check engine MERCEDES-BENZ E-CLASS CABRIOLET 2017 Owner's Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra 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 inju ryor fata 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 seat belt tensioner or airbag, forex ample. #
Have 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. #
Consult a qualified specialist workshop immediatel y.Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp lights up af terst arting the engine.
In addition, an acoustic warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt .
If yo u ha veplaced objects on the front passenger seat, thewa rning lamp may remain lit. 47 0
Displaymessa ges and warning/indicator lamps

Engine
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
; Engine diagnosis warning
lamp The
yellow engine diagnosis warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emission limit values may be exceeded and the engine may be running in emergency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
Ve hicles with a diesel engine: the fuel tank has been run dr y. #
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.
# Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Obser vethe messages in the multifunction displa y.
8
Fu elreser vewarning lamp The
yellow fuel reser ve wa rning lamp is lit while the engine is running.
The fuel le vel has dropped into there ser verange. #
Refuel. 474
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
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. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. 476
Displaymessa ges and warning/indicator lamps

Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...4 26
ÂChange key bat teries .................. 446
Ø Check AdBlue See Owne r’s
Manual ................................................ 438
4Check eng. oil le v.when next
re fuelling ............................................. 435
jChe cktrailer hitch lo ck............... 449
h Check tyre(s) .............................. .442
!Clean the fuel filter .................... .438
J Close boot sepa rator .................. 460
ÉCompressor is cooling ................ 423
K Convertible Top Operation pos‐
sible to60 km/h ................................. 459
?Coolant Stop vehicle Switch
engine off ............................................ 432
Cruise contro l and Limiter inope ra‐
tive ...................................................... 430
Cruise control inope rative ................... 430
Cruise control off ................................ 430 Dis
tance Pilot available again .............. 428
Dis tance Pilot cur rently una vailable
See Owner's Manual ...........................429
Dis tance Pilot inope rative .................... 429
È .................................................... 430
ØEng. start not possible in XXX
km ...................................................... .439
ØEng. start not possible ................ 439
5Engine oil le vel cannot be
measured ............................................ 437
4Engine oil le velRe duce oil le vel...4 36
4Engine oil le velSt op vehicle
Switch engine off ................................ 435
4Engine oil pressure Stop Switch
off engine ............................................ 437
_Example: Front left seat back‐
re st not lo cked ................................... 457
bExample: Left dipped beam ........ 460
6Example: Left windowbag mal‐
function Consult workshop ................. 420 Example:
Parking Pilot Parking can‐
celled ................................................ .427
_ Example: Rear left seat back‐
re st not lo cked ................................... 457
Fa ult Drive at max. 80 km/h ...............423
bIntelligent Light Sy stem inoper‐
ative ..................................................... 461
ÂKe y not de tected (red displ ay
messa ge).............................................4 47
 Key not de tected (white displ ay
messa ge).............................................4 46
Let fresh air into theve hicle interior!
Air conditioning malf. Visit workshop .. 453
Limiter inoperative .............................. 430
Limiter passive .................................... 429
É Lowe ring ..................................... 421
A Malfunction Consult workshop ... 458
bMalfunction See Owner's Man‐
ual .......................................................4 61
ð Maximum speed exceeded ..........4 31 488
Index

ECO display
Function ............................................... 147
Re setting ............................................. 231
ECO start/s top function ................. 146, 147
Au tomatic engine start ........................ 14 6
Au tomatic engine stop .........................1 46
Operation ............................................ 14 6
Switching off/on ................................. 147
Electric pa rking brake .................... .164,16 5
App lying automatically ........................ 16 4
App lying or releasing manually ............ 16 5
Emergency braking .............................. 16 5
Re leasing automatically ...................... .164
Electrical fuses see Fuses
Electromagnetic compatibility Declaration of conformity ......................21
Electronic Stability Prog ram
see ESP ®
(Electronic Stability Prog ram)
Electronics ............................................... 404
Emer gency
Assis tance overview .............................. 15
Fire extinguisher ................................. .364 Fir
st-aid kit (so ftsided) ....................... 364
Re moving thewa rning triangle ............ 363
Saf etyve st .......................................... 363
Setting up thewa rning triangle .......... .364
Emer gency braking ................................. 16 5
Emer gency call sy stem
see Mercedes-Benz emer gency call sy stem
Emer gency engine start ......................... 380
Emer gency key element
Inserting/removing ................................ 61
Locking a door ....................................... 68
Un locking a door .................................. .68
Emer gency operation mode
St arting theve hicle ............................. 14 3
Emer gency spare wheel .........................4 02
No tes .................................................. 402
Re moving ............................................ 403
Energ y consum ption
Ke y ........................................................ 60
Engine ECO start/ stop function ......................1 46
Engine number ................................... .406 St
arting (eme rgency operation
mode) .................................................. 14 3
St arting (mobile phone) ...................... .142
St arting (s tart/s top button) .................1 42
St arting assis tance .............................. 373
Switching off (s tart/s top button) ........ 15 8
Engine bonnet Function (active bonnet) ...................... 346
Opening/closing ................................. 347
Re setting (active bonnet) .................... 346
Engine data Displaying ............................................ 14 9
Engine electronics Notes .................................................. 404
Engine number ........................................4 06
Engine oil ................................................. 350
Ad ditives .............................................. 412
Checking the oil le vel using the oil
dipstick ............................................... 349
Checking the oil le vel using the on-
board computer ................................... 349
Filling capacity .....................................4 13
MB-F reigabe or MB-Appr oval .............. .413
To pping up ...........................................3 50492
Index