In wintry driving conditions, alw
ays use winter
tires (M+S tires) and, if necessar y,snow chains
(/ page 309). On lyin this wa y can the maximum
ef fect of all-wheel drive be achie ved.
Use DSR (Downhill Speed Regulation) when driv‐
ing downhill off-road (/ page126).
If yo ufa ilto adapt your driving style or if you are
inat tentive, the all-wheel drive sy stem can neither
re duce therisk of an accident nor override the
la ws of ph ysics. The all-wheel drive sy stem can‐
not take road, weather and traf fic conditions into
account. The all-wheel drive sy stem is only an
aid. You are responsible for maintaining a safe
dis tance from theve hicle in front, forve hicle
speed, for braking in good time and forst ay ing in
lane.
* NO
TERisk of damage tothe driv etra in
and the brake sy stem If
yo u operate vehicles with all-wheel drive on
a one-axle test st and, you may damage the
driv etra in or the brake sy stem. #
A function or per form ance test should
only be car ried out on a two-axle test
st and. #
Ifyo u wish tooperate theve hicle on
such a test st and, please consult a
qu alified specialist workshop in
advance. *
NO
TERisk of damage tothe transfer
case If
yo uto w theve hicle with a raised axle, the
trans fer case can getdamaged. Such damage
is not co veredby Mercedes-Benz Limited
Wa rrant y. #
Neverto w theve hicle with a raised axle. #
Only tow theve hicle with all wheels on
th e ground or fully raised. #
Notethe instructions on towing the
ve hicle with full contact with the ground
fo r all wheels. Engaging all-wheel drive
Conditions
for en gaging/disengaging
Yo u can engage and deactivate the all-wheel drive
when stationary or while driving slowl y.When
stationar y,thefo llowing must be obser ved:
R The engine is running.
R The steering wheel in thest ra ight-ahead posi‐
tion.
If th e all-wheel drive cann otbe engaged when
st ationary: #
Vehicles with automatic transmission:
shift the selector le ver from 005Cto005B from
005B to005C from 005Cto005E and back to005C .
Engaging and disengaging the all-wheel drive
can be made easier in this wa y.
Obser vethefo llowing when driving slowly:
R The engine is running.
R The vehicle is not tr aveling fasterthan
6.2 mph (1 0 km/h).
R The vehicle is not being driven around a bend.
If it is not possible toengage all-wheel drive when
th eve hicle is rolling: #
Vehicles with automatic transmission:
brief lymo vethe selector le verto 005C . Engaging/disen
gaging all-wheel drive *
NO
TERisk of damage tothe transfer
case If
yo ustep on the accelerator pedal while the
all-wheel drive is engaged or disen gage d, the
trans fer case may be dama ged. #
Do not step on the accelera tor pedal
when the indicator lamp in the switch
fo rth e all-wheel drive is flashing. Driving and parking
12 5
#
Toengage/disen gage:press the upper sec‐
tion of switch 1.
The indicator lamp in switch 1flashes while
th e all-wheel drive is engaged or disengaged.
The 00E5 and003D warning lamps light up in
th e instrument displa y.ESP ®
and ASR are
deacti vatedfo rth e duration of the shift oper‐
ation. If the shift operation is successful, the
00E5 and003D warning lamps in the instru‐
ment display go out and ESP ®
and ASR are
re activated.
As long as the indicator lamp in switch 1is
fl ashing, you can cancel the shift operation by
pressing switch 1again. If the shift operation
fa ils, the indicator lamp in switch 1brief ly
fl ashes thre e times. One of the shift conditions
wa s not met.
If th e indicator lamp in switch 1lights up, all-
wheel drive is engaged. A releva nt messa ge
appears in the display of the on-board computer.
% If
th eLO W RANGE gear reduction is engaged,
th e all-wheel drive cann otbe disengaged. Fu
nction of theLO W RANGE gear reduction The
LOW RANGE gear reduction enables very
slow driving in there spective gears. If you engage
LO W RANGE, the engine's per form ance charac‐
te rist ics and the automatic transmission's shift‐
ing characteristics are adjus ted according ly. The
transmission ratio from the engine tothe wheels
is around 40% lo werth an in thero ad position.
The drive torque is in creased cor respondingly.
Conditions for en gaging/disengaging
The following shifting conditions must be met in
order toengage or disengage LOW RANGE:
R All-wheel drive is engaged (/ page125).
R The engi ne isrunning.
R The vehicle is stationar y.
R You depress the brake pedal.
R Vehicles with automatic transmission: the
selector le ver is in position 005Dor005C. Engaging and disen
gaging LOWrange 1
Enga ging and disengaging LOWrange
% On
vehicles with DSR (Downhill Speed Regu‐
lation), switch 1isreplaced with the switch
fo r DSR. #
Toengage and disen gage:press the upper
section of switch 1.
The 002E indicator lamp flashes in the instru‐
ment display forth e duration of the shift
operation.
R When the shift operation take s place and
LO W RANGE is engaged, the002E indica‐
to r lamp lights up.
R When the shift operation take s place and
LO W RANGE is disengaged, the002E indi‐
cator lamp goes out.
As long as the indicator lamp 002Eisflashing,
yo u can cancel the shift operation bypressing
button 1again. If the shift operation fails, the
indicator lamp 002Ebrieflyflashes thre e times.
One of the shift conditions was not met. DSR (Downhill Speed
Regulation) Note
s on DSR If
yo ufa ilto adapt your driving style or you are
inat tentive, DSR can nei ther reduce therisk of
accident nor override the la wsof ph ysics. DSR
cannot take road, weather and traf fic conditions
into account. DSR is only an aid. You are respon‐
sible for a safe dis tancetotheve hicle in front, for
ve hicle speed and for braking in good time.
DSR supports you when driving downhill. DSR
main tains a set speed foryo u on downhill gradi‐
ents byapplying the brakes as required. Main‐ 12 6
Driving and pa rking
Using electronic le
vel control forch arging
with air in an emer gency *
NO
TEDama gedue topressure being too
high If
th e pressure in the air suspension bello ws
is too high, the compressed-air lines or the air
suspension bello wsmay be dama ged. #
Ensure you obse rveth e maximum per‐
missible operating pressure of 900 kPa
(9 bar/130 psi). Only
forve hicles with valves for electronic le vel
control emergency charging. If electronic le vel
control is malfunctioning and theve hicle is lean‐
ing, you can raise or lo werth eve hicle bycon‐
necting an extern al compressed-air source toone
of the emer gency valves (similar ly as withtire
va lve) . If electronic le vel control is not opera‐
tional, you can drive on carefully tothe nearest
qu alified specialist workshop and ha vethe mal‐
function remedied. #
Apply the parking brake. #
Vehicles with automatic transmission:
shift the transmission toposition 005D. #
Switch off the engine. #
Turn theva lve cap of the cor responding valve
(1 L = left, 2R = right). #
Connect theex tern al compressed-air source. #
Raise or lo werth eve hicle le velby charging or
re leasing compressed air until the driving
le ve l has been reached and theve hicle is in a
horizontal position. While doing so, ensure
yo u obse rveth e maximum permissible oper‐
ating pressure of 900 kPa (9 bar/130 psi). #
Disconnect theex tern al compressed-air
source. #
Tighten theva lve cap on theva lve (1 L =
left, 2R = right). #
Drive on carefully tothe nearest qualified
specialist workshop. 13 2
Driving and pa rking
#
In particula r,do not park on dry grass‐
land or har vested grain fields. &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R Open doo rs,th ereby endangering other
persons or road users.
R Get out and be stru ck byoncoming traf‐
fi c.
R Ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Changing the transmission position.
R Starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of reach of
ch ildren. *
NO
TEDama getotheve hicle or the drive‐
train due torolling away #
Always park your vehicle safely and
according tolegal requirements. #
Always proper lysecure theve hicle
against rolling away. &
WARNING Risk of accident and inju ryif
parking brake is not applied
If yo u park theve hicle with the transmission
in park position 005Dand the parking brake is
not engaged, theve hicle may rollaw ay.
Engaging pa rkposition 005Dis not a fully ade‐
qu ate replacement forth e parking brake.
There is a risk of accident and injur y.#
Secu retheve hicle against rolling away
as desc ribed belo w. Obser
vethefo llowing points toensure that the
ve hicle is properly secured against rolling away
unin tentionally: #
alwa ys apply the parking brake. #
Vehicles with automatic transmission:
engage transmission position 005D. #
On uphill or downhill inclines: turnthe
front wheels towa rdsth e curb. #
On uphill or downhill inclines: securethe
re ar axle with a chock or an object without
sharp edges.
% Yo
u can operate the side windo wsforfive
minutes af teryo u ha veswitched off theve hi‐
cle. Manual parking brake
Applying/releasing
the handbrake le ver &
WARNING Risk of skidding or an acci‐
dent bybraking with the parking brake
If yo u ha vetobrake your vehicle with the
parking brake, the braking dis tance is consid‐
erab lylonger and the wheels may loc k.There
is an increased risk of skidding and/or acci‐
dent. #
Only brake theve hicle with the parking
brake if the service brake has failed. #
Inthis case, do not apply the parking
brake with too much forc e. #
Ifth e wheels loc k,immediately release
th e parking brake as much as required
fo rth e wheels toturn again. &
WARNING Risk offire and an accident if
th e parking brake is not released
If th e parking brake is not fully released when
driving, thefo llowing situations can occur:
R The parking brake can overheat and cause
a fire
R The parking brake can lose its holding
function #
Comple tely release the parking brake
before driving off. The brake lights do not light up when
you brake
th eve hicle with the parking brake. Driving and parking
141
Fo
rth e automatic functions towo rkcor rectl y,the
driver must be seated in the cor rect seat position
(/ page 64).
The function of the electric parking brake is
dependent on the on-board electrical sy stem volt‐
age. If the on-board electrical sy stem voltage is
low or there is a malfunction in the sy stem, it
may not be possible toapply the electric parking
brake and theye llow 0024 indicator lamp lights
up.
In this case, park theve hicle in thefo llowing way:
R Park theve hicle on le velground and secure it
to prev ent it from rolling away.
R Ve
hicles with automatic transmission:
shift the transmission toposition 005D.
% The electric parking brake is only actually
applied when there d0049 and0024 (USA)
or 0024 (Canada) indicator lamps light up
continuousl y.
It may not be possible torelease a parking brake
if th e on-board electrical sy stem voltage is low or
if th ere is a malfunction in the sy stem. Inform a
qu alified specialist workshop.
When the engine is switched off, the electric
parking brake car ries out a function test at regu‐
lar inter vals. Noises are normal in this process.
Au tomatically applying the electric parking
brake
Ve hicles with automatic transmission:
The electric parking brake is auto matically
applied when the transmission is in position 005D.
In addition, at least one of thefo llowing condi‐
tions must be fulfilled:
R The engine is switched off
R The driver is not sitting in the driver's seat
R The belt buckle is undone To
prev ent the electric parking brake from apply‐
ing automaticall y,pull switch 1.
The electric parking brake is also automatically
applied if Active Dis tance Assi stDISTRONIC has
brought theve hicle toast andstill.
In addition, at least one of thefo llowing condi‐
tions must be fulfilled:
R The engine is switched off
R The driver is not sitting in the driver's seat
R The belt buckle is undone
R There is a sy stem malfunction
R The po wer supp lyis insuf ficient
R The vehicle is stationary for a long time
The red0049 and0024 (USA) or 0024(Canada)
indicator lamp in the instrument display lights up.
The electric parking brake is only actually applied
when there d0049 and0024 (USA) or 0024
(Canada) indicator lamps light up continuousl y.
Re leasing the electric pa rking brake automat‐
ically
Ve hicles with automatic transmission:
The electric parking brake of your vehicle is
re leased when all of thefo llowing conditions are
fulfilled:
R The driver is sitting in the driver's seat.
R The driver is belted.
R The engine is running.
R The transmission is in position 005Bor005E and
yo u depress the accelera tor.
or
Yo u swit chfrom transmission position 005Dto
position 005Bor005E. You must also depress the Driving and pa
rking 14 3
accelerator if tra
veling on steep uphill gradi‐
ents.
R Ifth e transmission is in position 005E,there ar-
end doors must be closed.
App lying/releasing the electric pa rking brake
manually &
WARNING Risk of accident and inju ry
due tochildren and animals left unat ten‐
ded in theve hicle
If yo u lea vechildren and animals unat tended
in theve hicle, they may be able toset the
ve hicle in motion, forex ample by:
R Releasing the parking brake.
R Shifting the automatic transmission out of
park position 005D.
R Starting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Toappl y:press switch 1.
When the electric parking brake is applied,
th ere d0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps light up in the instru‐
ment displa y.The electric parking brake is
only actually applied when there d0049
and 0024 (USA) or 0024(Canada) indicator
lamps light up continuousl y.
It is also possible toapply the electric parking
brake when the ignition is switched off. #
Torelease: pull switch 1.
The red0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps in the instrument display
go out.
Yo u may on lyrelease the electric parking
brake if the ignition is switched on with the
st art/ stop button.
Emer gency braking In
theeve nt of an emergency, you can brake the
ve hicle while it is in motion with the electric park‐
ing brake. #
While driving, press switch 1ofthe electric
parking brake.
The vehicle is braked as long as youke ep
switch 1ofthe electric parking brake
depressed.
The longer electric parking brake switch 1is
depressed, the greater the braking forc e.
During the braking procedure, you will receive the
fo llowing feedback from theve hicle:
R awa rning tone sounds
R the "Release parking brake" display message
appears
R there d0049 and0024 (USA) or 0024(Can‐
ada) indicator lamps in the instrument display
fl ash
When theve hicle has been braked toast andstill,
th e electric parking brake is applied. Pa
rking theve hicle for an extended period Pa
rking theve hicle for longer than 4 weeks #
Method 1: connect thest ar ter battery to a
trickle charge r via the jump-s tart connection. 14 4
Driving and pa rking
Information on Hill
Start Assist Hill
Start Assist holds theve hicle for a short time
when pulling away on a hill under thefo llowing
conditions:
R Vehicles with automatic transmission: the
transmission is in position 005Bor005E.
R The pa rking brake has been released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelerator pedal and
depress it before theve hicle begins toroll. &
WARNING Risk of accident and inju ry
due totheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist. HOLD function
HOLD function
Re quirements:
R The seat occupancy recognition on the driv‐
er's seat has de tected that the driver has fas‐
te ned the seat belt.
The HOLD function holds theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away on steep slopes or
when waiting in traf fic. When you depress the
accelerator pedal topull away,th e braking ef fect
is canceled and the HOLD function is deactiva‐
te d.
The HOLD function is only an aid. The responsibil‐
ity forth eve hicle safely standing still remains
with the driver.
Sy stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline must not be greater than 30%.
Ac tivating/deactivating the HOLD function
Requ irements: R
The vehicle is stationar y.
R The engine is running or it has been au tomati‐
cally switched off bythe ECO start/ stop func‐
tion.
R The driver is seated and belted.
R The electric parking brake is released.
R Vehicles with automatic transmission: the
selector le ver is in position 005B,005Eor005C.
R Active Dis tance Assi stDISTRONIC is deacti va‐
te d.
Ac tivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or brake
pedal, e.g. byave hicle occupant. #
Always deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking When
Active Brake Assi st,Ac tive Dis tance
Assi stDISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously in
cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash #
Make sure that the activation conditions are
met. #
Depress the brake pedal until the00D9 dis‐
play appears in the multifunction displa y.
The HOLD function is activated. You can
re lease the brake pedal.
% If depressing
the brake pedal thefirs t time
does not acti vate the HOLD function, wait
brief lyand then try again. Driving and parking
15 5
Deactivating the HOLD function
The HOLD function is deactivated in
thefo llowing
situations: #
Vehicles with automatic transmission:
depress the accelerator pedal when the auto‐
matic transmission is in position 005Bor005E. #
Depress the brake pedal again with suf ficient
pressure until the00D9 display in the multi‐
function display goes out. #
Activate Active Dis tance Assi stDISTRONIC.
% Ve
hicles with automatic transmission: the
automatic transmission of your vehicle shifts
to 005D afte r some time. This relie vesth e load
on the service brake.
When the HOLD function is activated, the auto‐
matic transmission automatically shifts to005D in
th efo llowing situations:
R The driver lea vesth e driver's seat.
R The driver's door is opened.
R The engine is switched off without the ECO
st art/ stop function. Pa
rking Assist PARKTRONIC Fu
nction of Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC is an electronic park‐
ing assis tance sy stem with ultrasound. It moni‐
to rs the area around your vehicle using six sen‐
sors on the front bumper and six sensors on the
re ar bumper. Parking Assist PARKTRONIC indi‐
cates visually and audibly the dis tance between
yo ur vehicle and an object.
Pa rking Assist PARKTRONIC is on lyan aid. It is
not a substitute foryo ur attention tothe sur‐
ro undings. The responsibility for safe maneu ver‐
ing and parking remains with you. Make sure that
th ere are no persons, animals or objects in the
maneuvering area while maneuvering and parking
in/exiting parking spaces.
In thest andard setting, an intermit tent wa rning
to ne sounds from a di stance of appr oximately
1. 3 ft (0.4 m) toan obs tacle. A continuous tone
sounds from a di stance of appr oximately 1.0 ft
(0.3 m). You can set thewa rning tone in the mul‐
timedia sy stem so that it will sound earlier at a
grea ter dis tance of appr oximately 3.3 ft(1 m)
(/ page 156).
Pa rking Assist PARKTRONIC displ ayinthe
mu ltimedia sy stem
If th ePa rking Assist PARKTRONIC display in the
multimedia sy stem is not active and an obs tacle is de
tected in the path of theve hicle, a pop-up
window forPa rking Assist PARKTRONIC appears
in the multimedia sy stem at speeds up toappr ox‐
imately 6 mph (10 km/h).
Sy stem limitations
Pa rking Assist PARKTRONIC does not necessarily
ta ke into account thefo llowing obs tacles:
R Obs tacles bel ow the detection range, e.g. per‐
sons, animals or objects.
R Obs tacles ab ovethe de tection range, e.g.
ove rhanging loads, overhangs or loading
ra mp s of truc ks.
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function cor rectl y.Clean
th e sensors regular ly,ta king care not toscratch
or damage them.
Ve hicles with trailer hitch: Parking Assist
PA RKTRONIC is deactivated forth ere ar zone
when you es tablish an electrical connection
between your vehicle and a trailer.
Deactivating/activating Parking Assist
PA RKTRONIC
* NO
TERisk of an accident from objects at
close range Pa
rking Assist PARKTRONIC may not de tect
cer tain objects at close range. #
When pa rking or maneuvering theve hi‐
cle, pay particular attention toany
objects which are abo veor below the
sensors, e.g. flowe r pots or dr awbars.
The vehicle or other objects could oth‐
erwise be damaged. Multimedia sy
stem:
4 © 5
Settings 5
Quick Access #
Select PARKTRONIC On .
The function is activated or deactivated
depending on the pr evious setting.
% Pa
rking Assist PARKTRONIC is automatical ly
activated when starting theve hicle.
Setting thewa rning tones of Parking Assist
PA RKTRONIC
Multimedia sy stem:
4 Settings 5
Assistance
5 Camera & Parking 5
Set Warning Tones
Ad justing the volume of thewa rning tones #
Select Warning Tone Volume. 15 6
Driving and pa rking