2020 MERCEDES-BENZ CLS COUPE maintenance

Note
s ontech nical data
* NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The
tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the COC documents
(CERTIFIC ATE OF CONFORMITY). These pape rs
are included with theve hicle. On-board electronics
Note
s on tampering with the engine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in valida‐
te d. #
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s onfitting two-w ayradios &
WARNING Risk of accident due to
improper workon two-w ayradios
If two-w ayradios are manipulated or retrofit‐
te d incor rectl y,the electromagnetic radiation
from the two-w ayradios can inter fere with th
eve hicle electronics and jeopardise the
operating saf ety of theve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. &
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u use two- wayra dios in theve hicle
improperly, their electromagnetic radiation
can disrupt theve hicle's electronics. This is
true in thefo llowing situations, in particular:
R The two-w ayradio is not connec tedto an
ex terior aerial.
R The exterior aerial is fitted inco rrectly or
is not a lo w-reflection aerial.
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. Te
ch nical da ta343

ha
ve to to p up AdBlue ®
will also vary. Ha vethe
Ad Blue ®
supply checked at a qualified specialist
wo rkshop before making journe ysoutside of
Europe. Before a longer stay outside of Europe,
consult a qualified specialist workshop.
Ad Blue ®
ra nge and fill le vel
The AdBlue ®
fill le vel and range can be displ ayed
via the on-board computer. The AdBlue ®
ra nge
shown depends strongly on the driving style and
operating conditions. The actual range can
th erefore deviate from thera nge cur rently dis‐
pl ay ed in the on-board computer. The informa‐
tion supplied in the Owner's Manual rega rding
th ere ser vequantity at thefirs t display warning
and on the minimum top-up quantity when the
fuel tank is em pty is also tobe under stood as
guide values. Engine oil
Note
s on engine oil
Obser vethe no tes on operating fluids
(/ page 347). *
NO
TEEngine dama gecaused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forthe
service inter vals. #
Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an presc ribed. #
Do not use additives. #
Have the engine oil rene we d at regular
inter vals. Mercedes-Benz
recommends that you ha vethe
oil change car ried out at a qualified specialist
wo rkshop.
Only use engine oils appr oved byMercedes-
Benz.
Pe trol engines: for cer tain countries, dif fere nt
engine oils can be used in conjunction wi th
re duced maintenance inter vals.
% Further information on dif fere nt engine oils
can be ob tained at a qualified specialist
wo rkshop.
Quality and capacity of engine oil Pe
trol engine sM B-Freigabe or MB-
Appr oval
All models 229.51,229.52,
229.61
229.71* Missing
values werenot available at the time of
going topress. Te
ch nical da ta353

Air
vents
see Air vents
Ai r-conditioning sy stem
see Climate control
Air-recirculation mode ............................14 0
Air-water duct .......................................... 299
Ke eping free ........................................2 99
Airbag ........................................................ .42
Ac tivation .............................................. 37
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42
Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................43
Re duced pr otection ...............................44
Side airbag ............................................ 42
Wi ndow airbag ....................................... 42
Ai rflow
Setting ................................................ .137
Alarm sy stem
see ATA (anti-theft alarm sy stem) All-wheel drive
see 4MATIC
Ambient lighting Setting (multimedia sy stem) ................1 29
Android Auto
see Smartphone integration
Animals Pets in theve hicle ................................. 70
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door lock ...............................74
Immobiliser ........................................... 90
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
see Smartphone integration Assistance sy
stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 292
Battery disconnection pe riods .............2 93
Displ aying the service due date ........... 292
Fu nction/no tes ................................... 292
Re gular maintenance work .................. 292
Special service requ irements .............. 292
ATA (anti-theft ala rmsystem) .................. 90
Deactivating the alarm ........................... 91
Fu nction ................................................ 90
Fu nction of interior pr otection ............... 92
Priming/deactivating interior pr otec‐
tion ........................................................ 92
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 92
To w- aw ay protection function ................91
AT TENTION ASSI ST.......................... 185, 187
Fu nction .............................................. 185
Setting ................................................. 187
Sy stem limitations ...............................1 85
At tention assistant
see ATTENTION ASSIST Index
431

Mo
torw ay mode ................................... 124
Pa rking lights ...................................... .120
Re ar fog light ....................................... 12 0
Re sponsibility for lighting sy stems .......1 20
Setting the dipped beam ..................... 12 8
Setting theex terior lighting switch-
off delay time ...................................... 12 8
St anding lights .................................... .120
Switching the sur round lighting
on/off ................................................ .128
Tu rn signal indicator ............................1 22
Limi ter ...................................................... 188
Ac tivating ............................................ 188
Buttons ................................................ 188
Calling up a speed .............................. .188
Deactivating ........................................ 188
Fu nction .............................................. 188
Pa ssive mode ...................................... 188
Pe rm anent setting .............................. .190
Re quirements ...................................... 188
Selecting ............................................. 188
Setting a speed ................................... 188
St oring a speed ................................... 188
Sy stem limitations ...............................1 88Limiting speed
see Limi ter
LINGU ATRO NIC
Fu nction .............................................. 253
St arting .............................................. .254
Live Traf fic Information
Swit ching the tra ffic information dis‐
play on ................................................ .267
Loading .................................................... .112
Bag hook .............................................. 11 2
No tes ................................................... 106
Ro of luggage rack ................................ 11 4
Ti e-down eyes ...................................... 11 2
Loading guidelines .................................. 106
Loads Securing .............................................. 106
Locking/unlocking Activating/deactivating the auto‐
matic locking feature ............................ .77
Ad ditional door lock ...............................74
Emergency key ...................................... 78
KEYLESS-GO .......................................... 76
Un locking/opening the doors from
th e inside ............................................... 75Low beam
Swit ching on/off ................................ .120
Symmetrical low beam ........................ 12 0
Lu bricant additives
see Additives
Lu ggage
Lu ggage net ......................................... 11 3
Secu ring .............................................. 106
Lu mbar support
see Lumbar support (4-w ay)
Lu mbar support (4-w ay).......................... .94 M
Maintenance see ASS YST PLUS
Malfunction Restra int sy stem .................................... 37
Manoeuvring assistant Activating/deactivating ...................... .234
Cross Traf fic Alert ............................... 234
Drive AwayAssi st................................ 233
Map ........................................................... 266
Displaying online map contents ........... 267 Index
447

Ve
hicle maintenance
see ASS YST PLUS
Ve hicle tool kit ........................................ .310
TIREFIT kit ............................................ 310
To wing eye .......................................... 323
Ve ntilating
Con venience opening ............................ 85
Ve ntilation
see Climate cont rol
Ve nts
see Air vents
VIN ............................................................ 345
Identification plate .............................. 345
Seat ..................................................... 345
Wi ndsc reen ......................................... 345
Vi sion
Demisting windo ws............................. 14 0
Wi ndsc reen heating ............................. 14 2W
Wa rning lamps
see Warning/indicator lamps Wa
rning sy stem
see ATA (anti-theft alarm sy stem)
Wa rning triangle
Re moving ............................................ 306
Setting up ............................................ 307
Wa rning/indicator lamp
! ABSwarning lamp ...................... 424
æ Active Brake Assi stwa rning
lamp .................................................... 423
J Brake sy stem warning lamp
(red) .................................................... 422
J Brake sy stem warning lamp
(yellow) ................................................ 421
ÿ Coolant warning lamp (red) ........ .418
ÿ Coolant warning lamp (yellow) .... 419
! Electric pa rking brake indicator
lamp (red) ............................................ 421
# Electrical fault warning lamp ...... 420
; Engine diagnosis warning lamp .. .419
å ESP®
OFF warning lamp ............ .426
÷ ESP®
wa rning lamp flashes ........ 425 ÷
ESP®
wa rning lamp lights up ...... 425
8 Fuelreser vewarning lamp
lights up .............................................. 420
Ù Powe rst eering warning lamp
(red) .................................................... .416
6 Restra int sy stem warning lamp .. .415
ü Seat belt warning lamp flashes .. .415
ü Seat belt warning lamp lights
up ........................................................ 416
ä Suspension warning lamp (yel‐
low) .................................................... .424
! The electric parking brake (yel‐
low) indicator lamp .............................. 421
ï Trailer tow hit chwarning lamp .... 417
h Tyre pressure monitoring sys‐
te m wa rning lamp flashes .................. .427
h Tyre pressure monitoring sys‐
te m wa rning lamp lights up ................ .427
L Warning lamp for dis tance
wa rning function ................................ .423 460
Index