
Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
Ac tive Brake Assi st .Engine
Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00B9 Engine diagnosis warning
lamp The
yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emission limit values may be exceeded and the engine may be in emer gency mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow Check Engine warning lamp lights up. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
003D Electrical malfunction warn‐
ing lamp The
red elect rical malfunction warning lamp is lit.
There is a malfunction in the electrics. #
Obser vethe messages on the multifunction displa y.
00B6
Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp lights up while driving.
There has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is leaking. #
Close the fuel filler cap. 472
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
If th e fuel filler cap has already been closed cor rectly: #
Visit a qualified specialist workshop.
00B6 Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel.
00AC
Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:
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 the maximum permissible temp erature. &
WARNING Danger of bu rns when opening the hood
If yo u open the hood when 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 hood, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service. Display messages and
warning/indicator lamps 473

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions #
Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Obser vethe messages on 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.
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (→ page 341). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below there d area. Ti
res Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
0077 The
yellow tire pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring sy stem has de tected tire pressure loss in at least one of the tires. 474
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
Ti re pressure monitoring
sy stem warning lamp lights
up &
WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
R The tires may bur st, especially as the load and vehicle speed increase.
R The tires may wearexc essively and/or une venly, which may greatly impair tire traction.
R The driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tire pressure. #
Adjust the tire pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tire pressure and the tires.
0077 Ti re pressure monitoring
sy stem warning lamp
fl ashes The
yellow tire pressure monitoring sy stem warning lamp (pressure loss/malfunction) flashes for appro ximately one
minute and then remains lit.
The tire pressu remonitoring sy stem is defective. &
WARNING Thereis a risk of an accident if the tire pressure monitoring sy stem is malfunctioning
If th e tire pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss in
one or more of the tires.
Un derinflated tires ma y,forex ample, impair the driving, steering and braking characteristics. Display messages and
warning/indicator lamps 475

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions #
Have the tire pressure monitoring sy stem checked at a qualified specialist workshop. #
Visit a qualified specialist workshop. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
00CC Po we rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po wer-assis tedsteering or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardized. #
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. #
Obser vethe messages on the multifunction displa y.476
Displaymessa ges and warning/indicator lamps

Gas
station sear ch
St arting automatic sear ch................... 263
Switching au tomatic search on/off ..... 270
Using automatic sear ch....................... 270
Gasoline .................................................... 411
Gearshift recommendation ....................14 2
Genuine parts ............................................ 19
Glide mode ............................................... 14 2
Glo vebox
Air vent ................................................ 12 8
Locking/unlocking ...............................1 01H
Handbrake see Electric parking brake
Handling characteristics (unusual) ........376
HANDS-FREE ACCESS ................................ 69
Haza rdwa rning lights ............................ .113
Head airbag ................................................ 37
Head le vel heating (AIRSCARF) ................94
Head restra int
Fr ont (adjusting mechanically) .............. 88 Re
ar (extending and retracting) ............. 90
Re ar (extending from the front) .............89
Re ar passenger compartment (lo wer‐
ing from the front) ................................. 89
Head-up Display ...................................... 220
Ad justing display elements (on-board
compu ter) ............................................ 220
Ad justing the brightness (on-board
computer) ............................................ 220
Fu nction .............................................. 221
Menu (on-board compu ter) .................. 220
Operating the memory function ............ 98
Setting the position (on-board com‐
puter) .................................................. 220
Switching on/off ................................. 221
Headliner (care) ....................................... 354
High beam Switching on/off ..................................1 12
High-beam flasher ................................... 11 2
High-beam headlamps Adaptive Highbeam Assist .................. .114
Hill start assi st........................................ 17 7HOLD function
......................................... 17 7
Fu nction/no tes ................................... 17 7
Switching on/off ................................. 17 7
Hood Function (active hood) ........................ .337
Opening/closing ................................. 338
Re setting (active hood) ........................ 337
Hotspot Setting up (Wi-Fi) ................................. 250 I
Identification plate Engine .................................................4 08
Re frigerant .......................................... .415
Ve hicle ................................................ 408
Ignition Switching on (S tart/S top button) ........ 13 0
Ignition key
see SmartK ey
Immobilizer ................................................ 83
Indicator lamps see Warning/indicator lamps Index
493

K
KEYLESS-GO Locking theve hicle ................................ 63
Problem .................................................64
Un locking setting .................................. 59
Un locking theve hicle ............................63
Kickd own.................................................1 42
Using ................................................... 14 2
Knee airbag ................................................ 37L
Labeling (tires) see Tire labeling
Lamp see Interior lighting
Lamps (Instrument Display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist Language
.................................................2 52
No tes .................................................. 252
Setting .................................................2 52
LA TC H-type (ISOFIX) child seat secur‐
ing sy stem
In stalling ................................................ 52
Le vel control sy stem
see AIRMATIC
Light switch Overview .............................................. 111
Lighting see In terior lighting
see Lights
Lights ........................................................ 111
Ad aptive Highbeam Assist .................. .114
Ad justing the instrument lighting ......... 214
Au tomatic driving lights ....................... 11 2
Combination swit ch............................. 11 2
Corne ring light function ....................... 11 4
Haza rdwa rning lights .......................... 11 3
High beam ............................................ 11 2
High-beam flasher ................................ 11 2
Light switch .......................................... 111
Lo w-beam headlamps .......................... 111Pa
rking lights ...................................... .111
Re ar fog lamp ....................................... 111
Re sponsibility for lighting sy stems .......1 11
Setting theex terior lighting switch-
off delay time ....................................... 11 5
Setting the sur round lighting ................ 11 5
St anding lights .................................... .111
Tu rn signals .......................................... 11 2
Limited Warranty
Ve hicle .................................................. 25
Live Traf fic Information
Displaying subsc ript ion information .... .276
Displ aying the tra ffic map .................. .277
Displ aying traf fic incidents .................. 277
Extending a subscription ...................... 276
Issuing hazard alert s ........................... 278
Load index (tires) .................................... .391
Load-bea ring capacity (tires) ................. 391
Loading Definitions ...........................................3 93
No tes ..................................................... 99
St ow age space under the trunk floor ... 104
Loading guidelines .................................... 99 Index
495

Opening
the trunk lid using your foot
HANDS-FREE ACCESS .......................... .69
Operating fluids
Ad ditives (fuel) .....................................4 12
Brake fluid ............................................ 413
Coolant (engine) .................................. 414
Engine oil ............................................. 412
Fu el (gasoline) ...................................... 411
No tes ................................................... 41 0
Re frigerant (air conditioning sy stem) ... 41 5
Wi ndshield washer fluid ...................... .414
Operating saf ety
Declaration of conformity (wireless
ve hicle components) ............................. 23
Information ............................................ 22
Operating sy stem
see On-board computer
Operator's Manual Vehicle equipment ................................. 20
Operator's Manual (digital) .......................18
Overhead control panel Making calls (Mercedes me connect).............................................................3 02
Overview ................................................ 12 P
Pa int code ................................................ 408
Pa intwork (cleaning instructions) .........346
Pa nel heating
Setting ................................................... 93
Pa nic alarm ................................................ 59
Ac tivating/deactivating ......................... 59
Pa rcel net hooks ...................................... 103
Pa rk position
Inserting .............................................. 141
Selecting au tomatical ly........................ 141
Pa rking
see Electric parking brake
Pa rking aid
see Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC ................... 181
Ac tivating ............................................ 184
Ad justing warning tones ...................... 184
Fu nction ............................................... 181
Side impact pr otection ........................ 182
Switching off ....................................... 184
Sy stem limitations ...............................1 81Pa
rking assistance sy stems
see Active Parking Assist
Pa rking brake
see Electric parking brake
Pa rking for an extended period ..............15 3
Pa rking lights .......................................... .111
Pa rking position
Ex terior mir rors .................................... 121
St oring the position of the front-
passenger outside mir ror using
re ve rsege ar ........................................ .121
PA SSENGER AIR BAGstatus display
see Automatic front passenger front
airbag shutoff
Pa yload
Calculation example ............................ 386
De term ining the maximum .................. 385
Pe destrian pr otection
see Active hood (pedestrian pr otection)
Pe rfume
see Perfume atomizer
Pe rfume atomizer .................................... 12 6
Inserting/removing theflacon ............ .126 500
Index