heater MERCEDES-BENZ SL ROADSTER 2019 Owner's Manual

Switching
theseat ventilation on/off
Switching on/off The
three blueindicator lampsinthe buttons
indicate theblower settingyou have selected.
X Ensure thattheSmartK eyisin position 0048
in the ignition lock.
X To switch on:press button 0043repeatedly
until thedesired blowersettingis set.
X To switch off:press button 0043repeatedly
until allthe indicator lampsgoout.
i If
the battery voltage istoo low, theseat
vent ilation mayswitch off.
i If
you open theroof using theSmartK ey
(Y page 92),thedriver's seatventilation is
automatically switchedonand theside win-
dows open.
Problems withtheseat ventilation The
seat ventilation hasswitched offprema-
turely orcannot beswitched on.The vehicle's
electrical systemvoltage istoo low because
too many electrical consumers areswitched
on.
X Switch offelectrical consumers thatyoudo
not need, suchasthe rear window defroster
or interior lighting.
X Once thebattery issufficiently charged,
switch onthe seat heating again. AIRSCA
RF
Setting headlevelheating (AIRSCARF) G
WARNING
When AIRSCARF isswitched on,very hotair
can flow from thevent sin the head
restraint s.This could result inburns inthe
immediate vicinityofthe airvent s.There isa
risk ofinjury.
Reduce theheater output beforeitbecomes
too hot. The
AIRSCARF functionwarms thehead and
neck areaofvehicle occupants withwarm air.
The warm airflows outofthe holes inthe head
restraint s.
The three redindicator lampsinthe button
indicate theheating levelyouhave selected.
X Ensure thattheSmartK eyisin position 0048
in the ignition lock.
X To switch on:press button 0043.
Three redindicator lampsinthe button light
up. The blower startsupafter apreheating
phase ofseven seconds.
X Press button 0043repeatedly untilthedesired
heating levelisset.
X To switch off:press button 0043repeatedly
until allthe indicator lampsgoout.
i The
blower continues running forseven
seconds tocool down theheating elements.
i If
the battery voltage istoo low, AIRSCARF
may switch off. 102
SeatsSeats,
steering wheeland mirrors

Switching
air-recirculation mode
on/off
General notes If
you switch on<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ mode,the
windows canfogupmore quickly, inparticular
at low temperatures. Onlyuse<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[
mode briefly toprevent thewindows fromfog-
ging up.
<002400460057004C005900440057004C0051004A001200470048004400460057
004C005900440057004C0051004A> X
Turn theSmartK eytoposition 0048inthe igni-
tion lock (Ypage 126).
X To activate: pressthe0072 button.
The indicator lampinthe 0072 button lights
up.
i Air-r
ecirculation modeisautomatically
activated athigh levels ofpollution orat
high outside temperatures. Whenair-recir-
culation modeisactivated automatically,
the indicator lampinthe 0072 button isnot
lit. Outside airisadded afterabout
30 minutes.
X To deactivat e:press the0072 button.
The indicator lampinthe 0072 button goes
out.
i Air-r ecirculation modedeactivates auto-
matically:
R after approximately fiveminutes atout-
side temperatures belowapproximately
41 ‡(5 †)
R after approximately fiveminutes ifcooling
with airdehumidification isdeactivated
R after approximately 30minutes atoutside
temperatures aboveapproximately 41‡
(5 †) ifthe "Cooli ngwith airdehumidifi-
cation" functionisactivated Switching
theresidual heatonoroff
General notes The
residual heatfunct ionisonly availa bleon
vehicles forCanada.
It is possible tomake useofthe residual heat
of the engine tocont inue heating thestation-
ary vehicle forupto30 minutes afterthe
engine hasbeen switched off.The heating
time depends onthe setinterior temperature. <002400460057004C005900440057004C0051004A001200470048004400460057
004C005900440057004C0051004A> X
Turn theSmartK eytoposition 0092inthe igni-
tion lock orremove it(Y page 126).
X To activate: pressthe004B button.
The indicator lampinthe 004B button lights
up.
i The
blower willrun atalow speed regard-
less ofthe airflow setting.
i If
you activate theresidual heatfunct ionat
high temperatures, onlythevent ilation will
be activated. Theblower runsatmedium
speed.
X To deactivat e:press the004B button.
The indicator lampinthe 004B button goes
out.
Residu alheat isdeactivated automatically:
R after approximately 30minutes
R when theignition isswitched on
R ifthe battery voltage drops Setting
theairvents Import
antsafety notes G
WARNING
Very hotorvery cold aircan flow from the
air vent s.This could result inburns orfrost-
bite inthe immediate vicinityofthe air
vent s.There isarisk ofinjury.
Make surethatallvehicle occupants always
maintain asufficient distancetothe airout-
lets. Ifnecessary, redirecttheairflow to
another areaofthe vehicle interior. G
WARNING
When AIRSCARF isswitched on,very hotair
can flow from thevent sin the head
restraint s.This could result inburns inthe
immediate vicinityofthe airvent s.There isa
risk ofinjury.
Reduce theheater output beforeitbecomes
too hot. 122
Setting
theairventsClimat econ trol

X
To ope nor clos e:turn thumbw heel0043 to
the right or left. Se
ttin gthe blow eroutpu tof the AIR-
SC ARF vents G
WAR
NING
Whe nAIR SCAR Fis sw itch edon, very hotair
can flowfrom thevents inthe head
res trai nts. Thiscou ldres ultin bu rns inthe
imm ediate vici nity ofthe airvents .The reisa
ris kof inju ry.
Re duce the heateroutpu tbe fore itbe come s
too hot. Yo
ucan adjus tthe blow eroutpu tof AIR SCAR F
vents 0043using the AIRSCAR Fbu tton
(Y page 102 ). 12
4 Se
tting theairventsClimate contro l