Display messages
Possible causes/consequences and M
MSolutions
¯ AdBlue system fault Engine
start not possible *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y.Engine oil
Display messages
Possible causes/consequences and M MSolutions
5 Check eng. oil lev. when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (/ page 299).
No tes on engine oil (/ page 357).416
Displaymessa ges and warning/indicator lamps
Display messages
Possible causes/consequences and M
MSolutions
5 Add 1 litre engine oil when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
When next refuelling, add 1 litre of engine oil (/ page 299).
No tes on engine oil (/ page 357).
5 Engine oil level Reduce oil
level *T
he engine oil le vel is too high.
* NO
TEEngine dama gecaused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a qualified specialist workshop immediately and ha vethe engine oil le velre duced.
5 Engine oil level Stop vehi-
cle Switch engine off *T
he engine oil le vel is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Switch off the engine. Display messages and
warning/indicator lamps 417
Display messages
Possible causes/consequences and M
MSolutions #
Add 1 l of engine oil (/ page 299). #
Check the engine oil le vel.
No tes on engine oil (/ page 357).
5
Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient oil pressure #
Avoid driving with insuf ficient oil pressure. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. 41 8
Displaymessa ges and warning/indicator lamps
Ac
tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 201
Display ................................................. 201
Fu nction .............................................. 201
Ac tive Steering Assist ............................ .203
Ac tivating/deactivating ...................... .205
Ac tive Emergency Stop Assist .............2 05
Fu nction .............................................. 203
Sy stem limits ....................................... 203
Ac tive Traf fic Jam Assist
Ac tivating/deactivating ...................... .206
Fu nction .............................................. 206
Ad aptive brake lights ..............................19 3
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction .............................................. 12 8
Switching on/off ................................. 12 9
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 12 9
Switching on/off ................................. 131Ad
Blue ®
.................................................... 356
Ad ditives .............................................3 56
Capacity .............................................. 357
No tes ................................................... 173
Purity ................................................... 356
To pping up ...........................................1 74
Ad ditional door lo ck.................................. 73
Ad diti ves.................................................. 357
Ad Blue ®
............................................... 356
Engine oil ............................................. 357
Fu el ..................................................... 354
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .128
Af ter-sales service centre
see ASS YST PLUS AIR
BODY CONT ROL................................ 208
Setting ................................................ .209
Suspension .......................................... 208
Air conditioning menu Calling up ............................................ 14 2
Air distribution Setting ................................................ .141
Setting (MBUX multimedia sy stem) ..... 14 3
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 14 9
Ad justing (front) .................................. 14 9
Ad justing (rear) .................................... 15 0
Ad justing the AIRSCARF vents ............. 15 0
Air vents
see Air vents 434
Index
¯
AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................. 41 5
¯ AdBlue sy stem fault Engine
st art not possible ................................ .416
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 41 5
5 Add 1 litre engine oil when
next refuelling ...................................... 417
é ATTENTION ASSIST inoperative
.............................................................3 96
é ATTENTION ASSIS T:Take a
break! .................................................. 396
: Automatic driving lights inoper‐
ative ..................................................... 371
Á Changekey bat teries ................. 369
J Check brake fluid le vel.............. .388
# Checkbrake pads See Owner's
Manual ................................................ 388 5
Check eng. oil le v.when next
re fuelling .............................................. 416
ï Check trailer hit chlock .............. 375
h Check tyre(s) .............................. 41 0
! Clean the fuel filter .................... .381
ÿ Coolant Stop vehicle Switch
engine off ............................................ 380
_ Currently una vailable Camera
view restricted ..................................... 400
ç Currently unavailable Radar
sensors dirty .......................................3 99
! currently una vailable See Own‐
er's Manual .......................................... 401
÷ currently una vailable See Own‐
er's Manual ........................................ .402
5 Engine oil le vel cannot be
measured ............................................ .418
5 Engine oil le velRe duce oil le vel.. 417
5 Engine oil le velSt op vehicle
Switch engine off ................................. 4175
Engine oil pressu reStop
Switch off engine ................................. 41 8
ä Fault Drive at max. 80 km/h ...... 393
6 Front left malfunction Consult
wo rkshop (e xample)............................ 366
_ Front left seat backrest not
loc ked (e xamp le)................................ .378
& inoperative Battery low ...............374
& inoperative Refuel vehicle ........... 374
& inoperative See Owner's Man. ....374
! inoperative See Owner's Man‐
ual ....................................................... 402
÷ inoperative See Owner's Man‐
ual ....................................................... 403
T inoperative See Owner's Man‐
ual ....................................................... 404
G Inoperati ve................................. 405
: Intelligent Light Sy stem inoper‐
ative ....................................................3 72 Index
441
Engine electronics
Notes ................................................... 347
Engine number ........................................3 49
Engine oil ................................................. 299
Ad ditives .............................................3 57
Capacity .............................................. 358
Checking the oil le vel using the on-
board computer ................................... 299
MB-Fr eigabe or MB-Appr oval .............. .358
Quality ................................................. 358
To pping up ...........................................2 99
EQ Boost Operating saf ety .................................... 22
Quali fied specialist workshop ................29
ERA-GLONASS test mode
St arting/ending .................................. 286
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 187
Tr ailer stabilisation .............................. 187
ESP ®
(Electronic Stability Prog ram) ...... 185
Ac tivating/deactivating ...................... .187 Fu
nction/no tes ................................... 185
EU general operating permit number ....349
Exterior lighting see Lights
Exterior lighting (care) ............................ 305 F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Fi re extinguisher ...................................... 310
Firs t-aid kit (soft sided) ...........................310
Flacon Inserting/removing ............................ .144
Flat towing
see Tow- bar sy stem
Flat tyre ....................................................3 11
MOExtended tyres ................................ 311
No tes ................................................... 311
TIREFIT kit ............................................ 313
Wheel change ...................................... 341 Floor mats
................................................ 121
Fo g light (extended range) ......................1 27
Fo il co vering
Ra dar and ultrasonic sensors .............. 183
Fr ag rance
see Frag rance sy stem
Fr ag rance sy stem .................................... 14 4
Inserting/removing theflacon ............ .144
Setting ................................................. 14 4
Fr ee software ............................................ 34
Fr equencies
Mobile phone ...................................... 348
Tw o-w ayradio ...................................... 348
Fr ont airbag (driver, front passenger) .....42
Fr ont passenger seat
see Seat
Fu el .......................................................... .354
Ad ditives .............................................3 54
Diesel .................................................. 354
E10 ...................................................... 353
Fu elreser ve ........................................ 355
Low outside temp eratures ...................3 54
Pe trol ................................................... 353 Index
447
Ne
utral
Engaging .............................................. 167
Note s........................................................ 157
Optimised acceleration ........................ 157O
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see Pets in theve hicle
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Oil see Engine oil
On-board computer ................................. 24 6
Displ aying the service due date ........... 295
Head-up display menu .........................2 49
Multifunction display ........................... 24 8
Operating ............................................ 24 6Overview of menus ..............................
24 6
On-board diagnostics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .347
No tes ................................................... 347
Tw o-w ayradios .................................... 347
Online services Data storage .......................................... 33
Online services see In-Car Of fice
Open-source so ftwa re .............................. 34
Opening the bo otlid using your foot
HANDS-FREE ACCESS .......................... .81
Operating fluids
Ad Blue ®
............................................... 356
Ad ditives (fuel) .................................... 354
Brake fluid .......................................... .359
Coolant (engine) .................................. 359
Engine oil ............................................. 357
Fu el (diesel) ......................................... 354
Fu el (petrol) ......................................... 353
No tes ................................................... 351 Wi
ndsc reen washer fluid .................... .360
Operating saf ety
48 V on-boa rdelectrical sy stem ............ 22
Declaration of confo rmity (elect ro‐
magnetic compatibility) ......................... 24
Declaration of conformity (ja ck) ............ 27
Declaration of conformity (TIREFIT kit) .. 28
Declaration of conformity (wireless
ve hicle components) ............................. 24
EQ Boo st............................................... 22
Information ............................................ 22
Ope rating sy stem
see On-board computer
Optimised acceleration ...........................157
Ac tivating ............................................ .157
Outside mir rors ............................... 137, 13 8
Anti-dazzle mode (automatic) .............. 13 8
Au tomatic mir rorfo lding function ........ 13 9
Fo lding in/out .................................... .137
Operating the memory function ........... 11 0
Pa rking position .................................. .138
Setting ................................................. 137
Overhead control panel Overview ................................................ 12454
Index