2018 MERCEDES-BENZ E-CLASS CABRIOLET engine

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
0075
Restra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is malfunctioning.0071
WARNING Risk of injury orfata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. This may af fect the Emer gency Tensioning Device or airbag, forex am‐
ple.
00BBHa ve there stra int sy stem checked and repaired immediately at a qualified specialist workshop.
00BBDrive on carefully.
00BBObser vethe messages in the multifunction displa y.
00BBVisit a qualified specialist workshop immediatel y.
452
Display messages and warning/indicator lamps

Seat belts
Warning/indicator lamp
Possible causes/consequences and 0050Solutions
0076
Seat beltwarning lamp
lights up Af
terth e engine is star ted, there d seat belt warning lamp lights up for six seconds.
In addition, an acou stic wa rning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts.00BBFa sten your seat belt.
If yo u ha veplaced objects on the front passenger seat, the seat belt warning lamp may remain lit.
0076
Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermitte ntwa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion.00BBFa sten your seat belt.
There are objects on the front passenger seat.
00BBRe mo vethe objects from the front passenger seat.
Driving sy stems
Wa rning/indicator lamp
Possible causes/consequences and 0050Solutions
00CC
Suspensionwarning lamp The
yellow AIR BODY CONTROL warning lamp is on.
AIR BODY CONTROL is faulty.00BBObser vethe messages on the multifunction displa y.
Displaymessage s andwarning/indicator lamps 453

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00BA
Distance warning lamp The
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.00BBBe prepared tobrake immediatel y.
00BBIncreasethe dis tance.
Ac tive Brake Assi st.
Ve hicle
Wa rning/indicator lamp
Possible causes/consequences and 0050Solutions
00CC
Powe rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po werst eering assis tance or thesteering itself is malfunctioning.0071
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf etyis jeopardized.
00BBPull 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.
00BBConsult a qualified specialist workshop.
00BBObser vethe messages in the multifunction displa y.
454
Display messages and warning/indicator lamps

Engine
Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00B9
Engine diagnosiswarning
lamp The
yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurr ed inthe engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow Check Engine warning lamp lights up.
00BBHa ve theve hicle checked as soon as possible at a qualified specialist workshop.
003D
Electrical malfunction warn‐
ing lamp The
red electri calfault warning lamp is lit.
There is a fault inthe electrics.00BBObser vethe messages in the multifunction displa y.
00B6
Fuelreser vewarning lamp The
yellow fuel reser ve wa rning lamp lights up while driving.
There has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is leaking.00BBClose the fuel filler cap.
If th e fuel filler cap has already been closed cor rectly:
00BBVisit a qualified specialist workshop.
Display messages and warning/indicator lamps 455

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00B6
Fuelreser 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.00BBRe fuel.
456
Display message s andwarning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00AC
Coolantwarning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:RThe temp erature sensor is malfunctioning
RCoolant le velto o low
RThe air supply tothera diator is obstructed
RThe radiator fan is de fective
If th ere is an additional warning tone, the coolant temp erature has exceeded the maximum permissible temp erature.
0071
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could come
into contact with hot gases or other escaping operating fluids.
00BBBefore opening the hood, allow the engine tocool down.
00BBIntheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
00BBPull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances.
00BBObser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale:
00BBConsult a qualified specialist workshop.
Display messages and warning/indicator lamps 457

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
Otherwise:
00BBLea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down.
00BBCheck the coolant le vel.
00BBMake sure that the air supply tothera diator is not obstructed.
00BBAv oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below there d area.
458
Display messages and warning/indicator lamps

Function ............................................... 167
Sy stem limitations .............................. .167
Ad aptive cruise control
see Active Dis tance Assist DISTRONIC
Ad aptive Highbeam Assist
Fu nction ............................................... 114
Switching on/off .................................. 115
Ad ditive s.................................................. 389
Engine oil ............................................ 389
Fu el ..................................................... 389
Ad ditive s (engine oil)
see Additives
Ad ditive s (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Burmes ter
®sur round sound sy stem ... .313
Ad justing the sound focus
Burmes ter
®sur round sound sy stem ... .313
ADS PL USdamp ing sy stem
see AIR BODY CONTROL Af
ter-sales service center
see ASS YST PLUS
Air bag ........................................................ 38
Ac tivation .............................................. 32
Fr ont air bag .......................................... 38
Head air bag .......................................... 38
Ins tallation locations ............................ .38
Knee air bag .......................................... 38
Overview ............................................... 38
Pr otection ............................................. .39
Re duced pr otection .............................. .40
Sid e i
mpact air bag ............................... 38
AIR BODY CONT ROL................................ .171
Setting ................................................. 173
Suspension .......................................... 171
Air conditioning sy stem
see Climate control
Air distribution ........................................ .124
Air freshener sy stem
see Frag rance sy stem
Air pressure see Tire pressure Air suspension
see AIR BODY CONTROL
Air vents ................................................... 128
Ad justing (front) .................................. 128
Ad justing (rear passenger compart‐
ment) ................................................... 129
Ad justing the AIRSCARF vents ............. 130
Glo vebox ............................................ .129
Air-recirculation mode ............................127
AIR CAP
Ac tivating .............................................. 79
Deactivating .......................................... 79
Ai rflow ...................................................... 124
AIRS CARF
Ac tivating/deactivating ......................... 94
AIRS CARF vents
Setting ................................................ .130
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
Alternative route
see Route
462
Index