2020 MERCEDES-BENZ C-CLASS ESTATE warning light

Display messages
Possible causes/consequences and M MSolutions
5 Engine oil pressure Stop
Switch off engine *D
isplay message only for cer tain engines:
The oil pressure is too lo w.
* NO
TEEngine damage causedbydriving 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. Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and wa
rning lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y.504
Display messages and warning/indicator lamps

Instrument display (standard)
Wi
descreen cock pit instrument displ ay Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown.
Indicator and warning lamps:
6 Re
stra int sy stem (/ page 506)
ü Seat belt (/
page 506)
ï Trailer hit ch (/page 507)
Ù Powe rst eering (/ page 507)
ÿ Coolanttemp erature (/ page 508)
; Engine diagnostics (/
page 508)
% Preglow
# Elect
rical fault (/ page 508)
8 Re
ser vefuel with fuel filler flap loca‐
tion indicator (/ page 508)
! Elect
ric pa rking brake (red)
(/ page 511)
! Electric pa
rking brake (yellow)
(/ page 511)
J Brakes (yellow
) (/page 511)
J Brakes (red) (/
page 511)
L Distance warning (/ page513) ä
AIRMATIC (/ page513)
ä DYNA MIC BODY CONTROL
(/ page 513)
! ABS (/
page514)
÷ ESP®
(/ page 514)
å ESP®
OFF (/ page 514)
h Ty
re pressure monitoring sy stem
(/ page 517)
T St
anding lights (/ page128)
L Low beam (/
page128)
K High beam (/
page130)
#! Tu
rn signal lights (/ page130)
R Re
ar fog light (/ page128) Displ
aymessa ges and warning/indicator lamps 505

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

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
Remo vethe objects from the front passenger seat.
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 reminds the driver and front passenger tofasten their seat belts. #
Fasten your seat belt (/ page41).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
Ù Po we rst eering warning
lamp (red) *T
he red po werst eering sy stem warning lamp is lit while the engine is running.
The po wer assi stance or thesteering itself is malfunctioning. &
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. #
Notethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 507

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
8 Fu elreser ve wa rning lamp
lights up *T
he yellow fuel reser vewarning lamp lights up while the engine is running.
The fuel supply has dropped into there ser verange. #
Refuel. Brakes
Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
! Elect ric pa rking brake indi‐
cator lamp (red)
!
The elect ric pa rking brake
(yellow) indicator lamp *T
he red elect ric pa rking brake indicator lamp flashes or is lit.
The yellow elect ric pa rking brake indicator lamp also lights up in theev ent of a malfunction. #
Notethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 511

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
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. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
L Wa rning lamp for dis tance
wa rning function *T
he red dis tancewarning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance. Display messa
ges and warning/indicator lamps 513

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

Fr
ont wheel ar ch
Fitting/removing the co ver.................... 13 9
Fr ont wheel ar chcover
Fitting/removing.................................. .139
Fu el
Ad ditives...............................................4 40
Diesel.................................................... 440
E1 0........................................................ 439
Fu elreser ve........................................... 441
Low outside temp eratures.................... 440
Pe trol..................................................... 439
Quality (diesel)...................................... 440
Quality (petrol)...................................... 439
Re fuelling.............................................. 17 9
Sulphur content..................................... 439
Ta nk content.......................................... 441
Fu nction seat
see Door cont rol panel
Fu ses
Before replacing a fuse.......................... 413
Fu se assignment diagram...................... 413
Fu se box in the engine compartmen t..... 414
Fu se box in the front passenger foot‐
we ll....................................................... .415 Fu
se box in the load compartment........ 416
Fu se box on the dashboard....................4 15
No tes..................................................... 413 G
Garage door opener Clearing the memory.............................1 88
Opening or closing the door..................1 88
Programming buttons............................ 186
Re solving problems...............................1 88
Synchronising thero lling code............... 187
Gearshift recommendation..................... .177
Genera l operating permit number (EU)... 435
Genuine parts............................................. .22
Genuine wood (Care) ................................ .391
Glide mode................................................. 178 H
Handbrake see Electric parking brake
Handling characteristics (unusual).......... 417
HANDS-FREE ACCESS ................................ .83Hazard
warning lights.............................. .131
HD prog rammes
see CI+ module
Head restra int
Fr ont (adjusting mechanically)..............1 02
Re ar (adjusting).................................... .103
Re ar (fitting/removing)......................... .103
Head-up display Adjusting display elements (on-board
compu ter)............................................. 255
Ad justing the brightness (on-board
computer).............................................2 55
Fu nction................................................ 254
Menu (on-board compu ter)................... 255
Operating the memory function............ 109
Setting the position (on-board com‐
puter)....................................................2 55
Switching on/of f................................... 255
Headlamp flashing.................................... 13 0
Headlamps see Automatic driving lights
Heating see Climate control 536
Index