2020 MERCEDES-BENZ S-CLASS SALOON LONG boot

R
All electrical consumers are switched off.
R The ignition is switched off.
The electrical fuses are located in thefo llowing
fuse bo xes:
R Fuse box in the engine compartment on the
driver's side (/ page379)
R Fuse box on the driver's side of the cockpit
(/ page 381)
R Fuse box in the front passenger foot we ll
(/ page 381)
R Fuse box in the boot on theright-hand side
of theve hicle, when vie wed in the direction
of tr avel (/ page 381) Opening and closing
the fuse box in the
engine compa rtment Requ
irements:
R Obser vethe no tes on electrical fuses
(/ page 378).
R Have thefo llowing tools readily available:
- a dry clo th -
a sc rewdriver with an appropriate head
Opening
% Depending on theve hicle equipment, access
to the fuse box may be limited. Mercedes-
Benz recommends consulting a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre. &
WARNING Risk of inju ryfrom using the
windscreen wipers while the engine bon‐
net is open
When the engine bonn etis open, and the
windscreen wipers are set in motion, you can
be trapped bythe wiper linkage. #
Alw ays switch off the windscreen wip‐
ers and ignition before opening the
engine bonn et. #
Release thero tary catches on co ver1 and
pull the co ver up and out. #
Remo veany existing moisture from the fuse
box using a dry clo th. Breakdown assis
tance 37 9

#
If present, engage hoses 5inthere tai ning
clips in the engine compartment and vehicle
body. #
If present, engage hoses 4inthere tai ning
clips on the fuse box and vehicle body. #
If present, insert electrical component 2
into the holder on the fuse box lid and
tighten scr ews3. #
Insert co ver1 and engage thero tary
catches. Opening and closing the fuse box in the
co
ckpit Re
quirements:
R Obser vethe no tes on electrical fuses
(/ page 378). #
Open cover1 inthe direction of the ar row
and remo veit. Opening and closing
the fuse box in the front
passenger foot we ll Re
quirements:
R Obser vethe no tes on electrical fuses
(/ page 378). #
Open cover1 inthe direction of the ar row
and remo veit. Opening and closing
the fuse box in the boot Re
quirements:
R Obser vethe no tes on electrical fuses
(/ page 378). Breakdown assis
tance 381

On
vehicles with the same front and rear wheel
size, you can inter change the wheels every
5000 to10,000 km, depending on thewe ar.
Ensure the direction of rotation is maintained for
th e wheels.
Obser vethe instructions and saf ety no tes on
"Changing a wheel" when doing so
(/ page 391). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tyres from conta ct withoil,
grease or fuel. Overview of
the ty re-change tool kit Apart from some countr
y-specific variants, vehi‐
cles are not equipped with a tyre-change tool kit.
Fo r more information on which tyre-changing
to ols are requ ired and appr ovedfo r per form ing a wheel
change on your vehicle, consult a qualified
specialist workshop.
Re quired tyre-changing tools may include, for
ex ample:
R Jack
R Chock
R Wheel wrench
% The jack weighs appr oximately 3.4 kg.
The maximum load capacity of the jack can
be found on thest icke r af fixe dto the jac k.
The jack is maintenance-free. If there is a
malfunction, please conta ct aqualified spe‐
cialist workshop.
The tyre-change tool kit is located in tool bag 1
on the boot floor. The
tool bag contains:
R Jack
R Gloves
R Wheel wrench
R Centring pin
R Folding chock
R Ratchet for jack Preparing
theve hicle for a wheel change Requ
irements:
R The requ ired tyre-change tool kit is available.
If yo ur vehicle is not equipped with the tyre- Wheels and tyres
391

R
The foot ofthe jack must be positioned verti‐
cally under the jack support point. Ru
les of conduct when theve hicle is raised:
R Never place your hands and/or feet under
th eve hicle.
R Never lie under theve hicle.
R Do not start the engine and do not release
th e electric parking brake.
R Do not open or close any doors or the boot
lid. #
Using the wheel wrench, loosen the wheel
bolts on the wheel you wish tochange by
about one full turn. Do not unscr ewthe bolts
comple tely. Po
sition of jack support points &
WARNING Risk of inju ryfrom incor rect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised. #
Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned
ve rtically under the jacking point of the
ve hicle. Wheels and tyres
393

#
Only use an emergency spare wheel or
spare wheel brief ly. #
Do not deacti vate ESP ®
. #
Have the emer gency spa rewheel or
spare wheel of a dif fere nt size replaced
at the nearest qualified specialist work‐
shop. The new wheel must ha vethe
cor rect dimensions. %
The emergency spa rewheel is secured in the
emer gency spa rewheel bag in the boot.
Obser vethefo llowing no tes on fitting an emer‐
ge ncy spa rewheel:
R Check the tyre pressure of the emer gency
spa rewheel fitted. Co rrect the pressure as
necessar y.
R The maximum permissible speed with an
emer gency spa rewheel fitted is 80 km/h.
R Do not fit th e emer gency spa rewheel with
sn ow ch ains.
R Replace the emer gency spa rewheel af ter six
ye ars at the latest, rega rdless of wear. R
Use the wheel bolts that are included with
th e emer gency spa rewheel.
Specified tigh tening torq ue: 130 Nm
% Ve
hicles with a tyre pressure monitoring
sy stem: if an emer gency spa rewheel is fit‐
te d, the tyre pressure monitoring sy stem
cann otfunction reliabl y.Fo r a few minutes
af te r an emer gency spa rewheel is fitted, the
sy stem may still display the tyre pressure of
th ere mo ved wheel. Only restart the sy stem
again when the emer gency spa rewheel has
been replaced with a new wheel.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 384)
R Tyre pressure table (/ page 385)
R Notes on fitting tyres (/ page 387) Wheels and tyres
397

Display messages
Possible causes/consequences and M
MSolutions #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. #
Consult a qualified specialist workshop.
Please teach in trailer cou-
pling again using the but-
ton in load compartment
Wait for it to extend/
retract *T
he swivel mo vement of the trailer hitch is impaired. #
Use the button on the boot lid totrig ger a ne w,compl ete swivel mo vement until the ball neck engages beneath
th e bumper.
Ù
Steering malfunction Drive
carefully Visit workshop *A
powe rst eering malfunction has occur red. Steering characteristics may be impaired as a result. #
Drive on carefully. #
Consult a qualified specialist workshop.
Ù Steering malfunction
Increased physical effort
See Owner's Manual *T
he po werst eering assis tance is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 505

Display messages
Possible causes/consequences and M
MSolutions
C *A
t least one door is open. #
Close all doors.
M *T
he bonnet is open. &
WARNING Risk of accident due todriving 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. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
N *T
he boot lid is open. &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if the boot lid is open when the engine is running, especially if theve hicle is in motion. #
Alw ays switch off the engine before opening the boot lid. #
Never drive with the boot lid open. 508
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Close the boot lid.
Anti-theft alarm system
Malfunction *T
he anti-theft alarm sy stem is malfunctioning. #
Consult a qualified specialist workshop.
Ambient light warning sup-
port inoperative *T
he ambient lighting may not pr ovide full visual warning support. #
Lock theve hicle and unlock it again af ter a few minutes. #
Ifth e display message appears regularly, contact a qualified specialist workshop.
¥
Top up washer fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. #
Top up thewa sher fluid (/ page 352).
¥ Intensive cleaning activa-
ted for 30 s *I
ntensi vecleaning of the windscreen has been activated (/ page164). Displ
aymessa ges and warning/indicator lamps 509