2020 MERCEDES-BENZ CLS COUPE sensor

Ty
re pressure moni torDisplay messages
Possible causes/consequences and M
MSolutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source As a result, no signals from the tyre pressure sensors are
being recei ved. The tyre pressure monitoring sy stem is temp orarily una vailable.
The tyre pressure monitoring sy stem will restart automatically as soon as the cause has been rectified. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if there is pressure loss in one or more of the
tyres.
Ty res with insuf ficient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. Tyre press. monitor inoper-
ative No wheel sensors
*T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. #
Fit wheels with suitable tyre pressure sensors.
h
Wheel sensor(s) missing *T
here is no signal from the tyre pressure sensor of one or more wheels. Nopressure value is displa yedfo rthe
af fected tyre. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop. 404
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient oil pressure #
Avoid driving with insuf ficient oil pressure. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Consult a qualified specialist workshop.
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. #
Consult a qualified specialist workshop. Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and
wa rning lamps indicate a malfunction only if they light up or
flash af terth e engine has been star‐
te d or during a journe y. Displ
aymessa ges and warning/indicator lamps 413

Engine
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ÿ Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
R The engine coolant pump is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120°C. &
WA RNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. Do not continue
driving. #
Notethe messages on the multifunction displa y.41 8
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop.
If th e coolant temp erature display is at the upper end of thete mp erature scale: #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 297). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120°C.
ÿ Coolant warning lamp (yel‐
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or bat tery cooling is faulty #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop.
;
Engine diagnosis warning
lamp *T
he yellow engine diagno stics 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 emissions limit value may ha vebeen 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 may ha vebeen run dr y. Displ
aymessa ges and warning/indicator lamps 419

Pa
int wo rk ............................................ 301
Plastic trim .......................................... 304
Re alwo od/trim elements ...................3 04
Re versing camera ................................ 302
Ro of lining ...........................................3 04
Seat belt .............................................. 304
Seat co ver ........................................... 304
Sensors ............................................... 302
St eering wheel .................................... 304
Ta ilpipes .............................................. 302
Tr ailer hit ch......................................... 302
Wa shing byhand ................................. 301
Wheels/rims ....................................... 302
Wi ndo ws .............................................. 302
Wi per blades .......................................3 02
Carpet (Care) .......................................... .304
Changing gears ........................................ 16 4
Manually ..............................................1 64
Changing hub caps .................................. 337
Changing the lights
Driving abroad (symm etrical low
beam) .................................................. 12 0
Cha rging
Bat tery (vehicle) ...................................3 18USB port ..............................................1
16
Chassis Damping characteristics ...................... 214
DY NA MIC BODY CONTROL .................. 214
Chassis le vel (AIR BODY CONT ROL)
Setting ................................................ .215
Child saf ety lock
Re ar door .............................................. 68
Re ar side wind ows................................. 70
Child seat Appr oval categories .............................. .56
At tach ing (no tes) ................................... 55
Basic instructions ..................................51
Fr ont passenger seat (no tes) ................. 66
Fr ont passenger seat (without auto‐
matic airbag shutoff) ............................. 66
ISOFIX/i-Size (fitting) ............................59
No tes on risks and dangers ...................52
Re commended child restra int sys‐
te ms ...................................................... 54
Seats suitable for belt-secu redch ild
re stra int sy stems ................................... 63
Seats suitable for i‑Size child
re stra int sy stems ................................... 59 Seats suitable
for ISOFIX child
re stra int sy stems ................................... 58
Securing on the co-driver seat ............... 67
Secu ring on there ar seat ...................... 64
To pTe ther ..............................................61
Child ren
Av oiding dangers in theve hicle .............52
Basic instructions .................................. 51
Chock ...................................................... .336
St orage location ..................................3 36
Cho ck
see Chock
City lighting ..............................................1 25
Cleaning see Care
Climate control ........................................ 137
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .138
Ac tivating/deactivating the A/C
function (MBUX multimedia sy stem) ... 13 8
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 13 9434
Index

¯
AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ 41 0
¯ AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................. 41 0
¯ AdBlue sy stem fault Engine
st art not possible ................................ .411
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 41 0
5 Add 1 litre engine oil when
next refuelling ...................................... 411
é ATTENTION ASSIST inoperative
.............................................................3 85
é ATTENTION ASSIS T:Take a
break! .................................................. 385
: Automatic driving lights inoper‐
ative .................................................... 366
Á Change key bat teries .................. 364
J Check brake fluid le vel.............. .383 #
Checkbrake pads See Owner's
Manual ................................................ 384
ï Check trailer hitch lock ..............371
h Check tyre(s) .............................. 405
! Clean the fuel filter .................... .376
ÿ Coolant Stop vehicle Switch
engine off ............................................ 375
_ Currently una vailable Camera
view restricted ..................................... 393
ç Currently unavailable Radar
sensors dirty .......................................3 92
! currently una vailable See Own‐
er's Manual ........................................ .396
÷ currently una vailable See Own‐
er's Manual ........................................ .397
5 Engine oil le vel cannot be
measured ............................................ .413
5 Engine oil le velRe duce oil le vel.. 412
5 Engine oil le velSt op vehicle
Switch engine off ................................. 4125
Engine oil pressu reStop
Switch off engine ................................. 413
ä Fault Drive at max. 80 km/h ...... 394
6 Front left malfunction Consult
wo rkshop (e xample)............................ .361
& inoperative Battery low .............. 369
& inoperative Refuel vehicle ..........3 69
& inoperative See Owner's Man. ... 369
! inoperative See Owner's Man‐
ual ....................................................... 397
÷ inoperative See Owner's Man‐
ual ....................................................... 398
T inoperative See Owner's Man‐
ual ....................................................... 399
G Inoperati ve................................. 400
: Intelligent Light Sy stem inoper‐
ative ....................................................3 67
Á Key not de tected (red displ ay
messa ge).............................................3 65 Index
437

Á
Key not de tected (white displ ay
messa ge).............................................3 64
: Left dipped beam (e xamp le) ...... .366
6 Left wind owbag malfunction
Consult workshop (e xample)................ 361
¢ Lowe ring .................................... 395
: Malfunction See Owner's Man‐
ual ....................................................... 366
ð Maximum speed exceeded ......... 388
Ø ................................................... 409
ç Off..............................................3 87
ë Off..............................................3 84
ï Operation only possible in
transmission position P .......................370
! Parking brake See Owner's
Manual ................................................ 380
É Please reduce speed .................. 395
Ý Please wait 48 V battery charg‐
ing ...................................................... .403 _
Rear left seat backrest not
loc ked (Example) .................................3 74
h Rectify tyre pressure .................. 405
Ø Refill Ad Blue See Owne r’s
Manual ................................................ 408
! Release parking brake ................ 383
¸ Replace air cleaner .....................377
Á Replace key ................................ 364
8 Reser vefuel le vel...................... .376
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 361
# See Owner's Manual .................. 401
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ....372
Ù Steering malfunction Stop
immediately See Owner's Manual .......372
# Stop vehicle Lea veengine run‐
ning ..................................................... 402
# Stop vehicle See Owner's Man‐
ual .......................................................4 02É
Stop vehicle Vehicle too low .......3 94
ç suspended ................................. 386
: Switch off lights .........................3 67
: Switch on headlamps ................. 367
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual ....... 409
+ Top up coolant See Owner ’s
Manual ................................................ 375
¥ Top up washer fluid .................... .374
ï Trailer coupling extending… ........370
! Turn on the ignition torelease
th e parking brake ................................ 383
d Vehicle is operational Switch
off ignition before exiting .................... 370
É Vehicle rising Please wait.......... .395
É Vehicle rising .............................. 395
h Warning tyre defect .................... 406
h Wheel sensor(s) missing ............ 404438
Index

Check tyre pressures
then restart
Ru n Flat Indicator ................................ 408
Cruise control and Limiter inope ra‐
tive ...................................................... 385
Cruise control inope rative ................... 385
Cruise control off ................................ 386
Fr ont-passenger airbag disabled See
Owner's Manual ..................................3 62
Fr ont-passenger airbag enabled See
Owner's Manual ..................................3 62
Hazard warning lamps malfunction‐
ing ...................................................... .368
Limi ter inoperative .............................. 386
Limiter passive ................................... .386
Mercedes me connect Services limi‐
te d See Owner's Manual .....................400
Mo tor can be star ted again .................4 03
N permanently active Risk of vehicle
ro lling .................................................. 378Only select
Park (P) when vehicle is
st ationary ............................................ 377
Place theke y in the mar ked space
See Owner's Manual ...........................365
PRE-SAFE impulse side inope rative
See Owner's Manual ........................... 363
PRE-SAFE inope rative See Owner's
Manual ................................................ 363
Re duce speed ...................................... 407
Re versing not poss. Consult work‐
shop ....................................................3 79
Risk of vehicle rolling Driver door
open and transmission not in P ...........378
Ru n Flat Indicator inope rative ............. 408
Speed limit (winter tyres) XXX km/h ... 388
Speed Limit Assi stcur rently una vail‐
able See Owner's Manual .................... 387
Speed Limit Assist inope rative ........... .387
St op vehicle Lea veengine running
Wa itTransmission cooling ...................379 To
shift out of P or N,depress brake
and start engine .................................. 377
To switch off the engine, press the
St art/ Stop button for at least 3 sec‐
onds or 3 times. .................................. 375
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 390
Tr af fic Sign Assi stinope rative ............. 390
Tr ansmission Malfunction Stop ........... 379
Ty re press. monitor cur rently una vail‐
able .................................................... .404
Ty re press. monitor inoperative ...........404
Ty re press. monitor inoperative No
wheel sensors .................................... .404
Ty re pressure Check tyres ...................407
Ty re(s) ove rheated ...............................4 06
Wi thout changing gear, consult work‐
shop ....................................................3 78
Display on the windscreen
see Head-up display 440
Index