
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 (/ page517). Engine com
partment 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. 518
Maintenance and care

Opening
the bonnet #
Torelease the bonn et, pull on 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:
R The engine has been warmed up.
R The vehicle is par ked on a le vel sur face.
R The engine is running at idle speed.
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.
On-board computer: 4 Service 5
Engine oil level
Yo u will see one of thefo llowing messages on
th e multifunction display:
R Engine oil level Measuring now : measure‐
ment of the oil le vel is not yet possible. 520
Maintenance and care

R
The jump lead/charging cable must not
come into contact with any parts which may
mo vewhen the engine is running.
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 be pe rformed using
only batteries with a nominal voltage of 12V.
R The vehicles must not touch.
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 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 005D.
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 547

Display messages
Possible causes/consequences and 0050
0050Solutions
Ù Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning. Steering capability is significant lyimpaired. &
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.
0051 *A
t least one door is open. #
Close all doors.
0066 *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. 646
Displaymessa ges and warning/indicator lamps

Emer
gency engine start ......................... 553
Emer gency key
Inserting/removing ............................... 81
Locking a door ....................................... 86
Un locking a door .................................. .86
Un locking theta ilgate .......................... .92
Emer gency operation mode
St arting theve hicle .............................. 176
Emer gency spare wheel ..........................574
Inflating ............................................... 575
No tes ................................................... 574
Re moving ............................................. 575
ENERGIZING Coach Calling up ............................................ 386
Fu nction .............................................. 386
ENE RGIZING COMFORT ...........................381
Overview of programmes .................... 382
St arting the programme ......................3 84
ENERGIZING seat kinetics Setting ................................................ .381
ENERGIZING seat kinetics see ENERGIZING COMFORT Engine
ECO start/ stop function ......................1 84
Engine number ..................................... 61 5
St arting (Digital Vehicle Keyst icke r) .... 175
St arting (eme rgency operation
mode) .................................................. 176
St arting (mobile phone) ...................... .175
St arting (Remo teOnline) ..................... 17 7
St arting (s tart/s top button) .................1 74
St arting assis tance .............................. 547
Switching off (s tart/s top button) ........ 203
Engine bonnet Opening/closing .................................. 51 8
Engine data Displaying ............................................ 191
Engine electronics Notes .................................................. 580
Engine number ......................................... 61 5
Engine oil .................................................. 521
Ad ditives .............................................6 23
Capacity .............................................. 623
Che cking the oil le vel using the on-
board computer ................................... 520
MB-Fr eigabe or MB-Appr oval .............. .623 Quality ................................................. 623
To
pping up ...........................................5 21
Entering characters ................................ 363
Fu nction/no tes ................................... 363
On theto uchpad .................................. 364
On theto uchsc reen (media display) ....3 67
Setting theke yboard .......................... .370
Entering/exiting le vel
Setting ................................................. 250
EQ Boo st
Operating saf ety .................................... 24
ERA-GLONASS test mode
St arting/ending .................................. .472
ESC (Electronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 218
Off-road ............................................... 217
Tr ailer stabilisation .............................. .218
ESP ®
(Electronic Stability Prog ram) ....... 214
Ac tivating/deactivating ...................... .217
Fu nction/no tes .................................... 214
EU general operating permit number ....615 722
Index