MERCEDES-BENZ S-CLASS SALOON LONG 2022 Owners Manual

The vehicle can detect if certain wear parts need
t
o be replaced or if malfunctions have occurred in
vehicle systems. If the Telediagnostics service is
activated, relevant data is automatically transmit-
ted to the manufacturer. If fault conditions are
detected by the vehicle system self-diagnosis, the
system transmits recommendations for action to
the Mercedes-Benz customer centre depending
on the fault detected. The customer centre trans-
mits the data to the service partner that you have
entered on the Mercedes me website at: http://
www.mercedes.me.
For selected faults, the notiNcation that a mal-
function has been detected may appear in the
multimedia system with a request to contact the
Mercedes-Benz Customer Centre. From this mes-
sage, a call can be made directly to the customer
centre for assistance.
% The transmission of a no
tiNcation to the multi-
media system depends on the country, vehi-
cle model and equipment and requires a fast
data connection, over which the service pro-
vider has no inOuence.
% Reliable fault detection is subject to technical
limit
ations. Therefore, only a limited selection of faults can be detected and recommenda-
tions f
or action transmitted to the customer
centre and the service partners. Mercedes-
Benz AG is continuously working on the
expansion of this service. The fault detection
depends on the country, vehicle model and
equipment. Data transferred when using Telediagnostics
When the service is activated, relevant data is
aut

omatically transferred to determine the next
required scope of maintenance as well as fault
detection and fault rectiNcation.
Details on data transfer can be found in the data
protection information for the Mercedes me con-
nect services. These can be found at: http://
www.mercedes.me under "My Mercedes me
account", "Terms of use".
% The scope of the data transmitted depends on
t

he vehicle model and equipment. For techni-
cal reasons, not all data is available at all
times. Engine compartment
Active bonnet (pedestrian protection)
Operation of the active bonnet (pedestrian protec-
tion)
In cer

tain accident situations, the actuation of the
active bonnet reduces the risk of injury to pedes-
trians. The rear area of the bonnet is raised by
approximately 80 mm.
Aser being triggered, the active bonnet remains in
the raised position. Limited visibility due to the
raised bonnet cannot be ruled out.
Aser the active bonnet has been actuated, pedes-
trian protection may be limited.
Have the full functionality of the active bonnet
restored immediately in a qualiNed specialist
workshop.
If necessary, adjust your seat position and drive
carefully to a qualiNed specialist workshop. If a
safe continued journey is not possible, contact a
qualiNed specialist workshop. 428
Maintenance and care

Opening and closing the bonnet
&
DANGER Risk of f atal injuries when carry-
ing out maintenance work during the
charging process
During the charging process, the high-voltage
on-boar
d electrical system is under high volt-
age. 
Do not perform any maintenance work
dur

ing the charging process. &
WARNING Risk of accident due t
o driving
with the bonnet unlocked
The bonnet may open and block your view. 
Never release the bonnet when driving. 
Before every trip, ensure that the engine
bonne

t is locked. &
WARNING Risk of accident and injur
y
when opening and closing the bonnet
The bonnet may suddenly drop into the end
position. There is a risk of injury for anyone in the
engine bonne

t's range of movement. 
Do not open or close the bonnet if there
is a per

son in the bonnet's range of
movement. &
WARNING Risk of bur
ns when opening the
bonnet
If you open the bonnet in the event of an over-
heat
ed engine or Nre in the engine compart-
ment, the following situations may occur:
= You may come into contact with hot gases.
= You may come into contact with other
escaping hot operating Ouids. 
Before opening the bonnet, allow the
engine t
o cool down. 
In the event of a Nr
e in the engine com-
partment, keep the bonnet closed and
call the Nre service. &
WARNING Risk of injur
y due to moving
parts
Components in the engine compartment may
continue t
o run or start unexpectedly even
when the drive system is switched oM.
Observe the following if you must open the
bonnet: 
Switch oM t
he vehicle. 
Never touch the danger zones surround-
ing mo

ving components, e.g. the rotation
area of the fan. 
Remove jewellery and watches. 
Keep items of clothing and hair away
fr
om moving parts. &
WARNING Risk of injur
y from touching
components under voltage
The ignition system and the fuel injection sys-
t
em operate at high voltage. You could receive
an electric shock. Maintenance and care
429


Never touch ignition system or fuel injec-
tion sy
stem components when the vehi-
cle is switched on. The live components include the following, for
e

xample:
= Ignition coils
= Fuel injectors
= Electric lines to the ignition coils and the fuel
injectors &
WARNING Risk of bur
ns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
par
tment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system. 
Allow the engine to cool down and only
t
ouch component parts described in the
following. &
WARNING Risk of injur
y from using the
windscreen wipers when the bonnet is
open
If the windscreen wipers start moving when
t
he bonnet is open, you could be trapped by
the wiper linkage. 
Always switch oM t
he windscreen wipers
and the vehicle Nrst if you need to open
the bonnet. Opening the bonnet

Pull on handle 1 twice.
The bonne
t will be released and open slightly. 
Then lis t
he bonnet by hand. 430
Maintenance and care

Closing the bonnet
* NOTE Damag e to the bonnet If the bonnet is closed manually, there is a risk
of dents. 
Do not close the bonnet manually. 
Lower the bonnet to a height of around 20 cm
and t
hen allow it to fall, applying a little force
as you let it go. 
If the bonnet can still be lised slightl
y, open
the bonnet again and close it with a little more
force until it engages correctly. Engine oil
Checking the engine oil level using the driver's
displa

y
Requirements: = The engine has been warmed up.
= The vehicle is parked on a level surface.
= The engine is running at idle speed.
= The bonnet is closed. Determining the engine oil level can take up to
30 minut

es with a normal driving style and even
longer with an active driving style.
Driver's display:
4 Service
The engine oil level is shown.
One of the following messages will appear on the
driver's display:
= Engine oil level Measuring now


Allow the engine to cool down and only
t ouch component parts described in the
following. &
WARNING Risk of Nr
e and injury from
engine oil
If engine oil comes into contact with hot com-
ponent par
ts in the engine compartment, it
may ignite. 
Make sure that no engine oil is spilled
ne
xt to the Nller opening. 
Allow the engine to cool oM and t
hor-
oughly clean the engine oil from compo-
nent parts before starting the vehicle. *
NOTE Engine damag
e caused by an incor-
rect oil Nlter, incorrect oil or additives 
Do not use engine oils or oil Nlt
ers which
do not correspond to the speciNcations
explicitly prescribed for the service inter-
vals. 
Follow the instructions on the service
int

erval display for changing the engine oil and observe the prescribed change
int

ervals. 
Do not use additives. *
NOTE Damag
e caused by topping up too
much engine oil Too much engine oil can damage the engine or
t

he catalytic converter. 
Have excess engine oil removed at a
q

ualiNed specialist workshop. %
Depending on driving style, the vehicle con-
sumes up t
o 0.8 litre of oil per 1000 km. The
oil consumption may also be higher than this
when the vehicle is new or if you frequently
drive at high engine speeds.
% Depending on the engine, the cap may be
locat

ed in diMerent positions in the engine
compartment. 
Turn cap 1 anti-cloc
kwise and remove it. 
Top up the engine oil. 
Replace cap 1 and tur
n it clockwise until it
engages. 
Check the oil level again (  pag
e 431).432
Maintenance and care

Checking the coolant level
&
WARNING Risk of bur ns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
par
tment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system. 
Allow the engine to cool down and only
t
ouch component parts described in the
following. &
WARNING Risk of scalding fr
om hot cool-
ant
If you open the cap, you could be scalded. 
Let the motor cool down before opening
t
he cap. 
When opening the cap, wear protective
glo

ves and safety glasses. 
Open the cap slowly to release pressure. 
Have the coolant checked or r
eNlled only at a
qualiNed specialist workshop. Topping up the windscreen washer system
&
WARNING Risk of injur
y due to moving
parts
Components in the engine compartment may
continue t
o run or start unexpectedly even
when the drive system is switched oM.
Observe the following if you must open the
bonnet: 
Switch oM t
he vehicle. 
Never touch the danger zones surround-
ing mo

ving components, e.g. the rotation
area of the fan. 
Remove jewellery and watches. 
Keep items of clothing and hair away
fr
om moving parts. &
WARNING Risk of bur
ns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
par
tment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system. 
Allow the engine to cool down and only
t
ouch component parts described in the
following. &
WARNING !


Remove cap 1 b y the tab.
Top up the washer Ouid.
% Further information about the windscreen
w

asher Ouid ( page 497) Keeping the air/water duct free

Keep the area between the bonnet and the
windscr
een free of deposits, e.g. ice, snow or
leaves. Cleaning and care
Information on washing the vehicle in a car wash
&
WARNING Risk of an accident due t
o
reduced braking power aser washing the
vehicle
Braking ePciency is r
educed aser washing the
vehicle. 
Aser t
he vehicle has been washed, brake
carefully while paying attention to the
traPc conditions until braking power has
been fully restored. *
NOTE Damag
e from automatic braking If one of the following functions is activated,
t
he vehicle brakes automatically in certain sit-
uations:
= Active Brake Assist
= Active Distance Assist DISTRONIC
= HOLD function
= Active Parking Assist
To avoid damage to the vehicle, deactivate
these systems in the following or similar situa-
tions: 
During towing. 
In a car wash. *
NOTE Damag
e due to unsuitable car wash 
Before driving into a car wash make sure
t

hat the car wash is suitable for the vehi-
cle dimensions. 434
Maintenance and care


Ensure there is suPcient g round clear-
ance between the underbody and the
guide rails of the car wash. 
Ensure that the clearance width of the
car w

ash, in particular the width of the
guide rails, is suPcient. To avoid damage to your vehicle when using a car
w
ash, ensure the following beforehand:
= Active Distance Assist DISTRONIC is deactiva-
ted.
= The HOLD function is switched oM.
= The 360° camera or the reversing camera is
switched oM.
= The vehicle is locked and the door handles are
retracted.
= The side windows and sliding sunroof are com-
pletely closed.
= The outside mirrors are folded in.
= The blower for the ventilation and heating is
switched oM.
= The windscreen wiper switch is in position g.=
The k
ey is at a minimum distance of 6 m away
from the vehicle. Otherwise, the boot lid or a
door could open unintentionally.
= For car washes with a conveyor system:
- Neutral i is engaged.
- The vehicle is locked from the inside.
= Do not make any hand movements in the area
of the overhead control panel or deactivate
( page 368) the Sliding sunroof and roller
sunblind option in the settings for the MBUX
interior assistant.
% If, aser t
he car wash, you remove the wax
from the windscreen and wiper rubbers, this
will prevent smearing and reduce wiper noise.
Automatic car wash mode
In car w
ash mode, the vehicle is prepared for driv-
ing into an automatic car wash. Car wash mode
can be activated at a speed of up to 20 km/h
(  page 436). When car wash mode is activated, the
Car wash
mode active messag
e will appear on the driver's
display. The following adjustments will be made:
= To prevent the windscreen washer system
from starting up automatically, the rain sensor
will be deactivated.
= The servo opening system for the door han-
dles will be deactivated.
= Parking Assist PARKTRONIC will be deactiva-
ted.
= Vehicles with 360° camera: the front image
will be activated aser approximately eight sec-
onds.
= Vehicles with HANDS-FREE ACCESS: kick rec-
ognition will be deactivated.
If one of the settings cannot be selected, this will
be shown by a next to the respective set-
ting.
Pressing Switch off will end car wash mode.
Above a speed of 20 km/h car wash mode will be
deactivated automatically.
You can also switch oM the car wash mode via the
MBUX multimedia system ( page 436). Maintenance and care
435

The following settings will be reset when car wash
mode is deactiv
ated:
= The rain sensor will be activated.
= The servo opening system for the door han-
dles will be activated.
= Parking Assist PARKTRONIC will be reset to
the previously selected setting.
= Vehicles with 360° camera: the front image
will be deactivated at speeds above 18 km/h.
= Vehicles with HANDS-FREE ACCESS: kick rec-
ognition will be activated. Activating/deactivating automatic car wash mode
Requirements:
= The v

ehicle is stationary.
= The vehicle is switched on.
Multimedia system: 4 © 5
Settings 5
Vehicle 5
Driving
Activating automatic car wash mode 
Select Car wash mode . 
Select Activate .
If one of the settings cannot be selected, this is
sho
wn by a next to the respective setting.
% For an overview of the settings made when
activ
ating automatic car wash mode
(  page 434).
Deactivating automatic car wash mode 
Select Deactivate.
The aut
omatic car wash settings are reset.
% The automatic car wash mode is automatically
deactiv

ated as soon as a speed of 20 km/h is
exceeded. Information on using a high-pressure cleaner
&
WARNING Risk of an accident when using
high-pr
essure cleaners with round-spray
nozzles
The water jet can cause externally invisible
damag
e.
Components damaged in this way may unex-
pectedly fail. 
Do not use a high-pressure cleaner with
r

ound-spray nozzles. 
Have damaged tyres or chassis parts
r

eplaced immediately. To avoid damage to your vehicle, observe the fol-
lo
wing when using a high-pressure cleaner:
= The key is at a minimum distance of 3 m away
from the vehicle. Otherwise the boot lid or a
door could open unintentionally.
= Maintain a distance of at least 30 cm to the
vehicle.
= Vehicles with decorative foil: Parts of your
vehicle are covered with a decorative foil.
Maintain a distance of at least 70 cm between
the foil-covered parts of the vehicle and the
nozzle of the high-pressure cleaner. Move the
high-pressure cleaner nozzle around whilst
cleaning. The water temperature of the high-
pressure cleaner must not exceed 60°C.
= Observe the information on the correct dis-
tance in the equipment manufacturer's opera-
tor manual. 436
Maintenance and care

=
Do no t direct the nozzle of the high-pressure
cleaner directly at sensitive parts, e.g. tyres,
gaps, electrical component parts, batteries,
illuminants and louvres. Washing the vehicle by hand
*
NOTE Engine damag
e due to water ingress 
Take care not to point the water jet
dir

ectly towards the air inlet grille below
the bonnet. Observe the relevant legal requirements (e.g. in
some countr
ies, washing by hand is permitted
only in specially designated wash bays). 
Use a mild cleaning agent (e.g. car shampoo). 
Wash the vehicle with lukewarm water using a
sos car spong

e. When doing so, do not
expose the vehicle to direct sunlight. 
Carefully hose the vehicle oM wit
h water and
dry using a chamois.
% Observe the notes on the care of car parts
( pag

e 438). Notes on paintwork/matt
Nnish paintw
ork care To avoid damaging the paintwork and interfering
wit

h the driving assistance systems, please
observe the following notes:
Paint
= Insect remains: Soak with insect remover and
rinse oM the treated areas aserwards.
= Bird droppings: Soak with water and rinse oM
aserwards.
= Tree resin, oils, fuels and greases: remove by
rubbing gently with a cloth soaked in petro-
leum ether or lighter Ouid.
= Coolant and brake Ouid remove with a damp
cloth and clean water.
= Tar stains: use tar remover.
= Wax: use silicone remover.
= Do not attach stickers, Nlms or similar materi-
als. Only have Nlm attached to the bumper at
a qualiNed specialist workshop.
= Remove dirt immediately, where possible. Matt Nnish
=
Onl

y use care products approved for
Mercedes-Benz.
= Do not attach stickers, Nlms or similar materi-
als. Only have Nlm attached to the bumper at
a qualiNed specialist workshop.
= Do not polish the vehicle and light-alloy
wheels.
= Only use car washes that correspond to the
latest engineering standards.
= Do not use car wash programmes with a Nnal
hot wax treatment.
= Do not use paint cleaners, buPng or polishing
products, gloss preservers, e.g. wax.
In the event of paintwork damage:
= Always have paintwork repairs carried out at a
qualiNed specialist workshop.
= Make sure the radar sensors function
( page 264). Maintenance and care
437