key MERCEDES-BENZ SL CLASS 2020 Owners Manual

stantly,
thetire pressure monitorismalfunc-
tioning.
In addition tothe warning lamp,amessage
appea rsinthe multifunction display.Observe
the information ondispla ymessages
(Y page 230).
It may take uptoten minutes foramalfunc-
tion ofthe tire pressure monitortobe indica-
ted. Amalfunction willbeindicated bythe tire
pressure warninglampflashing forapprox-
imately oneminute andthen remaining lit.
When themalfunction hasbeen rectified, the
tire pressure warninglampgoesoutafter a
few minutes ofdriving.
The tirepressure valuesindicated bythe on-
board computer maydiffer fromthose meas-
ured atagas station withapressure gage.The
tire pressures shownbythe on-board com-
puter refertothose measured atsea level. At
high altitudes, thetire pressure valuesindica-
ted byapressure gagearehigher thanthose
shown bythe on-board computer. Inthis case,
do not reduce thetire pressures.
The operation ofthe tire pressure monitorcan
be affected byinterferen cefrom radio trans-
mitting equipment (e.g.radio headphones,
two-way radios)thatmay bebeing operated in
or near thevehicle.
Checki ngthe tire pressure electroni-
cally X
Make surethattheSmartKey isin position
0048 (Ypage 126)inthe ignition lock.
X Press the0059 or0065 button onthe steer-
ing wheel toselect theServ. Serv.
menu.
X Press the0063 or0064 button toselect
Tire Pressure Tire
Pressure.
X Press 0076.
The current tirepressure ofeach tireis
shown inthe multifunction display.
If the vehicle hasbeen parked forover
20 minutes, theTire pressure willbe Tire
pressure willbe
displayed afterdriving afew minutes displayed
afterdriving afew minutes
message appears.
Aft erateach-in process, thetire pressure
monitor automatically detectsnewwheels or
new sensors. Aslong asaclear allocation of
the tire pressure valuetothe individua lwheels
is not possible ,the Tire Pressure Monitor Tire
Pressure Monitor
Active Active
displaymessage isshown instead of
the tire pressure display.The tirepressures
are alread ybeing monitored. Tire
pressure monitorwarning mes-
sages The
tirepressure monitordetectsapressure
loss inone ormore tires:
R Ifthe tire pressure monitordetectsapres-
sure lossinone ormore tires,awarning
message isshown inthe multifunction dis-
play .The yellow tire pressure warninglamp
then lights up.
R Ifthe Please Correct TirePressure Please
Correct TirePressure
message appearsinthe multifunction dis-
play ,the tire pressure inat least onetireis
too low. Thetirepressure mustbecorrect ed
when theopportunity arises.
R Ifthe Check Tires Check
Tiresmessage appearsinthe
multifunction display,the tire pressure inat
least onetirehas dropped significantly. The
tires must bechecked.
R Ifthe Warning TireMalfunction Warning
TireMalfunction mes-
sage appea rsinthe multifunction display,
the tire pressure inat least onetirehas
dropped suddenly .The tires must be
checked.
Observe theinstruct ionsandsafety notesin
the displa ymessages inthe "Tires" section
(Y page 230).
If the wheel positions onthe vehicle arerota-
ted, thetire pressures maybedispla yedfor
the wrong positions forashort time.Thisis
rectified afterafew minutes ofdriving, andthe
tire pressures aredispla yedforthe correct
positions.
Restart ingthe tire pressure monitor When
yourestart thetire pressure monitor,all
existing warning messages aredeleted andthe
warning lampsgoout. Themonitor usesthe
currently settire pressures asthe reference
values formonitoring. Inmost cases, thetire
pressure monitorwillautomaticall ydetect the
new reference valuesafteryouhave changed
the tire pressure. However, youcan also set
reference valuesmanuall yas described here.
The tirepressure monitorthenmonitors the
new tirepressure values.
X Set thetire pressure tothe value recom-
mended forthe corresponding drivingsitua-
tion onthe Tire andLoading Information
placard onthe driver's sideB-pillar
(Y page 299). 304
Tire
pressur eWheels andtires

Add
itiona ltire pressu revalues for differ ent
lo ad scan also be fou ndonthe tire pressu re
tab leon the inside of the fuel fillerfla p
(Y page 299 ).
X Ma kesure tha tthe tire pressu reiscorr ect
on allfou rwh eels.
X Ensu retha tthe Sma rtKeyis in po sitio n0048
in the igniti onlock.
X Pre ssthe 0059 or0065 button onthe stee r-
ing wheelto sel ect the Serv. Ser
v.menu .
X Pre ssthe 0063 or0064 button tosel ect
Tir ePre ssure Tir
ePre ssure.
X Pre ss0076.
The multifu nctio ndispl aysho wsthe current
tire pressu refor the individu altire sor the
Tir epre ssurewillbe displayed Tir
epre ssurewillbe displayed
aft erdrivingafew minutes aft
erdrivingafew minutesmes sage.
X Pre ssthe 0064 button.
The Use Curren tPre ssures asNew Use
Curren tPre ssures asNew
Ref erence Values Ref
erence Values message appe arsin the
mu ltifu nctio ndispl ay.
If yo uwi sh toconfi rm the restart:
X Pre ss0076.
The TirePre ss. MonitorRes tarted Tir
ePre ss. MonitorRes tarted
mes sage appe arsin the multifu nctio ndis-
pl ay .
After driving forafew minu tes,thesystem
che cks whethe rthe current tirepressu res
ar ewi thi nthe specified range .The new tire
pre ssu res arethen acceptedas refere nce
va lues and moni tored.
If yo uwi sh tocan celthe restart:
X Pre ss0038.
The tirepressu revalues stor edatthe last
res tart willconti nuetobe moni tored. Radio
typeapprov alforthe tire pres -
sure monitor Co
untry Radio
typeappro valnumb er USA FCC
ID:MRXMW 2433A
FCC ICID:MR XGG4 Thisde vice
comp lies with part15 ofthe
FCC rulesand with licens e
exe mpt RSS standa rds ofIndu s-
try Canad a.Ope ratio nis su bje ct
to the followi ng cond itions. (1)
Thi sde vice maynot cause
ha rmfu linte rference ,and (2)
Thi sde vice mustacce ptany
inte rference received,incl uding
inte rference thatma ycau se
und esired opera tion.Le pre sent
ap parei lest confo rmed'indu s-
trie Canad aap plica bles aux
ap parei lsradio exe mpts de
li cence .L'e xploitati onest
au thor isee auxde ux cond itions
su iva ntes. (1)L'appareilne doit
pa spro duire debro uillag e, et
(2) L'autisatue rde l'ap parei l
do itacce ptertou tbro uillag e
ra dioe lectriq uesubi,mem esi le
bro uillag eest susce ptible d'e n
comp romettrelefoncti onne-
ment. WARNING :Ch ang esor
mod ificati ons notexpressly
ap pro ved bythe party responsi -
bl e for comp liance couldvoi d
the user' sau thor itytoopera te
the equipme nt.The term "IC:"
be fore theradio certi fication
num beronl ysigni fiesCa nad a
tech nicalspe cificati ons were
met.
FCC ID:MR XMC34MA4 This
de vice comp lies with part15 of
the FCC rulesand with licens e
exe mpt RSS standa rds ofIndu s-
try Canad a.Ope ratio nis su bje ct
to the followi ng cond itions. (1)
Thi sde vice maynot cause
ha rmfu linte rference ,and (2)
Thi sde vice mustacce ptany
inte rference received,incl uding
inte rference thatma ycau se
und esired opera tion.Le pre sent
ap parei lest confo rmed'indu s-
trie Canad aap plica bles aux
ap parei lsradio exe mpts de Tire
pres sure
305Whe elsand tires Z

X
Shif tthe trans missionto pos ition 005D.
X Swi tch offthe engi ne.
X Vehi cles without KEYLES S-GO :remo ve
the Smar tKeyfrom theigniti onlock.
X Vehi cles with KEYLES S-GO :ope nthe driv-
er's door.
The vehicleelectro nicsnow have statu s0.
Thi sis the same asthe Smar tKeyhaving
bee nremo ved.
X Vehi cles with KEYLES S-GO :remo vethe
Start/Sto pbu tton from theigniti onlock
(Y page 126 ).
X Ifincl uded inthe vehicleequ ipment, remove
the tire-cha nge tool kitfrom thevehicle.
X Safe guard thevehicleag ainst rolling away.
Se curi ngthe vehic leto preve ntitfrom
rol ling awa y If
yo ur veh icleis equ ipped with awh eel chock,
it can befou ndinthe tire-cha nge tool kit
(Y page 280 ).
The folding wheel chock isan additiona lsa fety
mea sure to pre vent thevehiclefrom rolling
aw ay,for exa mpl ewh en cha nging awh eel .
X Fol dboth plate sup wa rds 0043.
X Fol dou tlo we rpl ate 0044.
X Gu ide the lugs on the lowe rpl ate fullyinto
the openings inba se plate 0087. X
Place chocks orothe rsu ita ble item sund er
the front andrearof the wheel that isdiag o-
nal lyopp ositethe wheel youwi sh to
cha nge.
Rais ingthe vehic le G
WARNI
NG
If yo udo not position the jack corre ctlyat
the appro priate jacki ngpointofthe vehicle,
the jack couldtip ove rwi th the vehicle
rai sed .The reisaris kof inju ry.
Only position the jack atthe appro priate
jacki ngpointofthe vehicle. The base ofthe
jack mustbe pos itioned vertically,di rectl y
und erthe jacki ngpointofthe vehicle.
! Only
position the jack atthe appro priate
jacki ngpointofthe vehicle. Othe rwise, you
cou ldda mag ethe vehicle.
Obs erve thefollowi ng when raising thevehi-
cle :
R To raise the vehicle, only usethe vehicle-
spe cificjack thathasbee nteste dand
ap pro ved byMer cede s-Benz. Ifus ed incor -
rectl y,the jack couldtip ove rwi th the vehi-
cle raised .
R The jack isdes igned only toraise and hold
the vehiclefor asho rttime while awh eel
is bei ng cha nged .It mus tnot beused for
per formi ngmai ntenance workund erthe
veh icle.
R Avoi dcha nging thewheel onuphilland
dow nhillslo pes .
R Befo reraising thevehicle, secu reitfrom
rol ling away by applying the parking brake
and inserting wheel chocks .Do not disen-
ga ge the parking brakewhile the vehicleis
rai sed . Chan
ging awh eel
317Whee lsand tires Z