light MERCEDES-BENZ E-CLASS SALOON 2011 Service Manual

Problem Possible causes/consequences and
M Solutions
You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 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 350).
or
X Jump-start the vehicle (Y page 354).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the key.
The steering lock is mechanically blocked
6
.
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. Ad
oor is open. Therefore, the key cannot be detected as easily.
X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the
vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people in need of special assistance if
the vehicle has been locked with the key. As
a result, they may not be able to free them-
selves in the event of an emergency. As a
result, they could be seriously or even fatally injured by prolonged exposure to extremely
high or low temperatures, for example. In this
case, rescuing people from outside the vehi-
cle is difficult.
Deactivate the interior motion sensor before
you lock the vehicle with the key. The doors
can then be opened from the inside after the
vehicle has been locked from the outside with
the key. G
WARNING
If children are left unsupervised in the vehicle,
they could:
6 Not on vehicles with the DIRECT SELECT lever. 88
DoorsOpening and closing

If the side window opens again slightly:
X
Immediately pull the corresponding switch
on the door control panel until the side win-
dow is completely closed (Y page 96).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released,
the side window has been reset correctly.
If this is not the case, repeatt he steps
above again. Problems with the side windows
Problem: aside window cannot be closed
because it is blocked by objects, e.g.
leaves in the window guide.
X Remove the objects.
X Close the side window.
Problem :aside window cannot be closed
and you cannot see the cause. G
WARNING
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when clos-
ing the side windows.
If a side window is obstructed during closing
and reopens again slightly:
X Immediately afte rthe window blocks, pull
the corresponding switch again until the
side window has closed.
The side window is closed with increased
force.
If a side window is obstructed again during
closing and reopens again slightly:
X Immediately after the window blocks, pull
the corresponding switch again until the
side window has closed.
The side window is closed without the anti-
entrapment feature. Sliding sunroof
Important safety notes
Your vehicle may be fitted with a sliding sun-
roof or a panorama sliding sunroof. In the fol-
lowing section, the term "sliding sunroof"
refers to both types of sliding sunroof. G
WARNING
Make sure that nobody can become trapped
when opening and closing the sliding sunroof.
If there is a risk of entrapment, release the
switch immediately. During automatic opera-
tion, push the switch briefly in any direction
to stop the sliding sunroof. G
WARNING
Children could injure themselves if they oper-
ate the sliding sunroof.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time. G
WARNING
The glass in the panorama sunroof could
break in an accident. If you are not wearing a
seat belt, there is a risk that you could be
thrown through the opening in the event of the
vehicle overturning. Therefore, always wear a
seat belt to reduce the risk of injuries.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usual airflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior.
Change the position of the sliding sunroof
or open a side window slightly to reduce or
eliminate these noises. 98
Sliding sunroofOpening and closing

Operating the sliding sunroof
Opening and closing i
You can continue to operate the sliding
sunroof after switching off the engine or
removing the key. This function remains
active for five minutes or until you open a
front door. Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 3switch in the corre-
sponding direction.
i If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing again.
The sun protection cover automatically opens
along with the sliding sunroof .You can open
or close the sun protection cover manually
when the sliding sunroof is raised or closed.
Rain-closing feature When the key is in position
0in the ignition
lock or is removed, the sliding sunroof closes
automatically:
R if it starts to rain
R at extreme outside temperatures R
after six hours
R if there is a malfunction in the power supply
The rear of the sliding sunroof is then raised
in order to ventilate the vehicle interior.
i If the sliding sunroof is obstructed when
being closed by the rain-closing feature, it
opens again slightly. The rain-closing fea-
ture is then deactivated.
The sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the wind-
screen being monitored by the rain sensor,
e.g. because the vehicle is under a bridge.
Resetting Reset the sliding sunroof if it does not move
smoothly.
X
Turn the key to position 1or 2in the ignition
lock.
X Raise the sliding sunroof fully at the rear
(Y page 99).
X Keep the 3switch pressed for another
second.
X Make sure that the sliding sunroof can be
fully opened and closed again (Y page 99).
X If this is not the case, repeat the steps
above again.
! If the sliding sunroof still cannot be
opened or closed fully after resetting, con-
tact a qualified specialist workshop. Sliding sunroof
99Opening and closing Z

Operating the panorama sliding sun-
roof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Push or pull the 3switch in the corre-
sponding direction.
i If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing again.
Rain closing feature When the key is in position
0in the ignition
lock or is removed, the panorama sliding sun-
roof closes automatically:
R if it starts to rain
R at extreme outside temperatures
R after six hours
R if there is a malfunction in the power supply
The panorama sliding sunroof remains raised
at the rear in order to allow ventilation of the
vehicle interior.
i If the panorama sliding sunroof is obstruc-
ted when being closed by the rain closing
feature, it opens again slightly. The rain
closing feature is then deactivated. The panorama sliding sunroof does not close
if:
R
it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the wind-
screen being monitored by the rain sensor,
e.g. because the vehicle is under a bridge. Operating the panorama sliding sun-
roof roller sunblinds
General notes The roller sunblinds shield the vehicle interior
from sunlight. The two roller sunblinds can
only be opened and closed together when the
panorama sliding sunroof is closed.
G
WARNING
Make sure that nobody can become trapped
as you open or close the roller sunblinds.
Opening and closing Overhead control panel
:
To open
; To open
= To close
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 3switch in the corre-
sponding direction.
i If you press the 3switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre- 100
Sliding sunroofOpening and closing

sponding direction. You can stop automatic
operation by pressing again.
Resetting the panoramas liding sunroof
and the roller sunblinds Reset the panorama sliding sunroof and the
roller sunblinds if the panorama sliding sun-
roof or the roller sunblinds do not move
smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the 3switch repeatedly to the point
of resistance in the direction of arrow =
until the panorama sliding sunroof is fully
closed.
X Keep the 3switch pulled for an addi-
tional second.
X Pull the 3switch repeatedly to the point
of resistance in the direction of arrow =
until the roller sunblinds are fully closed.
X Keep the 3switch pulled for an addi-
tional second.
X Make sure that the panorama sliding sun-
roof (Y page 100) and the roller sunblinds
(Y page 100) can be fully opened again.
X If this is not the case, repeat the steps
above again.
! If the panorama sliding sunroof and the
roller sunblind cannot be fully opened or
closed after resetting, contac taqualified
specialist workshop. Problems with the sliding sunroof
Your vehicle may be fitted with a sliding sun-
roof or a panorama sliding sunroof .Inthe fol-
lowing section, the term "sliding sunroof"
refers to both types of sliding sunroof.
Problem: the sunroof cannot be closed
and you cannot see the cause. G
WARNING
You could be severely or even fatally injured
when closing the sliding sunroof with increased closing force or if the anti-entrap-
ment feature is deactivated. Make sure that
nobody can become trapped when closing the
sliding sunroof.
If the sliding sunroof is obstructed during
closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 3switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
The sliding sunroof is closed with increased
force.
If the sliding sunroof is obstructed again dur-
ing closing and reopens again slightly:
X Immediately after the sliding sunroof
blocks, pull the 3switch in the over-
head control panel down to the point of
resistance and hold it until the sliding sun-
roof is closed.
The sliding sunroof is closed without the
anti-entrapment feature. Sliding sunroof
101Opening and closing Z

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 25).Correct driver's sea
tposition Observe the safety guidelines on seat adjust-
ment (Y
page 105).
X Chec kwhether you have adjusted seat =
properly.
Manual and electrical seat adjustment
(Y page 106)
Electrical seat adjustment (Y page 106)When adjusting the seat, make sure:
R
you are as far away from the driver's air-
bag as possible.
R you are sitting in a normal upright posi-
tion.
R you can fasten the seat belt properly.
R you have moved the backrest to an
almost vertical position.
R you have set the seat cushion angle so
that your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is adjus-
ted properly (Y page 107).
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the centre of the head restraint.
Observe the safety guidelines on steering
wheel adjustment (Y page 114).
X Check whether steering wheel :is adjus-
ted properly.
Adjust the steering wheel manually
(Y page 114)
Adjusting the steering wheel electrically
(Y page 115)
When adjusting the steering wheel, make
sure:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the instru-
ment cluster clearly.
Observe the safety guidelines for seat belts
(Y page 49).
X Check whether you have fastened seat
belt ;properly (Y page 51).104
Correct driver's seat positionSeats, steering wheel and mirrors

rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
i The head restraints in the front seats are
fitted with the NECK-PRO system
(Y page 49). For this reason, it is not pos-
sible to remove the head restraints from
the front seats.
Vehicles without the through-loading fea-
ture: the head restraints cannot be
removed from the rear compartment seats.
For more information, contact a qualified
specialist workshop.
i Further related subjects:
R Through-loading feature in the rear
bench seat (Saloon)
R EASY-PACK through-loading feature in
the rear bench seat (Estate) Adjusting the seats manually and
electrically :
Seat cushion angle
; Seat height =
Backrest angle
? Seat fore-and-aft adjustment
i Adjust the seat cushion angle so that your
thighs are lightly supported.
Seat fore-and-aft adjustment X
Lift handle ?and slide the seat forwards
or backwards.
X Release lever ?again.
Make sure that you heart he seat engage in
position. Adjusting the seats electrically
:
Head restraint height
; Seat cushion angle
= Seat height
? Seat fore-and-aft adjustment
A Backrest angle
i Vehicles with memory function: if PRE-
SAFE ®
has been triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfavour-
able position.
i You can store the seat settings using the
memory function (Y page 119).
i Vehicles with the through-loading feature
and memory function: if you fold down a
rear seat backrest, the respective front
seat is moved forwards slightly if neces-
sary. 106
SeatsSeats, steering wheel and mirrors

hand side bolster
:into the desired posi-
tion.
X To adjust the angle of the head
restraint: push or pull the head restraint in
the direction of arrow ;.
Rear seat head restraints Lowering the rear seat head restraints
from the front
X
Make sure that the key is in position 2in
the ignition lock.
X Press button :.
Adjusting the rear seat head restraint
height
Only the outer head restraints are height-
adjustable 10
. Example: Saloon Luxury head restraints (vehicles with luxury indi-
vidual rear seats)
X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :and push
the head restraint down until it is in the
desired position.
i If you pull the head restraint forward
slightly, the effort required to adjust it is
reduced.
Adjusting the rear seat head restraint
angle
Adjust the head restraintss o that they are as
close as possible to your head.
You can only adjust the two outer head
restraints. Example: Saloon
X
Pull or push the top of the head restraint
until it is in the desired position.
10 Only for certain vehicles. 108
SeatsSeats, steering wheel and mirrors

Fitting/removing the rea
rseat head
restraints 11 G
WARNING
Occupants should only travel sitting on seats
that have the head restraints fitted .This
reduces the risk of injury to the occupant in
the event of an accident. Example: Saloon
X
Release the rear seat backrest and fold it
slightly forwards (Y page 295).
X To remove: pull the head restraint up to
the stop.
X Press release catch :and pull the head
restraint out of the guides.
X To refit: insert the head restraint so that
the notches on the bar are on the left when
viewed in the direction of travel.
X Push the head restraint down until you hear
it engage in position.
X Fold back the rear seat backrest until it
engages. Adjusting the multicontour seat
You can adjust the contour of the front seats
individually so as to provide optimum support
for your back and sides. :
To adjust the thigh cushion
; To adjust the backrest contour in the lum-
bar region
= To adjust the backrest contour in the
upper back region
? To adjust the side bolsters of the seat
backrest
X Make sure that the key is in position 2in
the ignition lock. Adjusting the active multicontour
seat
The active multicontour seat automatically
adapts the sides of the backrest to your cur-
rent driving style. :
To adjust the seat cushion length
; To switch the dynamic function on or off
= To adjust the side bolsters of the seat
backrest
? To switch the massage function on or off
11 Only for vehicles with the through-loading feature. Seats
109Seats, steering wheel and mirrors Z

A
To adjust the contour of the backrest to
increase/decrease support
B To adjust the height/depth of the back-
rest contour
Dynamic function You can choose between two different levels.
Level
1(one indica-
tor lamp) Standard setting:
slightly increased
lateral support and
slow build-up of air
pressure in the side
bolsters of the seat
backrest.
Level
2(two indica-
tor lamps) Sport setting:
increased lateral
support and fast
build-up of pressure
in the side bolsters
of the seat backrest.
X
To switc hon:press button ;once or
twice until the desired level is set.
One or two indicator lamps in button ;
light up.
X To switch off: press button;repeatedly
until all indicator lamps in button ;go out.
Massage function (PULSE) The massage function helps you to prevent
muscle tension on long journeys. You can
choose between two levels.
X
To switch on: press button?once or
twice until the desired level is set.
One or two indicator lamps in button ?
light up. The air cushions in the lumbar
region vibrate for approximately
20 minutes. Adjusting the lumbar support
You can adjust the contour of the driver's seat
so as to provide optimum support for your
back. X
Move adjustment lever :in the direction
of the arrow until the desired backrest con-
tour is achieved. Adjusting the 4-way lumbar support
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. :
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour 110
SeatsSeats, steering wheel and mirrors