#
Select Generate security key .
A connection will be es tablished with the
newly crea ted security key. #
Tosave a security key:select Save.
When a new security key is sa ved, all existing
Wi -Fi connections are then disconnected. If
th eWi -Fi connections are being re-es tab‐
lished, the new security key must be ente red. Re
setting the multimedia sy stem (reset func‐
tion) &
WARNING Risk of accidents due tofail‐
ure of multimedia display functions
While the multimedia sy stem is being reset,
its functions such as there ve rsing camera
are not available. #
Only re setthe multimedia sy stem when
th eve hicle is stationar y. Multimedia sy
stem:
4 © 5
Settings 5
System 5
Reset
Pe rsonal data is dele ted, forex ample:
R Station presets
R Connec ted mobile phones
R Individual user profiles
% The guest profile is reset when the settings
are restored tothefa ctory settings.
A prom ptappears again asking whe ther you
re ally wish toreset. #
Select Yes.
The multimedia sy stem is reset tothefa ctory
settings. If you ha veset a PIN foryo ur sys‐
te m, this will also be reset. Na
vigation Note
s on navigation Ro
ute guidance with augmented reality &
WARNING Risk of accident and inju ryas
a re sult of distraction, incor rect depic‐
tion or wrong interpr etation of the dis‐
play
The camera image of the augmented reality
display is not suitable as a guide for driving. #
Alw ayske ep an eye on the actual traf fic
situation. #
Avoid extended obser vation of the cam‐
era image. &
WARNING Risk of accident and inju ry
due toimprecise positioning of addi‐
tional information
The additional information from the augmen‐
te dre ality display is not a substitute for
observing the actual driving situation. 266
MBUX multimedia sy stem
*
NO
TEDama gefrom auto matic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer‐
ta in situations:
R Active Brake Assi st
R Active Dis tance Assi stDISTRONIC
R HOLD function
R Active Parking Assist
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
during towing #
in a car wash *
NO
TEDama gedue tounsuitable car
wa sh #
Before driving into a car wash make
sure that the car wash is suitable for
th eve hicle dimensions. #
Ensure there is suf ficient ground clear‐
ance between the underbody and the
guide rails of the car wash. #
Ensure that the clearance width of the
car wash, in particular the width of the
guide rails, is suf ficient. To
avo id damage to yourvehicle when using a
car wash, ensure thefo llowing beforehand:
R Active Dis tance Assi stDISTRONIC is deacti‐
va ted.
R The HOLD function is switched off.
R The 360° Camera or there ve rsing camera is
switched off.
R The side windo wsand sliding sun roof are
comple tely closed.
R The bl owerfo rth eve ntilation/heating is
switched off.
R The windsc reen wiper switch is in position
g.
R The key is at a minimum dis tance of 3 m
aw ay from theve hicle. Otherwise theta ilgate
could open unin tentional ly. R
In automatic car washes with con veyo r sys‐
te ms:
- Neutral iis engaged.
- Ifyo uwo uld like tolea vetheve hicle while
it is being washed, make sure theke y is
located in theve hicle. The park position
j isotherwise automatically engaged.
% If, af terth e car wash, youre mo vethewax
from the windscreen and wiper rubbers, this
will pr event smearing and reduce wiper
noise. Information on using a high-p
ressure cleaner &
WARNING Risk of an accident when
using high-pressure cleane rswith round-
spray nozzles
The wate r jet can cause extern ally invisible
damage.
Components damaged in this wa y may unex‐
pec tedly fail. 306
Maintenance and care
#
Do not use a high-pressure cleaner wi th
ro und-spr aynozzles. #
Have damaged tyres or chassis parts
re placed immediatel y. To
avo id damage to yourvehicle, obser vethefo l‐
lowing when using a high-pressure cleaner:
R The key is at a minimum distance of 3 m
aw ay from theve hicle. Otherwise theta ilgate
could open unin tentional ly.
R Maintain a dis tance of at least 30 cm tothe
ve hicle.
R Vehicles with decora tivefoil: Parts of your
ve hicle are co vered with a decorative foil.
Maintain a dis tance of at least 70 cm
between thefo il-c ove red parts of theve hicle
and the nozzle of the high-pressure cleaner.
Mo vethe high-pressure cleaner nozzle
around whilst cleaning. The waterte mp era‐
ture of the high-pressure cleaner must not
exc eed 60°C.
R Obser vethe information on the cor rect dis‐
tan ce in the equipment manufacturer's oper‐
ating instructions. R
Do not direct the nozzle of the high-pressure
cleaner directly at sensitive parts, such as
tyres, gaps, elect rical components, batteries,
light sou rces and ventilation slits. Wa
shing theve hicle byhand *
NO
TEEngine damage duetowa ter
ing ress #
Take care not topoint thewate r jet
directly towa rdsth e air inlet grille below
th e bonn et. obser
vethe legal requ irements, e.g. in a number
of countries, washing byhand is only permitted
in specially designated wash ba ys. #
Use a mild cleaning agent, e.g. car shampoo. #
Washtheve hicle with luk ewarmwate r using
a soft car sponge. When doing so, do not
ex pose theve hicle todirect sunlight. #
Carefully hose theve hicle off with water and
dry using a chamois. %
Obse rveth e no tes on the care of car parts
(/ page 309). Note
s on paint work/matt finish paintwork
care Obse
rveth e no tes on cleaning and care toavo id
damaging the paintwor k.
Pa int
R Insect remains: soak with insect remo ver and
ri nse off the treated areas af terw ards.
R Bird droppings: soak with water and rinse off
af te rw ards.
R Tree resin, oils, fuels and greases: remo veby
ru bbing gently wi tha clo thsoaked in petro‐
leum ether or lighter fluid.
R Coolant and brake fluid: remo vewith a damp
clo thand clean water.
R Tarst ains: use tar remo ver.
R Wax: use silicone remo ver.
R Do not attach sticke rs,fi lms or similar mate‐
ri als.
R Remo vedirt immediately, where possible. Maintenance and care
307
Fr
equency band Maximum transmis‐
sion output
2 m frequency band
14 4 - 174 MHz 50 W
Te rrestrial Trunked
Ra dio (TETRA)
380 - 460 MHz 10 W
70 cm frequency
band
400 - 460 MHz 35 W
Tw o-w ayradio
(2G/3G/4G) 10 WThe
following can be used in theve hicle without
re strictions:
R two-w ayradios with a maximum transmission
output of up to100 mW
R RF transmitters with transmitter frequencies
inthe 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(TETRA) R
mobile phones (2G/3G/4G)
There are no restrictions when positioning the
aerial on the outside of theve hicle forth efo llow‐
ing frequency bands:
R Terrestrial Trunked Radio (TETRA)
R 70 cm frequency band
R 2G/3G/4G Re
gulatory radio identification of small
co mp onents
Manufacturer information about radio-based
ve hicle components can be found using thekey
phrase "Regulatory radio identification" in the
Digital Operator's Manual in theve hicle, on the
internet and in the app. Ve
hicle identification plate, VIN and engine
number overview
Ve hicle identification plate Te
ch nical da ta355
Key
Display messages
Possible causes/consequences and M MSolutions
Á Replace key *H
avetheke yre placed. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page75).
Á
Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page154). 374
Displaymessa ges and warning/indicator lamps
Display messages
Possible causes/consequences and M MSolutions
Á Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page154).
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page154). Displ
aymessa ges and warning/indicator lamps 375
Brake Assist
System
see BAS (Brake Assi stSystem)
Brake fluid
No tes....................................................3 64
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................1 89
Brakes ABS (Anti-lock Braking Sy stem).............1 86
Ac tive Brake Assi st................................ 206
Ad aptive brake lights............................. 191
BA S (Brake Assi stSystem).................... 186
Driving tips........................................... .157
EBD (Electronic Brake forc e Distribu‐
tion).......................................................1 89
HOLD function....................................... 19 0
Limited braking ef fect (salt-treated
ro ads).................................................... 157
New/replaced brake linings/brake
discs...................................................... 15 5
Ru nning-in no tes.................................... 15 5
Braking assistance see BAS (Brake Assi stSystem) Breakdown
Overview of the help functions................ 18
To w- starting........................................... 331
To wing away.......................................... 327
Tr ansporting theve hicle........................ 329
Wheel chang e....................................... .345
Breakdown see Flat tyre
Buttons Steering wheel...................................... 250 C
Calls Mercedes me......................................... 278
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care)......................................... 305 Car-to-X-Communication
Displaying hazard warnings.................. .272
Care 360° camera........................................ .309
Air-water duct........................................ 305
Au tomatic car wash............................... 305
Carpe t.................................................... 310
Deco rative foil...................................... .308
Displ ay................................................... 310
Exterior lighting.................................... .309
High-p ressure cleaner........................... 306
Matt finis h............................................. 307
Pa int wo rk.............................................. 307
Plastic trim............................................ 310
Re alwo od/trim elements......................3 10
Re versing camera................................. .309
Ro of lining.............................................. 310
Ru nning boards..................................... 309
Seat belt................................................ 310
Seat co ver............................................. 310
Senso rs................................................. 309
St eering wheel....................................... 310
Ta ilpipes................................................ 309
Tr ailer hit ch........................................... 309
Wa shing byhand................................... 307 444
Index
Wi
reless vehicle components.................. 26
Decorative foil (cleaning instructions) .... 308
DeNOx agent see AdBlue ®
De stination entry
En tering a POI or address...................... 269
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection .............................. 30
Diesel Low outside temp eratures..................... 360
No tes....................................................3 60
Digital Owner's Manual .............................. 20
Dinghy towing
see Tow- bar sy stem
DIRECT SELECT le ver
Engaging drive position........................ .168
Engaging neutral................................... .167
Engaging pa rkposition.......................... 16 8
Engaging pa rkposition automatically.... 16 8
Engaging reve rsege ar........................... 167
Fu nctio n................................................ 16 6Display (care)
.............................................3 10
Display (MBUX multimedia sy stem)
Home screen........................................ .255
Operating.............................................. 256
Display (on-board comp uter)
Displ ays on the multifunction displa y.... 251
Displ aymessage
Calling up (on-board compu ter)............. 370
No tes..................................................... 370
Display messages ¯ - - - km/h .................................... .397
ç - - - km/h ..................................... 398
È - - - km/h ..................................... 397
# 12V battery See Owner's Man‐
ual..........................................................4 12
Û 48 V battery See Owner's Man‐
ual.......................................................... 414
: Active Light Sy stem inoperative... 377
¯ AdBlue sy stem fault Emer. op.:
max. XXX mphSt art not poss. in XXX
miles .................................................... .422 ¯
AdBlue sy stem fault Emer‐
ge ncy op. in XXX km See Owner's
Manual.................................................. 421
¯ AdBlue sy stem fault Engine
st art not possible................................. .422
¯ AdBlue sy stem fault See Own‐
er's Manual ............................................ 421
5 Add 1 litre engine oil when
next refuelling ....................................... 423
é ATTENTION ASSIST inoperative ....396
é ATTENTION ASSIS T:Take a
break! .................................................... 396
: Automatic driving lights inoper‐
ative....................................................... 376
Á Changekey bat teries .................... 374
J Check brake fluid le vel................. 395
# Check brake pads See Owner's
Manual.................................................. 395
5 Check engine oil le vel when
next refuelling ....................................... 423 Index
447