lock MERCEDES-BENZ E-CLASS SALOON 2015 Service Manual

Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 404).
or
X Jump-start the vehicle (Y page 405).
or
X Consult aqualified specialist workshop. Only for vehicles with
manual transmission:
The engine cannot be
started using the key. The steering lock is mechanically blocked.
X Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. There is interference from
apowerful source of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the out-
side, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. You can deac- tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 91).
The doors can then be opened from the inside after the vehicle has been locked from the
outside.
The anti-theft alarm system is triggered if thedoor is opened from the inside. Switch off the
alarm (Y page 89).
All countries: G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncomingt raffic
R operate vehicle equipment and become
trapped, for example 100
DoorsOpening and closing

In addition, the childre
ncould also set the
vehicle in motion, for example ,ifthey:
R release the parking brake
R shift the automatic transmission out of park
positio nPors hift manualt ransmission into
neutral
R start the engine
There is arisk of an accident and injury.
When leaving the vehicle ,always take the key
with you and lock the vehicle .Never leave
childre nand animal sunattended in the vehi-
cle. Keep the keys out of the reach of children.
Stow luggage or loads preferably in the boot/
luggage compartment. Observe the loading
guidelines (Y page 342). Unlockinga
nd opening the doors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
If the vehicle has previously been locked from
the outside, opening adoor from the inside
willt rigger the anti-theft alarm system.
Switch off the alarm (Y page 89).
United Kingdom only: if the vehicle has
been locked with the key from the outside,
the double-lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle .You can deac-
tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 91).
The doors can then be opened from the inside after the vehicle has been locked from the
outside. The anti-theft alarm system is trig-
gered if the door is opened from the inside.
Switch off the alarm (Y page 89).
For all countries: you can only open the rear
doors from inside the vehicle if they are not
secured by the child-proo flocks (Y page 76). X
Pulld oor handle ;.
If the door is locked, locking knob :pops
up. The door is unlocked and can be
opened. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. X
To unlock: press button :.
X To lock: press button ;.
If all the doors are closed, the vehicle locks.
This does not lock or unlock the fuel filler flap.
If the vehicle has been locked from the out-
side, it cannot be centrally unlocked from the inside.
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
United Kingdom only: you can only open a
door from inside the vehicle if the double-lock
function has been deactivated. You can deac- Doors
101Opening and closing Z

tivate the double lock functio
nbydeactivat-
ing the interior motion senso r(Ypage 91).
Fo ra ll countries: Youc an onl yopent he rear
doors fro minsid ethe vehicl eiftheya renot
secured by the child-proo floc ks (Y page 76).
When aloc ked door is opene dfromi nsid ethe
vehicle, the previou sunlocking proces swill
be observe difthe vehicl ehasbeen:
R locked with the locking button for the cen-
tra lloc king or
R locked automatically
Th ev ehicl ewillbef ullyunlocke difithadpre-
viousl ybeenf ully unlocked. Onl ythe door
which ha sbeeno penedf romt he insid eis
unlocke difonlyt he driver's door ha dbeen
previousl yunlocked. Automatic lockin
gfeature X
To deactivate: press and hold button :
for abou tfives econd suntilat one sounds.
X To activate: press and hold button ;for
abou tfives econd suntilat one sounds.
i If yo
upress one of the two buttons and do
not hear atone ,the relevant setting has
already been selected.
Th ev ehicl eislocked automaticall ywhent he
ignition is switched on and the wheels are
turning. Yo
uc ould therefore be locked ou tif:
R the vehicl eisbeing pushed.
R the vehicl eisbeing towed.
R the vehicl eisbeing tested on adynamom-
eter.
Yo uc an also switch the automatic locking
functio nonand off using the on-board com-
puter (Y page 293). Unlockin
gthe driver' sdoor(em er-
genc ykeyelement)
If the vehicl ecan no longe rbeunlocke dwith
the key ,use the emergency key element.
X Take the emergency key element ou tofthe
key (Y page 97).
X Insert the emergency key element into the
lock of the driver's door as fa rasitwillg o. X
Turn the emergency key element anti-
clockwise to position 1.
Th ed oorisu nlocked.
i On right-hand-drive vehicles
,tur nt he
emergency key element clockwise.
X Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key.
If yo uusethe emergency key element to
unlock and open the driver's door, the anti-
theft alar msystemw illbet riggered
(Y page 89). 102
DoorsOpenin
gand closing

Locking th
evehicle (emergency key
element)
If th evehicle can no longer be locked with the
key, use th eemergency key element.
X Open th edriver' sdoor.
X Close th efront-pa ssenger door ,the rear
door sand th eboot lid/tailgate.
X Pres sthe locking button (Y page 101).
X Chec kwhether th elocking knobs on the
front-passenger door and th erear doors
are still visible. Pres sthe locking knobs
down by han difnecessary.
X Close th edriver' sdoor.
X Take th eemergency key element out of the
key (Y page 97).
X Inser tthe emergency key element int othe
lock of th edriver' sdoor as far as it will go. X
Turn th eemergency key element clockwise
to position 1.
The door is unlocked.
i On right-hand-driv
evehicles, tur nthe
emergency key element anti-clockwise.
X Turn th eemergency key element back and
remove it.
X Mak esure that th edoor sand th eboot lid/
tailgate are locked.
X Inser tthe emergency key element int othe
key. Boot/luggage compartment
Important safety notes
G
WARNING
Combustio nengine semit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter th evehicle interio riftheboot
lid/tailgat eisopen when th eengine is run-
ning, especially if th evehicle is in motion.
Ther eisar isk of poisoning.
Always switch off th eengine before opening
th eb oot lid/tailgate. Never driv ewith the
boot lid/tailgat eopen.
! The boot lid/tailgat
eswings upwards and
to th erear when opened. Therefore, make
sure that there is sufficient clearance
above and behin dthe boot lid/tailgate.
i Boo
tlid/tailgat eopening dimensions
(Y page 481).
Stow luggage or loads preferably in th eboot/
luggage compartment. Observe th eloading
guidelines (Y page 342).
Do no tleave th ekey in th eboot/luggage
compartment. You could otherwise lock your- self out.
Saloon without th eboot lid convenience
closing feature: theb oot lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R unlocked with th eemergency key element
Saloon with th eboot lid convenience clos-
ing feature: theb oot lid can be:
R opened and closed manually from outside
R opened and closed automatically from out-
side
R opened and closed automatically from
inside
R unlocked with th eemergency key element Boot/luggage compartment
103Opening and closing Z

Estate:
you can:
R open and close th etailgate manually from
outside
R open th etailgate manually from inside
(Estat ewithafolding bench seat)
R open and close th etailgate automatically
from outside
R open and close th etailgate automatically
from inside
R limit th eopening angl eofthetailgate
R unlock th etailgate usin gthe emergency
key element Boot lid/tailgate reversing function
The boot lid/tailgat eisequipped with an
automatic reversing feature. It reacts if asolid
object obstructs or restrict sthe boot lid/tail-
gat edurin gthe closin gprocedure .The boot
lid/tailgat eopen sagain automatically. The
automatic reversing function is only an aid
and is no tasubstitut efor your attentiveness
to th eboot lid/tailgat ewhile it is closing. G
WARNING
The reversing function does no treact:
R to soft, light and thin objects, e.g .small fin-
gers
R over th elast 8mmoft heclosin gpath
This mean sthatthe reversing feature cannot
prevent someon ebeingtrapped in these sit-
uations .Ther eisar isk of injury.
When closin gmakes ure that no body parts
are in th eclosin garea.
If someon eistrapped:
R pres sthe F button on th ekey or
R pull or pres sthe remot eoperatin gswitch
on th edriver' sdoor or
R pres sthe closin gorlockin gbutton on the
boot lid/tailgate, or
R pull th ehandle on th eboot lid/tailgate Opening/closin
gfromt heoutside
Opening Handle (example
:Saloon)
X Pres sthe % button on th ekey.
X Saloon: pull handle :.
X Raise th eboot lid.
Estate: if you pull handle :and kee pitinthis
position ,you can open th etailgate manually.
If you releas ethe handle, th etailgate opens
automatically.
Closing Recess (example
:Saloon)
X Pull th eboot lid/tailgat edown using
recess :.
X Estate: let thetailgate drop int othe lock.
X Loc kthe vehicle if necessar ywith the &
button on th ekey (Y page 95 )orwith KEY-
LESS-GO (Y page 95).104
Boot/luggage compartmentOpening and closing

X
Lock the vehicle if necessary with the &
button on the key (Y page 95) or with KEY-
LESS-GO (Y page 95).
X If necessary ,lock the vehicle with the &
button on the key (Y page 95).
i If
aK EYLESS-GO key is detected in the
boot/luggage compartment, the boot lid/
tailgate willn ot lock.
Saloon: the boot lid then opens again. Opening/closing automatically from
the outside
Important safety notes United Kingdom only:
G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside .Peopl eint he vehicle can no longer get
out, e.g. in hazardous situations. There is a
risk of injury.
Therefore ,donot leave any peopl eunsuper-
vised in the vehicle ,particularly children, eld-
erly peopl eorpeopleinn eed of specia lassis-
tance. Do not activate the double lock when
peopl eare in the vehicle.
If the vehicle has been locked from the out-
side, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle .You can deac-
tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 91).
The doors can then be opened from the inside after the vehicle has been locked from the
outside.
The anti-theft alarm system is triggered if thedoor is opened from the inside .Switch off the
alarm (Y page 89).
All countries: G
WARNING
Parts of the body could become trapped dur-
ing automatic closing of the boot lid or tail- gate. Moreover, people, e.g. children, may be
standing in the closing area or may enter the
closing area during the closing process. There
is ar isk of injury.
Make sure that nobody is in the vicinity of the closing area during the closing process.
Use one of the following options to stop the
closing process:
R press the Fbutton on the key
R pullorp ress the remote operating switch
on the driver's door
R press the closing or locking button on the
boot lid/tailgate
R pullt he handle on the boot lid/tailgate
! The boot lid/tailgate swings upwards and
to the rear when opened. Therefore ,make
sure that there is sufficient clearance
above and behind the boot lid/tailgate.
i Boot lid/tailgate opening dimensions
(Y page 481).
Opening You can open the boot lid/tailgate automati-
callyw ith the key or the handle in the boot
lid/tailgate.
X Press and hold the Fbutton on the key
until the boot lid/tailgate opens.
or X If the boot lid/tailgate is unlocked, pullt he
handle of the boot lid (Y page 104)/tailgate
(Y page 104) and let it go again immedi-
ately. Boot/luggage compartment
105Opening and closing Z

Closing
Closin
gbutto nand lockin gbutto n(example:
Saloon)
Saloon: for vehicle switht he boot lid remote
closin gfeature, you can automaticall yclose
th eb oot lid. For vehicle switht he boot lid
remot eclosin gfeature and KEYLESS-GO :you
can simultaneously close th eboot lid and lock
th ev ehicle.
Estate: for vehicle swithK EYLESS-GO ,you
can simultaneously close th etailgat eand
loc kthe vehicle.
X To close: pressclosin gbutton :in the
boot lid/tailgate.
X To simultaneously close th eboot lid/
tailgate and lock th evehicle:
Press lockin gbutton ;in th eboot lid/
tailgate. The KEYLESS-GO ke ymust be in
th er ear detection range of th evehicle.
The boot lid/tailgat ecloses.
If all th edoor sare closed, th evehicle locks.
i If KEYLESS-GO detect
sakeyin th eboot/
luggage compartment, th eboot lid/tail-
gat eopen sagain after it is closed.
If KEYLESS-GO detect sasecon dkeyout-
side th evehicle ,the boot lid/tailgate
remains closed. HANDS-FREE ACCESS
Important safety notes G
WARNING
The vehicle exhaust system can become very
hot .Ify ou use HANDS-FRE EACCESS ,you
coul dburn yourself by touching th eexhaust
system. Ther eisariskofi njury. Always
ensure that you only mak ealeg movement
within th edetection range of sensors.
! If th
ekeyis within th erear detection
range of KEYLESS-GO ,situations suc has
th ef ollowin gcould lead to th euninten-
tional opening of th eboot lid/tailgate:
R usin gac ar wash
R usin gah igh-pressur ecleaner
Mak esure that th ekeyis at least 3maway
from th evehicle.
General notes Saloon:
withK EYLESS-GO and HANDS-FREE
ACCESS ,you can open or close th eboot lid or
stop th eclosin gprocedure without usin gyour
hands.
Estate: withK EYLESS-GO and HANDS-FREE
ACCESS ,you can open or close th etailgat eor
stop th eprocedure without usin gyour hands.
This is useful if you have your hands full. To do
this, mak eakickingmovemen tunde rthe
bumpe rwithy our foot.
Observ ethe followin gpoints:
R Carr yyour KEYLESS-GO ke yabout your
person .The KEYLESS-GO ke ymust be in
th er ear detection range of th evehicle.
R When making th ekickin gmovement, make
sure that you are standing firmly on the
ground and that there is sufficient clear-
anc etot herear of th evehicle .You could
otherwise lose your balance, e.g .onice. 106
Boot/luggage compartmentOpening and closing

R
press the closin gorlocking button on the
tailgate or
R press the Fbutton on the key
If the tailgate closin gprocedure has been
stopped:
R move your foot under the bumper again and
the tailgate will open
If the tailgate openin gprocedure has been
stopped:
R move your foot under the bumper again and
the tailgate will close Opening/closing automatically from
the inside
Importan tsafet ynotes G
WARNING
Parts of the body could become trapped dur-
ing automatic closin gofthe boot lid or tail-
gate. Moreover, people, e.g. children ,may be
standing in the closin garea or may enter the
closin garea during the closin gprocess. There
is ar isk of injury.
Make sure that nobody is in the vicinity of the closin garea during the closin gprocess.
Use one of the following option stostop the
closin gprocess:
R press the Fbutton on the key
R pull or press the remot eoperatin gswitch
on the driver' sdoor
R press the closin gorlocking button on the
boot lid/tailgate
R pull the handle on the boot lid/tailgate
! The boot lid/tailgate swings upwards and
to the rear when opened. Therefore, make
sure that ther eissufficient clearance
above and behind the boot lid/tailgate.
i Boot lid/tailgate openin
gdimensions
(Y page 481). Opening and closing
X
To open: pull remot eoperatin gswitc hfor
boot lid/tailgate :until the boot lid/tail-
gate opens.
X To close (Saloon): press remoteoperating
switc hfor boot lid :until the boot lid is
completely closed.
X To close (Estate): turn the key to position
1 or 2in the ignition lock.
X Press remot eoperatin gswitc hfor tail-
gate :until the tailgate is completely
closed.
You can open and close the boot lid/tailgate from the driver' sseat when the vehicle is sta-
tionary and unlocked. Limiting the opening angle of the tail-
gate (Estate)
Importan tsafet ynotes !
Make sure ther
eissufficient clearanc eto
open the tailgate fully when setting the
openin gangle. The tailgate could otherwise
be damaged. Ideally, set the openin gangle
outside.
Activating You can limit the openin
gangle of the tail-
gate. This is possible in the top half of its
openin grange, up to approximately 20 cm
before the stop. 108
Boot/luggage compartmentOpening and closing

X
To ope nthe tailgate: pull the handl eon
the tailgate.
X To sto pthe opening procedure at the
desire dposition: press the closing button
(Y page 105 )inthe tailgate or pull the han-
dl eont he outside of the tailgate again.
X To store the position: press and holdthe
closing button in the tailgate unti lyou hear
as hort tone.
The opening angle limite risactivated .The
tailgate then stop sinthe stored position
when opened.
Deactivating X
Press and hol dthe closing button
(Y page 105 )inthe tailgate unti lyou hear
two short tones. Opening the tailgate from inside the
vehicle (Estate with afolding bench
seat)
General notes !
The tailgate swing
supwar ds and to the
rea rwheno pened. Therefore ,makes ure
tha tther eiss ufficient clearance above and
behind the tailgate.
i Opening dimensions of the tailgate
(Y page 481)
Opening Inside of tailgate X
To unloc kthe tailgate: slideloc king
catch ;to the right.
X To open: pull the top of handle :.
X Lif tthe tailgate upwards.
X To lock the tailgate: slideloc king catch ;
to the left. Unlockin
gthe boot (Saloon)
! The boot li
dswing su pwar ds when
opened. Therefore ,makes uret hatther eis
sufficient clearance above the boot lid.
If the boot canno tbeu nlocke dwitht he key or
KEYLESS-GO ,use the emergency key ele-
ment.
If yo uusethe emergency key element to
unlock and open the boot lid, the anti-theft
alar msystem will be triggered (Y page 89).
X Take the emergency key element ou tofthe
key (Y page 97).
X Insert the emergency key element into the
boot li dlocka sfar as the stop. X
Turn the emergency key element from posi-
tion 1anti-clockwise as fa rasitwillgoto
position 2.
The boot is unlocked.
X Turn the emergency key element back to
position 1and remove it.
X Insert the emergency key element into the
key. Boot/luggage compartment
109Opening and closing Z

Tailgate emergenc
yreleas e(Estate)
General notes !
The tailgate swing
supwar ds and to the
rea rwheno pened. Therefore ,makes ure
tha tther eiss ufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 481).
If the tailgate can no longe rbeopenedf rom
outside the vehicle, us ethe emergency
release on the insid eofthe tailgate.
On vehicles with afolding bench seat, yo ucan
open the tailgate fro minsid ethe vehicl eusing
the handl e(Ypage 104).
Opening X
Fol dthe rea rseatb ackres tforwards
(Y page 349).
X Remov ethe luggag ecompartment cover
(Y page 352).
X Take the emergency key element ou tofthe
key (Y page 97).
X Insert emergency key element ;into the
opening in trim :.
X Turn emergency key element ;90° clock-
wise.
X Push emergency key element ;in the
direction of the arrow and open the tail-
gate.
X Insert the emergency key element into the
key. Side windows
Important safety notes
G
WARNING
Whil eopening the side windows ,bod yp arts
could become trapped between the side win- do wa nd the door frame as the side window
moves. There is ariskofi njury.
Make sure tha tnobod ytouche sthe side win-
do wd uringt he opening procedure. If some-
body become strapped ,release the switch or
pull the switch to close the side windo wagain. G
WARNING
Whil eclosing the side windows ,bod yp arts in
the closing area could become trapped .There
is ar iskofi njury.
When closing make sure tha tnoparts of the
body ar einthe closing area .Ifsomebody
become strapped ,release the switch or press
the switch to open the side windo wagain. G
WARNING
If children operate the side windows they
could become trapped ,particularly if the yare
left unsupervised .There is ariskofi njury.
Activate the override featur efor the rea rside
windows .Whenleavi ng the vehicle, always
take the key with yo uand lock the vehicle.
Never leav echildren unattended in the vehi-
cle. Side windo
wreversin gfeature
The side windows ar eequippe dwithana uto-
matic reversing feature. If asolid object
blocks or restricts asidew indo wd uring the
closing process, the side windo wopens again
automatically. The automatic reversing fea-
tur eish oweve ronlyana idand is no substi-
tute for your attentio nwhenc losing aside
window. 110
Side
windowsOpenin gand closing