2012 MERCEDES-BENZ E-CLASS ESTATE warning
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Display messages Possible causes/consequences and
M Solutions
h
Tyre pressure Cau‐
tion Tyre malfunc‐
tion The tyre pressure in one or more tyres has dropped suddenly.
Aw
arning tone also sounds.
G WARNING
If you drive with a flat tyre, there is a ris kofthe following hazards:
R A flat tyre affects the ability to steer or brake the vehicle.
R You could lose control of the vehicle.
R Continued driving with a flat tyre will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 183).
X If there is a flat tyre, inspect the tyres (Y page 363).h
Tyre pressure
Check tyre(s) The tyre pressure in one or more tyres has dropped significantly.
G WARNING
With tyre pressures which are too low, there is a risk of the fol-
lowing hazards:
R the tyres may burst, especially as the load and vehicle speed
increase.
R they tyres may wear excessively and/or unevenly, which may
greatly impair tyre traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 183).
X If there is a flat tyre, inspect the tyres (Y page 363).
X Check the tyre pressure (Y page 386).
X If necessary, correct the tyre pressure. h
Please correct
tyre pressure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure difference between the wheels is too great.
X
Check the tyre pressures at the next opportunity
(Y page 386).
X If necessary, correct the tyre pressure. 292
Display messagesOn-board computer and displays
Page 297 of 457
Display messages Possible causes/consequences and
M Solutions
Risk of vehicle
rolling
Transmission not
in P Vehicles with DIRECT SELECT lever:
The driver's doo
ris open and the transmission is in position R,N
or D.
Aw arning tone also sounds.
X Shift the transmission to position P.
X Secure the vehicle against rolling away ( Ypage 183). Without changing
gear,
consult workshop Vehicles with DIRECT SELECT lever:
You canno
tchange the transmission position due to a malfunction.
Aw arning tone also sounds.
If transmission position Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,Nor Pis selected:
X Consult a qualified specialist workshop. Only select
position P when
vehicle is station‐
ary Vehicles with DIRECT SELECT lever:
The vehicle is moving.
X
Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Shift the transmission to position P.N Saloon: the boot lid is open.
X
Close the boot lid. A Estate: the tailgate is open.
G WARNING
When the engine is running, exhaust gases can enter the vehicle
interior if the tailgate is open.
There is a risk of poisoning.
X Close the tailgate. 294
Display messagesOn-board computer and displays
Page 298 of 457
Display messages Possible causes/consequences and
M Solutions
M
or? The bonne
tis open. Awarning tone also sounds.
G WARNING
The open bonne tmay then bloc kyour view when the vehicle is in
motion.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 183).
X Close the bonnet.
If the active bonnet (pedestrian protection) has been triggered:
X Reset the bonnet (Y page 344).
X Close the bonnet. Active bonnet mal‐
function See Own‐
er's Manual The active bonnet (pedestrian protection) is not active due to a
malfunction.
X
Visit a qualified specialist workshop. C At least one door is open.
Awarning tone also sounds.
X Close all doors. _
Rear left seat
backrest not
locked or
Rear right seat back‐
rest not locked Saloon with through-loading feature in the rear bench seat:
The backres
tinthe rear is not engaged on the left-hand and/or
right-hand side. Awarning tone also sounds.
X Push the backres tback until it engages. j
Check trailer
hitch lock The trailer tow hitch is no
tcorrectly engaged.
Aw arning tone also sounds.
X Stop the vehicle immediately, paying attentio ntoroad and traf-
fic conditions, and switch off the engine.
X Apply the parking brake.
X Allow the trailer tow hitch ball coupling to engage in the end
position (Y page 237). &
inoperative Bat‐
tery low The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on (Y page 151).
X Drive for a longer distance.
The battery is being charged. The auxiliary heating is operational
again as soon as the on-board electrical system voltage is suf-
ficient. Display messages
295On-board computer and displays Z
Page 299 of 457
Display messages Possible causes/consequences and
M Solutions
&
inoperative
Refuel
vehicle There is too little fuel in the fuel tank. The auxiliary heating cannot
be switched on (Y
page 151).
X Refuel at the neares tfilling station. &
inoperative See
Owner's Manual The auxiliary heating has a temporary malfunction or is faulty.
X
When the vehicle is on alevel surface and the engine has cooled
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
(Y page 151).
X If the auxiliary heating does not switch on, consult a qualified
specialist workshop. Ð
Power
steering mal‐
function See Own‐
er's Manual The power steering assistance is faulty.
Aw
arning tone also sounds.
G WARNING
You will need to use more force to steer.
There is a ris kofanaccident.
X Check whethe ryou are able to apply the extra force required.
X If you are able to steer safely: carefully drive on to a qualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop. Telephone No
service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Top
up washer fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Top up the washer fluid (Y page 349).296
Display messagesOn-board computer and displays
Page 301 of 457
Display messages Possible causes/consequences and
M Solutions
Â
Remove starting
button, then
insert key The KEYLESS-GO key is no
tcontinually detected.
KEYLESS-GO is temporarily malfunctioning or is defective. Awarn-
ing tone also sounds.
X Insert the key into the ignition lock and turn it to the desired
position.
X Visi taqualified specialist workshop. Â
Close doors to
lock vehicle At least one door is open.
Awarning tone also sounds.
X Close all doors and loc kthe vehicle again. Indicator and warning lamps in the
instrument cluster
Warning and indicator lamps over-
view
L Dipped-beam headlamps
(Ypage 126)
T Side lamps (Y page 127)
K Main-beam headlamps
(Ypage 129)
#! Turn signals (Y page 128)
R Rear foglamp (Y page 127)
ü Seat belts (Y page 299)
J Brakes (Ypage 300)
! ABS (Ypage 301)
ä ESP®
(Y page 302)
å ESP®
OFF (Y page 302)
M SPORT handling mode in AMG
vehicles (Ypage 303)
6 SRS (Ypage 304)
; Engine diagnostics
(Ypage 305)
8 Reserve fuel (Y page 305)
? Coolant (Ypage 305)
· Distance warning signal
(Ypage 307) %
Diesel engine: preglow
(Ypage 163)
h Tyre pressure monitor
(Ypage 308) 298
Indicator and warning lamps in the instrument clusterOn-board computer and displays
Page 302 of 457
Safety
Seat belts Problem Possible causes/consequences and
M Solutions
ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
for six seconds after
the engine starts. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 52).ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
after the engine starts.
In addition, a warning
tone sounds for up to
six seconds.
The driver's seat belt is not fastened.
X
Fasten your seat belt (Y page 52).
The warning tone ceases. ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed. The driver or front passenger has not fastened their seat belt.
X
Fasten your seat belt (Y page 52).
The warning lamp goes out. There are objects on the front-passenger seat.
X
Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out. ü
The red seat belt warn-
ing lamp flashes and an
intermittenta
udible
warning sounds. The driver or passenger has no
tfastened their seat belt .Atthe
same time, the car is being driven faster than 25 km/h or has been
briefly driven faster than 25 km/h.
X Fasten your seat belt (Y page 52).
The warning lamp goes out and the intermittent warning tone
ceases. There are objects on the front-passenger seat. At the same time,
you are driving faster than 25 km/h or have briefly driven faster
than 25 km/h.
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases. Indicator and warning lamps in the instrument cluster
299On-board computer and displays Z
Page 303 of 457
Safety systems
Problem Possible causes/consequences and
M Solutions
J
The yellow brake sys-
tem warning lamp
lights up while the
engine is running. G
WARNING
The brake system is malfunctioning and the braking characteris-
tics may be affected.
There is a risk of an accident.
X If the multifunction display shows a display message, please
observe this.
X Drive on carefully.
X Visit a qualified specialist workshop. J
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
G
WARNING
The brake boosting effect is malfunctioning and the braking char-
acteristics may be affected.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 183).
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. J
The red brake system
warning lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
There is insufficient brake fluid in the brake fluid reservoir.
G WARNING
The braking efficiency may be impaired.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 183).
X Do not top up the brake fluid. Topping up will not rectify the
fault.
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. 300
Indicator and warning lamps in the instrument clusterOn-board computer and displays
Page 304 of 457
Problem Possible causes/consequences and
M Solutions
!
The yellow ABS warning
lamp is lit while the
engine is running. ABS (Anti-lock Brake System) has been deactivated due to a fault.
For this reason, BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE-SAFE ®
,P RE-SAFE ®
Brake ,the HOLD func-
tion, hill start assist, the adaptive brake lights and ESP ®
trailer
stabilisation are also deactivated, for example.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will not be available. Indicator and warning lamps in the instrument cluster
301On-board computer and displays Z