change key battery MERCEDES-BENZ S-CLASS SALOON LONG 2021 Owners Manual

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Á
Change key batteries *T
hekey battery is dischar ged. #
Replace the battery (/ page 90).
Á Key not detected (white dis-
play message) *T
hekey is cur rently unde tected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot for starting with theke y (/ page 212).
Á Key not detected (red dis-
play message) *T
hekey cann otbe de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you switch o. theve hicle:
R You can no longer start theve hicle.
R You cannot centrally lock theve hicle. #
Ensu rethat theke y is in theve hicle.
If th eke y de tection function has a malfunction due toa st rong radio signal source: #
Stop theve hicle immediately in accordance with the tra1c conditions. #
Place theke y in the slot for starting the engine with theke y (/ page 212). Display messages and
warning/indicator lamps
501
501

Û
Battery overheated Stop, every-
body out! Outdoors if possible ................ 511
Ø Beginning emer gency stop............ 542
J Brake immediate ly........................ 536
Á Change key batteries .................... 501
è Charger cable connected .............. 509
J Check brake 0uid le vel.................. 536
ï Check trailer hitch lock (white
display message) .................................... 517
h Check tyre(s) ................................ 563
! Clean the fuel /lter....................... 527
É Compressor is cooling .................. 552
ÿ Coolant Stop Switch o. the
ve hicle ................................................... 526
! currently una vailable See Own-
er's Manual............................................5 54
÷ currently una vailable See Own-
er's Manual............................................5 55
5 Engine oil le vel cannot be meas-
ured....................................................... 570 5
Engine oil le velRe duce oil le vel..... 569
5 Engine oil le velSt op Switch o.
th eve hicle ............................................. 569
5 Engine oil pressure Stop Switch
o. theve hicle ....................................... .570
ä Fault Drive at max. 80 km/h
...................................................... 549, 550
ä Fault Stop.................................... .551
6 Front leT malfunction Consult
wo rkshop (e xample)...............................4 97
6 Fueltank is depre ssurised
Re ady forre fuelling............................... .514
Û Have high- voltage system
ch ecked See Owner's Manual ................ 512
& inoperative Battery low................. 506
& Inoperative Char gehigh- voltage
battery................................................... 507
& inoperative High-voltage battery
ch arging inco mplete ............................... 507
& Inoperative Refuel vehicle ............ .506 &
inoperative See Owner's Man........ 506
! inoperative See Owner's Manual.. .555
÷ inoperative See Owner's Manual.. .556
T inoperative See Owner's Manual.. .557
G Inoperative................................... 558
¥ Intensive cleaning activated for
30 s....................................................... 525
Á Key being initialised Please wait.... 502
Á Key not de tected (red display
message)...............................................5 01
Á Key not de tected (white display
message)...............................................5 01
: LeT dipped beam (e xample).......... 502
6 LeT windowbag malfunction
Consult workshop (e xample).................. 498
: Malfunction See Owner's Man-
ual.........................................................5 03
Û Malfunction Visit workshop ........... 511
d Malfunction.................................. 512
Û Malfunction.................................. 511 Index
599 599