Page 185 of 354

R
Ifth e trailer has electronically cont rolled
brakes, pull away carefully wi th theve hicle/
trailer combination. Brake manually using the
brake controller and check whe ther the
brakes are functioning cor rectly.
R Secu rethe load on the trailer in line with the
re qu irements and rules for load-securing
me thods.
R When driving with a trailer, check at regular
inter vals that the load is secure and that the
lights and brakes are functioning cor rectl y.
R Bear in mind that the handling characteristics
are more uns table when towing a trailer than
when driving without a trailer. Avoid sudden
st eering mo vements.
R The vehicle/trailer combination is heavier,
accelerates more slowl y,has a reduced
climbing ability and an increased braking dis‐
ta nce. It is more susceptible toside winds
and requ ires careful steering.
R If possible, do not brake suddenl y,but rath er
moderately at firs t so that the trailer can acti‐
va te its brakes. Then inc rease the pressure on
th e brake pedal.
R Ifth e automatic transmission shifts between
ge ars on uphill or downhill gradients, restrict
th e shift range. Select shi ftrange 4, 3, 2 or 1.
A lo werge ar and reduced speed decrease the
ri sk of engine damage.
R When driving on a downhill gradient, shift to a
lo we rge ar to use the engine's braking ef fect.
Av oid cons tant braking, as this could cause
th eve hicle brakes and possibly also the
trailer brakes toove rheat.
R Ifth e coolant temp erature increases signifi‐
cantly when the air-conditioning sy stem is
switched on, switch the air-conditioning sys‐
te m off.
Coolant heat can also be dissipated by
switching the air flow and thete mp erature of
th e heater or air conditioning tothe maximum
le ve l. Open the windo wsif necessar y.
R When overtaking, pay particular attention to
th e increased overtaking di stance of your
ve hicle/trailer combination.
Due tothe length of your vehicle/trailer com‐
bination you will requ ire a longer stre tch of
ro ad before swit ching back tothe original
lane. Pe
rm issible trailer loads and trailer dr awbar
nose weights We
ight information &
WARNING Risk of accident due to
unbraked trailer with excessively high
gross weight
If yo uto w a trailer without a separate func‐
tional braking sy stem and a gross trailer
we ight (G TW) of more than 1635 lbs (750 kg),
th en theve hicle brake sy stem may overheat.
This increases the braking dis tance and the
brake sy stem may evenfa il. #
Always use a trailer with a separate
functional braking sy stem when towing
a trailer with a gross trailerweight
(G TW ) of more than 1635 lbs (750 kg). *
NO
TEDama getothe drive train, trans‐
mission or trailer tow hit chdue toexc ess
gross combination weight The permissible
gross combinationweight is
exc eeded.
The drive train, the transmission or the trailer
to w hit chmay be dama ged. #
Comply with the permissible gross com‐
bination weight. Fo
rve hicles with a permissible gross vehicle
we ight of 11030 lbs (5003 kg),th e permissible
gross combination weight is less than the sum of
th e permissible gross vehicle weight plus the per‐
missible trailer load. If either theve hicle or the
trailer is fully laden, the permitted gross vehicle
we ight or the permitted trailer load values are
re duced accordingly. In this case, you may on ly
partially load the trailer or theve hicle.
The gross trailer weight (G TW) is calculated by
adding thewe ight of the trailer tothewe ight of
th e load and equipment. If the trailer is equipped
with a separate braking sy stem, then the maxi‐
mum gross trailer weight is 5000 lbs (2268 kg) or
75 00 lbs (3402 kg).
The maximum permissible trailer dr awbar nose‐
we ight on the ball head is 500 lbs (227 kg) or
75 0 lbs (340 kg). Ho wever,th e actual trailer
dr aw bar nose weight must not exceed theva lue
given on the trailer tow hit chor trailer identifica‐
tion plates. Where theva lues dif fer, th e lo west
va lue alw ays applies. Driving and parking
161
Page 186 of 354

The permissible gross
weight forve hicle-trailer
combinations (GCWR) is calculated byadding the
gross weight of the trailer tothe gross vehicle
we ight including a driver's weight of appr ox‐
imately 150 lbs (68 kg). The maximum permissi‐
ble gross combination weight is vehicle-specific
and equipment-dependent. When driving with a
trailer, you should not exceed the maximum per‐
mitted permissible gross weight forve hicle-trailer
combinations (GCWR).
The permissible values, which must not be excee‐
ded, can be found in your vehicle documents and
on the identification plates of the trailer tow
hitch, the trailer and theve hicle. The values
appr ovedby the manufacturer can also be found
in the "Technical data" section. Where theva lues
dif fer, th e lo west value alw ays applies.
Loading the trailer
Use a dr awbar nose weight that is as close as
possible tothe maximum permissible nose‐
we ight. Do not undershoot the minimum permis‐
sible nose weight. Otherwise, the trailer may
become de tach ed.
R Distribute the load over theve hicle and the
trailer so as not toexceed either the maxi‐
mum permissible values forth e gross vehicle
we ight rating (GVWR) and gross trailer weight
(G TW ),th e permissible gross weight forve hi‐
cle-trailer combinations (GCWR), nor the max‐
imum permissible gross axle weight rating
(GAWR) and trailer dr awbar nose weight (TWR)
of your vehicle.
R Addth ere ar axle load tothe trailer dr awbar
nose weight of the trailer dr awbar on the ball
head (TWR). This will ensure that you do not
ex ceed the permissible gross axle weight rat‐
ing (G AWR).
R Addth eve hicle load tothe trailer dr awbar
nose weight of the trailer dr awbar on the ball
head (TWR). This will ensure that you do not
ex ceed the permissible gross vehicle weight
ra ting (GVWR).
Che cking theve hicle and trailer weight
R Make sure that thewe ights of theto wing
ve hicle and the trailer comply with the maxi‐
mum permissible values. Ha vethe car/t railer
combination weighed on a calibrated weigh‐
ing machine. The car/trailer combination
comprises theto wing vehicle including driver,
passengers and load as well as the laden
trailer. R
Check the maximum permissible gross axle
we ight rating of the front and rear axles
(GAWR), the gross trailer weight (G TW),the
permissible gross weight forve hicle-trailer
combinations (GCWR) and the trailer dr awbar
nose weight rating (TWR). Tr
ailer po wer supply Incor
rect cabling of the connector plug may inter‐
fe re with other electronic sy stems in theve hicle.
Mercedes-Benz therefore recommends that you
ha ve the cabling of the connector plug car ried
out at a qualified specialist workshop.
Yo u can connect accesso ries up toa maximum of
24 0 W tothe permanent po wer supply. Do not
ch arge a trailer battery using the po wer supp ly.
Yo ur vehicle may be equipped with a range of
electrical equipment for trailer operation.
Depending on your trailer, you may need an
adap terfo rth e electrical connection between the
trailer and your vehicle.
The trailer soc ket of your vehicle is equipped with
a permanent po wer supp lyat thefa ctor y.
The permanent po wer supp lyis supplied via
trailer soc ket pin 4.
No tethat the trailer's permanent po wer supp lyis
not switched off when theve hicle's on-board
electrical sy stem voltage is lo w.This could com‐
ple tely dischar geyour vehicle's star ter batter y.
Fu rther information on the electrical equipment
cur rently ins talled on your vehicle, and on ins tal‐
ling trailer elect rics, can be obtained at any quali‐
fi ed specialist workshop. 16 2
Driving and pa rking
Page 187 of 354

Overview of Instrument Display
&
WARNING Risk of accident due toan
instrument display malfunction
If th e Instrument Display has failed or mal‐
functioned, you may not recognize function
re strictions applying tosaf etyre leva nt sys‐
te ms.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately
at a qualified specialist workshop. If
yo ur vehicle's operational saf ety is impaired,
park theve hicle in a safe location immediatel y.
Inform a qualified specialist workshop.
Instrument Display Example: Instrument Display with color display
1
Speedome ter
2 Multifunction display
3 Tach ome ter
4 Coolant temp erature display
5 Fuel le vel and tank cap position displ ay
In normal driving mode, coolant temp erature dis‐
play 4is permitted torise tothere d marking. Example: Instrument Display with black and white
display
1
Speedome ter
2 Indicator lamps display
3 Tach ome ter
4 Multifunction display
* NO
TEEngine damage due toexc essively
high engine speeds The engine will be damaged if
you drive with
th e engine in theov errevving range. #
Do not drive wi th the engine in theove r‐
re vving range. When
there d marking in tach ome ter3 is
re ached (o verspeed range), the fuel supply will be
inter rupte d in order toprotect the engine. &
WARNING Danger of bu rns when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine com‐
partment, you could come into con tact wi th
hot gases or other escaping operating fluids. #
Before opening the hood, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the hood closed and call
th efire service. Instrument Display and on-board computer
16 3
Page 188 of 354

Overview of
the but tons on thest eering
wheel 1
0038 Back button, left (on-board computer)
2 Touch Control, left (on-board computer)
3 Button group for cruise control or Active Dis‐
ta nce Assi stDISTRONIC
4 Button group:
£ Voice-opera ted control
004B Display favo rite s (multimedia sy stem)
VO L: using the0063 control, inc reases/
re duces thevo lume or switches off the
sound
0061 Makes/accepts a call
0076 Rejects/ends a call
5 00E2 Main menu button (multimedia sy stem)
6 Touch Control, right (multimedia sy stem)
7 0038 Back button, right (multimedia sy stem) 1
0038 Back button, left (on-board computer)
2 Touch Control, left (on-board computer)
3 Main menu button (on-board computer)
4 Button group for cruise control or Active Dis‐
ta nce Assi stDISTRONIC
5 Button group:
£ Voice-opera ted control
004B Display favo rite s (multimedia sy stem)
VO L: using the0063 control, inc reases/
re duces thevo lume or switches off the
sound
0061 Makes/accepts a call 0076
Rejects/ends a call
6 00E2 Main menu button (multimedia sy stem)
7 Touch Control, right (multimedia sy stem)
8 0038 Back button, right (multimedia sy stem) Operating
the on-boa rdcompu ter &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle when
driving, you will be distracted from the tra ffic
situation. This could also cause youto lose
control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
ope rating the on-board computer.
Operating the on-boa rdcompu ter (vehicles
with steering wheel but tons)
% The display of
the on-board computer
appears on the multifunction display
(/ page 165).
When the function is switched on, dif fere nt signal
to nes gi vefeedback while the on-board computer
is being operated. These include a signal tone
when the end of a list is reached or when a list is
being scrolled thro ugh. 16 4
Instrument Display and on-board computer
Page 189 of 354

The on-board computer is operated via left-hand
To uch Control 2and the back button on the left
1. The on-board computer is operated using
thefo l‐
lowing buttons:
R the back button on the left 1
R the left-hand Touch Control 2
R the main menu button on the left 3
The following menus are available:
R Service
R Assistance
R Trip
R Radio
R Media
R Phone
R Settings #
Tocall up the main menu: pressthe back
button on the left 1repeatedly, or press and
hold it.
% Ve
hicles without Active Di stance Assist
DISTRO NIC:you can call up the main menu
of the on-board computer with the00E2 but‐
to n. #
Tobrows eth rough the menu bar: swipeto
th e left or right on left-hand Touch Control
2. #
Tocall up a menu or confirm a selection:
press left-hand Touch Control 2. #
Tobrows eth rough displa ysor lists in the
menu: swipe upwards or down wards on left-
hand Touch Control 2. #
Tocall up a submenu or confirm a selec‐
tion: press left-hand Touch Control 2. #
Toexit a submenu: pressthe back button on
th e left 1.
If yo u are in a submenu and press and hold the
back button on the left 1,the main menu
appears. Overview of
the displa yson the multifunc‐
tion display In
stru ment Display with color display
1 Outside temp erature
2 Transmission position
3 Clock
4 Display section In
stru ment Display with black and white dis‐
play
1 Outside temp erature
2 Display section
3 Clock
4 Transmission position
Fu rther displa yson the multifunction display:
0097 Gearshift
recommendation
é Parking Assist PARKTRONIC swit ched
off
00B2 Cruise cont
rol (/ page 141)
ç Active Dis tance Assi stDISTRONIC
(/ page 143) In
stru ment Display and on-board computer 16 5
Page 190 of 354

DSR (/
page 120)
00D9 HOLD fu
nction (/ page 145)
00CE Ad
aptive Highbeam Assist(/ page81 )
00D7 AT
TENTION ASSIST deactivated
003E A door is not fully closed.
00C5 Re
ar wind owwiper swit ched on
(/ page 89)
002E LO
W RANGE active (/ page119)
SOS
NOT
RE ADY Emergency call sy
stem not active Ac
tive Lane Keeping Assist switched
off (/ page155)
00D4 Ac
tive Brake Assi stdeactivated
(/ page 139) Blind Sp
otAssi stswitched off
(/ page 152) Se
tting the in strument lighting #
Turn brightness control knob 1upwards or
down wards.
The lighting on the Instrument Display and
th e cont rol elements in theve hicle interior is
set.
% In
vehicles without brightness contro l knob
1, the instrument lighting can be set via the
on-board computer (/ page170). Menus and submenus
Calling up functions on
the service menu On-board computer:
4 Service #
Select and con firm there qu ired function.
The following functions are available on the
Service menu:
R Messages: message memo ry (/ page 277)
R DEF : Displ aysth e DEF range and le vel
( / page 128)
R Tires :
- Che cksth e tire pressure with the tire
pressure monitoring sy stem
(/ page 239)
- Restarts the tire pressure monitoring sys‐
te m (/ page240)
R ASSYST PLUS: calls up the service due date
(/ page 202)
R Engine Oil Level : measures engine oil le vel
R Long-term consumption Calling up
the assistant display On-board computer:
4 Assistance #
Select the desired display and confirm.
The following displa ysare available on the assis‐
ta nt displ ay:
R Assi stant display
R Attention le vel (/ page 151) #
Swit chbetween the displa ysand con firm the
selected displa y. 16 6
Instrument Display and on-board computer
Page 191 of 354

Instrument Display with color display
The
following status displa ysare available on the
assis tant displ ay:
R 00D7 :AT TENTION ASSIST switched off
R Displa ysoftheAc tive Dis tance Assi st
DISTRONIC (/ page 143) In
stru ment Display with black and white display
The following status displa ysare available on the
assis tant displ ay:
R Lane markings dotted: Lane Keeping Assist
switched off
R Lane markings solid and thin: Lane Keeping
Assist switched on, not ready toissue warn‐
ings
R Lane markings solid and thick: Lane Keeping
Assist ready toissue warnings Calling up displa
yson the trip menu On-board computer:
4 Trip #
Select the desired display and confirm.
The following displa ysare available on the trip
menu:
R Standard display R
Range and cur rent fuel consu mption
Wi th cer tain engines a recuperation display is
also shown. If only a small amount of fuel is
left in the fuel tank, a vehicle being refueled
appears ins tead of the appr oximate range.
R ECO displ ay (/page 113)
R Trip computer:
- From Start
- From Reset
R Digital speedom eter Instrument Display with color display
Standard display (e xamp le)
1 Trip dis tance
2 Total dis tance Instrument Display wi
thblack and white display
St andard display (e xamp le)
1 Trip dis tance
2 Total dis tance Instrument Display and on-board compu
ter167
Page 192 of 354

Instrument Display with color display
Trip computer (e xamp le)
1 Distance co vered (from start/ from reset)
2 Driving time (from start/from reset)
3 Average speed (from start/from reset)
4 Average fuel consum ption (from start/from
re set) Instrument Display with black and white display
Trip computer (e xamp le)
1 Distance co vered (from start/from reset)
2 Driving time (from start/from reset)
3 Average speed (from start/from reset)
4 Average fuel consum ption (from start/from
re set) Re
setting values on the on-boa rdcompu ter
trip menu On-board computer:
4 Trip
% The spelling of
the displa yed main menu may
dif fer. Therefore, pay attention tothe menu
ove rview forth e instrument display
(/ page 164).
Yo u can reset theva lues of thefo llowing func‐
tions:
R Trip Odometer :
- Reset Trip Odometer?
R Trip computer:
- From Start -
From Reset
R ECO display #
Select the function that is tobe reset and
confirm this selection. #
Confirm theReset Values? promptwith Yes. Selecting a
radio station On-board computer:
4 Trip 1
Frequency range
2 Station
3 Name of the track
4 Artist's name
The following displa ysare available:
R Frequency range
R Station list #
Select thera dio station's frequency or a radio
st ation from thest ation list. #
Confirm the selection.
When you select a station in thest ation memor y,
th estorage location appears beside thest ation
name. When you select a sa vedstation in the fre‐
qu ency range, a star appears beside thest ation
name. 16 8
Instrument Display and on-board computer