2015 MERCEDES-BENZ E-CLASS SALOON Owners Manual

Display messages
Possible causes/consequences and
M
MSolutions N Saloon
:the boo tlid is open.
X Clos ethe boo tlid. A Estate: th
etailgat eisopen.
G WARNING
Whe nthe engin eisrunning ,exhaus tgase scan ente rthe vehicle
interio rifthetailgat eisopen.
There is ariskofp oisoning.
X Clos ethe tailgate. Mor
? The bonne
tisopen.Aw arnin gtonea lso sounds.
G WARNING
The open bonne tmay then bloc kyour vie wwhen th evehicl eisin
motion.
There is ariskofana ccident.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Clos ethe bonnet. Active bonnet mal‐ Active bonnet mal‐
function See Own‐ function See Own‐
er'
sM anual
er' sM anual The active bonne
t(pedestrian protection )isnotactive due to a
malfunction or because it has already been triggered.
X Consult aqualified specialist workshop. C At leas
tone doo riso pen.Aw arnin gtonea lso sounds.
X Clos eall doors. _
Rea
rl efts eat
Rea rl efts eat
backrest not backrest not
locked locked orRear right
Rea rr ight
sea tb ackrest not
sea tb ackrest not
locked
locked Saloon wit
hthrough-loading facilit yint he rear compartment:
The backrest in th erear is no tengage dont heleft-han dand/or
right-hand side .Awarnin gtonea lso sounds.
X Push th ebackrest bac kuntil it engages. 326
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions j
Check trailer Check trailer
hitch lock hitch lock The trailer to
whitch is no tcorrectly engaged.
Aw arnin gtonea lso sounds.
G WARNING
If th eball couplin gisnotengaged, th etrailer may come loose.
There is ariskofana ccident.
X Stop th evehicl eimmediately, payin gattention to roa dand traf-
fic conditions, and switch of fthe engine.
X Apply th eparkin gbrake.
X Engage th etrailer coupling's ball couplin gintheendp osition
(Y page 268). &
inoperative Bat‐ inoperative Bat‐
ter
yl ow
ter yl ow th
eo n-bo ardv oltag eistoolow The auxiliar yheatin ghas switched
itself of forcannotbes witched on (Y page 168).
X Drive fo raconsid erable distance.
The battery charges. The auxiliar yheatin gisoperational again as
soo nast heon-boar delectrica lsystem voltag eissufficient. &
inoperative inoperative
Refuel
Refuel
vehicle
vehicle There is to
olittl efue lint hefuel tank. The auxiliar yheatin gcannot
be switched on (Y page 168).
X Refuel at th eneares tfillin gstation. &
inoperative See inoperative See
Owner'
sMan.
Owner' sMan. The auxiliar
yheatin gistemporarily malfunctionin gorfaulty.
X Whe nthe vehicl eisonal evel surfac eand th eengineh as cooled
down ,makeuptof oura ttempts to switch on th eauxiliar yheat-
ing, waitin gseveral minute sbetween eac hattempt
(Y page 168).
X If th eauxiliar yheatin gdoes no tswitch on ,consu ltaq ualified
specialist workshop. Ð
Power Power
steering
steering mal‐
mal‐
function See Own‐
function See Own‐
er' sM anual
er' sM anual The powe
rsteerin gassistanc eisfaulty.
Aw arnin gtonea lso sounds.
G WARNING
You will need to use mor eforce to steer.
There is ariskofana ccident.
X Chec kwhether you are able to apply th eextra forcerequired.
X If you ar eabletos teer safely: carefully drive on to aqualified
specialist workshop.
X If you ar eunable to steer safely: do notdrive on .Contac tthe
neares tqualified specialist workshop. Display
messages
327On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions Telephone No ser‐
Telephone No ser‐
vice vice Your vehicl
eisoutside th enetwo rk provider' stransmitter/
receiver range.
X Wait until th emobile phone operational readiness symbol
appears in th emultifunction display. ¥
Top Top
up
upwasher
washer fluid
fluid The washer flui
dlevel in th ewasher flui dreservoir has dropped
belo wthe minimum.
X Top up th ewasher flui d(Ypage 383). Key
Display messages
Possible causes/consequences and
M
MSolutions Â
Key doe
snot
Key doe snot
belong to vehicle belong to vehicle You hav
eput th ewrong ke yint he ignition lock.
X Use th ecorrect key. Â
Replac
ekey
Replac ekey The ke
yneeds to be replaced.
X Visit aqualified specialist workshop. Â
Change key batter‐ Change key batter‐
ies ies The battery of th
eKEYLESS-GO ke yisdischarged.
X Replac ethe batterie s(Ypage 97). Â
Key not detected Key not detected
(re
dd isplay message) The KEYLESS-GO ke
yisnotin th evehicle.
Aw arnin gtonea lso sounds.
If th eengineiss witched off, you can no longer loc kthe vehicle
centrall yorstart th eengine.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Locate th eKEYLESS-GO key. As
tron gs ource of radi owave sisc ausin ginterfe rence, this means
that th eKEYLESS-GO ke yisnotrecognised when th eengineis
running.
Aw arnin gtonea lso sounds.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Inser tthe keyintot he ignition loc kand bring into ke ymode. 328
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions Â
Key not detected Key not detected
(whit
edisplay mes-
sage) The KEYLESS-GO ke
ycanno tbed etecte datpresent.
X Change th elocation of th ekeywit hthe KEYLESS-GO functions
in th evehicle.
If th eKEYLESS-GO ke yisstill no tdetected:
X Operat ethe vehicl ewitht he keyint he ignition loc kifneces sary. Â
Remove starting Remove starting
button
,then
button ,then
insert key insert key The KEYLESS-GO ke
yisnotcontinually detected.
KEYLESS-GO is temporarily malfunctionin gorisdefective. Awarn-
in gt onea lso sounds.
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position.
X Visit aqualified specialist workshop. Warning and indicator lamps in th
einstrument cluster General notes
Some systems carry out aself-diagnosi swhen th eignition is switched on .Several warnin gand
indicato rlamp scan thereby temporarily ligh tuporflash. This behaviour is non-critical. These
warnin gand indicato rlamp sonlyi nd icate amalfunction if they ligh tuporflasha fter th eengine
is started or during ajou rney. Safety
Sea tbelts Problem
Possible causes/consequences and
M
MSolutions ü
Only fo
rcertai ncoun-
tries: th ered seat belt
warnin glamp lights up
fo r6s econds after the
engin estarts. The seat belt warnin
glamp reminds th edriver and fron tpassenger
to faste ntheir seat belts.
X Faste nyour seat belt (Y page 48). ü
Only fo
rcertai ncoun-
tries: th ered seat belt
warnin glamp lights up
after th eengines tarts.
In addition ,awarning
tone sounds fo rupto
6s econds. The driver's seat belt is no
tfastened.
X Faste nyour seat belt (Y page 48).
The warnin gtonec eases. Wa
rning an dindicator la mpsint he instrument cluster
329On-board computera nd displays Z

Problem
Possible causes/consequences and
M
MSolutions 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 passenger has not fastened their seat belt.
X Fasten your seat belt (Y page 48).
The warning lamp goes out. There are objectsont
he front-passenger seat.
X Remove the objectsf rom the front-passenger seat and stow
them in asecure 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 not fastened their seat belt. At the
same time, you are driving faster than 25 km/ho rhave briefly
driven faster than 25 km/h.
X Fasten your seat belt (Y page 48).
The warning lamp goes out and the intermittentw arning tone
ceases. There are objectsont
he front-passenger seat. At the same time,
you are driving faster than 25 km/ho rhave briefly driven faster
than 25 km/h.
X Remove th eobjects from th efront-pa ssenger seat and stow
them in asecure place.
The warnin glamp goe sout and th eintermitten twarnin gtone
ceases. Safet
ysystems Problem
Possible causes/consequences and
M MSolutions J
The yellow brak
esys-
te mw arnin glamp
lights up while the
engin eisrunning. G
WARNING
The brak esystem is malfunctionin gand th ebrakin gcharacteris-
tics may be affected.
There is ariskofana ccident.
X If th emultifunction display shows adisplay message ,please
observ ethis.
X Drive on carefully.
X Consult aqualified specialist workshop. J
The red brak
esystem
warnin glamp comes on
while th evehicl eis
moving. Awarnin gtone
also sounds. You are drivin
gwitht he parkin gbrak eapplied.
X Releas ethe parkin gbrake.
The warnin glamp goe sout and th ewarnin gtonec eases. 330
Wa
rning an dindicator la mpsint he instrument clusterOn-board computera nd displays

Problem
Possible causes/consequences and
M
MSolutions J
The red brake system
warning lamp is lit while
the engine is running. A
warning tone also
sounds. G
WARNING
The brake boosting effect is malfunctionin gand the braking char-
acteristic smay be affected.
There is arisk 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 Safeguard the vehicle against rolling away (Y page 205).
X Consult aqualified specialist workshop.
X Observe the additional display messages in the multifunction
display. J
The red brake system
warning lamp is lit while
the engine is running. A
warning tone also
sounds. G
WARNING
There is insufficient brake fluid in the brake fluid reservoir.
Braking efficiency may be impaired.
There is arisk 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 Safeguard the vehicle against rolling away (Y page 205).
X Do not top up the brake fluid. Topping up will not rectify the fault.
X Consult aqualified specialist workshop.
X Observe the additional display messages in the multifunction
display. Warning and indicator lampsint
he instrument cluster
331On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions !
The yellowA
BS warning
lamp is lit while the
engine is running. ABS (Anti-lock Braking System) has been deactivated due to a
fault. Therefore, BAS (Brake Assist System), BAS PLUS with Cross-
Traffic Assist, COLLISION PREVENTION ASSIST PLUS, ESP ®
(Elec-
tronic Stability Program), PRE‑ SAFE®
,P RE‑SAFE ®
PLUS,
PRE‑SAFE ®
Brake, the HOLD function, hill start assist, ESP ®
trailer
stabilisation and the adaptive brake lights, for example, are also
deactivated.
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 may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Consult aqualified specialist workshop.
If the ABS control unit is faulty, there is also apossibility that other
systems, such as the navigation system or the automatic trans-
mission, will be unavailable. 332
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Problem
Possible causes/consequences and
M
MSolutions !
The yellowA
BS warning
lamp is lit while the
engine is running. A
warning tone also
sounds. EBD is unavailable due to
amalfunction .Therefore, ABS,B AS,BAS
PLUS with Cross-Traffic Assist, COLLISION PREVENTION ASSIST
PLUS, ESP ®
,P RE-SAFE ®
,P RE-SAFE ®
PLUS, PRE‑SAFE ®
Brake, the
HOLD function, hill start assist, ESP ®
trailer stabilisation and the
adaptive brake lights, for example, are also unavailable.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec-ted. The braking distance may increase in an emergency braking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Consult aqualified specialist workshop. J
֌!
The red brake warning
lamp, the yellow ESP ®
and ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running. ABS and ESP
®
are unavailabl edue to afault. Therefore, ABS,B AS,
BAS PLUS with Cross-Traffic Assist ,COLLISION PREVENTION
ASSIST PLUS, EBD,P RE-SAFE®
,P RE-SAFE ®
PLUS, PRE‑SA FE®
Brake, the HOLD function, hill start assist, ESP ®
trailer stabilisa-
tion and the adaptive brake lights, for example, are also unavail-
able.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the functions listed above. The fronta nd rear wheels could therefore
lock, for example, if you brake hard.
The steerability and braking characteristics may be severely affec- ted. The braking distanc emay increase in an emergenc ybraking
situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Consult aqualified specialist workshop. Warning and indicator lampsint
he instrument cluster
333On-board computer and displays Z