Page 150 of 497

Overview of climate control sy
stems Note
s on climate control Ve
hicles with THERMOTRONIC automatic cli‐
mate control: an interior airfilter must alw ays
be used so that the air conditioning sy stem, the
pollution le vel monitoring and the air filtering
function workcor rectly. Ma kesure that thefilter
is ins talled cor rectly and thefilter housing in the
engine compartment is closed cor rectly using
th e cap and alw ays tightly sealed when in opera‐
tion. Use filters recommended and appr ovedby
Mercedes-Benz. Alw ays ha veservice workcar‐
ri ed out at a qualified specialist workshop. THERMATIC control panel
overview The indicator lamps in
the buttons indicate that
th e cur rent function is acti vated. 1
w Toset the driver's side temp erature
2 _ Toset the air distribution
3 H Toset the air flow or switch off climate
control
4 Ã Toset climate contro lto automatic
mode (→ page149)
5 ¬ Todemist the windscreen 6
Vehicles without a stationary heater: t
to call up the air conditioning menu
Ve hicles with a stationary heater: !to
call up the air conditioning menu, toswitch
th ere sidual heat on/off (→ page151)
7 ¤ Toswitch there ar wind owheater
on/off
8 Vehicles without a stationary heater: 0
to switch the synchronisation on/off
(→ page 150)
Ve hicles with a stationary heater: &to
switch thest ationary heater on/off
(→ page 153)
9 g Toswitch air-recirculation mode on/off
(→ page 150)
A ¿ Toswitch the A/C function on/off
(→ page 149)
B w Toset the front passenger side tem‐
perature THERMOTRONIC control panel
overview The indicator lamps in
the buttons indicate that
th e cur rent function is acti vated. Climate control
147
Page 309 of 497

ASS
YST PLUS se rvice inter val display Fu
nction of the ASS YST PLUS se rvice inter val
displ ay The ASS
YST PLUS service inter val display in the
instrument display pr ovides information on the
re maining time or dis tance be fore the next
service due date.
Yo u can hide this service message using the
back button on the left-hand side of thesteering
wheel.
Yo u can obtain fur ther information concerning
th e servicing of your vehicle from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. Displaying
the service due da teOn-board computer:
, Service .
ASSYST PLUS
The next service due date is displa yed. #
Toexitth e displa y:press the back button
on the left-hand side of thesteering wheel. Make sure
toobser vethefo llowing fur ther rela‐
te d subjec t:
R Operating the on-board computer
(→ page 253). Car
rying out maintenance workatregular
inter vals *
NO
TEPremature wearthro ugh failure to
obser veservice due dates Service
workwhich is not car ried out at the
ri ght time or incomple tely can lead to
inc reased wear and damage totheve hicle. #
Alw ays obser vethe prescribed service
inter vals. #
Alw ays ha vethe prescribed service
wo rkcar ried out at a qualified specialist
wo rkshop. Special service
requ irements The prescribed service inter
val is based on nor‐
mal operation of theve hicle. Maintenance work will need
tobe per form ed more of tenth an
specified if theve hicle is operated under ardu‐
ous conditions or increased loads, forex ample:
R regular city driving with frequent intermedi‐
ate stops.
R ifth eve hicle is primarily used for short-dis‐
ta nce driving.
R for frequent operation in mountainous terrain
or on poor road sur faces.
R ifth e engine is of ten le ftidling for long peri‐
ods.
R in particula rly dusty conditions and/or if air-
re circulation mode is frequently used.
In these or similar operating conditions, ha vethe
interior filter, engine air cleaner, engine oil, oil fil‐
te ret c. changed more frequent ly. The tyres must
be checked more frequently if theve hicle is
operated under increased loads. Further infor‐
mation can be obtained at a qualified specialist
wo rkshop. 306
Maintenance and care
Page 417 of 497
Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor is inter rupte d or the oil le vel sensor is faulty.
The engine oil le vel has dropped tothe minimum le vel. #
Consult a qualified specialist workshop.
! Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter must be drained off. #
Consult a qualified specialist workshop.
¸ Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop.
8 Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel. 414
Displaymessa ges and warning/indicator lamps
Page 468 of 497

Ad
aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........438
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 437
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 437
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .437
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .436
4 Add 1 litre engine oil when
next refuelling ...................................... 413
Air conditioning Malfunction See
Owner's Manual .................................. 428
App lybrake todeselect Park (P)
position ...............................................4 25
Apply brake toselect R ....................... 429 À
ATTENTION ASSIST
inoperative .......................................... 399
À ATTENTION ASSIS T:Take a
break! .................................................. 399
b AUTO lights inope rative .............. 436
Au xilia rybattery malfunction ...............427
_ Before starting the engine, turn
th esteering wheel. .............................. 429
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 402
Blind Spot Assist inope rative ............... 403
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 03
Brake immediate ly............................... 391
 Change key bat teries ................. 422
Ø Check AdBlue See Owne r’s
Manual .................................................4 16
J Check brake fluid le vel.............. .391
4 Check eng. oil le v.when next
re fuelling .............................................. 411j
Check trailer hit chlock .............. 424
h Check tyre(s) .............................. 41 8
! Clean the fuel filter .................... .414
Clutch overheated Avoid pulling away
fo r XX:XX mins ................................... .428
? Coolant Stop vehicle Switch
engine off ............................................ 407
Cruise contro l and Limiter inope ra‐
tive ...................................................... 406
Cruise control inope rative ................... 405
Cruise control off ................................ 405
! currently una vailable See Own‐
er's Manual ........................................ .383
÷ currently una vailable See Own‐
er's Manual ........................................ .384
Dep ress clutch fully tostart engine .....4 28
È .................................................... 406
Ø Eng.start not possible in XXX
km ...................................................... .416
Ø Eng.start not possible ................416 Index
465