2020 MERCEDES-BENZ S-CLASS SALOON LONG air filter

Overview of climate control sy
stems Note
s on climate control An interior air
filter in combination with the pre‐
fi lter in the engine compartment must alw ays be
used so that the air conditioning sy stem, pollu‐
tion le vel monitoring and the air filtration work
cor rectl y.Make sure that thefilter is ins talled
cor rectly and thefilter housing in the engine
compartment is closed cor rectly using the cap
and alw ays tightly sealed when in operation. Use
fi lters recommended and appr ovedby
Mercedes-Benz. Alw ays ha veservice workcar‐
ri ed out at a qualified specialist workshop. Overview of
the THERM OTRO NIC air condi‐
tioning control panel 1
s Increases thete mp erature
2 0 Switches the synchronisation function
on/off (/ page175)
3 Switches clima
tecontrol on/off
(/ page 173)
4 ¿ Switches the A/C function on/off
(/ page 174) 5
¬ Demists the windscreen
6 g Switches air-recirculation mode on/off
(/ page 175)
7 ¤ Switches there ar wind owheater
on/off
8 J Increases the air flow or switches on
climate contro l (/page 173)
9 r Reduces thete mp erature
A Ã Sets climate control toautomatic
mode, right (/ page174)
B ± Calls up the air conditioning menu
(/ page 174)
C Ã Sets clima tecontrol toautomatic
mode, left (/ page174)
D I Reduces the air flow or switches off cli‐
mate contro l(/ page 173) 17 2
Climate cont rol

R
frequent operation in mountainous terrain or
on poor road sur faces
R when the engine is of ten le ftidling for long
periods
R operation in particula rly dusty conditions
and/or if air-recirculation mode is frequently
used
In these or similar operating conditions, ha vethe
interior air filter, engine air cleaner, engine oil
and oil filter etc. changed more frequent ly. The
tyres must be checked more frequently if the
ve hicle is operated under increased loads. Fur‐
th er information can be obtained at a qualified
specialist workshop. Battery disconnection periods
The ASS
YST PLUS service inter val display can
calculate the service due date only when the
battery is connec ted. #
Display the service due date on the driver
display and no teit down before disconnect‐
ing the battery (/ page 347). Engine compartment
Ac
tive bonn et(pedestrian pr otection) Operation of
the active bonnet (pedestrian
pr otection)
In cer tain accident situations, the actuation of
th e active bonn etreduces therisk of injury to
pedestrians. The rear area of the bonn etis
ra ised byappr oximately 80 mm.
Af ter being triggered, the active bonn etremains
in thera ised position. Limited visibility due to
th era ised bonn etcannot be ruled out.
Af terth e active bonn ethas been actuated,
pedestrian pr otection may be limited.
Ha ve the full functionality of the active bonn et
re stored immediately in a qualified specialist
wo rkshop.
If necessar y,adjust your seat position and drive
carefully toaqu alified specialist workshop. If a
safe continued journey is not possible, contact a
qu alified specialist workshop. Opening and closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Do not open or close the bonn etifth ere
is a person in the bonn et's range of
mo vement. 348
Maintenance and care

Display messages
Possible causes/consequences and M
MSolutions
8 Reserve fuel level *T
he fuel supply has dropped into there ser verange. #
Refuel.
!
Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. #
Consult a qualified specialist workshop.
ý Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop. Tr
ansmission Display messages
Possible causes/consequences and M
MSolutions
Only select P when vehicle
is stationary *
It is possible toselect the park position jonly if theve hicle is stationar y. #
Tostop, depress the brake pedal. 512
Displaymessa ges and warning/indicator lamps