2018 MERCEDES-BENZ CLS COUPE key battery

Key
Display messages
Possible causes/consequences and M
MSolutions
, Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. #
Make sure that the internet connection is not limited bycer tain mobile phone settings. #
Open the Mercedes me connect http://www.mercedes.me and call up the digital vehicle key service. #
Deactivate the service firs t and then activate it again. #
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect.
Â
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
 Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (→ page 69). Display messages and
warning/indicator lamps 509

Ad
aptive Highbeam Assist Plus inop‐
erative ................................................ .522
¯ AdBlue sy stem fault Engine
st art not possible ................................ 503
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 502
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .502
4Ad d 1 litre engine oil when next
re fuelling ............................................. 499
Apply brake todeselect Park (P)
position ................................................ 514
App lybrake toselect R ........................ 514
À ATTENTION ASSIST inoperative ... 482
ÀAT TENTION ASSIS T:Take a
break! .................................................. 482
bAu tomatic driving lights inoper‐
ative ..................................................... 521
Au xilia rybattery malfunction ...............515Blind Spot Assi
stcur rently una vaila‐
ble See Owner's Manual ...................... 487
Blind Spot Assist inope rative ............... 488
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 88
ÂChange key bat teries .................. 509
JCheck brake fluid le vel................ 476
ï Check trailer hit chlock (white
display message) ................................ .512
h Check tyre(s) .............................. .505
!Clean the fuel filter .................... .500
?Coolant Stop vehicle Switch
engine off ............................................ 493
Cruise contro l and Limiter inope ra‐
tive ...................................................... 492
Cruise control inope rative ................... 492
Cruise control off ................................. 491
!cu rrently unavailable See Own‐
er's Manual ........................................ .466 ÷cur
rently una vailable See Own‐
er's Manual ........................................ .468
5Engine oil le vel cannot be
measured ............................................ 500
4Engine oil le velRe duce oil le vel...4 98
4Engine oil le velSt op vehicle
Switch engine off ................................ 498
4Engine oil pressure Stop Switch
off engine ............................................ 499
Fa ult Drive at max. 80 km/h ...............485
6Fr ont left malfunction Consult
wo rkshop (Example) ............................4 78
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 80
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 79
!inoperative See Owner's Man‐
ual ....................................................... 467
÷inoperative See Owner's Man‐
ual ....................................................... 469 552
Index

ISOFIX
child seat securing sy stem .......... 50
Fitting .................................................... 51
No tes ..................................................... 50
Seats suitable for attaching ................... 59 J
Jack Declaration of conformity ...................... 25
St orage location ..................................4 40
Jump-start connection .............................417
Gene ral no tes ...................................... 41 5
No tes ................................................... 41 5K
Ke y.............................................................. 67
Ac oustic locking verification signal ....... 68
Battery .................................................. 69
Emer gency key ...................................... 69
Energy consum ption .............................. 68
Fe atures ................................................ 67
Ke yring attachment .............................. 69
Overview ................................................ 67
Pa nic alarm ........................................... 68
Problem ................................................. 70 Un
locking setting .................................. 68
Ke y functions
Deactivating .......................................... 68
KEYLESS-GO Locking theve hicle ................................ 73
Problem .................................................74
Un locking setting .................................. 68
Un locking theve hicle ............................73
Kickd own.................................................1 64
Using ................................................... 16 4
Knee airbag ................................................ 39 L
Lamp see In terior lighting
Lamps (instrument display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist
Language .................................................2 95
No tes .................................................. 295 Setting .................................................2
95
LED light see Intelligent Light Sy stem
Le vel control sy stem
see AIR BODY CONTROL
Light switch Overview .............................................1 22
Lighting see Interior lighting
see Lights
Lights ........................................................ 12 2
Ac tive headla mps ................................ 12 5
Ad justing the instrument lighting ........ 258
Ad versewe ather light .......................... 127
Au tomatic driving lights ....................... 12 3
City lighting ........................................ .127
Combination swit ch............................. 124
Corne ring light ..................................... 12 6
Dipped beam ....................................... 12 2
Driving ab road (symm etrical dipped
beam) .................................................. 12 2
Fo g light (extended range) ................... 12 6
Haza rdwa rning lights .......................... 12 5
Headla mpflasher ................................ .124 Index
561