
&
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly changed at a quali‐
fi ed specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Fu rther information on brake fluid:
R Inthe Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
R Ataqu alified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(→ page 425). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
R Inthe Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
R Ataqu alified specialist workshop. *
NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures. #
Alw ays use an appropriate coolant. Ha
ve the coolant regularly changed at a qualified
specialist workshop. 432
Tech nical da ta

Engine
Display messages
Possible causes/consequences and M
MSolutions
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Add coolant .
? *T
hefan mo tor is faulty. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. 464
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
? Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. &
WARNING Danger of bu rns when opening 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 wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 465

Instrument display (standard)
Instrument display in
the widescreen cockpit Prog
ressive setting (widescreen cockpit) If
yo u select the progressive display setting in
ve hicles with a widescreen cockpit, the position
of the indicator lamps in the instrument display
ch anges.
Wa rning and indicator lamps:
L Dipped beam (→
page123)
T St
anding lights (→ page123)
K Main beam (→
page125)
#! Tu
rn signal light (→ page125)
R Re
ar fog light (→ page123) ü
Seat belt is not
fastened
(→ page 501)
J Brakes (red) (→
page 495)
! ABS malfunction (→
page 495)
÷ ESP®
(→ page 495)
å ESP®
OFF (→ page 495)
! Elect
ric pa rking brake(→ page 495)
Ð St
eering assis tance malfunction
(→ page 503)
# Electrical
fault (→ page 505)
6 Re
stra int sy stem (→ page 495)
; Engine diagnosis (→
page 505)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (→ page 505)
? Coolant
too hot/cold (→ page 505)
· Dis
tance warning (→ page 502)
% Preglow
h Ty
re pressure monitoring sy stem
(→ page 508)
j Tr
ailer hit chis not operational or is
swivelling (→ page 503)494
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening 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 wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. #
Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. 506
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Otherwise: #
Lea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down. #
Check the coolant le vel . #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 507

COMAND
Touch App
see COMAND Touch
Combination swit ch
see Turn signal light
Compass .................................................. 306
Computer .................................................2 46
Connection status
Displ ays ............................................... 333
Overview ............................................. 333
Contacts ................................................... 312
Calling up ............................................ .312
Del eting .............................................. .314
Downloading (from mobile phone) ....... 312
Importing ............................................. 313
Information .......................................... 312
Making a call ........................................3 13
Na me form at ........................................ 313
Options ................................................ 313
Saving .................................................. 313
Controller Operating ............................................ 270
Con venience closing ................................. 81
Con venience opening ................................ 80 Coolant (engine)
Levelch eck ......................................... 369
No tes .................................................. 432
Cooling see Climate control
Co pyright ...................................................28
Cornering light function ..........................127
Co ver.......................................................... 78
Cross Traf fic Alert .................................. .227
Crosswind Assist Function/no tes ................................... 184
Cruise control .......................................... 19 0
Ac tivating ............................................ .191
Calling up a speed .............................. .191
Deactivating ......................................... 191
Fu nction .............................................. 19 0
Le ver ................................................... .191
Re quirements ...................................... 191
Selecting .............................................. 191
Setting a speed .................................... 191
St oring a speed .................................... 191
Sy stem limits ....................................... 19 0Cup holder
see Cup holde rs
Cup holders .............................................. 11 5
Fitting/removing (centre console) ....... 11 5
Re ar .................................................... .116 D
Dashboa rd
see Cockpit
Dashboard lighting ..................................2 48
Data acquisition Vehicle ................................................... 27
Data import/export Function/no tes ................................... 281
Importing/exporting ............................2 81
PIN pr otection for data export .............2 82
Data roaming
Ac tivating/deactivating (telephone
module) ............................................... 324
Declaration of Conformity Electromagnetic compatibility ............... 24
Jack ...................................................... .24
TIREFIT kit ............................................. 25 Index
517

Ac
tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 458
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........457
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 457
bAc tive Light Sy stem inoperative .. 491
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 493
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .493
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .492
4Ad d 1 litre engine oil when next
re fuelling ............................................. 469
Air conditioning Malfunction See
Owner's Manual .................................. 485 Apply brake
todeselect Park (P)
position ...............................................4 81
À ATTENTION ASSIST inoperative ... 454
ÀAT TENTION ASSIS T:Take a
break! .................................................. 454
bAU TOlights inope rative ............... 492
Au xilia rybattery malfunction .............. 484
_Before starting the engine, turn
th esteering wheel. .............................. 485
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 459
Blind Spot Assist inope rative ............... 459
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 62
Brake immediate ly............................... 447
 Changekey bat teries ...................4 78
Ø Check AdBlue See Owne r’s
Manual ................................................ 470
J Check brake fluid le vel................ 4474
Check eng. oil le v.when next
re fuelling ............................................. 467
jChe cktrailer hitch lo ck............... 481
hCheck tyre(s) ............................... 474
! Clean the fuel filter ...................... 472
Clutch overheated Avoid pulling away
fo r XX:XX mins ................................... .484
É Compressor is cooling .................457
? Coolant Stop vehicle Switch
engine off ............................................ 465
Cruise contro l and Limiter inope ra‐
tive ....................................................... 461
Cruise control inope rative ................... 463
Cruise control off ................................. 461
!cu rrently unavailable See Own‐
er's Manual ........................................ .438
÷cur rently una vailable See Own‐
er's Manual ........................................ .440
Depress clutch ful lyto start engine .....4 84
Dis tance Pilot available again .............. 460 Index
519