHave the vehicle checked as soon as possible
at a qualified specialist workshop.
Shifting to neutral
GWARNING
When the transfer case is in the neutral posi-
tion, power transmission to the driven wheels
Off-road driving systems163
Driving and parking
Z

is interrupted. As a result, the vehicle could
roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
XTurn the SmartKey to position2in the ignition
lock (Ypage 112).
XApply the parking brake.
XDepress the brake pedal.
XMove the selector lever to position N
(Ypage 119).
XPress and hold LOW RANGE button ;for
approximately ten seconds.
When the shift procedure is complete, the TC
In Neutralmessage appears in the multi-
function display for five seconds.
If the gear change is not completed, the follow-
ing messages could appear in the display
(
Ypage 195).
iIf the transfer case is in neutral, the key is in
the ignition lock and you open the driver's
door, the TC
InNeutralmessage appears in
the multifunction display. If you then release
the parking brake, a warning tone will sound.
Differential locks
General notes
GWARNING
When the differential locks are engaged, ABS, 4ETS, ESP
®and BAS are deactivated. As a
result, the wheels could lock when braking
and the braking distance is increased. There is
a risk of an accident.
Disengage the differential locks immediately
on firm surfaces with good grip.
!In order to avoid damage to the transfer
case, you must operate the vehicle on a dyna-
mometer (1-axle dynamometer) only if:
Rthe axle not driven on is jacked up
or
Rthe corresponding propeller shaft is dis-
connected and the transfer case differen-
tial lock is engaged.
Otherwise, the transfer case can be damaged. Differential locks improve the traction of the
vehicle.
Your vehicle is equipped with a differential lock
each for:
Rthe transfer case: this controls the balance
between the front and rear axles.
Rthe rear axle: this controls the balance
between the wheels on the rear axle.
Rthe front axle: this controls the balance
between the wheels on the front axle.
Information on differential gear system
and differential lock
When the vehicle drives around a curve, the
wheels on the outside of the curve must cover a
greater distance. Therefore, the wheels turn
more rapidly than on the inside. The differential,
a gear system in the drive train, allows for dif-
fering rotational speeds and facilitates corner-
ing.
The disadvantage of a differential is that the
wheels that have the least grip, get the most
drive. An example: a wheel of a driven axle is on
a snow-covered surface and therefore does not
have any traction. The differential sends most of
the drive force to this wheel because the force
takes the route of the lowest resistance. The
opposite wheel on this axle, however, which
stands on firm ground and could therefore allow
propulsion, receives no driving power. 4ETS
compensates for this disadvantage. 4ETS pro-
vides good steerability by automatically braking
the spinning wheel. 4ETS provides the wheel on
the firm surface with more drive force, which in
turn provides propulsion.
ESP
®and 4ETS are traction systems that are
ideal for road driving and suitable for light off-
road driving. The LOW RANGEoff-road gear
also improves off-road capability.
More challenging off-road conditions require
additional measures such as locking one or
more differential. Your vehicle is equipped with
three differential locks:
Ra central differential lock for the transfer case
Ra differential lock for the front axle and
Ra differential lock for the rear axle
Each differential lock can be engaged with the
corresponding switch on the center console. If
the differential in the transfer case is locked, the
front and rear wheels rotate at the same speed.
If t
he differential for the rear axle is locked, both
164Off-road driving systems
Driving and parking