
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake.
XIf this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away.
XShift the automatic transmission to position
j.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
The electric parking brake performs a function
test at regular intervals while the engine is
switched off. The sounds that can be heard while
this is occurring are normal.
Applying or releasing manually
XTo apply: push handle :.
When the electric parking brake is applied,
the red F(USA only) or !(Canada
only) indicator lamp lights up in the instru-
ment cluster.
The electric parking brake can also be applied
when the SmartKey is in position u.
XTo release:pull handle:.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster goes out.
The electric parking brake can only be released:
Rif the ignition is switched on using the Start/
Stop button or
Rthe SmartKey is in SmartKey position 1or
2 in the ignition lock (Ypage 106)
Applying automatically
The electric parking brake is automatically
applied when the transmission is in position j
and:
Rthe engine is switched off or
Rthe driver is not wearing a seat belt and the
driver's door is opened
To prevent the electric parking brake from being
automatically applied, pull handle :.
The electric parking brake is also applied auto-
matically in the following cases if:
RDistance Pilot DISTRONIC brings the vehicle
to a standstill or
Rthe HOLD function is keeping the vehicle sta-
tionary
124Parking
Driving and parking

In addition, at least one of the following condi-
tions must be fulfilled:
Rthere is a system malfunction
Rthe power supply is insufficient
Rthe vehicle is stationary for a lengthy period
The red F(USA only) or !(Canada only)
indicator lamp in the instrument cluster lights
up.
The electric parking brake is not automatically
engaged if the engine is switched off by the ECO
start/stop function.
Releasing automatically
The electric parking brake is released when the
following conditions are fulfilled:
Rthe engine is running
Rthe seat belt tongue is engaged in the belt
buckle
Rthe transmission is in position hork and
you depress the accelerator pedal or shift
from position jtoh ork
Rif the transmission is in position k, the tail-
gate must be closed
If the seat belt tongue is not engaged in the seat
belt buckle, the following conditions must be
fulfilled:
Rthe driver's door and front-passenger door
are closed
Ryou move the transmission out of position j
or you have previously driven at a speed
above 2 mph (3 km/h)
Rif the transmission is in position k, the tail-
gate must be closed
When the electric parking brake is released, the red F (USA only) or !(Canada only) indi-
cator lamp goes out in the instrument cluster.
Emergency braking
The vehicle can also be braked during an emer-
gency by using the electric parking brake.
XWhile driving, push handle :of the electric
parking brake (Ypage 124).
The vehicle is braked as long as you keep
handle :of the electric parking brake
pressed. The longer electric parking brake
handle :is depressed, the greater the brak-
ing force. During braking:
Ra warning tone sounds
Rthe
Please Release Parking Brakemes-
sage appears
Rthe red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period
General notes
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
result of lack of use.
XVisit a qualified specialist workshop and seek
advice.
Trickle charging the on-board electrical
system battery
The battery may drain if the vehicle is left sta-
tionary for long periods. In this case, Mercedes-
Benz recommends attaching the trickle charger
to 12 V socket :in the cargo compartment.
iA trickle charger and further information
can be obtained from a qualified specialist
workshop.
XSwitch the ignition off.
XOpen the tailgate.
Parking125
Driving and parking
Z

Do not use Distance Pilot DISTRONIC:
Rin road and traffic conditions which do not
allow you to maintain a constant speed, for
example in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
Distance Pilot DISTRONIC may not detect nar-
row vehicles driving in front, e.g. motorcycles, or
vehicles driving on a different line.
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple, in parking garages
If Distance Pilot DISTRONIC no longer detects a
vehicle in front, it may unexpectedly accelerate
to the speed stored.
This speed may:
Rbe too high if you are driving in a turning lane
or an exit lane
Rbe so high in the right lane that you pass vehi-
cles driving on the left (in countries where
they drive on the right)
Rbe so high in the left lane that you pass vehi-
cles driving on the right (right-hand drive
countries)
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:Activates or increases speed
;Activates or reduces speed
=Deactivates Distance Pilot DISTRONIC
?Activates at the current speed/last stored
speed
ASets a specified minimum distance
Activating Distance Pilot DISTRONIC
Activation conditions
To activate Distance Pilot DISTRONIC, the fol-
lowing conditions must be fulfilled:
Rthe engine must be started. It may take up to two minutes of driving before Distance Pilot
DISTRONIC is ready for use.
Rthe electric parking brake must be released.
RESP®must be active, but not intervening.
Rthe transmission must be in position h.
Rthe driver's door must be closed when you
shift from jtoh or your seat belt must be
fastened.
Rthe front-passenger door and rear doors must
be closed.
Activating
XBriefly pull the cruise control lever towards
you ;, up :or down =.
Distance Pilot DISTRONIC is activated.
XTo adjust the set speed in 1 mph incre-
ments (1 km/h increments): briefly press
the cruise control lever up :to the pressure
point for a higher speed, or down =for a
lower speed.
Every time the cruise control lever is pressed
up or down, the last speed stored is increased
or reduced.
or
XTo adjust the set speed in 5 mph incre-
ments (10 km/h increments): briefly press
the cruise control lever up :beyond the
Driving systems133
Driving and parking
Z

Changing lanes
If you change to the overtaking lane, Distance
Pilot DISTRONIC supports you if:
Ryou are driving at a speed greater than
45 mph (70 km/h)
Ryou switch on the appropriate turn signal
RDistance Pilot DISTRONIC does not currently
detect a danger of collision
If these conditions are fulfilled, your vehicle is
accelerated. Acceleration will be interrupted if
changing lanes takes too long or if the distance
between your vehicle and the vehicle in front
becomes too small.
iWhen you change lanes, Distance Pilot
DISTRONIC monitors the left lane.
Stopping
GWARNING
If you leave the vehicle when it is only being
braked by Distance Pilot DISTRONIC, it could
roll away if:
Rthere is a malfunction in the system or in
the voltage supply.
RDistance Pilot DISTRONIC is switched off
using 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 are tam-
pered with.
Rthe battery is disconnected
Rthe vehicle is accelerated, e.g. by a vehicle
occupant.
There is a risk of an accident.
Before leaving the vehicle, always deactivate
Distance Pilot DISTRONIC and secure the
vehicle against rolling away.
Further information on deactivating Distance
Pilot DISTRONIC (
Ypage 136).
If Distance Pilot DISTRONIC detects that the
vehicle in front is stopping, it brakes your vehicle
to a stop.
Once your vehicle is stationary, it remains sta-
tionary and you do not need to depress the
brake.
iAfter a time, the electric parking brake
secures the vehicle and relieves the service
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.
The elect
ric parking brake secures the vehicle
automatically if Distance Pilot DISTRONIC is
activated when the vehicle is stationary and:
Rthe driver's seat belt is not fastened and the
driver's door is open
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
Ra system malfunction occurs
Rthe power supply is insufficient
If a malfunction occurs, the transmission may
also shift to position jautomatically.
Setting a speed
XPress the cruise control lever up :for a
higher speed or down ;for a lower speed.
XTo adjust the set speed in 1 mph incre-
ments (1 km/h increments): briefly press
the cruise control lever up :or down ;to
the pressure point.
Every time the cruise control lever is pressed
up : or down ;the last speed stored is
increased or reduced.
XTo adjust the set speed in 5 mph incre-
ments (10 km/h increments): briefly press
the cruise control lever up :or down ;
beyond the pressure point.
Every time the cruise control lever is pressed
up : or down ;, the last speed stored is
increased or reduced.
Driving systems135
Driving and parking
Z

Distance Pilot DISTRONIC may mistakenly
detect vehicles that are crossing your lane. Acti-
vating Distance Pilot DISTRONIC at, for exam-
ple, a traffic light with crossing traffic, could
cause your vehicle to pull away at the wrong
time.
HOLD
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.
Important safety notes
GWARNING
If the vehicle is only braked using the HOLD
function, the vehicle may roll away in the fol-
lowing situations when you leave the vehicle:
Rif there is a malfunction in the system or in the voltage supply
Rif the HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. by a vehicle occupant
Rif the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with or the battery is disconnected
There is a risk of an accident.
Always deactivate the HOLD function and
secure the vehicle against rolling away before
you leave it.
!When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations. To avoid damage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
Rwhen towing the vehicle
Rin the car wash
Deactivate the HOLD function (
Ypage 140).
Activation conditions
You can activate the HOLD function if all of the
following conditions are fulfilled:
Rthe vehicle is stationary.
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/stop
function.
Rthe driver's door is closed or your seat belt is
fastened.
Rthe electric parking brake is released.
Rthe transmission is in position h,kori.
Activating the HOLD function
XMake sure that the activation conditions are
met.
XDepress the brake pedal.
XQuickly depress the brake pedal further until
HOLD: 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.
Driving system s139
Driving an d parking
Z

Deactivating theHOL Dfunction
The HOLD function is deactivated if:
Ryou depress th eaccelerator and th etrans -
missio nis in position hork
Ryou shift th etransmissio nto position j
Ryou apply th ebrake sagain wit h acertain
amount of pressure until th eHOL Ddisplay dis -
appears from th emultifunction display
Ryou secure th evehicle usin gth eelectric park-
in g brake
iAfte r atime, th eelectric parking brake
secure sth evehicle and relieves th eservic e
brake .
The electric parking brake secure sth evehicle
automatically if th eHOLD function is activated
when th evehicle is stationary and :
Rthedriver's seat belt is no tfastene dand th e
driver's doo ris ope n
Rtheengin eis switched off, unless it is auto-
matically switched of fby th eEC Ostart/sto p
function
Ra syste mmalfunction occur s
Rthepowe rsupply is no tsufficien t
If th eelectric parking brake is no toperational, a
hor nwill soun dat regular intervals. The HOLD
function mus tthen be deactivated.
If amalfunction occurs, th etransmissio nmay
also be shifted to position jautomatically.
The Brake Immediately
messag emay also
appear in th emultifunction display.
XImmediately depress th ebrake firmly until th e
warnin gmessag ein th emultifunction display
goe sout .
The HOLD function is deactivated. If you turn of f
th eengine, take of fyour seat belt or ope nth e
driver's doo rwhen th eHOLD function is activa-
ted, ahor nwill soun dat regular intervals. The
soundin gof th ehor nalerts you to th efac tthat
th eHOLD function is still activated. If you
attempt to loc kth evehicle, th etone becomes
louder. The vehicle canno tbe locke duntil you
hav edeactivated th eHOLD function .
iAfterswitchin gof fth eengine, it can only be
started again once you hav edeactivated th e
HOLD function .
RACE START
Important safet ynotes
iRAC ESTART mus tno tbe used on normal
roads. RAC ESTART mus tonly be activated
and used on dedicated road circuits, outsid e
of publi croad use.
RAC ESTART enable soptimal acceleration from
a standin gstart .Fo rthis, asuitably high-grip
road surfac eis require dand th evehicle and tires
mus tbe in goo dworking order .
GWARNING
If you use RAC ESTART ,individual tires may
start to spi nand th evehicle could skid.
Dependin gon th eselecte dES P
®mode, there
is an increase dris kof skidding and havin gan
accident. Mak esur ethat no persons, animals
or obstacles are within range of th evehicle.
iObserv eth esafet ynote son drivin gsafet y
systems (Ypage 57).
Be sur eto rea dth esafet ynote sand informa-
tion on ES P
®(Ypage 61).
iObserveth especific servic erequirements
fo rracetrac kmode operation (Ypage 238).
Activation conditions
You can activateRAC ESTART under th efollow -
in g conditions:
Rth edoors are close d
Rtheengin eis running and th eengin eand
transmissio nare at operatin gtemperature .
Thi sis th ecas ewhen th eoil temperature dis -
play in th emultifunction display is shown in
whit e (
Ypage 165).
RESP®is functionin gcorrectl y (Ypage 61 )
Rthesteerin gwhee lis in th estraight-ahead
position
Rth evehicle is stationary and th ebrake peda lis
depressed sufficientl y(lef tfoot )
Rthetransmissio nis in position h
Rdrive program S,S+ orRAC Eis selecte d
(Ypage 111).
140Driving systems
Driving an d parking

The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or not
occur at all:
Rif the length of the journey is less than approx-
imately 30 minutes
Rif the road condition is poor, e.g. if the surface
is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
Rif you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/h)
Rif the time has been set incorrectly
Rin active driving situations, such as when youchange lanes or change your speed
The ATTENTION ASSIST tiredness assessment
is deleted and restarted when you continue the
journey:
Rwhen you switch off the engine
Rwhen you take off your seat belt and open the
driver's door, e.g. for a change of drivers or to
take a break
Displaying the attention level
You can have current status information dis-
played in the assistance menu (Ypage 163) of
the on-board computer.
XSelect the Assistance display for ATTENTION
ASSIST using the on-board computer
(
Ypage 162). The following information is displayed:
Rthe length of the journey since the last break.
Rthe attention level determined by ATTENTION
ASSIST (
Attention Level), displayed in a
bar display in five levels from high to low.
Rif ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the System Suspended
message
appears. The bar display then changes what is
shown, e.g. if you are driving at a speed below
37 mph (60 km/h) or above 125 mph
(200 km/h) .
Activating ATTENTION ASSIST
XActivateATTENTION ASSIST usin gth eon -
boar dcomputer (Ypage 163).
The system determine sth eattention level of
th edriver depending on th esetting selected:
Selection of Standard
:th esensitivit ywit h
whic hth esystem determine sth eattention level
is set to normal.
Selection of Sensitive
:th esensitivit yis set
higher. The attention level detecte dby ATTEN-
TIO NASSIST is adapted accordingly and th e
driver is warned earlier .
When ATTENTION ASSIST is deactivated, th e
é symbol appear sin th emultifunction dis-
play in th eAssistance display.
When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after th eengin e
has been stopped. The sensitivit yselected cor-
responds to th elast selection activated (Stand‐
ardor Sensitive).
Warn ing in the multifunction display
If fatigue or increasing lapse sin concentration
are detected, awarning appear sin th emulti-
function display: ATTENTION ASSIST
Take aBreak!.
In addition to th emessage shown in th emulti-
function display, you will then hear awarning
tone .
XIf necessary, tak e abreak.
XConfir mthemessage by pressing th ea
butto non th esteering wheel.
On lon gjourneys, tak eregular breaks in goo d
time to allow yourself to rest. If you do no ttak e
a break and ATTENTION ASSIST still detects
increasing lapse sin concentration ,you will be
warned again after 15 minute sat th eearliest .
Driving systems149
Driving and parking
Z

Display messagesPossible causes/consequences andMSolutions
#
See Operator'sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Ratorn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XConsult aqualified specialist workshop .
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th econdition of charg eis
to olow.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 122).
XObserv eth einstruction sin th e# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
#
Start Engine SeeOperator'sManual
The engin eis off and th ebattery condition of charg eis to olow.
XSwitc hoff electrical consumer sthat you do no tneed, suc has th e
rear window defroste rand interior lighting .
XLeaveth eengin erunnin gfor afew minute sor drive alon gdistance.
The battery is bein gcharged.
4
Check Engine OilLevel (Ad d 1quart)
The engin eoil level has dropped to th eminimum level.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 233).
XIf necessary, add engin eoil (Ypage 235).
XHav eth eengin echecke dat aqualified specialist workshop if engin e
oil needs to be added mor eoften than usual.
Information on approve dengin eoils can be obtained from aqualified
specialist workshop or on th eInternet at http://bevo.mercedes -
benz.co m.
4
Engine Oil LevelLow Stop VehicleTurn Engine Off
The engine oil level is too low. There is a risk of engine damage.
XPull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 122).
XCheck the engine oil level (Ypage 233).
XIf necessary, add engine oil (Ypage 235).
182Display messages
On-board computer and displays