bonnet MERCEDES-BENZ C-CLASS ESTATE 2020 Owners Manual

#
Toremo ve:using a suitable object, turn the
two mounts 1ofthe co ver2 in an anti-
clockwise direction as far as they will go. #
Remo vethe unloc ked co ver2 from the
wheel ar chliner bypulling it upwards. #
Tofit: inse rtco ver 2 at bottom of the wheel
ar ch liner. #
Using a suitable object, turn the two mounts
1 ofthe co ver2 in clockwise direction as
fa r as they will go.
Re placing bulbs in the halo gen headla mp
Re quirements:
The lighting sy stem is switched off.
Low beam/high beam
R A H7 55 W light bulb is available.
R The bonnet is open.
Tu rn signal lights:
R A PWY 24W light bulb is available.
R The co ver in the front wheel ar chhas been
re mo ved. 1
Low beam
2 High beam
3 Turn signal lights #
Turn there leva nt housing co ver1–3 anti-
clockwise and remo veit. #
Low beam / high beam: turnthe soc ket
anti-clockwise and remo veit. #
Indicator: turnthe soc ket anti-clo ckwise,
re lease it and remo veit. #
Pull the bulb out of the soc ket. #
Inse rtthe new bulb into the soc ket su chthat
th e entire base of the bulb is resting on the
bottom of the soc ket. #
Inse rtthe soc ket and turn it clo ckwise. #
Press on the housing co ver and turn it clock‐
wise. #
Turn signal lights: installth e co ver in the
front wheel ar ch. Changing
there ar bulbs (vehicles with halo‐
ge n headla mps) Opening and closing
the side trim panels in
th e load compa rtment #
Toopen: release the side trim panel on the
left or right 1attheto p and fold it down in
th e direction of the ar row. 14 0
Light and sight

fi
ed based on the actual operating conditions
and/or loads.
Examples of arduous operating conditions:
R regular city driving with frequent intermedi‐
ate stops
R mainly short-dis tance driving
R frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
ty re s must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS service inter val display can
calculate the service due date only when the
battery is connec ted. #
Notedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (/ page378). Engine comp
artment Ac
tive bonn et(pedestrian pr otection) Operation of
the active bonnet (pedestrian
pr otection)
In cer tain accident situations, the actuation of
th e active bonn etreduces therisk of injury to
pedestrians. The rear area of the bonn etis
ra ised byappr oximately 85 mm.
Fo rth e drive tothewo rkshop, reset the actuated
active bonn etyourself (/ page379).
Af terth e active bonn ethas been actuated,
pedestrian pr otection may be limited.
Ha ve the full functionality of the active bonn et
re stored in a qualified specialist workshop. Re
setting the active bonnet &
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. Maintenance and care
37 9

#
With your hand flat, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows).
In doing so, the actuator is depressurised
and you may hear a hissing sound.
The engine bonnet must en gage in position. #
Ifth e active bonn etcan be raised slight lyat
th ere ar in the area of the hinges, repeat the
st ep until it engages cor rectl y. Opening and closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Do not open or close the bonn etifth ere
is a person in the bonn et's range of
mo vement. &
WARNING Risk of burn s when opening
th e bonn et
If yo u open the bonn etwhen the engine has
ove rheated or when there is a fire inthe
engine compartment, thefo llowing situations
may occur:
R You could come into contact with hot
ga ses.
R You could come into contact with other
hot, escaping operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the bonn etclosed and
call thefire service. &
WARNING Risk of injury duetomoving
parts
Components in the engine compartment may
continue running or start up sudden ly,even if
th e ignition is switched off.
Make sure of thefo llowing before per form ing
ta sks in the engine compartmen t: #
Switch the ignition off. #
Neverre ach into the danger zone sur‐
ro unding moving co mponents, e.g. the
ro tation area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving parts. 380
Maintenance and care

&
WARNING Risk of injury fromtouching
co mp onents under voltage
The ignition sy stem and the fuel injection
sy stem workunder high voltage. You could
re cei vean electric shoc k. #
Neverto uch co mponents of the ignition
sy stem or the fuel injection sy stem
when the ignition is switched on. &
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. &
WARNING Risk of injury from usingthe
windscreen wipers while the engine bon‐
net is open
When the engine bonn etis open, and the
windscreen wipers are set in motion, you can
be trapped bythe wiper linkage. #
Alw ays switch off the windscreen wip‐
ers and ignition before opening the
engine bonn et. *
NO
TEPlug-in hybrid #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Opens the bonnet
#
Torelease the bonn et, pull on handle 1. Maintenance and care
381

#
Push handle 1ofthe bonn etcatch up wards
and lift the bonn etuntil it opens automati‐
call y.
Closing the bonnet #
Lowe rth e bonn etto a height of around
20 cm and then allow it tofall, applying a lit‐
tle forc e as you let it go. #
Ifth e bonn etcan still be lif ted slightl y,open
th e bonn etagain and close it with a little
more forc e until it engages cor rectly. Engine oil
Che
cking the engine oil le vel using the oil
dip stick &
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in
th efo llowing. *
NO
TEPlug-in hybrid #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. Re
quirements:
R The engine has an oil dipstic k.If not, the
engine oil le vel can be checked only with the
on-board computer (/ page 383) .
Depending on the engine, the oil dipstick may be
ins talled in the engine compartment in dif fere nt
locations.
The waiting time before checking the oil le vel
when the engine is at normal operating temp era‐
ture is five minutes. 382
Maintenance and care

#
Park theve hicle on a le vel sur face. #
Pull oil dipstick 1out and wipe off. #
Slowly slide oil dipstick 1into the guide
tube tothestop, and pull it out again af ter
about thre e seconds.
R Oil le vel is cor rect: oil le vel is between 2
and 3.
R Oil le velto o low: oil le vel is at 3or
belo w. R
Oil le velto o high: oil le vel is abo ve2 . #
Ifth e oil le vel is too lo w,top up with 1 litre of
engine oil. #
Ifth e oil le vel is too high, drain off excess
engine oil. Consult a qualified specialist
wo rkshop.
Checking the engine oil le vel using the on-
board compu ter
Re quirements:
R The engine has an oil le vel sensor. If not, the
engine oil le vel can be checked only with the
oil dipstick (/ page 382).
R The engine has been warmed up.
R The vehicle is par ked on a le vel sur face.
R The engine is running at idle speed.
R The bonnet is closed.
The engine oil le vel is de term ined during driving.
De term ining the engine oil le vel can take up to
30 minutes with a normal driving style and even
longer with an active driving style. On-board computer:
4 Service 5
Engine oil level
One of thefo llowing messages will appear on
th e multifunction display:
R Engine oil level Measuring now : measure‐
ment of the oil le vel is not yet possible. #
Repeat there qu est af ter a maximum of
30 minutes' driving.
R Engine oil level OK andthe bar display for
indicating the oil le vel on the multifunction
display is green and is between "min" and
"max": the oil le vel is cor rect.
R Engine oil level Add 1.0 l andthe bar display
fo r indicating the oil le vel on the multifunc‐
tion display is orange and is below "min": #
Add 1 l of engine oil.
R Reduce engine oil level andthe bar display
fo r indicating the oil le vel on the multifunc‐
tion display is orange and is abo ve"max": Main
tenance and care 383

Display messages
Possible causes/consequences and M MSolutions #
Visit or consult a qualified specialist workshop immediatel y.Ù
Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning. Steering capability is significant lyimpaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
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. Active bonnet malfunction
See Owner's Manual
*T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop.
C *A
t least one door is open. #
Close all doors.
? *T
he bonnet is open. &
WARNING Risk of accident due todriving with the bonn etunlo cked
The bonn etmay open and block your vie w. 464
Display messages and warning/indicator lamps

Drive program display............................
173
Drive programs...................................... 172
DY NA MIC SELECT switch...................... 172
Engaging drive position.......................... 176
Engaging neutral.................................... 175
Engaging pa rkposition.......................... 176
Engaging reve rsege ar........................... 175
Kickdown............................................... 178
Manual gear changing.......................... .177
St eering wheel gearshift paddles...........1 77
Tr ansmission position displa y................ 174
Tr ansmission position s..........................174
Au tomatic transmission (problem)
see Transmission (problem)
Axle load Perm issible............................................ 435
Tr ailer operation.................................... 449B
Bag hook..................................................... 11 9
Ball neck Folding out/in....................................... 24 4
BA S (Brake Assist Sy stem)....................... 194Battery
Key.......................................................... 75
Re mo tecontrol (s tationary heater)........ 15 8
Battery see Battery (vehicle)
Battery (vehicle) Charging................................................ 406
Charging (Remo teOnline)...................... 16 3
No tes....................................................4 02
No tes (s tarting assis tance and
ch arging)............................................... 404
Re placing.............................................. 408
St arting assis tance................................ 406
Belt see Seat belt
Bic ycle rack
Load capacity........................................ 449
Tr ailer operation.................................... 24 8
Blind Spot Assi st
Ac tivating/deactivating......................... 222
Fu nction................................................. 219
Sy stem limitations................................. 219
Blo wer
see Climate control BlueTEC
see AdBlue ®
Blue tooth ®
Information............................................ 282
Setting up an Internet connection.........3 48
Switching on/off.................................. .282
Switching profile (DUN/PAN)................ 348
Blue tooth ®
audio
Ac tivating.............................................. 363
De-authorising (de-regis tering) the
device.................................................... 364
Information............................................ 361
Overview............................................... 362
Sear ching for a track............................. 364
Sear ching for and auth orisingthe
device.................................................... 362
Selecting a media pla yer....................... 363
Switching device via NFC...................... 364
Bonnet Resetting (active bonnet)....................... 379
Boot lid see Tailgate
Brake Assist Sy stem
see BAS (Brake Assi stSystem) Index
523

Ý
Please wait 48 V battery charg‐
ing ........................................................ .494
_ Rear left seat backrest not
loc ked (Example)................................... 465
h Rectify tyre pressure.................... 497
Ø Refill Ad Blue See Owne r’s
Manual.................................................. 499
! Release parking brake ..................474
¸ Replace air cleaner ...................... 468
Á Replace key.................................. 455
8 Reser vefuel le vel......................... 468
6 Restra int sys. malfunction Con‐
sult workshop........................................ 452
# See Owner's Manual....................4 93
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ...... 463
Ù Steering malfunction Stop
immediately See Owner's Manual ......... 464
# Stop vehicle Lea veengine run‐
ning ....................................................... 494 #
Stop vehicle See Owner's Man‐
ual......................................................... 493
É Stop vehicle Vehicle too low......... 485
ç suspended.................................... 478
: Switch off lights ........................... 458
: Switch on headlamps................... 458
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 499
+ Top up coolant See Owner ’s
Manual.................................................. 466
¥ Top up washer fluid ...................... 466
! Turn on the ignition torelease
th e parking brake................................... 474
d Vehicle is operational Switch
off ignition before exiting..................... .462
É Vehicle rising Please wait............ .486
É Vehicle rising................................4 86
h Warning tyre defect..................... .497
h Wheel sensor(s) missing .............. 496Ø
XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ 500
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual ...........482
Ac tive Blind Spot Assi stinope rative ...... 482
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual .................................................. 483
Ac tive bonnet malfunction See Own‐
er's Manual........................................... 464
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ........ 490
Ac tive Brake Assi stFunctions limited
See Owner's Manual.............................. 491
Ac tive Dis tance Assi stavailable again ...4 79
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual ...........478
Ac tive Dis tance Assi stinope rative ......... 478 530
Index

EBD (Electronic Brake
forc e Distribu‐
tion)
Function/no tes..................................... 19 6
ECO Assist Function/no tes...................................... 171
ECO display Function................................................ 17 0
ECO start/s top function
Au tomatic engine start.......................... 16 8
Au tomatic engine stop...........................1 68
Operation.............................................. 16 8
Switching off/on................................... 17 0
Electric pa rking brake
Applying automaticall y.......................... 188
App lying or releasing manuall y.............. 19 0
Emergency braking................................ 19 0
Re leasing automaticall y......................... 189
Electrical fuses see Fuses
Electromagnetic compatibility Declaration of conformity........................ 25
Electronic Stability Prog ram
see ESP ®
(Electronic Stability Prog ram) Emer
gency
Fire extinguisher.................................... 395
Fir st-aid kit (so ftsided).........................3 95
Overview of the help functions................ 18
Re moving thewa rning triangle.............. 394
Saf etyve st............................................. 394
Setting up thewa rning triangle............. 395
Emer gency braking ................................... 19 0
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency engine start............................ 413
Emer gency key
Inserting/removing................................. 74
Locking a door........................................ 79
Un locking a door..................................... 79
Un locking theta ilgate............................ .85
Emer gency operation mode
St arting theve hicle...............................1 63
Emer gency spare wheel
No tes..................................................... 431
ENERGIZING COMFORT Overview of programmes.......................2 91
St arting the programme........................ 292 Engine
ECO start/ stop function........................ 16 8
Engine number...................................... 435
St arting (eme rgency operation mode)...1 63
St arting (Remo teOnline).......................1 64
St arting (s tart/s top button).................. 16 2
St arting assis tance................................ 406
Switching off (s tart/s top button).......... 185
Engine bonnet Function (active bonnet)........................ 379
Opening/closing................................... 380
Engine data Displaying..............................................1 74
Engine electronics Notes....................................................4 33
Engine number......................................... .435
Engine oil Additives...............................................4 43
Capacity................................................ 444
Checking the oil le vel using the oil
dipstick................................................. 382
Checking the oil le vel using the on-
board computer..................................... 383
MB-Fr eigabe or MB-Appr oval................ .444 534
Index