2018 MERCEDES-BENZ C-CLASS SALOON sensor

0007
Obser vethe instructions in the
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1. Ha
ve the coolant regularly replaced at a qualified
specialist workshop.
The proportion of cor rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
R a minimum of 50% (antifreeze pr otection
down toappr oximately -37 °C)
R a maximum of 55% (antifreeze pr otection
down to-45 °C) Note
s on windscreen washer fluid Obser
vethe no tes on operating fluids
(0013 page475). 000A
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. 0007
Make sure that no windsc reen washer
concentrate spills out next tothefiller
opening. 000E
NO
TEDama getotheex terior lighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damage the plastic sur face of theex terior
lighting. 0007
Only use windscreen washer fluids
which are also suitable for use on plas‐
tic sur faces, e.g. MB SummerFit or MB
Wi nterFit. 000E
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids 0007
Do not mix MB SummerFit and MB Win‐
te rFit with other windscreen washer flu‐
ids. Do not use distilled or de-ionised
water asthefill
le ve l sensor may be triggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point: e.g. MB SummerFit
R Below freezing point: e.g. MB WinterFit
Fo rth e cor rect mixing ratio, referto the informa‐
tion on the antif reeze conta iner.
Mix thewa sher fluid with the windscreen washer
fl uid all year round. Ve
hicle data Ve
hicle dimensions The heights speci
fied may vary as a result of the
fo llowing factors:
R tyres
R load
R condition of the suspension
R optional equipment 484
Tech nical da ta

Display messages
Possible causes/consequences and 0050
0050Solutions
004D Check brake fluid level *T
here is insuf ficient brake fluid in the brake fluid reser voir. 000A
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. 0007
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. 0007
Consult a qualified specialist workshop. 0007
Do not top up the brake fluid. 0007
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. 0007
Do not top up the brake fluid. 0007
Consult a qualified specialist workshop.
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of the sensors
R heavy rain or snow
R extended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable. 496
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
In order toadjust theve hicle le vel during trailer operation, you must not drive at speeds greater than 30 km/h.
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (0013 page 256). 0007
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
or 0007
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine. 0007
If necessar y,clean there ar bumper. If the bumper is extreme lydirty, the sensors in the bumper may be mal‐
functioning. Active Steering Assist inop-
erative
*A
ctive Steering Assist is malfunctioning. Active Dis tance Assi stDISTRONIC remains available. 0007
Consult a qualified specialist workshop.
00CC Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle is raised tothe selected vehicle le vel. 0007
Wait until the display message disappears before pulling away. Displ
aymessa ges and warning/indicator lamps 505

Display messages
Possible causes/consequences and 0050
0050Solutions
00B6 Reserve fuel level *T
he fuel supply has dropped into there ser verange. 0007
Refuel. Engine oil
Display messages
Possible causes/consequences and 0050
0050Solutions
00B3 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. 0007
Consult a qualified specialist workshop.
00B2 Engine oil level Reduce oil
level *D
isplay message only for cer tain engines:
The engine oil le vel is too high.
000E NO
TEEngine dama gecaused bydriving with excess engine oil 0007
Avoid long journe yswith excess engine oil. 0007
Consult a qualified specialist workshop immediately and ha vethe engine oil siphoned off. Display messages and
warning/indicator lamps 519

Display messages
Possible causes/consequences and 0050
0050Solutions
Rectify tyre pressure 0007
When the tyre pressure is cor rect, restart the tyre pressure monitoring sy stem (0013 page 452).
0077 Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
re cei ved. The tyre pressure monitoring sy stem is temp orarily una vailable. 0007
Drive on.
The tyre pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
0077
Wheel sensor(s) missing *T
he tyre pressure sensor signal is missing from one or more tyre(s). The pressure of the af fected tyre is not dis‐
pl ay ed. 0007
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop.
0077 Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. 0007
Fit wheels with suitable tyre pressure sensors.
0077 *T
he tyre pressure monitoring sy stem is faulty. Display messages and
warning/indicator lamps 531

Display messages
Possible causes/consequences and 0050
0050Solutions
0049 Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. 0007
Turn the light switch tothe0058 position.
0049 Switch on headlamps *Y
ou are driving without lo w-beam headlamps. 0007
Turn the light switch tothe0058 or0058 position.
0049
Automatic driving lights
inoperative *T
he light sensor is faulty. 0007
Consult a qualified specialist workshop.
0049 Left dipped beam (Example)*T
he cor responding light source is defective. 0007
Drive on carefully. 0007
Consult a qualified specialist workshop immediatel y.
or 0007
Check whe ther you are permit tedto replace the light source yourself (0013 page145). 542
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions 0007
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need not
be checked.
003D Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
There is a fault in the electrics. 0007
Obser vethe messages on the multifunction displa y.
00B6
Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange. 0007
Refuel.
00AC
Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. 554
Displaymessa ges and warning/indicator lamps

Calls
.......................................................... 353
Ac cepting ............................................ 353
Ac tivating functions du ring a call ........ 353
Calls wi thseveral participants ............ .353
Declining ............................................. 353
Ending a call ........................................ 353
Incoming call during an existing call .... 354
Making ................................................ 353
Vi ath eove rhead control panel
(Mercedes me connect) ......................3 65
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ........................................4 15
Care .......................................................... 422
Air-water duct ...................................... 414
AIR PANEL ............................................ 420
Car wash ..............................................4 15
Carpet ................................................ .422
Decorative foil ...................................... 41 8Displ
ay................................................ 422
EAS Y-PA CK boot box ...........................4 22
Exterior lighting ................................... 420
High-p ressure cleaner .......................... 41 5
Matt finish ............................................ 417
Pa int wo rk ............................................. 417
Plastic trim .......................................... 422
Re alwo od/trim elements ...................4 22
Re versing camera ................................ 420
Ro of lining ...........................................4 22
Seat belt .............................................. 422
Seat co ver ........................................... 422
Sensors ............................................... 420
Ta ilpipes .............................................. 420
Tr ailer hit ch......................................... 420
Wa shing byhand ..................................4 16
Wheels/rims ....................................... 420
Wi ndo ws .............................................. 420
Wi per blades .......................................4 20
Carpet (Care) .......................................... .422
Changing bulbs ........................................ 14 5
Dipped beam ....................................... 14 6
Fitting/removing co ver (front wheel
ar ch ) .................................................... 14 6
Main beam .......................................... 14 6No
tes ................................................... 14 5
Opening/closing the side trim pan‐
els ........................................................ 147
Overview ............................................. 14 5
Re versing lights .................................. .147
Tu rn signal light (front) ........................ 14 6
Tu rn signal lights (rear) ........................ 147
Changing gears ........................................ 183
Manually ..............................................1 83
Changing hub caps ................................. 463
Changing the lights
Driving abroad (symm etrical dipped
beam) .................................................. 13 5
Cha rging
Bat tery (vehicle) .................................. 437
Chassis Damping characteristics ...................... 232
DY NA MIC BODY CONTROL .................. 232
Child saf ety lock
Ac tivating/deactivating (multimedia
sy stem) ................................................ 312
Re ar door .............................................. 70
Re ar side wind ows................................. 71 Index
565