Page 17 of 441

Activating/deactivating the inte-
rio
rlightin gdelayed switch-off .......282
Active light function .......................123
Automatic he adlampmode ............ 119
Cornering light function .................123
Dipped-bea mheadlamps ............... 120
Driving abroa d............................... 118
Foglamps (extende drange )........... 124
Hazard warning lamps ...................122
Hea dlam pflasher ........................... 122
Light switc h................................... 119
Ma in-beam headlamps ................... 122
Motorway mode ............................. 124
Off-road lights ................................ 124
Parking lamps ................................ 121
Rea rfoglam p................................. 120
Setting the ambient lighting
bri ghtness (on-bo ardc omputer ).... 281
Setting the ambient lighting col-
ou r(on-board computer) ...... .......... 282
Side lamps ..................................... 120
Switch ingA daptive Highbeam
Assist on/of f................................. 281
Switch ingt he daytime driving
lights on/off (on-board computer) .280
Switch ingt he exteri or lighting
delayed switch-off on/off (on-
board computer) ............................ 282
Switch ingt he surround lighting
on/off (on-board computer) ..........282
Turn signals ................................... 121
se eC hangin gbulbs
see Interior lighting
Light sensor (display message) .......303
LI Mi ndicator lamp
Cruise control ................................ 193
DISTRONI CPLUS ........................... 200
Variabl eSPEEDTRONIC .................196
Lim iting the speed
see SPEEDTRONIC
Loading guidelines ............................338
Locking seeC entral locking
Locking (doors)
Automatic ........................................ 84
Emergency lockin g........................... 85
From insi de(central lockin gbut-
ton) .................................................. 83Locking centrally
seeC entral locking
Locking verification signal (on-
board computer) ............................... 283
LO WR ANGE
Display message ............................ 309
Off-road ge ar................................. 254
LO WR ANGE off-road gear ................254
Luggage compartmen tcover
Notes/function .............................. 344
Luggage compartmen tenlarge-
ment Important safety notes ..................341
Luggage compartmen tfloor
opening/closing ............................ 344
stow agew ell, under ....................... 344
Lumbar support
Adjusting (o nthe seat) .................. 108
Luxury head restraint .......................103 M
M+S tyres ........................................... 398
Main-beam headlamps Changing bulbs .............................. 130
Display message ............................ 302
Switch ingA daptive Highbeam
Assist on/of f................................. 125
Switch ingo n/off ........................... 122
Matt fin ish( cle anin ginstructions) ..368
Memory card (audi o)......................... 274
Memory function ............................... 115
Mercedes-Benz Service Centre seeQ ualified specialist workshop
Message memory (on-board com-
puter) ................................................. .290
Mes sages
see Display messages
Mirror
see Vanity mirror (in sun visor)
Mirrors
see Exterior mirrors
see Rear-view mirror
Mobile phone
Frequencies ................................... 421
Installati on .................................... .421
Menu (on-bo ardc omputer )............ 275 14
Index
Page 305 of 441

Displa
ymessages Possible causes/consequences and
M Solutions
b
Le
ft main beam or
Ri ghtm ain beam Th
eleftorr ight-han dhigh beam is faulty.
X Check whether you are permitted to replac ethe bulb yourself
(Y page 12 9).
or
X Visit aqualified specialist workshop. b
Number plat
elamp Th
eleft or right-han dlicence plate lamp is faulty.
X Check whether you are permitted to replac ethe bulb yourself
(Y page 12 9).
or
X Visit aqualified specialist workshop. b
Rear fo
glamp Th
er ear foglam pisfaulty.
X Check whether you are permitted to replac ethe bulb yourself
(Y page 12 9).
or
X Visit aqualified specialist workshop. b
Front
left parking
lamp orFron
tright parking lamp Th
ef ront left or front right parking lamp is faulty.
X Check whethe ryou ar epermitted to repla cethe bulb yourself
(Y page 129).
or
X Visit aqualified specialist workshop. b
Reversin
glight Th
er eversin glamp is faulty.
X Check whether you are permitted to replac ethe bulb yourself
(Y page 12 9).
or
X Visit aqualified specialist workshop. b
Left tail
lamp orRigh
ttail lamp Th
eleft or right-han dtail lamp is faulty.
or
The rear left or right side marker lamp is faulty.
X Check whether you are permitted to replac ethe bulb yourself
(Y page 12 9).
or
X Visit aqualified specialist workshop. 302
Display mess
agesOn-board computer and displays
Page 306 of 441

Displa
ymessages Possible causes/consequences and
M Solutions
b
Le
ft daytim edriv‐ ing lamp or
Ri ght daytim
edriving lamp Th
eleft-han dorright-hand daytime drivin glamp is faulty.
X Chec kwhether you ar epermitted to replace the bulb yourself
(Y page 129).
or
X Visit aqualified specialist workshop. b
Intell
.Light Sys‐ tem inoperative Th
eI ntelligent Light Syste misfaulty. The lights remain available
without the Intelligent Light System.
X Visit aqualified specialist workshop. b
Malfunctio
nSee Owner's Manual Th
ee xterior lighting is faulty.
X Visit aqualified specialist workshop. Vehicles with trailer tow hitch:
afuse may have blown.
X Check the fuses (Y page 391).
X If necessary, replace the blown fuse. Observe the warning notes
as you do so.
If the displa ymessage continues to be displayed:
X Visit aqualified specialist workshop. b
AUTO
lights inoper‐
ative The light senso
risf aulty.
X Visit aqualified specialist workshop. b
Switch of
flights Th
elights are still switched on when you leave the vehicle. A
warnin gtone also sounds.
X Tur nthe light switc htoÃ. Adaptive Main-beam
Assist inoperative Adaptive Highbea
mAssist is faulty.
X Visit aqualified specialist workshop. Adaptive Main-beam
Assist currently
unavailabl
eSee Owner's Manual Adaptive Highbea
mAssist is deactivate dand temporarily inoper-
ative. Possible causes:
R the windscreen is dirty in the camera's field of vision.
R visibility is impaired due to heavy rain, sno worfog.
X Clean the windscreen.
If the system detec tsthat the camera is fully operational again,
the Adaptive Main-beam Assist available again message
is displayed.
Adaptive Highbeam Assist is operational again. Display messages
303On-board computer and displays Z