
Display messages
Possible causes/consequences and
0050
0050Solutions 0049(USA
only)0024
(Canada
only)
Parkin gBrake See
Parkin gBrake See
Oper. Manual Oper. Manual 0024
The warnin glamp (yellow) lights up. Additionally th eind ica-
to rlamp (red) lights up.
The electric parkin gbrak eism alfunctioning.
To release:
X Pull th eelectric parkin gbrak ehandle.
or X Pull away carefully.
X Visit aqualified specialist workshop.
To apply: X Switc hthe ignition off.
X Pull th eelectric parkin gbrak elever fo ratleastten seconds, until
th ed isplay message disappears.
If th edispla ymessage continues to be displayed:
X Shift th etransmissio ntoPwith th ebutto nint hecenter console.
X Preven tthe vehicl efromr ollin gaway before you leav eit.
X Consult aqualified specialist workshop. 0024
The indicato rlamp (red) flashes.
The powe rsupply fo rthe electric parkin gbrak ew as interrupted.
X Pull th eelectric parkin gbrak ehandle.
or
X Pull away carefully.
or X Pull th eelectric parkin gbrak ehandle until th edisplay message
disappears. 0024
The indicato rlamp (red) flashes and th ewarnin glamp (yel-
low) lights up.
The electric parkin gbrak eism alfunctioning.
X Switc hoffthei gnition and tur nitbacko n.
X Engage or release th eelectric parkin gbrake.
or
X Pull away carefully.
X Visit aqualified specialist workshop. Display
messages
167On-boardcomputer an ddisplays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 0024
The warnin glamp (yellow) lights up. In addition ,the indicator
lamp (red) flashes fo rabout 10 seconds after th eelectric parking
brak ehas been engage dorreleased. It then goe sout or remains
lit.
The electric parkin gbrak eism alfunctioning, e.g. because of over-
voltag eorundervoltage.
X Pull away carefully.
X Visit aqualified specialist workshop.
If there is overvoltage or undervoltage: X Remove th ecaus efor theo vervoltage or undervoltage, e.g. by
chargin gthe battery or restarting th eengine.
X Switc hthe ignition of fand on ,and then engage or release the
electric parkin gbrake.
If this does no trelease th eelectric parkin gbrake:
X Do no tdrive on.
X Consult aqualified specialist workshop. 0024
The warnin glamp (yellow) lights up. In addition ,the indicator
lamp (red) flashes fo rabout 10 seconds after th eelectric parking
brak ehas been engage dorreleased. It then goe sout or remains
lit.
The electric parkin gbrak ehas overheated.
X Allow th evehicl etoc ooldown .Don otengage or release the
electric parkin gbrak eduring this time.
X Preven tthe vehicl efromr ollin gaway before you leav eit.
X Whe nthe vehicl ehas cooled down :switch th eignition of fand on
again ,the ne ngage or release th eelectric parkin gbrake. 0049(USA
only)0024
(Canada
only)
Parking Parking Brake
BrakeInop‐
Inop‐
erative
erative 0024
The warnin glamp (yellow) lights up. In addition ,the indicator
lamp (red) flashes fo rabout 10 seconds after th eelectric parking
brak ehas been engage dorreleased. It then goe sout or remains
lit.
The electric parkin gbrak eism alfunctioning.
X Switc hthe ignition of fand on ,and then engage th eelectric
parkin gbrake.
If it is no tpossibl etoengage th eelectric parkin gbrake:
X Shift th etransmissio ntoPwith th ebutto nint hecenter console.
X Preven tthe vehicl efromr ollin gaway before you leav eit.
X Visit aqualified specialist workshop. 168
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
0050
0050Solutions 0049(USA
only)0024
(Canada
only)
Tur nOnt he Igni‐
Tur nOnt he Igni‐
tio ntoR elease
tio ntoR elease
the Parkin gBrake
the Parkin gBrake 0024
The indicato rlamp (red) flashes.
You attempte dtor elease th eelectric parkin gbrak ew hile th eigni-
tion was switched off.
X Switc hont heignition. 0049(USA
only)004D
(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is no
tenough brak efluidint hebrak efluidr eservoir .In
addition ,the 004D indicato rlamp in th einstrument cluster lights
up and awarnin gtones ounds.
G WARNING
Drivin gwitht he message Check Brake Fluid Level
Check Brake Fluid Level displayed
can result in an accident.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions. Do no tcontinu edriving
under any circumstances.
X Consult aqualified specialist workshop.
Do no tadd brak efluid. This does no tcorrect them alfunction. 0026
Check Brake Pad Check Brake Pad
Wear Wear The brak
epads/lining shaver eached their wear limit.
X Visit aqualified specialist workshop. Display
messages
169On-boardcomputer an ddisplays Z

Safety systems
Display messages
Possible causes/consequences and
0050
0050Solutions 00E5
ESC Inoperative ESC Inoperative
See See
Operator's
Operator's Man‐
Man‐
ual
ual ESP
®
,B AS and hill start assist are unavailable due to amalfunc-
tion. In addition, the 0089and00BB warning lamps light up in the
instrumen tcluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Drive on carefully.
X Visit aqualified specialist workshop. 00E5
ESC Currently ESC Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual ESP
®
,B AS and hill start assist are temporarily unavailable. The
self-diagnosis function might not be complete, for example. The
brake system continues to function normally, but without the
functions listed above. In addition, the 0089and00BB warning
lamps light up in the instrumen tcluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Carefullyd riveashort distance making slight steering move-
mentsatas peed above 12 mph (2 0km/ h)until th edisplay
message disappears. Front Passenger Front Passenger
Airbag Enabled Airbag Enabled
See See
Operator's
Operator's Man‐
Man‐
ual
ual The front-passenger air bag and front-passenger knee bag are
enabled durin
gthe journey, eve nthough:
R ac hild, asmal ladult or an objec tweighing less than th esys-
tem's weigh tthreshold is locate donthefront-passenger seat
R thef ront-pa ssenger seat is unoccupied
The system may detec tobjects or force sapplyin gadditional
weigh tontheseat.
G WARNING
The front-passenger fron tair bag and fron tpassenger knee bag
may be triggered unintentionally.
Ther eisani ncreased ris kofinjury.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to road and traffic conditions.
X Apply th eparking brake.
X Switch th eignition off.
X Open th efront-pa ssenger door.
X Remove th echild and th echild restraint system from th efront-
passenger seat. 170
Display messagesOn-boar
dcomputer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Check Check
Left
LeftLow
LowBeam
Beam
or
Check Right Low Check Right Low
Beam Beam The lef
torright-hand low-beam headlamp does no tligh tup. In
addition ,the high-beam headlamp is also inoperative.
X Visit aqualified specialist workshop. 0049
AUTO AUTO
Lamp
LampFunction
Function
Inoperative
Inoperative The ligh
tsensor is defective.
US Ao nly:
X Switc hoffth ed aytime running lamp sintheon-boar dcom puter
(Y page 158).
X Switc hthe lights on and of fusin gthe ligh tswitch. 0049
Check Rea
rLeft
Check Rea rLeft
Tur nS ignal
Tur nS ignal
or
Check Rea rRight
Check Rea rRight
Tur nS ignal
Tur nS ignal The LEDs in th
erear lef torright-hand indicato rlamp do no tlight
up.
X Visit aqualified specialist workshop. 0049
Check Lef
tMirror
Check Lef tMirror
Tur nS ignal
Tur nS ignal
or
Check Check Right
RightMirror
Mirror
Tur nS ignal
Tur nS ignal Non
eoft heLEDs in th eleftorr ight-hand exterio rmirror sligh tup.
X Visit aqualified specialist workshop. 0049
Check Front Left Check Front Left
Tur
nS ignal
Tur nS ignal
or
Check Front Right Check Front Right
Tur nS ignal
Tur nS ignal The LEDs in th
efront leftorr ight-hand indicato rlamp do no tlight
up.
X Visit aqualified specialist workshop. 0049
Check Check
Center
Center Brake
Brake
Lamp
Lamp Non
eoft heLEDs in th ehigh-mounte dbrak elamp ligh tup.
X Visit aqualified specialist workshop. 174
Display
messagesOn-boardcomputer an ddisplays

Display messages
Possible causes/consequences and
0050
0050Solutions 0049
Check Lef
tBrake
Check Lef tBrake
Lamp Lamp
or
Check Right Brake Check Right Brake
Lamp Lamp The lef
torright-hand brak eligh tLED sdon otligh tup.
X Visit aqualified specialist workshop. 0049
Check Lef
tTail
Check Lef tTail
Lamp Lamp
or
Check Right Tail Check Right Tail
Lamp Lamp The lef
torright-hand tai llamp LEDs do no tligh tup.
X Visit aqualified specialist workshop. 0049
Check Lef
tHigh
Check Lef tHigh
Beam Beam
or
Check Right High Check Right High
Beam Beam The lef
torright-hand low-beam headlamp does no tligh tup.
X Visit aqualified specialist workshop. 0049
Check Check
Left
LeftLicense
License
Plate Lamp
Plate Lamp
or
Check Right Check Right
Licens ePlate Lamp
Licens ePlate Lamp The lef
torright-hand license plat elamp does no tligh tup.
X Replac ethe bulb (Y page 101). 0049
Backup Light Backup Light Non
eoft heLEDs in th ebackup lamp ligh tup.
X Visit aqualified specialist workshop. 0049
Check Check
Left
LeftDaytime
Daytime
Runnin gLight
Runnin gLight
or
Check Right Day‐ Check Right Day‐
tim eR unnin gLight
tim eR unnin gLight The LEDs in th
eleftorr ight-hand daytime running lamp do no tlight
up. As aresult ,the correspondin gside/standin glamp has failed.
X Visit aqualified specialist workshop. Display
messages
175On-boardcomputer an ddisplays Z

Warning and indicator lamps in the instrument cluster
Braking
Problem
Possible causes/consequencesa
nd0050
0050Solutions 0027
(USA
only)
004D
(Can-
ada
only)
The red brake
syste
mwarning
lamp comes on
while the
engine is run-
ning. Awarning
tone also
sounds. There is not enoug
hbrake fluid in the brake fluid reservoir.
G WARNING
The braking effect may be impaired.
There is arisk of an accident.
X Pul lover and stop the vehicl esafely as soon as possible ,paying
attention to road and traffic conditions. Do not continue driving
unde rany circumstances.
X Secure the vehicl eagainst rolling away (Y page131).
X Do not add brake fluid. Adding more wil lnot remed ythe mal-
function.
X Consult aqualified specialist workshop.
X Observe the additiona ldisplaym essages in the multifunction
display. 0049
(USA
only)
0024
(Can-
ada
only)
The indicator
lamp for the
electric parking
brake flashes
and/or the yel-
low warning
lamp for the
electric parking
brake lights up. The electric parking brake is temporarily malfunctioning or defec-
tive.
G WARNING
In this condition, the vehicl eisonly of limited roadworthiness. This
can lea dtoana ccident.
X Observe the additiona ldisplaym essages in the multifunction
display. 190
Warning and indicator lamps in the instrument clusterOn-board computer and displays

!
Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the
graphite coating could be damaged. This
could cause wiper noise.
X Switch off the engine.
X Remove your foot from the brake pedal.
X Set the windshieldw iper to the00AAposi-
tion on the combination switch.
X Press the Start/Stop button repeatedly
until the windshieldw iper starts.
X When the wiper arms have reached aver-
tical position, press the Start/Stop button.
X Fold the wiper arm awayf rom the wind-
shield until it engages.
X Set the wiper bladeatr ight angles to the
wiper arm.
X Carefully clean the wiper blades with a
damp cloth.
X Fold the windshieldw iper arms back again
before switching on the ignition.
! Hold the wiper arm securely when folding
back. The windshieldc ould be damagedif
the wiper arm smacks against it suddenly.
Cleaning the exterior lighting X
Cleant he plastic lenses of the exterior
lighting using awet sponge and amild
cleaning agent, e.g. Mercedes-Benz car
shampoo or cleaning cloths.
! Only use cleaning agents or cleaning
cloths which are suitablef or plastic light
lenses. Unsuitable cleaning agents or
cleaning cloths could scratch or damage
the plastic light lenses.
Cleaning the mirror turns ignals!
Only use cleaning agents or cleaning
cloths that are suitablef or plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratch or damage the plastic
lenses of the mirror turn signals.
X Cleant he plastic lenses of the mirror turn
signals in the exterior mirror housing using aw
et sponge and amild cleaning agent,
e.g. Mercedes-Benz car shampoo or clean-
ing cloths.
Cleaning the sensors !
If you clean the sensors with
apower
washer, make sure that you keep adis-
tance of at least 11.8 in (30 cm) between
the vehicle and the power washer nozzle.
Information aboutt he correct distance is
available from the equipment manufac-
turer. X
Cleans ensors0043of the driving systems
with water, car shampoo and asoft cloth.
Cleaning the rear view camera X
Use clear water and asoft cloth to clean
camera lens 0043.228
CareMaintenance and care