Page 234 of 381

R
frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
tyres must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS se rvice inter val display
can only calculate the service due da tewhen
th e bat tery is connected. #
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (/ page 230). Engine compartment
Opening/closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the bon‐
net's range of mo vement. #
Open or close the bonn etonly when
th ere is nobody in the bonn et's range of
mo vement. &
WARNING Danger of burn s when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING Risk of injury duetomoving
parts
Components in the engine compartment may
continue running or start up sudden ly,even if
th e ignition is switched off.
Make sure of thefo llowing before per form ing
ta sks in the engine compartmen t: #
Switch the ignition off. Maintenance and care
231
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R
When connecting and disconnecting the bat‐
te ry, alw ays obser vethe sequence of battery
te rm inals desc ribed.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr ovedfo r Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12V.
R The vehicles must not touch.
R Take care toconnect only battery term inals
of identical polarity.
R Obser vethe sequence described for con‐
necting and disconnecting the jumper
cables. R
Vehicles with a petrol engine: jump-start
th eve hicle only when the engine and exhaust
sy stem are cold. St
arting assi stance and charging the 12 V
battery Re
quirements:
R The vehicle is secured with the electric park‐
ing brake.
R Vehicles with automatic transmission: the
transmission is in position j.
R The ignition and all electrical consumers are
switched off.
R The bonnet is open. Example: engine compartment
#
Slide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row. #
Connect positive clamp 2onyour vehicle to
th e positive pole of the donor battery using
th e jump lead/charging cable. Alw ays begin Breakdown assis
tance 255
Page 306 of 381
Display messages
Possible causes/consequences and M MSolutions #
Start theve hicle af ter a few minutes.
The rear wing will mo vetothe original position.
If th e problem persists or the cause cann otbe de tected: #
Consult a qualified specialist workshop.
C *A
t least one door is open. #
Close all doors.
M *T
he bonnet is open. &
WARNING Risk of accident due todriving with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
N *T
he boot lid is open. Display messages and
warning/indicator lamps 303
Page 359 of 381

Easy
exitfeature
Fu nction/no tes .....................................85
Setting ................................................... 85
EBD (Electronic Brake forc e Distribu‐
tion)
Function/no tes ................................... 13 6
ECO start/s top function ......................... 11 2
Au tomatic engine start ........................ .112
Au tomatic engine stop .........................1 12
Operation ............................................. 11 2
Switching off/on .................................. 11 3
Electric pa rking brake ............................ .129
Applying auto matically ........................ 12 9
App lying or releasing manually ............ 13 0
Emergency braking .............................. 131
Re leasing automatically ...................... .130
Electrical fuses see Fuses
Electromagnetic compatibility Declaration of conformity ......................22
Emer gency
Fire extinguisher ................................. .245
Fir st-aid kit (so ftsided) ....................... 24 5
Overview of the help functions .............. 16Re
moving thewa rning triangle ............ 24 4
Saf etyve st ........................................... 24 4
Setting up thewa rning triangle ............ 24 5
Emer gency braking ..................................1 31
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency engine start ......................... 260
Emer gency key
Inserting/removing ............................... 57
Locking a door ....................................... 62
Un locking a door .................................. .62
Emer gency spare wheel .........................2 77
Inflating ............................................... 278
No tes ................................................... 277
Emotion Start
St arting theve hicle .............................. 107
Engine ECO start/ stop function ......................1 12
Engine number .................................... 280
St arting (k ey) .......................................1 07
St arting (s tart/s top button) ................ 106
St arting assis tance .............................. 255
Switching off (s tart/s top button) ........ 12 6Engine bonnet
Opening/closing .................................. 231
Engine data Displaying ............................................ 11 9
Engine electronics Notes .................................................. 280
Engine number ........................................2 80
Engine oil ................................................. 234
Ad ditives .............................................2 84
Capacity .............................................. 285
Checking the oil le vel using the oil
dipstick ............................................... 233
MB-Fr eigabe or MB-Appr oval ...............2 85
No tes ................................................... 11 7
Quality ................................................. 285
To pping up ...........................................2 34
Engine operating temperature
Wa rning lamp ...................................... 108
Engine output Note .................................................... 108
Engine torq ue
No te .................................................... 108356
Index