
fi
ed based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R regular city driving with frequent intermedi‐
ate stops
R mainly short-dis tance driving
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
ty re s 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 495). Engine compartment
Opening/closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up
when theve hicle is in motion and block your
vie w. #
Never unlock the engine 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 engine
bonn et
When opening or closing the engine bonn et,
it may suddenly drop into the end position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Only open or close the engine bonn et
when there are no persons in the
engine bonn et's range of mo vement. &
WARNING Danger of bu rns 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. 496
Maintenance and care

Opening
the bonnet #
Torelease the bonn et, pull on the handle 1.
Closing the bonnet
* NO
TEDama getothe bonn et If
th e bonn etis closed manuall y,there is a
ri sk of dents. #
Do not close the bonn etmanually. #
Push handle 1ofthe bonn etcatch up wards
and lift the bonn etby appr oximately 40 cm. #
Lowe rth e bonn etto a height of around
20 cm and then allow it tofall, applying a lit‐
tle forc e as you let it go. #
Ifth e bonn etcan still be lif ted slightl y,open
th e bonn etagain and close it with a little
more forc e until it engages cor rectly. Engine oil
Che
cking the engine oil le vel using the on-
board compu ter
Re quirements:
The engine oil le vel is de term ined during driving.
De term ining the engine oil le vel can take up to
30 minutes with a normal driving style and even
longer with an active driving style.
In order torecei veare sult as quickly as possi‐
ble:
R warm upthe engine
R park theve hicle on a le vel sur face
R leave the engine running at idle speed 498
Maintenance and care

R
Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean over the batter y.
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 batteries with a nominal voltage of
12 V.
R The vehicles must not touch.
R Petrol engine: only acceptstarting assis‐
ta nce if the engine and exhaust sy stem are
cold. St
arting assi stance and charging the12 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 525

Display messages
Possible causes/consequences and M
MSolutions
Ù Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning. Steering capability is considerably impaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
C *A
t least one door is open. #
Close all doors.
? *T
he bonnet is open. &
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. #
Never unlock the engine bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. Display messages and
warning/indicator lamps 627

Fir
st-aid kit (so ftsided) ........................ 514
Overview of the help functions .............. 18
Re moving thewa rning triangle ............ .513
Saf etyve st ........................................... 513
Setting up thewa rning triangle ............ 514
Emer gency braking ..................................2 15
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency call sy stem
see Mercedes-Benz emer gency call sy stem
Emer gency engine start .......................... 531
Emer gency key
Inserting/removing ............................... 80
Locking a door .......................................87
Un locking a door .................................. .87
Un locking theta ilgate .......................... .93
Emer gency operation mode
St arting theve hicle ............................. 182
Emer gency spare wheel .........................5 52
Inflating ............................................... 553
No tes .................................................. 552
Re moving ............................................ 553 Engine
ECO start/ stop function ......................1 89
Engine number ................................... .560
St arting (Digital Vehicle Keyst icke r) .... 181
St arting (eme rgency operation
mode) .................................................. 182
St arting (mobile phone) ...................... .181
St arting (Remo teOnline) ..................... 183
St arting (s tart/s top button) ................ 180
St arting assis tance .............................. 525
Switching off (s tart/s top button) ........ 208
Engine bonnet Opening/closing .................................4 96
Engine data Displ aying ............................................ 19 6
Engine electronics Notes .................................................. 558
Engine number ........................................5 60
Engine oil ................................................. 499
Ad ditives .............................................5 68
Capacity .............................................. 568
Che cking the oil le vel using the on-
board computer ................................... 498
MB-Fr eigabe or MB-Appr oval .............. .568 Quality ................................................. 568
To
pping up ...........................................4 99
Entering characters ................................. 367
Fu nction/no tes ................................... 367
On theto uchpad ................................ .368
On theto uchsc reen (media display) ....3 71
Setting theke yboard ............................ 374
Entering/exiting le vel
Setting ................................................. 255
EQ Boo st
Operating saf ety .................................... 24
ERA-GLONASS test mode
St arting/ending .................................. 464
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 223
Off-road ............................................... 222
Tr ailer stabilisation .............................. 223
ESP ®
(Elect ronic Stability Prog ram) ....... 219
Ac tivating/deactivating ...................... .222
Fu nction/no tes .................................... 219
EU general operating permit number ....560 664
Index