2020 MERCEDES-BENZ C-CLASS ESTATE check engine light

#
Toswitch on the po wer supp ly:press but‐
to n1 once.
Yo u can activate the windscreen wiper, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
R You open the driver's door.
R You press but ton1 twice more. #
Toswitch on the ignition: press button 1
twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
R You do not start theve hicle within
15 minutes and the transmission is in posi‐
tion jorthe electric parking brake is
applied.
R You press but ton1 once. St
arting theve hicle St
arting theve hicle with thest art/s top but‐
ton &
DANG ER Risk of death caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vethe engine or, if present,
th e auxiliary heating running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk offire due toflammable
material in the engine compartment or
th eex haust sy stem
Flammable materials may ignite. #
Therefore, check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem. Re
quirements:
R theke y is in theve hicle and is recognised. #
Shift the transmission toposition jori. #
Depress the brake pedal and press button
1 once. #
Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
once. #
Ifth eve hicle still does not start and the dis‐
play message Place the key in the marked
space See Owner's Manual also appears in
th e multifunction display: start theve hicle
with theke y in the mar ked space (emer gency
operation mode) (/ page 163).
% You can swit choff the engine while driving.
By pressing button 1for about thre e sec‐
onds or bypressing button 1thre e times
within thre e seconds. Be sure toobser vethe
saf ety no tes under "Driving tips"
(/ page 166). 16 2
Driving and pa rking

#
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

&
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
There is a danger of hydrogen gas igniting
when charging the battery if there is a short
circuit or spar ksstart toform. #
Make sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts. #
Never place me tal objects or tools on a
batter y. #
The described order of the battery
clamps must be obser ved when con‐
necting and disconnecting the batter y. #
When giving starting assis tance, al ways
make sure that you on lyconnect bat‐
te ry term inals with identical polarity. #
During starting assis tance, you must
obse rveth e described order for con‐
necting and disconnecting the jump
lead. #
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. &
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture. #
Avoid fire , naked flames, creating
spar ksand smoking. #
Make sure there is suf ficient ventila‐
tion. #
Do not lean over a batter y. &
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, bat tery gas can be released. #
Alw ays allow a battery tothaw before
ch arging it or per form ing starting assis‐
ta nce. If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
Plug-in hybrid: be sure toobser vethe no tes in
th e Supplement. You could otherwise failto rec‐
ognise dangers.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attempt sto start the engine Nume
rous or extended attempt sto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extended attem pts
to start the engine. Breakdown assis
tance 405

Occupant saf
ety Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
6 Re stra int sy stem warning
lamp *T
he redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is malfunctioning (/ page 38). &
WARNING Risk of injury duetomalfunctions in there stra int sy stem
Components in there stra int sy stem may be activated unintentionally or not deploy as intended in an accident. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Notethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y.
ü
Seat belt warning lamp *T
he red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
or
The red seat belt warning lamp lights up once the engine has star ted.
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp flashes and an intermit tent wa rning tone sounds:
The driver or front passenger has not fastened his or her seat belt while theve hicle is in motion. #
Fasten your seat belt (/ page41).
There are objects on the front passenger seat. 506
Display messages and warning/indicator lamps

Contacts
Calling up.............................................. 328
Deleting................................................ .329
Downloading (from mobile phone)......... 327
Importing.............................................. 328
Importing (o verview)............................. 328
Information........................................... .327
Making a call......................................... 329
Na me form at......................................... 328
Options................................................ .329
St oring..................................................3 29
Controller Operating.............................................. 273
Con venience closing ................................... 88
Con venience opening ..................................88
Coolant (engine) Check le vel............................................ 385
No tes....................................................4 45
Cooling see Clima tecontrol
Co pyright..................................................... 36
Cornering light ...........................................1 32
Cross Traf fic Alert..................................... 24 3Crosswind Assist
Function/no tes..................................... 19 6
Cruise control Activating.............................................. 202
Buttons.................................................. 202
Calling up a spee d................................. 202
Deactivating.......................................... 202
Fu nction................................................ 200
Re quirements........................................ 202
Selecting.............................................. .202
Setting a speed..................................... 202
St oring a speed.....................................2 02
Sy stem limitations................................. 200 D
Dashboard see Cockpit
Data acquisition Vehicle.................................................... 33
Data import/export Function/no tes..................................... 286
Importing/exporting............................. 287
Data pr otection rights
Data storage............................................ 36 Data
storage
Data pr otection rights............................. 36
Electro nic control units........................... 33
Online service s........................................ 35
Ve hicle.................................................... 33
Date Setting the time and date automati‐
cally....................................................... 281
Deactivating the alarm (A TA )...................... 94
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility.................25
Jack......................................................... 28
Specific absor ption rate.......................... 25
TIREFIT kit............................................... 29
Wi reless vehicle components.................. 25
Decorative foil (cleaning instructions) .... 389
DeNOx agent see AdBlue ®
De stination
Editing intermediate destinations......... .298
Editing the pr evious destinations.......... 309 Index
527

é
ATTENTION ASSIS T:Take a
break!....................................................4 76
: Automatic driving lights inoper‐
ative...................................................... 457
Á Change key bat teries ...................4 55
J Checkbrake fluid le vel................. 475
# Check brake pads See Owner's
Manual .................................................. 475
5 Check engine oil le vel when
next refuelling....................................... 502
ï Checktrailer hitch lo ck................ 462
h Check tyre(s)................................ 496
! Clean the fuel filter ...................... 468
ÿ Coolant Stop vehicle Switch
engine off..............................................4 67
! currently una vailable See Own‐
er's Manual .......................................... .487
÷ currently una vailable See Own‐
er's Manual .......................................... .488 5
Engine oil le vel cannot be
measured .............................................. 504
5 Engine oil le velRe duce oil le vel.... 503
5 Engine oil le velSt op vehicle
Switch engine off.................................. 503
5 Engine oil pressure Stop
Switch off engine.................................. 504
ä Fault Drive at max. 80 km/h........ 484
6 Front left malfunction Consult
wo rkshop (e xample).............................. 452
& inoperative Battery low................. 461
& inoperative Refuel vehicle .............4 61
& inoperative See Owner's Man....... 461
! inoperative See Owner's Man‐
ual......................................................... 488
÷ inoperative See Owner's Man‐
ual......................................................... 489
T inoperative See Owner's Man‐
ual......................................................... 490
G Inoperati ve................................... 492 :
Intelligent Light Sy stem inoper‐
ative...................................................... 458
Á Key not de tected (red displ ay
messa ge)............................................... 456
Á Key not de tected (white display
messa ge)............................................... 455
: Left dipped beam (e xamp le)........ .457
6 Left windowbag malfunction
Consult workshop (e xample)................ .452
¢ Lowe ring..................................... .485
: Malfunction See Owner's Man‐
ual......................................................... 457
ð Maximum speed exceeded ........... 479
Ø ..................................................... 499
ç Off................................................ 478
ë Off................................................ 476
! Parking brake See Owner's
Manual .................................................. .471
É Please reduce speed .................... 486 Index
529