check engine MERCEDES-BENZ E-CLASS COUPE 2018 Owner's Guide

Warning/indicator lamp
Possible causes/consequences and MSolutions
6
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.&
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.
#Ha ve there stra int sy stem checked and repaired immediately at a qualified specialist workshop.
#Drive on carefully.
#Obser vethe messages in the multifunction displa y.
#Visit a qualified specialist workshop immediatel y.
438
Display messages and warning/indicator lamps

Engine
Warning/indicator lamp
Possible causes/consequences and MSolutions
;
Engine diagnosiswarning
lamp The
yellow engine diagnosis 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 values may be exceeded and the engine may be running in emergency operation mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow engine diagnosis warning lamp lights up.
#Ha ve theve hicle checked as soon as possible at a qualified specialist workshop.
#
Electrical malfunction warn‐
ing lamp The
red electri cal malfunction warning lamp is lit.
There is a malfunction in the electrics.#Obser vethe messages in the multifunction displa y.
8
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.#Close the fuel filler cap.
#If th e fuel filler cap was already proper lyclosed: consult a qualified specialist workshop.
44 2
Displ aymessage s andwarning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
Otherwise:
#Lea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down.
#Check the coolant le vel .
#Make sure that the air supply tothera diator is not obstructed.
#Av 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 248 °F (120 °C).
Display message s andwarning/indicator lamps 44
5

COMANDTouch App
see COMAND Touch
Comb ination switch
see Turn signal light
Compass .................................................. 263
Computer .................................................2 06
Connection status
Display s ............................................... 282
Overview ............................................. 282
Contacts ................................................... 269
Calling up ............................................ 270
Del eting .............................................. .271
Downloading (from mobile phone) ...... 269
Impo rting ............................................ .270
Information .......................................... 269
Making a call ....................................... 271
Na me form at ...................................... .270
Options ................................................ 271
Saving .................................................. 271
Controller Operating ............................................ 229
Con venience closing feature .................... 72
Con venience opening ................................ 71Coolant (engine)
Checking le vel .................................... .313
Filling capacity .................................... 380
No tes ................................................... 379
Cooling see Climate c
ontrol
Copyright Licenses ................................................ 28
Trademar ks............................................ 28
Co rnering light function ..........................110
Cross Traf fic Alert .................................. .194
Crosswind Assist Function/no tes ................................... 155
Cruise control .......................................... 160
Ac tivating .............................................1 61
Callin g up a speed .. ............................ .161
Deactivating ......................................... 161
Fu nction .............................................. 160
Le ver ....................................................1 61
Prerequisites ........................................1 61
Selecting .............................................. 161
Setting a speed .................................... 161
St oring a speed .................................... 161
Sy stem limits ....................................... 160 Cup holder
................................................ 101
Ins talling/ removing (center console) ... 101
Re ar bench seat ................................... 101
Cup holder see Cup holder
Cus tomer Assi stance Center (C AC)........ .25
Cus tomer Relations Department .............25
D
Dashboa rd
see Cockpit
Dashboard lighting ..................................2 08
Data acquisition Vehicle .................................................. 26
Data import/export Function/no tes .................................... 241
Importing/exporting ............................ 241
PIN pr otection for data export .............2 42
Daytime running lights ........................... .112
Ac tivating/deactivating ........................ 112
Daytim eru nning lights mode
see Daytime running lights
454
Index

Active Lane Keeping Assist Inopera‐
tive ...................................................... 404
Ad aptive Highbeam Assist Camera
Vi ew Restricted See Ope rator's Man‐
ual .......................................................4 29
Ad aptive Highbeam Assist Cur rently
Un available See Operator's Manual .....4 28
Ad aptive Highbeam Assist Inopera‐
tive ...................................................... 428
Air Conditioning Malfunction See
Operator's Manual ...............................422
Apply Brake toShift from 'P' ............... 420
ÀAT TENTION ASSIST Inoperative ... 401
ÀAT TENTION ASSIS T:Take a
Break! .................................................. 401
bAu toLamp Function Inoperati ve
............................................................. 428
Au xilia ryBattery Malfunction .............. 422
Blind Spot Assist Currently Una vaila‐
ble See Opera tor's Manual .................. 405 Blind Spot Assist Inoperative
............... 406
Blind Spot Assist Not Available When
To wing a Trailer See Operator's Man‐
ual ...................................................... .406
$Che ckBrake Fluid Le vel.............. 394
Check Coolant Le vel See Operator's
Manual ................................................ .410
4Check Engine Oil AtNext Refu‐
eling ....................................
.................413
h

Check Tire s ..................................4 15
¥Check Washer Fluid .................... 426
ÉCompressor Is Cooling ................403
?Coolant Too Hot Stop Vehicle
Tu rn Engine Off .................................... 411
Cr uise Control Inoperative ...................4 10
Cruise Control Off ................................ 410
!Cur rently Una vailable See Oper‐
ator's Manual ...................................... 386
÷Cur rently Una vailable See Oper‐
ator's Manual ...................................... 387 Dis
tance Pilot Cu rrent ly Un available
See Operator's Manual ........................ 409
Dis tance Pilot Inoperati ve................... 409
Dis tance Pilot Now Available .............. .408
ÂDon't Forget Your Key.................. 419
ÉDrive More Slowly ....................... 403
Driver's Door Open & Transmission
No t in P Risk of Vehicle Rolling Away .. 420
bExample: Check Left Low
Beam .................................................. 427
6Fr ont Left Malfunction Service
Re quired (Example) ............................ .398
Fr ont Passenger Airbag Disabled See
Operator's Manual ...............................3 99
Fr ont Passenger Airbag Enabled See
Operator's Manual ..............................
.400
8

Fu el Le vel Low ............................ .414
8Gas Cap Loose .............................414
!Inoperative See Operator's
Manual ................................................3 85
456
Index