engine MERCEDES-BENZ E-CLASS SALOON 2020 Manual Online

Display messages
Possible causes/consequences and M
MSolutions #
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. #
Close the boot lid.
_ Rear left seat backrest not
locked (Example) *T
he seat backrest of the cor responding seat is not engaged. #
Foldthe seat backrest back until it engages. Display messages and
warning/indicator lamps 383

Display messages
Possible causes/consequences and M
MSolutions
¥ 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 306). 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 (/ page155).
+
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 305). #
Have the engine cooling sy stem checked at a qualified specialist workshop. 384
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
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. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine 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 385

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.
¸ 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 Park (P) when
vehicle is stationary *
Pa rk position jcan be engaged only when theve hicle is stationar y. #
Tostop, depress the brake pedal. 386
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Shift the transmission topark position jwhile theve hicle is stationar y.
Apply brake to deselect
Park (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.
To shift out of P or N,
depress brake and start
engine *
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 select D or R *
You ha veattem ptedto select transmission position hork. #
Depress the brake pedal. #
Select transmission position hork.
Apply brake to select R *
You ha veattem ptedto select transmission position k. #
Depress the brake pedal. #
Select transmission position k.
Risk of vehicle rolling
Driver door open and trans-
mission not in P *
The driver's door is not fully closed and transmission position h,kor neutral iis selected. #
Select park position jwhen switching off theve hicle. Display messages and
warning/indicator lamps 387

Display messages
Possible causes/consequences and M
MSolutions
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
he auxiliary batteryforth e transmission is no longer being charge d. #
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. Brakes
Display messages
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 (/ page184).
If it is not possible toapply the electric parking brake: #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 389

Display messages
Possible causes/consequences and M
MSolutions
É Vehicle rising *Y
our vehicle is adjusting tothe le velyo u ha veselected.
É Vehicle rising Please wait *T
hevehicle le vel is too lo w.The vehicle will be raised tothe selected vehicle le vel. #
Wait until the display message disappears before pulling away.
É Please reduce speed *Y
ou are driving toofast forth e selected vehicle le vel. #
Toadjust theve hicle le vel,yo u must not drive at speeds greaterth an 60 km/h. #
Toadjust theve hicle le vel during trailer operation, you must not drive at speeds greaterth an 30 km/h.
Active Parking Assist and
PARKTRONIC inoperative
See Owner's Manual *A
ctive Parking Assist and Parking Assist PARKTRONIC are malfunctioning.
Once the cause of the problem is no longer present, the sy stem will be available again. #
Continue driving while paying attention totheve hicle's sur roundings.
or #
Stop theve hicle in accordance with the tra ffic conditions and restart the engine. #
Ifth e display message still appears, consult a qualified specialist workshop. 400
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
é ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIST is malfunctioning. #
Consult a qualified specialist workshop.
é ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIST has de tected fatigue or an increasing la ckof concentration on the part of the driver
(/ page 230). #
If necessar y,take a break.
Traffic Sign Assist currently
unavailable See Owner's
Manual *T
raffic Sign Assist is temp orarily una vailable.
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
Traffic Sign Assist inopera-
tive *T
raffic Sign Assist is malfunctioning. #
Stop theve hicle in accordance with the tra ffic conditions and restart the engine. #
Ifth e display message still appears, consult a qualified specialist workshop. Display messages and
warning/indicator lamps 401

Display messages
Possible causes/consequences and M
MSolutions
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (/ page 233).
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Consult a qualified specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you es tablish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assi stistemp orarily una vailable.
The sy stem limits ha vebeen reached (/ page 233).
Once the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or 402
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assi stis malfunctioning. #
Consult a qualified specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you es tablish the electrical connection tothe trailer, Active Blind Spot Assi stwill be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page 236).
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Drive on.
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 403