
#
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen 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 bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. #
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. #
Remo vethe cap 1bytheta b. #
Top up thewa sher fluid. Ke
eping the air-water duct free #
Keep the area between the bonn etand the
windscreen free of deposits, e.g. ice, sn ow
and lea ves. Cleaning and care
Information on
washing theve hicle in a car
wa sh &
WARNING Risk of an accident due to
re duced braking po wer af terwa shing the
ve hicle
Braking ef ficiency is reduced af terwa shing
th eve hicle. #
Afterth eve hicle has been washed,
brake carefully while paying attention to
th e traf fic conditions until braking
po we r has been fully restored. Maintenance and care
491

Note
s on paint work/matt finish paint workcare Obser
vethefo llowing information: Cleaning and car
eA voiding paintwork damage
Pa intwork R
Insect remains: soak with insect remo ver and rinse off the
trea ted areas af terw ards.
R Bird droppings: soak with water and rinse off af terw ards.
R Tree resin, oils, fuels and greases: remo veby rubbing gen‐
tly wi tha clo thsoaked in petroleum ether or lighter fluid.
R Coolant and brake fluid: remo vewith a damp clo thand
clean water.
R Tarst ains: use tarre mo ver.
R Wax: use silicone remo ver. R
Do not attach sticke rs,fi lms or similar materials.
R Remo vedirt immediatel y,where possible. 494
Maintenance and care

VIN and engine number
1
Engine number stamped into the crankcase
2 VIN (vehicle identification number) stamped
into the crossmember
3 VIN (vehicle identification number) as a label
at the lo wer edge of the windscreen
The VIN as a label at the lo wer edge of wind‐
screen 3is only available in some countries.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Operating
fluids Note
s on operating fluids Mercedes-AMG
vehicles: be sure toobser ve
th e no tes in the Supplement. Otherwise, you
may failto recognise dangers. &
WARNING Risk of inju ryfrom operating
fl uids harmful to your health
Operating fluids may be poisonous and harm‐
ful to yo ur health. #
Obser vethete xt on the original con‐
ta iners when using, storing or disposing
of operating fluids. #
Alw aysst ore operating fluids sealed in
th eir original conta iners. #
Alw ayske ep children away from operat‐
ing fluids. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal #
Dispose of operating fluids in an envi‐
ro nmentally responsible manner. Operating
fluids include thefo llowing:
R fuels
R DeNOx agent AdBlue ®
forex haust gas af ter‐
treatment
R lubri cants
R coolant
R brake fluid
R windsc reen washer fluid
R climate cont rol sy stem refrigerant
Only use products app rove dby Mercedes-Benz.
Damage caused bythe use of products that ha ve
not been appr oved is not co veredby the
Mercedes-Benz warranty or goodwill gestures.
Yo u can identify operating fluids appr ovedby
Mercedes-Benz bythefo llowing insc ript ions on
th e conta iner: 552
Tech nical da ta

Re
placement amount Mode
lR eplacement
amount
GLB 200 5.1 litres
GLB 250 4MATIC 5.5 litres
All other models 6.8 litresNote
s on brake fluid Obser
vethe no tes on operating fluids
(/ page 552). &
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid cons tantly absorbs moi sture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly replaced at a
qu alified specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Yo u can obtain fur ther information on brake fluid
in thefo llowing places:
R inthe Mercedes-Benz Specifications for
Operating Fluids
- at https://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo app
R at a qualified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(/ page 552). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction. Te
ch nical da ta559

Display messages
Possible causes/consequences and M
MSolutions #
Immediately depress the brake pedal firm lyuntil the display message disappears.
Yo u can restart the engine.
J
Check brake fluid level *T
here is insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Do not top up the brake fluid. #
Consult a qualified specialist workshop.
# Check brake pads See
Owner's Manual *T
he brakepads ha vereached thewe ar limit. &
WARNING Risk of accident due torestricted braking po wer
When the brake pads ha vereached their wear limit, the braking po wer may be restricted. #
Drive on carefully. Display messages and
warning/indicator lamps 595

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Ifth e multifunction display sho wsa display message, please obse rve it. #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) The
red brake sy stem warning lamp is lit while the engine is running.
*Possible causes: R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
R The reis insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of accident and inju ryif brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal forc e may be necessary for braking. The braking
ch aracteristics may be impaired. The braking dis tance can increase in emergency braking situations. #
Stop in a safe location immediately. Do not continue driving! #
Consult a qualified specialist workshop. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. 632
Display messages and warning/indicator lamps

Brake
fluid
No tes .................................................. 559
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 231
Brakes ABS (Anti-lock Braking Sy stem) ........... 226
Ac tive Brake Assi st.............................. 231
Ad aptive brake lights .......................... .237
BA S (Brake Assi stSystem) .................. 226
Driving tips .......................................... 191
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 231
HOLD function .....................................2 55
Limi ted braking ef fect (salt-trea ted
ro ads) .................................................. 191
New/replaced brakepads/brake
discs .................................................... 19 0
Ru nning-in no tes ..................................1 90
Braking assi stance
see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 18
To w- starting ........................................ .519 To
wing away ......................................... 516
Tr ansporting theve hicle ....................... 517
Wheel change ...................................... 539
Breakdown see Flat tyre
Bu rm ester ®
sur round sound sy stem .....4 81
Ad justing the balance/fader ................4 81
Ad justing the sound focus ................... 482
Ad justing treble, mid-range and bass
settings ................................................ 481
Au tomatic volume adjustment ............ .481
Calling up the sound menu .................. 481
Information .......................................... 481
Selecting the sound profile .................. 482
Butto ns
St eering wheel .................................... 295 C
Call list Deleting ............................................... 435
Making a call ....................................... 435
Overview ............................................. 434
Selecting options ................................ 435
Selecting options for suggestions ........ 435 Calling up
the sound menu
Adva nced sound sy stem ......................4 82
Burmes ter®
sur round sound sy stem ....4 81
Calls .......................................................... 430
Ac cepting ............................................ 430
Ac tivating functions du ring a call ........ 430
Calls wi thseveral participants ............ .430
Declining ............................................. 430
Ending a call ........................................ 430
Incoming call during an existing call .... 431
Making ................................................ 430
Mercedes me ...................................... 447
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ........................................4 91
Car-to-X-Communication Displaying hazard warnings ................ .408
Overview ............................................. 407
Sending haza rdwa rnings .................... 408 644
Index

¯
AdBlue sy stem fault Engine
st art not possible ................................ 620
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 61 9
5 Add 1 litre engine oil when
next refuelling ...................................... 621
é ATTENTION ASSIST inoperative
.............................................................5 96
é ATTENTION ASSIS T:Take a
break! .................................................. 596
b Automatic driving lights inoper‐
ative .................................................... 573
û Before starting the engine, turn
th esteering wheel. .............................. 581
J Brake immediately ......................594
Á Changekey bat teries .................. 571
J Check brake fluid le vel.............. .595
# Checkbrake pads See Owner's
Manual ................................................ 595 ï
Check trailer hitch lock (white
display message) .................................5 77
h Check tyre(s) .............................. 61 4
! Clean the fuel filter .................... .585
ÿ Coolant Stop vehicle Switch
engine off ............................................ 584
_ Currently una vailable Camera
view restricted ..................................... 602
ç Currently unavailable Radar
sensors dirty ........................................ 601
! currently una vailable See Own‐
er's Manual ........................................ .606
÷ currently una vailable See Own‐
er's Manual ........................................ .608
5 Engine oil le vel cannot be
measured ............................................ 623
5 Engine oil le velRe duce oil le vel.. 621
5 Engine oil le velSt op vehicle
Switch engine off ................................ 622 5
Engine oil pressure Stop
Switch off engine ................................ 622
ä Fault Drive at max. 80 km/h ...... 597
6 Front left malfunction Consult
wo rkshop (e xample)............................ 567
& inoperative Battery low ...............576
& inoperative Refuel vehicle ........... 576
& inoperative See Owner's Man. ....576
! inoperative See Owner's Man‐
ual ....................................................... 607
÷ inoperative See Owner's Man‐
ual ....................................................... 608
T inoperative See Owner's Man‐
ual ....................................................... 609
G Inoperati ve.................................. 611
î inoperative ................................. 604
b Intelligent Light Sy stem inoper‐
ative ..................................................... 574
Á Key not de tected (red displ ay
messa ge).............................................5 72 Index
649