2015 MERCEDES-BENZ E-CLASS SALOON lock

Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative See inoperative See
Owner'
sManual
Owner' sManual EB
D( electronic brak eforce distribution), ABS, ESP ®
,B AS ,the
HOLD function ,PRE-SAFE ®
,h ill start assist and ESP ®
trailer sta-
bilisation are no tavailable due to amalfunction.
The adaptive brak elights ,BAS PLU SwithC ross-Traffic Assist,
COLLISION PREVENTION ASSIST PLUS, PRE ‑SAFE®
PLU Sand
PRE ‑SAFE ®
Brake may also hav efailed.
In addition ,the ÷ ,å and! warnin glamp sligh tupint he
instrumen tcluster and awarnin gtones ounds.
G WARNING
The brak esystem continues to function normally, but without the
function slisted above. The fron tand rear wheels could therefore
lock, fo rexample, if you brak ehard.
The steerabilit yand brakin gcharacteristics may be severely affec-
ted. The brakin gdistanc emay increase in an emergenc ybraking
situation.
If ESP ®
is no toperational, ESP ®
is unable to stabilis ethe vehicle.
There is an increase ddanger of skiddin gand ris kofana ccident.
X Drive on carefully.
X Consult aqualified specialist workshop immediately. J
Brake immediately Brake immediately Am
alfunction has occurred while th eHOLDf unction is active.
or
Wit hthe HOLD function activated, you have:
R opened th edriver's doo rand release dthe seat belt or
R switched of fthe engine
At onem ay also soun datregular intervals. If you attemp ttolock
th ev ehicle, th etoneb ecome slouder.
You canno tstart th eengine.
X Payin gattention to th etraffic situation ,immediately depress the
brak epedal firmly and hold until th edisplay message disap-
pears.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
You can restar tthe engine. J
Releas
eparking
Releas eparking
brake brake You are drivin
gwitht he parkin gbrak eapplied. Awarnin gton ea lso
sounds.
X Releas ethe parkin gbrake. 302
Display
messagesOn-boardcomputer an ddisplays

Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top Top
up
upcoolant
coolant See
See
Owner' sManual
Owner' sManual The coolant leve
listoolow.
! Avoid making lon
gjou rneys with to olittle coolant in th eengine
cooling system. The engin ewill otherwise be damaged.
X Top up th ecoolant ,observing th ewarning note sbefore doin gso
( Y page 382).
X If th ecoolant needs toppin gupmoreo ften than usual, have the
engin ecoolant system checked at aqualifie dspecialist work-
shop. ? The fan motor is faulty.
X If th ecoolant temperatur eisbelow 12 0†,you can continue
driving to th eneares tqualifie dspecialist workshop.
X Avoid putting th eengineu nde rheav yload as you do so, e.g.
driving in mountainous terrain and stop-start traffic. ?
Coolan
tStopv ehi‐
Coolan tStopv ehi‐
cle Switch engine cle Switch engine
off off The coolant is to
ohot.
Aw arning tone also sounds.
G WARNING
Never driv ewith an overheate dengine. Drivin gwhen your engine
is overheate dcan caus esom efluids whic hmay have leaked into
th ee nginec ompartmen ttocatch fire.
In addition ,steam from an overheate denginec an caus eserious
burns, whic hcan occur jus tbyopening th ebonnet.
Ther eisar isk of injury.
X Stop th evehicle immediately, paying attentio ntoroad and traf-
fic conditions, and switch off th eengine.
X Safeguard th evehicle against rolling away (Y page 205).
X Wait until th eengineh as cooled down.
X Mak esure that th eair supply to th eenginer adiator is not
blocked, e.g .byfrozenslush.
X Do no tstart th eenginea gain until th edisplay message goes out
and th ecoolant temperatur eisbelow 12 0†.The engin emay
otherwise be damaged.
X Pay attentio ntothecoolant temperatur edisplay.
X If th etem peratur eincreases again ,consult aqualifie dspecialist
workshop immediately.
Under normal operatin gcondition sand with th especified coolant
level, th ecoolant temperatur emay rise to 12 0†. Displa
ymessages
311On-boardcomputer and displays Z

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

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

Problem
Possible causes/consequences and
M
MSolutions ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct,t
he airflow to the engine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 205).
X Leave the vehicle and keep asafe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 382).
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X Do not start the engine again until the coolant temperature is
below 120 †. The engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
Awarning tone
also sounds. The coolant temperature has exceeded 120 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartmen ttocatch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is arisk of injury.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 205).Warning and indicator lampsint
he instrument cluster
337On-board computer and displays Z