
G
Risk of accident
Braking efficiency is reduce dafterw ashing
the vehicle .Thisc ould cause an accident. For
this reason, following acar wash, drive with
particula rcare unti lthe brakes are dry.
You can wash the vehicle in an automatic car
wash from the beginning.
! We recommend automatic car washes
with an adjustable 38
high-pressure pre-
cleaning program. In car washe sthat use
hig hw ater pressures, there is adanger that
as mall quantity of water may leak into the
vehicle.
! Cabriolet: do not treatthe vehicle with
hot wa xunder any circumstances.
! Cabriolet: pull the key ou tofthe ignition
lock whe nwashing the vehicle .This
ensures that the wind deflector on the
windscreen is retracted. The wind deflector
may otherwise be damaged.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Make sure that the automatic car wash is
suitabl efor the size of the vehicle .Fold in
the exterior mirrors before the vehicle is
washed. There is otherwise ariskofd am-
ag etot he exterior mirrors.
! Whe nwashing your vehicle in atow-
through car wash, make sure that the auto-
mati ctransmission* is in position N.The
vehicle could otherwise be damaged.
! Make sure that the sid ewindow sare com-
pletel yclosed, that the ventilation/heater
blower is fully turne doff and that the wind-
scree nwiper switch is set to 0.Otherwise,
the rain/light senso rmay be activated, trig-
gering unintende dwiper movements. This
could cause damag etothe vehicle.
After using an automatic car wash, wipe off
wa xa nd drying agents from the windscreen and the wiper blades. Thi
swillp revent smears
and reduce wiping noises caused by residue
on the windscreen.
High-pressure cleaners G
Risk of accident
Do not us ehigh-pressure cleaners with circu-
lar-jet nozzle s(dirt grinders )toclean your
vehicle ,inparticula rthe tyres. You could oth-
erwise damag ethe tyre sand cause an acci-
dent.
! Observe the instructions issue dbythe
equipment manufacturer concerning the
distance to be maintained between the
nozzle of the high-pressure cleane rand the
vehicle (a tleast 30 cm).
Move the high-pressure cleane rnozzle
around whe ncleaning your vehicle.
Do not ai mdirectl yata ny of the following:
R tyres
R doo rjoint
R soft top (Cabriolet)
R wind deflector net (Cabriolet)
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to failures or leaks.
Care and treatmen tofmatt paint-
work* You
rvehicle ha saclear matt finish. For this
reason, yo ushoul dmake sure that you
adhere to the following instructions to avoid
38 In accordance with the specifications for Cabriole tprograms. Care
199Operation
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Where will
Ifind...? ........................... 206
Display messages ............................. 208
Troubleshooting ................................ 230
Locking/unlocking in an emer-
gency ................................................. 249
Resetting the active bonnet
(pedestrian protection) after trig-
gering ................................................. 256
Resetting triggered NECK-PRO
head restraints .................................. 257
Manually lowering the head
restraint sinthe rear (Cabriolet) .....257
AIRCAP* -fitting/removing the
wind deflector (Cabriolet) ................258
Changing batteries (key) ..................259
Changing bulbs ................................. 260
Replacing the wiper blades ..............263
Flat tyre ............................................. 263
Battery ............................................... 273
Jump-starting .................................... 276
Towing and tow-starting ..................278
Fuses .................................................. 280 205Practical advice
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Tex
tmessages G
Ris
kofa ccident and injury
If work relevant to safety is carrie doutincorrectly ,thisc ould impai rthe operating safety of your
vehicle. Yo ucould lose contro lofthe vehicl eand cause an accident. In addition, the safety
system smayno longe rbeabletop rotect yo uorothers as the yaredesigne dtodo.
Alway shavem aintenance work carrie doutataq uali fied specialis tworkshop .The workshop must
have the necessary specialis tknowledg eand tool stocarry ou tthe work required .Mercedes-
Benz recommends tha tyou useaM ercedes-Benz Service Centre for thi spurpose. In particular,
work relevant to safety or on safety-relate dsystem smustbec arriedoutataq uali fied specialist
workshop. Display messages Possible causes/consequence
sand 0050
0050Solutions 120 km/h Maximum
speed
exceeded
The maximum spee
dhasbeen exceeded 39
.
X Driv emores lowly. Adaptive
Main-beam
Assist inopera‐
tive
Adaptive Highbea
mAssist* is faulty.
X Visi taq ualified specialis tworkshop. Active
bonnet malfunc‐
tio
nSee
Owner's
Manual The active bonnet functio
n(pedest rianp rotection) is not
active du etoamalfunction.
X Visi taq ualified specialis tworkshop. Auxiliary
battery malfunc‐
tion The auxiliary battery for the automatic transmission is no lon-
ge
rb eing charged.
X Visi taq ualified specialis tworkshop. P Select
Par
k(P) Yo
uh aves witched off the engine with the Start/Stop but-
ton* and opene dthe driver's door.
Yo ua ttempte dtolockt he vehicle.
Aw arnin gtone also sounds.
X Mov ethe selecto rlev er to P. 39
Onl yfor certai ncountries. Displa
ymessages
209Practical advice
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Display messages Possible causes/consequences and
0050
0050Solutions Run Flat
Indicator inopera‐
tive The tyr
epressur elossw arnin gsystem is faulty.
X Visit aqualified specialist workshop. Check
tyr
ep res‐
sures then
restart
Run Flat
Indicator Ad
isplay message fo rthe tyrep ressur elossw arnin gsystem
was shown.
X Se tthe correc ttyrep ressur efor all tyres (Y page 186).
X Restart th etyrep ressur elossw arnin gsystem
(Y page 187). PRE-SAFE inopera‐
tiv
eS ee
Owner's
Manual G
Risk of injury
Importan tfunction sofPRE-SAFE ®
hav efailed. Al lother occu-
pan tsafet ysystems ,e.g.a irbags, remain available.
X Visit aqualified specialist workshop. PRE-SAFE Functions
currently
limited
See Own‐
er'
sM an‐
ual G
Risk of accident
The PRE-SAFE ®
Brake *istemporarily inoperative if
R theD ISTR ONIC PLUS* cover in th eradiato rgrille is dirty.
R thes ensor sinthebumpers are dirty.
R itsf 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 radio
station sorother source sofelectromagnetic radiation.
R thes ystem is outside th eoperating temperature range.
R theo n-bo ardv oltag eisinsufficient.
The PRE-SAFE ®
Brake *isoperational again and th edisplay
message disappear swhen
R thed irt( e.g. slush) drops away while you are driving.
R thes ystem detects that th esensor sare full yavailable
again.
R thes ystem is within th eoperating temperature range.
If th edisplay message continues to be displayed:
X Clean th eDISTR ONIC PLUS* cover in th eradiato rgrille
(Y page 202).
X Clean th ebumpers (Y page 202).
X Restart th eengine.
X Wait until th ebattery is charged sufficiently. 214
Display
messagesPractical advice
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Display messages Possible causes/consequences and
0050
0050 Solutions 003F The battery is no
tbein gcharged. Awarnin gton ea lso sounds.
Possibl ecauses are:
R af ault yalternator
R at ornp oly-V-belt
R am alfunction in th eelectronics
X Pull ove rand stop th evehicl esafely, payin gattention to
roa dand traffic condition sand leav ethe engin erunning.
X Ope nthe bonnet.
X Chec kwhether th epoly-V-belt is torn.
If th epoly-V-belt is torn:
! do no tcontinu edriving. The engin ecould otherwise over-
heat.
X Switc hoffthee ngine.
X Consult aqualified specialist workshop.
If th epoly-V-belt is OK:
X Visit aqualified specialist workshop. 0026 Check
brake wear The brak
epads/lining shaver eached their wear limit.
X Visit aqualified specialist workshop. 004D Check
brake
fluid
level
G
Risk of accident
There is insufficien tbrak efluidint hebrak efluidr eservoir .In
addition ,the 004D indicato rlamp in th einstrument cluster
lights up and awarnin gtones ounds.
X Pull ove rand stop th evehicl esafely as soo naspossible,
payin gattention to roa dand traffic conditions. Do no tcon-
tinue drivin gunder any circumstances.
X Consult aqualified specialist workshop.
Do no ttop up th ebrak efluid. This will no trectify th efault. 004D Release
parking
brake You are drivin
gwitht he parkin gbrak eapplied. Awarnin gtone
also sounds.
X Releas ethe parkin gbrake. Display
messages
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Problem Possible causes/consequences and
0050
0050Solutions The rear-window heat-
ing has switched off
prematurely or cannot
be switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. seat heating*
or interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically. Vehicles with auto-
matic child seat recog-
nition on the front-
passenger seat*:
The
007F0080indica-
tor lamp on the centre
console is lit. As
pecial Mercedes-Ben zchild seat with automatic child seat rec-
ognition has been fitted to the front-passenger seat .The front-
passenger airbag has therefore been disabled as desired. G
Risk of injury
There is no child seat fitted to the front-passenger seat .The auto-
matic child seat recognition *ismalfunctioning.
X Remove electronic equipmen tfromt he front-passenger seat,
for example:
R notebook
R mobile phone
R card swith transponders, e.g. ski passes or access passes
If the 007F0080indicator lamp remain slit:
X Visit aqualified specialist workshop. Troubleshooting
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Engine
Problem Possible causes/consequences and
0050
0050Solutions The engin
ewill not
start. The HOLD function or Distronic Plus* is activated.
X
Switch off HOLD (Y page 136) or Distronic Plus (Y page 131).
X Try to start th eenginea gain. The engin
ewill not
start .You can hear the
starter motor operat-
ing. R
Ther eisam alfunctio nintheengin eelectronics.
R Ther eisam alfunctio ninthefuel supply.
R The on-board voltage is to olow because th estarter battery is
to ow eak or discharged.
X Before th enexts tart attempt ,tur nt he keyb ack to position 0
(Y page 65 )intheignition loc korpressthe Start/Sto pbut-
ton* until all th eindicator light sintheinstrumen tcluste rhave
gon eout.
X Try to start th eenginea gain (Y page 98). When doin gso,
remembe rtha te xcessively lon gand frequen tattempt stostart
th ee nginew ill drain th ebattery.
If th eengined oes no tstart after several attempts:
X Consult aqualifie dspecialist workshop. The engin
ewill not
start .You can hear the
starter motor operat-
ing .The reserv efuel
warning lamp is on and
th ef uel gauge
shows 0. The fuel tan
khas been run dry.
X Refuel th evehicle. The engin
ewill not
start .You canno thear
th es tarter motor. The on-board voltage is to
olow because th estarter battery is too
weak or discharged.
X Jump-start th evehicle (Y page 276).
If th eengined oes no tstart despite attempting to jump-star tit:
X Consult aqualifie dspecialist workshop. The starter motor was exposed to
athe rmal load that was to ohigh.
X Allo wthe starter motor to coo ldown for approximately two
minutes.
X Try to start th eenginea gain.
If th eengines till does no tstart:
X Consult aqualifie dspecialist workshop. Troubleshooting
241Practical advice
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Problem Possible causes/consequences and
0050
0050Solutions You can no longer lock
or unlock the vehicle
using KEYLESS GO*.
KEYLESS GO* is in standby mode because the vehicle has not
been unlocked for an extended period.
X
Pull the door handle and then turn the key to position 2in the
ignition lock. KEYLESS-GO* is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the 0036/0037button.
X Have the key checked at aqualified specialist workshop. There is interference from
apowerful source of radio waves.
X Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 249).You have lost
akey. X
Have the key cancelled at aMercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. The key cannot be
turned in the ignition
lock. The key has been in position
0for aconsiderable time.
X Remove the key and reinsert it into the ignition lock.
X Check the starter battery and charge it if necessary
(Y page 273).
X Start the engine. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating* or inte-
rior lighting, and try to turn the key again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 273).
or
X Jump-start the vehicle (Y page 276).
or
X Consult aqualified specialist workshop. 248
TroubleshootingPractical advice
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ptional
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