2015 MERCEDES-BENZ E-CLASS SALOON sensor

Display messages
Possible causes/consequences and
M
MSolutions PRE-SAFE
PRE-SAFE
inoperative See inoperative See
Owner'
sManual
Owner' sManual Importan
tfunction sofPRE-SAFE ®
hav efailed. Al lother occupant
safet ysystems ,e.g.a irbags, remain available.
X Consult aqualified specialist workshop immediately. PRE-SAFE PRE-SAFE
Functions cur‐ Functions cur‐
rently rently
limited
limited See
See
Owner' sManual
Owner' sManual PRE
‑SAFE ®
PLU SorP RE‑SAFE ®
Brake is temporarily inoperative.
Possibl ecauses:
R thef unction is impaire ddue to heav yrain or snow
R ther ada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion soro ther source sofelectromagnetic radiation
R AM Gvehicles: ESP ®
is deactivated
R thes ystem is outside th eoperating temperature range
R theo n-bo ardv oltag eistoolow
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
PRE ‑SAFE ®
PLU Sand PRE ‑SAFE®
Brake are operational again.
If th edisplay message does no tdisappear:
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 Restart th eengine.
X AM Gvehicles: reactivat eESP®
(Y page 85). PRE-SAFE
PRE-SAFE
Functions limited Functions limited
See Owner'
sManual
See Owner' sManual PRE
‑SAFE ®
PLU SorP RE‑SAFE ®
Brake is unavailable due to amal-
function .BAS PLU SwithC ross-Traffic Assis tmay also hav efailed.
X Consult aqualified specialist workshop. 304
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions Radar sensors
Radar sensors
dirty See Owner's dirty See Owner's
Manual Manual At leas
tone of th efollowing drivin gsystems or drivin gsafet ysys-
tems is temporarily restricted or inoperative:
R COLLISION PREVENTION ASSIST PLUS
R PRE-SAFE ®
Brake
R PRE-SAFE ®
PLUS
R Active Lan eKeepin gAssist
R Active Blind Spot Assist
R DISTRONIC PLU SwithS teerin gAssista nd Stop&Go Pilot
If th erada rsensor system in fron tisdirty, Active Blind Spot Assist
will no tperform acourse-correcting brak eapplication.
Possibl ecauses:
R thes ensor sintheradiato rtrima nd/o rinthebumpers are dirty
R thef unction of th edrivin gsystem or drivin gsafet ysystem is
impaire ddue to heav yrain or snow
Aw arnin gtonea lso sounds.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.A lldrivin gsystems or drivin gsafet ysystems are opera-
tive again.
If th edisplay message does no tdisappear:
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 Switc hoffthee ngine.
X Clean th esensor s(Ypage 389) in th efollowing locations:
R in th eradiato rtrim
R in th efront bumper
R in th erear bumper, particularl yint he middle of th erear
bumper
X Restart th eengine.
The display message disappears. ü If this symbol appears in th
emultifunction display, aseat belt
tongue has been inserte dintoa rear seat belt buckle.
Further information on th estatu si nd icato rfor ther ear seat belts
(Y page 49). Display
messages
305On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions Vehicles wit
htrailer to whitch :af usem ay hav eblown.
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 Chec kthe fuses (Y page 411).
X If necessary, replac ethe blown fuse. Observ ethe warnin gnotes
as you do so.
If th edisplay message continues to be displayed:
X Consult aqualified specialist workshop. b
AUTO AUTO
lights
lights inoper‐
inoper‐
ative
ative The ligh
tsensor is faulty.
X Consult aqualified specialist workshop. b
Switch off lights Switch off lights The lights are still switched on when you leav
ethe vehicle. A
warnin gtonea lso sounds.
X Tur nthe ligh tswitch to Ã. Adaptive Highbeam
Adaptive Highbeam
Assist Plu
scur‐
Assist Plu scur‐
rently rently unavailable
unavailable
See Owner' sManual
See Owner' sManual Adaptive Highbeam Assis
tPlus is deactivated and temporarily
inoperative. Possibl ecauses:
R thew indscree nisdirty in th ecamera' sfield of vision
R visibility is impaire ddue to heav yrain ,sno worf og
X Clean th ewindscreen.
If th esystem detects that th ecamera is full yoperational again ,the
Adaptive
Adaptive Highbeam
HighbeamAssist
Assist Plus
Plusavailable
available again
againmessage
is displayed.
Adaptive Highbeam Assis tPlus is operational again. Adaptive Highbeam Adaptive Highbeam
Assist Assist
Plus
Plusinoper‐
inoper‐
ative
ative Adaptive Highbeam Assis
tPlus is faulty.
X Consult aqualified specialist workshop. 310
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
M
MSolutions Lan
eK eeping
Lan eK eeping
Assist currently
Assist currently
unavailable See unavailable See
Owner' sMan‐
Owner' sMan‐
ual ual orAc tive Lane
Active Lane
Keeping
Keeping Assist
Assistcur‐
cur‐
rently
rently unavailable
unavailable
See Owner' sManual
See Owner' sManual Lan
eKeepin gAssistorA ctiveLaneK eepin gAssistisd eactivated
and temporarily inoperative. Possibl ecauses:
R thew indscree nisdirty in th ecamera' sfield of vision
R visibility is impaire ddue to heav yrain ,sno worf og
R there hav ebeen no lan emarking sfor an extended period
R thel an em arking sare worn, dark or covered, e.g. by dir torsnow
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
Lan eKeepin gAssistorA ctiveLaneK eepin gAssistiso perational
again.
If th edisplay message does no tdisappear:
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 Clean th ewindscreen. Lan
eK eeping
Lan eK eeping
Assist inopera‐ Assist inopera‐
tive tiveor Active Lane
Active Lane
Keepin gAssist
Keepin gAssist
inoperative
inoperative Lan
eKeepin gAssistorA ctiveLaneK eepin gAssistisf aulty.
X Consult aqualified specialist workshop. Blind Spo
tAssist
Blind Spo tAssist
currently unavail‐
currently unavail‐
abl eS ee Owner's
abl eS ee Owner's
Manual Manual orActive
Active
Blind Spo tAssist
Blind Spo tAssist
currently unavail‐
currently unavail‐
abl eS ee Owner's
abl eS ee Owner's
Manual Manual Blind Spot Assis
torActiveBlind Spot Assis tistemporarily inop-
erative .Possibl ecauses:
R thef unction is impaire ddue to heav yrain or snow
R ther ada rsensor system is outside th eoperating temperature
range
R ther ada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion soro ther source sofelectromagnetic radiation
The yellow 9indicato rlamp salso ligh tupint heexterio rmir-
rors.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
Blind Spot Assis torActiveBlind Spot Assis tisoperational again.
If th edisplay message does no tdisappear:
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 Restart th eengine. Display
messages
317On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions DISTRONIC PLUS
DISTRONIC PLUS
available again available again DISTRONIC PLU
Sisoperational again after havin gbeen tempo-
rarily unavailable .You can no wreactivat eDISTR ONIC PLUS
(Y page 217). DISTRONIC
DISTRONIC
PLUS
PLUScur‐
cur‐
rently
rently unavailable
unavailable
See Owner' sManual
See Owner' sManual DISTRONIC PLU
Sistemporarily inoperative.
Steerin gAssista nd Stop&Go Pilo tare temporarily inoperative.
Possibl ecauses:
R thef unction is impaire ddue to heav yrain or snow
R ther ada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion soro ther source sofelectromagnetic radiation
R thes ystem is outside th eoperating temperature range
R theo n-bo ardv oltag eistoolow
Aw arnin gtonea lso sounds.
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
DISTRONIC PLU Sisoperational again.
If th edisplay message does no tdisappear:
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 Restart th eengine. DISTRONIC PLUS
DISTRONIC PLUS
inoperative inoperative DISTRONIC PLU
Sisfaulty.
The following may hav ealso failed:
R BA SP LUSw ithC ross-Traffic Assist
R PRE-SAFE ®
Brake
R Steerin gAssista nd Stop&Go Pilot
Aw arnin gtonea lso sounds.
X Consult aqualified specialist workshop. DISTRONIC
DISTRONIC
PLUS
PLUSsus‐
sus‐
pended
pended You hav
edepressed th eaccelerato rpedal .DISTR ONIC PLU Sisno
longer controllin gthe speed of th evehicle.
X Remove your foot from th eaccelerato rpedal. DISTRONIC PLUS
DISTRONIC PLUS
---k m/h
---k m/h An activation condition fo
rDISTR ONIC PLU Sisnotfulfilled.
X Chec kthe activation condition sfor DISTRONIC PLUS
(Y page 217). Display
messages
319On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
M
MSolutions Tyre
Tyre
press.
press. monitor
monitor
currently unavail‐
currently unavail‐
able able As
tron gs ource of radi owave sisc ausin ginterfe rence, this means
that th esignal sfromt hetyrep ressur esensor scanno tbereceived.
The tyr epressur emonitor is temporarily malfunctioning.
X Drive on.
The tyr epressur emonitor restarts automatically as soo nasthe
caus ehas been rectified. Wheel sensor(s) Wheel sensor(s)
missing missing There is no signal from th
etyrep ressur esensor of on eorseveral
wheels. The pressur eoftheaffecte dtyreisn otdisplayed in the
multifunction display.
X Hav ethe fault ytyrep ressur esensor replaced at aqualified spe-
cialist workshop. Tyr
ep ress. moni‐
Tyr ep ress. moni‐
tor tor inoperative
inoperative No
No
wheel sensors
wheel sensors The wheels fitte
ddonothav esuitable tyr epressur esensors. The
tyr ep ressur emonitor is deactivated.
X Fit wheels wit hsuitable tyr epressur esensors.
The tyr epressur emonitor is activated automatically after driv-
in gf or afew minutes. Tyr
ep ressure mon‐
Tyr ep ressure mon‐
itor
itor
inoperative inoperative The tyr
epressur emonitor is faulty.
X Visit aqualified specialist workshop. Vehicle
Display messages
Possible causes/consequences and
M
MSolutions To start engine,
To start engine,
shift to either P shift to either P
or N or N You hav
eattempte dtos tart th eenginew itht he transmissio nin
position Ror D.
X Shift th eselector lever to position Por N. Apply brake to
Apply brake to
deselect deselect
Par
k( P) position
Par k( P) position You hav
eattempte dtos hift th eselector lever to position D,Ror N
without depressin gthe brak epedal.
X Depress th ebrak epedal. 324
Display
messagesOn-boardcomputer an ddisplays

Engine
Problem
Possible causes/consequences and
M
MSolutions ;
The yellow engin
ediag-
nostics warning lamp
light supw hile the
engin eisrunning. Ther
emay be afault ,for example:
R in th eenginem anagement
R in th efuel injection system
R in th eexhaust system
R in th eignition system (for vehicle swith petrol engines)
R in th efuel system
The emission limit values may be exceeded and th eenginem ay be
runnin ginemergency mode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop. Vehicle
swithadiese leng ine: th efuel tan khas been run dry
(Y page 204).
X Afte rrefuellin gstart th eenginet hree to four times.
If th eyellow engin ediagnostics warning lamp goes out ,emer-
gency runnin gmode is cancelled. The vehicle need no tbe
checked. 8
The yellow reserv
efuel
warning lamp is on
while th eengineisr un-
ning. The fuel leve
lhas dropped int othe reserv erange.
Operatio noftheauxiliar yheating is deactivate difthefuel level
drops int othe reserv erange.
X Refuel at th eneares tfillin gstation. ?
The red coolant warn-
ing lamp light
supwhile
th ee ngineisr unning
and th ecoolant tem-
perature gauge is at the start of th escale. The temperatur
esensor for th ecoolant temperatur egauge is
faulty.
The coolant temperatur eisnolonger bein gmonitored. Ther eisa
risk of engin edamage if th ecoolant temperatur eistoohigh.
X Stop th evehicle immediately, paying attentio ntoroad and traf-
fic conditions, and switch off th eengine. Do no tcontinue driving
unde rany circumstances.
X Safeguard th evehicle against rolling away (Y page 205).
X Consult aqualifie dspecialist workshop. 336
Warning and indicator lamps in th
einstrumen tclusterOn-boar dcomputer and displays

Alway
sswitch off the windscree nwiper sand
the ignition before cleaning the windscree nor
wipe rblade s.
! Do not us
edry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the insid eofthe windows .Do
not touch the insides of the windows with
hard objects, e.g .anice scrape rorring.
There is otherwise ariskofd amagin gthe
windows.
! Clea
nthe water drainage channel softhe
windscree nand the rea rwindo watr egular
intervals .Deposits such as leaves, petals
and pollen ma yunder certain circumstan-
ces prevent water from draining away .This
can lead to corrosion damage and damage to electronic components.
X Clea nthe insid eand outsid eofthe win-
dows with adam pcloth and acleaning
agent tha tisr ecommende dand approved
by Mercedes-Benz.
Cleanin gthe wiper blades G
WARNING
If the windscree nwiper sareset in motion
when cleaning the windscree norwiper
blades, yo ucould become trapped. There is a
dange rofinjury.
Alway sswitch off the windscree nwiper sand
the ignition before cleaning the windscree nor
wipe rblade s.
! Do not pull on the wipe
rblade .Otherwise,
the wipe rblade could be damaged.
! Do not clean wipe
rblade stoo ofte nand
do not ru bthem too hard. Otherwise, the
graphite coating could be damaged. This
could cause wipe rnoise.
! Hol
dthe wipe rarm securel ywhenf olding
back. The windscree ncould be damage dif
the wipe rarm hits against it suddenly. X
Fol dthe wipe rarm sa wayfrom the wind-
screen.
X Clea nthe wipe rblade scarefull yusing a
damp cloth.
X Fol dthe windscree nwiper sbacka gain
before switching on the ignition.
Cleanin gthe exterior lighting !
Onl
yusecleaning agents or cleaning
cloths tha tare suitabl efor plastic lenses.
Unsuitabl ecleaning agents or cleaning
cloths could scratch or damage the plastic lenses of the exterio rlighting.
X Clea nthe plastic lenses of the exterior
lighting using awetsponge and amild
cleaning agent, e.g .Mercedes-Benz car
shampo oorcleaning cloths.
Mirro rturn signals !
Onl
yusecleaning agents or cleaning
cloths tha tare suitabl efor plastic lenses.
Unsuitabl ecleaning agents or cleaning
cloths could scratch or damage the plastic lenses of the mirror turn signals.
X Clea nthe plastic lenses of the mirror turn
signals in the exterio rmirror housing using
aw etsponge and mil dcleaning agent, e.g.
Mercedes-Benz car shampo oorcleaning
cloths.
Cleanin gthe sensors !
If yo
uclean the sensors with ahigh-pres-
sure cleaner, make sure tha tyou kee pa
distance of at leas t30cmbetween the
vehicl eand the high-pressure cleane rnoz-
zle .Informatio nabout the correct distance
is availabl efrom the equipment manufac-
turer. Care
389Maintenance and care Z