2015 MERCEDES-BENZ E-CLASS SALOON brake

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 b
Traile
rleftt urn
Traile rleftt urn
signal signal orTrailer
Trailer
right tur nsignal
right tur nsignal The lef
torright-hand trailer tur nsignal lamp is faulty.
X Consult th emanufacturer' soperating instructions. b
Traile
rbrake lamp
Traile rbrake lamp The trailer brak
elamp is faulty.
X Consult th emanufacturer' soperating instructions. b
Rear Rear
left
leftturn
turn sig‐
sig‐
nal
nal orRea rr ight
Rea rr ight
tur ns ignal
tur ns ignal The rear left-han
dorrear right-hand tur nsignal is faulty.
X Consult aqualified specialist workshop. b
Front lef
tturn
Front lef tturn
signal signal orFront
Front
right tur nsignal
right tur nsignal The fron
tleft-han dorfrontright-hand tur nsignal is faulty.
X Chec kwhether you are permitte dtor eplac ethe bulb yourself
(Y page 150).
or
X Consult aqualified specialist workshop. b
Lef
tm irror turn
Lef tm irror turn
signal signal orRightm ir‐
Right mir‐
ror tur nsignal
ror tur nsignal The tur
nsignal in th eleft-han dorright-hand exterio rmirror is
faulty.
X Consult aqualified specialist workshop. b
Third brake lamp Third brake lamp The third brak
elamp is faulty.
X Consult aqualified specialist workshop. b
Left-hand tail Left-hand tail
lamp/brake lamp/brake
lamp lampor
Right-hand
Right-hand
tai ll amp/brake
tai ll amp/brake
lamp
lamp The lef
torright-hand tai llamp/brak elamp is faulty.
X Consult aqualified specialist workshop. b
Lef
tm ain
Lef tm ain
beam beamor Right main
Right main
beam
beam The lef
torright-hand main-beam headlamp is faulty.
X Chec kwhether you are permitte dtor eplac ethe bulb yourself
(Y page 150).
or
X Consult aqualified specialist workshop. 308
Display
messagesOn-boardcomputer an ddisplays

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

Display messages
Possible causes/consequences and
M
MSolutions Ris
kofv ehicle
Ris kofv ehicle
rolling
rolling
Transmission not Transmission not
in P in P The driver's doo
risopen or no tfull yc losed and th eselector lever
is in position R,Nor D.
Aw arnin gtonea lso sounds.
G WARNING
The vehicl emay rol laway.
There is ariskofana ccident.
X Shift th eselector lever to position P.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Clos ethe driver's doo rfully. Withou
tchanging
Withou tchanging
gear,
gear,
consul tworkshop
consul tworkshop You canno
tcha ng ethe transmissio nposition due to amalfunction.
Aw arnin gtonea lso sounds.
If transmissio nposition Dis selected:
X Drive to aqualified specialist workshop without shiftin gthe
transmissio nfromp osition D.
If transmissio nposition R,Nor Pis selected:
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Consult aqualified specialist workshop. Onl
ys elect Park
Onl ys elect Park
(P) (P)
whe nv ehicl eis
whe nv ehicl eis
stationary stationary The vehicl
eismoving.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Shift th eselector lever to position P.Transmission Mal‐
Transmission Mal‐
function Stop function Stop Am
alfunction has occurred in th emechanica ltra nsmissio ncom-
ponents.
Aw arnin gton ea lso sounds. The transmissio nshift sautomatically
to position N.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Shift th eselector lever to position P.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 205).
X Consult aqualified specialist workshop. Auxiliary battery Auxiliary battery
malfunction malfunction The auxiliar
ybattery fo rthe transmissio nisnolonger being
charged.
X Consult aqualified specialist workshop at th enexto pportunity.
X Unti lthen, set th eselector lever to position Pbefore you switch
of ft he engine.
X Before leavin gthe vehicle, apply th eparkin gbrake. Display
messages
325On-boardcomputer an ddisplays Z

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

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