2019 MERCEDES-BENZ S-CLASS CABRIOLET tire pressure

If a course-cor
recting brake application occu rs,
th ere dwa rning lamp flashes in the outside mir‐
ro r and a warning tone sounds. In addition, a dis‐
pl ay 1 indicating the danger of a side collision
appears in the multifunction displa y.
In rare cases, the sy stem may make an inappro‐
priate brake application. This brake application
may be inter rupte d at any time if yousteer
slightly in the opposite direction or accelera te.
Sy stem limitations
Either a course-cor recting brake application
appropria teto the driving situation, or none at
all, may occur in thefo llowing situations:
R Vehicles or obs tacles, e.g. crash ba rriers, are
located on bo thsides of your vehicle.
R Ave hicle approaches too closely on the side.
R You ha veadop ted a sporty driving style with
high cornering speeds.
R You brake or accelerate significantl y.
R A driving sa fety sy stem inter venes, e.g. ESP ®
or Active Brake Assi st.
R ESP ®
is deacti vated. R
A loss of tire pressure or a faulty tire is
de tected.
Ac tivating/deactivating Blind Spot Assi stor
Ac tive Blind Spot Assi st
Multimedia sy stem:
, Vehicle .
k Assistance .
Blind
Spot Assist #
Activate 0073or deacti vate 0053 the function. Ac
tive Lane Keeping Assist Fu
nction of Active Lane Keeping Assist Ac
tive Lane Keeping Assist monitors the area in
front of your vehicle bymeans of multifunction
camera 1. It ser vesto protect you against unin‐
te ntional lyleaving your lane. You will be warned
by vibration pulses in thesteering wheel and gui‐ Driving and parking
205

R
You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R When ESP ®
is deactivated.
R If a loss of tire pressure or a faulty tire has
been de tected and displ ayed.
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are
highly variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
th e sun or reflections.
R Ifth e windshield in the area of the multifunc‐
tion camera is dirty, or if the camera is fog‐
ge d up, damaged or co vered.
R Ifth ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks.
R Ifth e lane markings are worn, dark or cov‐
ered. R
Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R Ifth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
R Ifth ero adw ayisvery nar row and winding.
Ve hicles with Driving Assistance pac kageor
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with sn ow,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which
yo u are driving has been de tected, no lane-cor‐
re cting brake application occu rs.Ac
tivating/deactivating Active Lane Keeping
Assist (vehicles with Parking Assist
PA RKTRONIC) &
WARNING Risk of accident despi te
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane. #
Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application. &
WARNING Risk of accident despi teinter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction. Driving and parking
207

Menus and submenus
Fu
nctions on the Service menu of the on-
board compu ter On-board computer:
, Service #
Toselect the function: swipe upwards or
down wards on the left-hand Touch Control. #
Press the left-hand Touch Control.
Fu nctions in theService menu:
R Message memory (→ page418)
R Tires:
- Che cking the tire pressure with the tire
pressure monitoring sy stem
(→ page 382)
- Restarting the tire pressure monitoring
sy stem (→ page 383)
R ASSYST PLUS: calling up the service due
date (→ page 336) Calling up
the assistant display On-board computer:
, Assistance
% When you ha veset thest yle to Classic ,you
can view the assis tant displ aymenu con‐
te nts in the left-hand portion of the Instru‐
ment Displa y.
The following displa ysare available on the assis‐
ta nt displ aymenu:
R Assis tant displ ay
R Attention le vel (→ page 196) #
Toswitch between the displa ys:swipe
upwards or down wards on the left-hand
To uch Control. St
atus displa yson the assis tant displ ay:
R 00D7 :AT TENTION ASSIST deactivated
R 00D4: Active Brake Assi stdeactivated
R Light lane markings: Active Lane Keeping
Assist activated
R Green lane markings: Active Lane Keeping
Assist active Instrument Display and on-board computer
215

R
the windshield wiper switch is in position 005A.
R the SmartK eyis at a minimum dis tance of
10 ft(3 m) away from theve hicle, otherwise
th e trunk lid could open unintentionally.
R in car washes with a con veyo r sy stem: neu‐
tral 005Cis engaged.
% In car washes with a con veyo r sy stem: if you
wo uld like tolea vetheve hicle while it is
being washed, make sure the SmartK eyis
located in theve hicle. The 005Dgear is other‐
wise automatically engaged.
% If, af terth e car wash, youre mo vethewax
from the windshield and wiper rubbers, this
will pr event smearing and reduce wiper
noise. Information on using a po
werwa sher &
WARNING Risk of accident when using
high-pressure cleaning equipment wi th
ro und-spr aynozzles
The wate r jet from a round-spr aynozzle (dirt
grinder) may cause dama getotires and sus‐
pension components that is not visible.
Components damaged in this wa y may fail
unexpec tedly. #
Do not use high-pressure cleaning
equipment wi thround-spr aynozzles to
clean your vehicle. #
Damaged tires or suspension compo‐
nents must be replaced immediatel y. To
avo id damage to yourvehicle, obser vethefo l‐
lowing when using a po werwa sher:
R keep the SmartK eyat least 10ft(3 m) away
from theve hicle. Otherwise the trunk lid
could open unintentionall y.
R maintain a dis tance of at least 11.8 in
(30 cm) totheve hicle. R
vehicles with deco rative foil: parts of your
ve hicle are co vered with a decorative foil.
Maintain a dis tance of at least 27.6 in
(70 cm) between thefo il-c ove red parts of the
ve hicle and the nozzle of the po werwa sher.
Mo vethe po werwa sher nozzle around whilst
cleaning. The waterte mp erature of the
po we rwa sher must not exceed 140 °F
(60 °C).
R obse rveth e information on the cor rect dis‐
tan ce in the equipment manufacturer's oper‐
ating instructions.
R do not point the nozzle of the po werwa sher
directly at sensitive parts such as tires, the
soft top, the wind deflector net, slits, electri‐
cal component parts, batteries, light sources
and ventilation sl ots. Wa
shing theve hicle byhand Obser
vethe legal requ irements, e.g. in a number
of countries, washing byhand is only permitted
in specially designated wash ba ys. #
Use a mild cleaning agent, e.g. car shampoo. 344
Maintenance and care

Ti
re s with run-flat characteristics: #
Obse rveth e information and warning
no tes on MOExtended tires (run-flat
tires). In
theeve nt of a flat tire, thefo llowing options
are available depending on your vehicle's equip‐
ment:
R Vehicles with MOExtended tires: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you obse rvethe
no tes on MOExtended tires (run-flat tire)
(→ page 357).
R Vehicles with a TIREFIT kit: you can repair
th e tires so that it is possible tocontinue the
jou rney for a short period of time. Todo this,
use the TIREFIT kit (→ page 358).
R Vehicles with Mercedes me connect: you
can make a call forRo adside Assis tance via
th eove rhead control panel in the case of a
breakdown (→ page 302).
R Allvehicles: change the wheel
(→ page 400). Note
s on MOExtended tires (run-flat tire) &
WARNING Risk of accident when driving
in eme rgency mode
When driving in emer gency mode, the han‐
dling characteristics are impaired. e.g. when
cornering, when accelerating stronglyand
when braking. #
Do not exceed the permissible maxi‐
mum speed for MOExtended tires. #
Avoid any abrupt steering and driving
maneuvers as well as driving over
obs tacles (curbs, pot holes, off-road).
This applies, in pa rticular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vibration
R smoke which smells like rubber
R continuous ESP ®
inter vention
R crac ksin tire side walls #
After driving in emergency mode ha ve
th erims checkedby aqu alified special‐
ist workshop with rega rd totheir fur ther
use. #
The defective tire must be replaced in
eve rycase. Wi
th MOExtended tires (run-flat tire), you can
continue todrive your vehicle even if there is a
tot al loss of pressure in one or more tires. How‐
eve r,th e tire af fected must not show any clearly
visible damage.
Yo u can recognize MOExtended tires bythe
MOExtended marking which appears onthe side
wa ll of the tire.
Ve hicles with tire pressure monitoring sys‐
te m: MOExtended tires may only be used in con‐
junction wi than activated tire pressure monitor‐
ing sy stem.
If a pressure loss warning message appears in
th e multifunction displa y,proceed as follo ws:
R Check the tire for dama ge.
R If driving on, obser vethefo llowing no tes. Breakdown assis
tance 357

Driving distance possible in eme
rgency
mode af ter the pressure loss warning: Load condition Driving distance pos‐
sible in emergency
mode
Pa rtially laden 50 miles (80 km)
Fu lly laden 19miles (30 km) The driving dis
tance possible in emergency
mode may vary depending on the driving style.
Obser vethe maximum permissible speed of
50 mph (80 km/h).
If a tire has gone flat and cannot be replaced
with an MOEx tended tire, you can use a stand‐
ard tire as a temp orary measure. TIREFIT kit
storage location The TIREFIT kit is located under
the trunk floor.
Mercedes vehicles: observeth e no tes in the
Supplement. Otherwise, you may not recognize
dangers. 1
Tire sealant bottle
2 Tire inflation compressor Using
the TIREFIT kit Re
quirements:
R Tire sealant bottle
R Enclosed TIREFIT sticker
R Tire inflation compressor
R Disposable glov es
Yo u can use TIREFIT tire sealant toseal per fora‐
tion dama geof up to0.16 in (4 mm), particularly
th ose in the tire conta ct surface. You can use TIREFIT in outside
temp eratures down to-4 °F
(-20 °C). &
WARNING Risk of accident when using
tire sealant.
In thefo llowing situations, the tire sealant is
unable toprov ide suf ficient breakdown assis‐
ta nce, as it is unable toseal the tire proper ly:
R There are cuts or punctures in the tire
lar gerth an those pr eviously mentioned.
R The wheel rim is dama ged.
R You ha vedriven at a very low tire pres‐
sure or on a flat tire. #
Do not continue driving. #
Consult a qualified specialist workshop. &
WARNING Risk of inju ryand poisoning
from tire sealant
The tire sealant is harmful and causes ir rita‐
tion. Do not allow it tocome into contact
wi th th e skin, eyes or clo thing, and do not 358
Breakdown assis tance

#
Push the plug of hose 5into flange 6of
tire sealant bottle 1until the plug engages. #
Place tire sealant bottle 1head down wards
into recess 2ofthe tire inflation compres‐
sor. #
Remo vethe cap from valve 7 onthefa ulty
tire. #
Screw filling hose 8onto valve 7. #
Insert connec tor4 into a 12V soc ket in
yo ur vehicle. #
Switch on the ignition. #
Press on and off switch 3onthe tire infla‐
tion compressor.
The tire inflation compressor is switched on.
The tire is inflated. Fir st, tire sealant is pum‐
ped into the tire. The pressure may brief ly
ri se toappr oximately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation compres‐
sor du ring this phase. #
Let the tire inflation compressor runfo r a
maximum of eight minutes.
The tire should then ha veattained a tire
pressure of at least 180 kPa (1.8 bar/26 psi).
If tire sealant lea ksout, make sure you clean the
af fected area as quickly as possible. It is prefera‐
ble touse clear water.
If yo uge t tire sealant on your clo thing, ha veit
cleaned as soon as possible with per chloroe thy‐
lene.
If a ti repressure of 180 kPa (1.8 bar/26 psi)
has not been attained af ter eight minutes: #
Switch off the tire inflation compressor. #
Unscr ew thefilling hose from theva lve of the
fa ulty tire.
Please no tethat tire sealant may leak out when
unscr ewing thefilling hose. #
Drive forw ards or reve rseve ry slowly for
appr oximately 33 ft(10 m). #
Pump up the tire again.
Af ter a maximum of eight minutes the tire
pressure must be at least 180 kPa (1.8 bar/
26 psi). &
WARNING Risk of accident due tothe
specified tire pressure not being reached
If th e specified tire pressure is not reached
af te rth e specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this ins tance.
Dama ged tires and a tire pressure that is too
low can significantly impair braking and han‐
dling characteristics. #
Do not continue driving. #
Consult a qualified specialist workshop. 360
Breakdown assis tance

If a tire pressu
reof180 kPa (1.8 bar/26 psi)
has been attained af ter eight minutes: &
WARNING Risk of accident from driving
wi th sealed tires
A tire temp orarily sealed with tire sealant
impairs driving characteristics and is not
suitable for higher speeds. #
Adapt your driving style according lyand
drive carefull y. #
Do not exceed the maximum speed
limit with a tire that has been repaired
using tire sealant. Obser
vethe maximum permissible speed for a
tire sealed with tire sealant 50 mph (8 0 km/h). #
Affix th e upper section of the TIREFIT sticker
to the instrument clus ter in a location where
it will be easi lyseen bythe driver.
* NO
TEStaining caused byleaking tire
sealant Af
ter use, excess tire sealant may leak out
from thefilling hose. #
Therefore, place thefilling hose in the
plastic bag that con tained the TIREFIT
kit. +
ENVIRONMEN
TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal Ti
re sealant contains polluta nts. #
Have the tire sealant bottle disposed of
professionall y,e.g. at an authorized
Mercedes-Benz Center. #
Switch off the tire inflation compressor. #
Unscr ew thefilling hose from theva lve of the
fa ulty tire. #
Stow th e tire sealant bottle, the tire inflation
compressor and thewa rning triangle. #
Pull away immediatel y. #
Stop driving af ter appro ximately ten minu tes
and check the tire pressure using the tire
inflation compressor.
The tire pressure must now be at least
13 0 kPa (1.3 bar/19 psi). &
WARNING Risk of accident due tothe
specified tire pressure not being reached
If th e specified tire pressure is not reached
af te r a brief drive, the tire is too badly dam‐
aged. The tire sealant cannot repair the tire
in this ins tance.
Dama ged tires and tire pressure that is too
low can significantly impair the braking prop‐
erties and the handling characteristics. #
Do not continue driving. #
Consult a qualified specialist workshop. In cases such as
the one mentioned abo ve, con‐
ta ct an au thorized Mercedes-Benz Center. Or
call 1-800-FOR-MERC edes (inthe USA) or
1-800-387-0 100(in Canada). #
Cor rect the tire pressure if it is still at least
13 0 kPa (1.3 bar/19 psi). You will find the
va lues in theTire and Loading In form ation
placard on the B-pillar on the driver's side or
in the tire pressure table in the fuel filler flap. #
Toincrease the tire pressure: switchon
th e tire inflation compressor. Breakdown assis
tance 361