ignition MERCEDES-BENZ E-CLASS COUPE 2009 Repair Manual

Trailer power supply
When it leaves the factory ,you rv ehicle's
trailer socket outle tise quippe dwithap er-
manent powe rsuppl yand apower supply that
is switched on via the ignition lock.
The permanent powe rsuppl yiss upplie dvia
trailer socket pi n9.
The powe rsuppl ythatiss witched on via the
ignition lock is supplied via trailer socket
pi n1 0.
! Youc an connect consumers with apower
rating of up to 240 Wtothe permanent
powe rsuppl yand up to 180 Wtothe power
supply tha tiss witched on via the ignition
lock.
Yo um ustn ot charge atrailer battery using
the powe rsupply.
The trailer' spermanent powe rsuppl yis
switched off in the event of lo wvehicl esupply
voltag eand after si xhours at the latest.
Yo uc an obtai nfurthe rinformatio nabout
installing the trailer electrics fro maqualified
specialis tworkshop ,e.g.aM ercedes-Benz
Service Centre.
X To switc hthe connected power supply
on or off: turnthe key in the ignition lock
to position 2or 0,r espectively. Bulb failure indicator fo
rLEDs
i If LED lamps ar efitte dint he trailer, an
error message ma yappea rinthe multi-
functio ndisplay –evenift hereisnof ault –
if the corresponding LED chain' scurrent
dra wd rops belo w50milliamperes (mA).
To ensur ereliabl eoperatio noft he bulb failure
indicator, aminimu mcurrent of 50 mA must
be guaranteed by the manufacturer of each
LED chain in the trailer lighting. Trailer with 7-pi
nconnect or
If your trailer ha sa7-pinc onnector, yo ucan
connect it to the 13-pin socket on the ball
coupling using an adapter or, if necessary ,an
adapter cable .Both of these can be obtained
at aq uali fied specialis tworkshop ,e.g.ata
Mercedes-Benz Service Centre.
Fittin gthe adapter X
Open the socket cover.
X Insert connector with lug 0046into
groove 0047on the socket and tur nthe con-
necto rclockwise to the stop.
X Make the cove rengage.
X If yo uareusing an adapter cable ,sec ure
the cable to the trailer with cable ties.
! Make sure tha tthere is sufficient cable
play so tha tthe cable canno tbecome
detached when cornering. Service
ASSYST PLUS service interval display
The ASSYST PLU Sservice interva ldisplay
informs yo uofthe next service du edate.
The service du edateiss hown in the multi-
functio ndisplay ,for example:
Nex tservic eAin..d ays
Nex tservic eAin. .. km
Servic eAdue
The letter indicates which service is due. A
stands for aminor service and Bfor am ajor Service
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service.
Anumber or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenance work
to be performed. If you report this displayed
information to aqualified specialist work-
shop, for example aMercedes-Benz Service
Centre, they can inform you of the costs the
service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted. To maintain the time-dependent service
schedule:
X Note down the service due date displayed
before disconnecting the battery.
or
X Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
Hiding aservice message X
Press 0041or0064.
Service overdue Ad
isplaym essage is shown in the multi-func-
tion display, for example:
Service Aoverdue by ... days
Service Aoverdue by .. km
i If you fail to have the service performed
by the specified date, you may be violating
applicable laws. Your warranty may be inva-
lidated and goodwills ettlementsmay be
refused.
Callingupa service due date X
Switch on the ignition.
X Press the 0040or003E button to select the
Service menu.
X Press the 003Cor003D button to select the
ASSYST PLUS submenu and confirm with
0064.
The multi-function displays hows the
service due date. Care
Care and cleaning products
Regular care of your vehicle is acondition for
retaining the quality in the long term.
Use only care products and cleaning agents
recommended and approved by Mercedes-
Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
and do not scrub.
Do not touch the surfaces and protective
films with hard objects, e.g. rings or ice
scrapers. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging, cleaning cloths
and polishing wads in an environmentally
responsible manner.
! Do not park the vehicle for along period
of time directly after cleaning, especially if
the wheels have just been cleaned with a
wheel cleaner. Wheel cleaners could cause
rapid corrosion of the brake discs and
brake pads/linings. After cleaning, park
the vehicle when it is at normal operating
temperature. Exterior care
Automatic car wash G
Risk of accident
The vehicle is braked when the HOLD function
or DISTRONIC PLUS* is activated. Therefore,
deactivate the Hold function or DISTRONIC
PLUS before the vehicle is washed in an auto-
matic car wash. 198
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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
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Cleaning AIRCAP*
Cleaning th
ewind deflector
Clean th ewind deflecto ronthewindscreen
wit hthe softtop closed.
X Apply th eparking brak efirmly.
X Vehicles with akey: turnthe keyt op osi-
tion 2(Y page 65)in th eignition lock.
X Vehicles with KEYLESS-GO*: pressthe
Start/Sto pbutto ntwice (position
2 (Y page 66)).
X Open th ecover in th elower centr econsol e.
The AIRCAP butto nislocate dunde rthe
cover ;see illustration. AIRCAP butto
ninthelower sectio nofthecentre
console
X Press button 0046.
The wind deflecto rbetween th ewind-
scree nand th esoftt op is extended. X
Clean net 0047of th ewind deflecto rwitha
sof tbrus horam oistcloth .For heavier soil-
ing ,clean it wit hthe car eand cleaning
agents recommended and approved by Mercedes-Ben
zand rinse it wit hclean
water.
! Do no tuse high-pressur ecleanin gequip-
men ttoc lean th enet.
Cleaning th eAIRCAP draught stop
Clean th eAIRCAP draught stop wit hthe soft
to po pen.
X Vehicles with akey: turnthe keyt op osi-
tion 2(Y page 65)in th eignition lock.
X Vehicles with KEYLESS-GO*: pressthe
Start/Sto pbutto ntwice (position
2 (Y page 66)).
X Open th esoftt op ( Ypage 160). Rear seat head restraint butto
nintheupper control
panel
X Press button 0046.
The rear seat head restraint and AIRCAP
draught stop ris eupwards. X
Clean net 0047of th eAIRCAP draught stop
wit ham oistcloth together wit hthe care
and cleanin gagents recommended and
approved by Mercedes-Benz. Care
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Cleaning th
ewheels !
Do no tuse acidic wheel cleaners to
remove brak edust .This could damage
wheel bolt sand brak ecom ponents.
Cleaning th ewindows X
Clean th einside and outside of th ewin-
dows wit hadamp cloth and acleaning
product approved and recommended by
Mercedes-Benz.
! Clean th ewaterdrainage channels of the
windscree nand th erear window at regular
intervals. Under certain circumstances,
deposits suc hasleaves, petals and pollen
may preven twate rfromd raining away
leadin gtocorrosiond amage.
Cleaning th ewiper blades G
Ris
kofi njury
Before cleanin gthe windscree norwiper
blades ,tur nt he keyt op osition 0in th eigni-
tio nloc korp ressthe Start/Sto pbutton* until
all indicator lamps have gon eout in th einstru-
men tcluster. The windscree nwiper scould
otherwise mov eand caus einjury.
! Do no tclean th ewiper blades to ooften
and do no trub them to ohard ,ast hisw ill
result in damag etothegraphit ecoating.
This could caus ewiper noise.
X Fol dthe wiper arm saway from th ewind-
screen.
X Clean th ewiper blades carefully wit ha
damp cloth.
X Fol dthe wiper arm sback again before
switching on th eignition.
Cleaning th eheadlamps X
Clean th eplastic lenses of th eheadlamps
wit haw et sponge and windscree nwasher
fluid or cleanin gcloths. !
Only use washe rfluid or cleanin gcloths
suitable for plastic lenses. Unsuitable
washe rfluid or cleanin gcloth scould
scratch or damag ethe plastic lenses of the
headlamps.
Cleaning th esensors* X
Clean sensors 0046of th edriving systems
wit hw ater, car shampoo and asoftc loth.
! If you clean th esensor susin gah igh-pres-
sure cleane rorsteam cleaner, observ ethe
manufacturer' sinformatio nonmaintaining
th ec orrec tdistanc ebetween th evehicle
and th ehigh-pressur ecleaner.
Cleaning th ereversing camera* X
Use clear wate rand asoftc loth to clean
camera lens 0046.202
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Display messages Possible causes/consequences and
0050
0050Solutions 0039 Key not
detected
(re
dd isplay
message) The KEYLESS-GO key* is no
tinthevehicle. Awarnin gtone
also sounds.
Whe nyou switch th eengineo ff,y ou canno tloc kt he vehicle
centrall yorstart th eenginea gain.
X Pull ove rand stop th evehicl esafely as soo naspossible,
payin gattention to roa dand traffic conditions.
X Locate th eKEYLESS-GO key*. The KEYLESS-GO key* is no
tdetecte dwhile drivin gbecause
ap owerful radi otransmitte riscausin ginterfe rence. Awarn-
in gt onea lso sounds.
X Pull ove rand stop th evehicl esafely as soo naspossible,
payin gattention to roa dand traffic conditions.
X Remove th eStart/Sto pbutto nfromt heignition lock*
(Y page 66).
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position. 0039 Key not
detected
(whit
edis-
play mes-
sage) You wan
ttounlockorl ockt he vehicl eand th eKEYLESS-GO
key* canno tbecurrentl ydetecte dbythevehicle.
X Locate th eKEYLESS-GO key*.
If th eKEYLESS-GO key* is still no tdetected:
X Loc koru nlockthe vehicl eusingthe key. You are in th
evehicl eand th eKEYLESS-GO key* currently
canno tbedetecte dbythevehicle.
X Change th elocation of th ekeywit hthe KEYLESS-GO func-
tions* in th evehicle.
If th eKEYLESS-GO key* is still no tdetected:
X Remove th eStart/Sto pbutto nfromt heignition lock*
(Y page 66).
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position. 0039 Key still
in vehicle
The KEYLESS-GO key* has been detecte
dinside th evehicle
during locking.
X Remove th eKEYLESS-GO key* from th evehicle. 0039 Replace
key The ke
ymustber eplaced.
X Visit aqualified specialist workshop. 226
Display
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Display messages Possible causes/consequences and
0050
0050 Solutions 0039 Key does
not
belong to
vehicle You hav
eput th ewrong ke yint he ignition lock.
X Use th ecorrect key. 0039 Close
doors to
loc
kv ehi‐
cle At leas
tone doo riso pen.Aw arnin gtonea lso sounds.
X Clos eall doors and loc kthe vehicl eagain. 0039 Remove
starting
button,
then
insert key
KEYLESS-GO
*ist emporarily malfunctioning or is defective. A
warning tone also sounds.
X Remove the Start/Stop button from the ignition lock*
(Y page 66).
X Insert the key into the ignition lock and turn it to the desired
position. 006F Front
left seat
backrest
not locked
or
Front
right
seat back‐
rest not
locked The seat backrest is not engaged.
Awarning tone also sounds.
X Push the backrest back until it engages. 006F Rear left
seat back‐
rest not
locked
or
Rear
right
seat back‐
rest not
locked
G
Risk of injury
The backrest in the rear is not engaged on the left-hand and/
or right-hand side. Awarning tone also sounds.
X Push the backrest back until it engages (Y page 169).0081 Restraint
sys. mal‐
function
Consult
workshop
G
Risk of injury
There is amalfunction in the SRS (Supplemental Restraint
System). The 0081warning lamp also lights up in the instru-
ment cluster.
X Visit aqualified specialist workshop. Display messages
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Problem Possible causes/consequences and
0050
0050Solutions 00AE
The red coolant
warning lamp
comes on while
the engine is
running. Awarn-
ing tone also
sounds. The coolant temperature has exceeded 130 †. The airflow to the
radiator may be blocked or the coolant level may be too low.
The engine is not being cooled sufficiently and may be damaged.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Make sure that the air supply to the radiator is not blocked, e.g.
by slush.
X Check the coolant level (Y page 183). Observe the warning
notes.
X If necessary, top up the coolant.
X Have the engine cooling system checked at aqualified specialist
workshop if the coolant needs topping up more often than usual.
If the coolant level is correct,t he electric radiator fan may be
faulty.
X Do not continue driving under any circumstances.
X Consult aqualified specialist workshop. 00BB
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. Vehicles with
adiesel engine: the fuel tank has been run dry.
X Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. 00BB
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be
afault, for example:
R in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at aqualified
specialist workshop. Troubleshooting
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Problem Possible causes/consequences and
0050
0050Solutions You hear
awarning
tone. The red distance warning lamp*
00BAlights up while the vehicle
is in motion.
X Observe the explanations for the distance warning lamp*
(Y page 232). Accident
Problem Possible causes/consequences and
0050 0050Solutions Fuel is leaking from the
vehicle.
G
Risk of fire
The fuel line or the fuel tank has been damaged. The leaking fuel
creates arisk of fire or explosion.
X Switch off the ignition immediately.
X Remove the ignition key.
Do not restart the engine under any circumstances. The leaking
fuel creates arisk of fire or explosion.
X Consult aqualified specialist workshop. You are unable to
determine the extentof
the damage.
X
Consult aqualified specialist workshop. You cannot detect any
damage.
X
Start the engine as normal. The active bonnet func-
tion (pedestrian protec-
tion) has been trig-
gered. Your vehicle has been involved in
afrontal collision.
X Reset the triggered active bonnet (pedestrian protection)
(Y page 256). The NECK-PRO head
restraint
sonthe driv-
er's and front-
passenger seats have
been triggered. Your vehicle has been involved in
arear-end collision.
X Reset the NECK-PRO head restraint s(Ypage 257). 238
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Seat belt
Problem Possible causes/consequences and
0050
0050Solutions The seat-belt extender
is unable to be retrac-
ted.
G
Risk of injury
The seat-belt extender is defective.
X Push back the seat-belt extender with force.
X Have the seat-belt extender checked at aqualified specialist
workshop.
If the seat-belt extender is unable to be pushed back:
X Do not drive on.
X Consult aqualified specialist workshop. Fuel and fuel tank
Problem Possible causes/consequences and
0050 0050Solutions Fuel is leaking from the
vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is defective.
X Turn the key to position 0(Y page 65) in the ignition lock imme-
diately and remove it.
X Do not restart the engine under any circumstances.
X Consult aqualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not released.
Or:
The key batteries are discharged.
X
Unlock the vehicle (Y page 249).
Or:
X Unlock the vehicle using the emergency key element
(Y page 249). The fuel filler flap is released, but the opening mechanism is jam-
med.
X
Consult aqualified specialist workshop. Troubleshooting
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