2020 MERCEDES-BENZ S-CLASS SALOON LONG Owners Manual

Engine
Display messages
Possible causes/consequences and M
MSolutions
To switch off the engine,
press the Start/Stop but-
ton for at least 3 seconds
or 3 times. *Y
ou ha vepressed thest art/ stop button while theve hicle is in motion. #
Information about switching off the engine while driving (/ page189).
+
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswith insuf ficient coolant. #
Add coolant (/ page 352). #
Have the engine cooling sy stem checked at a qualified specialist workshop.
ÿ
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. 51 0
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions &
WARNING Risk of bu rns when opening the bonn et
If yo u open the bonn etwhen the engine has overheated or when there is a fire inthe engine compartment, the
fo llowing situations may occur:
R You could come into contact with hot gases.
R You could come into contact with other hot, escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120°C.
ÿ *T
hefan mo tor is defective. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 511

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

Display messages
Possible causes/consequences and M
MSolutions #
Shift the transmission topark position jwhen theve hicle is stationar y.
Apply brake to deselect P
position *
Yo u ha veattem ptedto shift the transmission out of park position jand into ano ther transmission position. #
Depress the brake pedal. #
Select transmission position h,kor neutral i.
Apply brake and start
engine to shift out of P or N *
Yo u ha veattem ptedto shift the transmission out of park position jor neutral iand into ano ther transmission
position. #
Depress the brake pedal. #
Start the engine. #
Change the transmission position.
Apply brake to engage D or
R *
You ha veattem ptedto select transmission position hork. #
Depress the brake pedal. #
Select transmission position hork.
Apply brake to engage R *
You ha veattem ptedto select transmission position k. #
Depress the brake pedal. #
Select transmission position k.
Apply parking brake to
park Visit workshop *
A malfunction has occur red in the emer gency po wer supp lyto park position j. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 513

Display messages
Possible causes/consequences and M
MSolutions #
Untilthen, alw ays select park position jmanually before you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake.
Risk of vehicle rolling away
Driver's door open Trans-
mission not in P *
The driver's door is not fully closed and transmission position h,kor neutral iis selected.
The vehicle may rollaw ay. #
Select pa rkposition jwhen switching off theve hicle.
Risk of vehicle rolling away
Apply parking brake to park *
The transmission is malfunctioning. Park position jcann otbe selected. #
Park theve hicle safely. #
Use the electric parking brake tosecure theve hicle against rolling away. #
On gradients, turn the front wheels so that theve hicle will rollto wa rdsth eke rb if it starts moving.
Risk of vehicle rolling away
N activated manually No
automatic switch to P *
While theve hicle was at a standstill or driving at very low speed, neut rali was engaged with the engine running
or the ignition switched on.
* NO
TEDama getotheve hicle due toitro lling away When
the ignition is being switched off or the driver's door opened, automatic engagement of park position j
is deactivated.
The vehicle may rollaw ay. #
Beready tobrake. #
Do not lea vetheve hicle unattended. 514
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Depress the brake pedal until theve hicle is stationar y. #
Engage pa rkposition jwhen theve hicle is stationary with the brake pedal depressed. #
Tocontinue driving wi th the brake pedal depressed, select transmission position hork.
N automatically activated
Please engage transmis-
sion position again *
Neutral iwas automatically engaged when theve hicle wasro lling or being driven.
% When you open the driver's door in neutral i, park positionjwill be engaged automaticall y. #
Dep ress the brake pedal until theve hicle comes toast andstill. #
Engage park position jwhen theve hicle is stationary with the brake pedal depressed. #
Tocontinue driving wi th the brake pedal depressed, select transmission position hork.
Reversing not poss. Con-
sult workshop *
The transmission is malfunctioning. The transmission position kcann otbe selected. #
Consult a qualified specialist workshop.
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shifts toneutral iautomatically. #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Depress the brake pedal. #
Enga gepark position j. #
Consult a qualified specialist workshop.
Consult workshop without
changing the transmission
position *T
he transmission is malfunctioning. It is no longer possible tochange the transmission position. #
If transmission position his selected, consult a qualified specialist workshop and do not change the transmis‐
sion position. Display messages and
warning/indicator lamps 515

Display messages
Possible causes/consequences and M
MSolutions #
For all other transmission positions, park theve hicle safely. #
Consult a qualified specialist workshop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away may be temp orarily impaired or not possible. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Lea vethe engine running. #
Wait until the display message disappears before pulling away.
Auxiliary battery malfunc-
tion *T
here is a malfunction in the auxiliary batter y. #
Consult a qualified specialist workshop. #
Untilthen, alw ays select park position jmanually before you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake. 516
Displaymessa ges and warning/indicator lamps

Brakes
Displ
aymessages
Possible causes/consequences and M
MSolutions
! Parking brake See Owner's
Manual *
The yellow ! indicator lamp is lit. The elect ric pa rking brake is malfunctioning.
To appl y: #
Switch the ignition off and switch it back on. #
Apply the electric parking brake manually (/ page217).
If it is not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
* The yellow ! indicator lamp and there d! indicator lamp are lit. The elect ric pa rking brake is malfunction‐
ing.
To release: #
Swit chthe ignition off and switch it back on. #
Release the electric parking brake manually (/ page217).
or #
Release the electric parking brake automatically (/ page216).
If it is still not possible torelease the electric parking brake: #
Do not continue driving. Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 517