
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 433). &
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.
The proportion of cor rosion inhibitor/ antifreeze
concentrate in the engine cooling sy stem should
be:
R A minimum of 50% (antifreeze pr otection
down toappr oximately -37 °C). 440
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. 472
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 473

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. 514
Displaymessa ges 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 515

Inserting/removing
theflacon (fra‐
gr ance sy stem) .................................... 15 3
ionisation ............................................ .153
No te .................................................... 14 9
Re ar air vents ...................................... 15 9
Re ar operating unit .............................. 14 9
Re sidual heat ....................................... 15 2
Setting the air distribution ...................1 49
Setting the air flow ............................... 14 9
Setting the climate style ......................1 51
Setting the fragrance sy stem ............... 15 3
Setting thete mp erature ......................1 49
St ationary heater/ ventilation .............. 154
Switching on/off ................................. 15 0
Switching there ar wind owheater
on/off .................................................1 49
THERMATIC control panel .................... 14 9
THERMOTRONIC contro l panel ............14 9
Wi ndsc reen heater .............................. 154
Climate style
Fu nction ............................................... 151
Setting ................................................. 151
Cockpit ........................................................ .6
Overview .................................................6 COMAND Online
see Multimedia sy stem
COMAND Touch ....................................... 291
Au thorising a device ............................2 90
Child saf ety lock .................................. 291
COMAND Touch App
see COMAND Touch
Combination swit ch
see Turn signal light
Combined luggage co ver and net
At tach ing tothere ar seat backrest ...... 11 6
Ins talling/ removing .............................. 11 6
Compass .................................................. .316
Compu ter ................................................. 256
Connection status
Displ ays ............................................... 343
Overview ............................................. 343
Contacts ................................................... 322
Calling up ............................................ 322
Deleting ............................................... 324
Downloading (from mobile phone) ...... 322
Importing ............................................ 323
Information .......................................... 322 Making a call ....................................... 323
Na me form at ...................................... .323
Options ................................................ 323
Saving ................................................. 323
Controller Operating ............................................ 280
Conv enience closing ................................ .81
Con venience opening ................................ 81
Coolant (engine) Levelch eck .......................................... 378
No tes .................................................. 440
Cooling see Climate control
Copyright .................................................. .28
Cornering light function ..........................13 5
Co ver.......................................................... 79
Cross Traf fic Alert .................................. .237
Crosswind Assist Function/no tes ................................... 19 3
Cruise control .......................................... 19 9
Ac tivating ............................................ 200
Calling up a speed ............................... 200 524
Index

ØCheck
AdBlue See Owne r’s
Manual .................................................4 78
J Check brake fluid le vel................ 455
4Check eng. oil le v.when next
re fuelling ............................................. 475
j Check trailer hit chlock .............. .489
hChe cktyre(s) ............................... 482
!Clean the fuel filter .................... .480
Clutch overheated Avoid pulling away
fo r XX:XX mins .................................... 492
ÉCompressor is cooling ................ 465
?Coolant Stop vehicle Switch
engine off ............................................ 473
Cruise cont rol and Limiter inope ra‐
tive ...................................................... 470
Cruise cont rol inope rative .................... 471
Cruise cont rol off ................................ 470
! currently una vailable See Own‐
er's Manual ........................................ .446 ÷cur
rently una vailable See Own‐
er's Manual ........................................ .448
Depress clutch ful lyto start engine .....4 92
Dis tance Pilot available again .............. 468
Dis tance Pilot cur rently una vailable
See Owner's Manual ...........................469
Dis tance Pilot inope rative .................... 469
È .................................................... 470
Ø Eng.start not possible in XXX
mi ........................................................ 479
Ø Eng.start not possible ................479
5 Engine oil le vel cannot be
measured ............................................ 478
4 Engine oil le velRe duce oil le vel...4 76
4 Engine oil le velSt op vehicle
Switch engine off ................................. 476
4 Engine oil pressure Stop Switch
off engine ............................................ 477
6 Example: Front left malfunction
Consult workshop .............................. 459 bExample: Left dipped beam
........ 499
6Example: Left windowbag mal‐
function Consult workshop ................. 459
Example: Parking Pilot Parking can‐
celled ................................................ .468
_Example: Rear left seat back‐
re st not lo cked ................................... 498
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 60
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 461
!inoperative See Owner's Man‐
ual .......................................................4 47
÷ inope rative See Owner's Man‐
ual ....................................................... 449
T inope rative See Owner's Man‐
ual ....................................................... 450
GInope rative ................................. .460
bIntelligent Light Sy stem inoper‐
ative ....................................................4 99 Index
527

ÐSt
eering malfunction Drive
carefully Visit workshop ......................4 94
Ð Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 495
ÐSt eering malfunction See Own‐
er's Manual ......................................... 493
ÐSt eering malfunction Stop
immediately See Owner's Manual .......495
St eering Pilot cur rently una vailable
See Owner's Manual ...........................469
St eering Pilot inoperative .................... 469
St op vehicle Lea veengine running
Wa itTransmission cooling ...................491
# Stop vehicle Lea veengine run‐
ning ..................................................... 475
# Stop vehicle See Owner's Man‐
ual ........................................................ 474
É Stop vehicle Vehicle too low ........ 464
bSwitch off lights .......................... 500
bSwitch on headlamps .................. 500To
shift out of P or N,depress brake
and start engine .................................. 490
To p up coolant See Owner ’sManual ....472
¥ Top up washer fluid .................... .498
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 466
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ......................470
Tr af fic Sign Assi stinope rative .............. 471
j Trailer coupling extending… ......... 488
Tr ansmission Malfunction Stop ............ 491
!Tu rnon the ignition torelease
th e parking brake ................................ 450
Ty re press. monitor cur rently una vail‐
able .................................................... .483
Ty re press. monitor inoperative ...........484
Ty re press. monitor inoperative No
wheel sensors .................................... .484
Ty re pressure Check tyres ...................481
Ty re(s) ove rheated ...............................4 84Ty
re(s) ove rheated Reduce speed ........ 485
dVe hicle is operational Switch
off the ignition before exiting .............. .491
É Vehicle rising Please wait............ 462
ÉVe hiclerising ...............................4 62
hWa rning tyre defect .....................483
hWheel sensor(s) missing ............. 484
Wi thout changing gear, consult work‐
shop ....................................................4 90
Dist ance control
see Dis tance Pilot DISTRONIC
Di stance Pil otDISTRONIC ...................... 202
Ac tivating ............................................ 205
Ac tivation conditions ........................... 205
Calling up a speed ............................... 205
Deactivating ........................................ 205
Fu nction .............................................. 202
Le ver ................................................... 205
Selecting ............................................. 205
Setting a speed ................................... 205
St oring a speed ................................... 205
Sy stem limits ....................................... 202 Index
529