the instrument cluster does not flash. In such
situations, ESP
®
will not stabilize the vehicle.
It may be best to deactivate ESP ®
in the
following situations:
R when using snow chains
R in deep snow
R on sand or gravel
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability.
R traction control is still activated.
R PRE-SAFE ®
is no longer available, nor is it
activated if you brake firmly and ESP ®
intervenes.
R PRE-SAFE ®
Brake is no longer available; it
is also not activated if you brake firmly and
ESP ®
intervenes.
R ABS still provides support when you brake.
R engine torque is no longer limited and the
drive wheels are able to spin. The spinning
wheels produce a cutting effect for better
traction.
Vehicles with ECO start/stop function: the
ECO start/stop function switches the engine
off automatically when the vehicle comes to
a stop. The engine starts automatically when
the driver wants to pull away again. ESP ®
remains in its previously selected status.
Example: if ESP ®
was deactivated before the
engine was switched off, ESP ®
remains
deactivated when the engine is switched on
again. EBD (electronic brake force
distribution)
i Observe the "Important safety notes"
section ( Y page 67).G
WARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This
increases
the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have the brake system checked at a qualified
specialist workshop.
Observe information regarding indicator and
warning lamps ( Y page 278) as well as
display messages
(Y page 248).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking. ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In
addition to the braking function, ADAPTIVE
BRAKE also has the HOLD function
(Y page 196) and hill start assist
(Y page 156). PRE-SAFE
®
Brake
i Observe the "Important safety notes"
section ( Y page 67).
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
PRE-SAFE ®
Brake can help you to minimize
the risk of a collision with a vehicle ahead or
reduce the effects of such a collision. If PRE-
SAFE ®
Brake detects a risk of collision, you
will be warned visually and acoustically as
well as by automatic braking. PRE-SAFE ®
Brake cannot prevent a collision without your
intervention.
Above a speed of around 4 mph (7 km/h), this
function warns you if you are very quickly
approaching a vehicle in front. An
intermittent warning tone will then sound and
the · distance warning lamp will light up
in the instrument cluster.
X Brake immediately in order to increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.72
Driving safety systems
Safety
G
WARNING
The sliding sunroof is made out of glass. In the
event of an accident, the glass may shatter.
This may result in an opening in the roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening
also presents a potential for injury for
occupants wearing their seat belts properly,
as entire body parts or portions of them may
protrude from the passenger compartment.
! Only open the sliding sunroof if it is free
of snow and ice. Otherwise, malfunctions
may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
! The weather can change abruptly. It could
start to rain or snow. Make sure that the
sliding sunroof is closed when you leave the
vehicle. The vehicle electronics can be
damaged if water enters the vehicle
interior.
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.
Your vehicle may be equipped with a sliding
sunroof or a panorama roof with power tilt/
sliding panel. In this section, the term "sliding
sunroof" refers to both types of sliding
sunroof. Operating the sliding sunroof
Opening and closing Overhead control panel
:
To raise
; To open
= To close/lower
X Turn the SmartKey to position 1
or 2 in the
ignition lock.
X Press or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
The automatic opening and raising feature
is available only when the sliding sunroof is
closed.
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.
i You can continue to operate the sliding
sunroof after switching off the engine or
removing the SmartKey from the ignition
lock. This function remains active for five
minutes or until you open a front door.
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting,
contact a qualified specialist workshop. Sliding sunroof
97
Opening/closing Z
Reset the sliding sunroof if it does not move
smoothly.
X
Turn the SmartKey to position 2 in the
ignition lock.
X Raise the sliding sunroof fully at the rear
(Y page 97).
X Keep the 3 switch pressed for another
second.
X Make sure that the sliding sunroof can be
fully
opened and closed again (Y page 97).
X If this is not the case, repeat the steps
above again. Operating the panorama roof with
power tilt/sliding panel
Overhead control panel
:
To raise
; To open
= To close/lower
The panorama roof with power tilt/sliding
panel can only be operated when the roller
sunblind is open.
X To open and close: turn the SmartKey to
position 1 or 2 in the ignition lock.
X Press or pull the 3 switch in the
corresponding direction.
i If you press the 3 switch beyond the
point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again. Operating the roller sunblinds for the
panorama
roof with power tilt/sliding
panel
Important safety notes G
WARNING
When opening or closing the roller sunblinds,
make sure that no one can be injured.
The
roller sunblinds have automatic operation
and an anti-entrapment feature. If the roller
sunblinds are blocked during the closing
procedure, the anti-entrapment feature stops
the roller sunblinds and they open again
slightly.
The opening and closing of the roller
sunblinds can be terminated immediately by
releasing the button. In automatic operation,
press the button briefly in any direction to
stop the roller sunblinds.
The roller sunblinds shield the vehicle interior
from sunlight. The two roller sunblinds can
only be opened and closed together when the
panorama roof with power tilt/sliding panel
is closed.
Opening and closing Overhead control panel
:
To open
; To open
= To close98
Sliding sunroof
Opening/closing
Problems with the sliding sunroof
G
WARNING
You could be severely or even fatally injured when closing the sliding sunroof with increased
closing force or if the anti-entrapment feature is deactivated. Make sure that nobody can become
trapped when closing the sliding sunroof. G
WARNING
Pressing and holding the sliding sunroof switch to close the sliding sunroof immediately after it
had been blocked two times will cause the sliding sunroof to close without the anti-entrapment
feature for as long as you hold the switch.
! If
the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact
a qualified specialist workshop.
Your vehicle may be equipped with a sliding sunroof or a panorama roof with power tilt/sliding
panel. In this section, the term "sliding sunroof" refers to both types of sliding sunroof. Problem Possible causes/consequences and
M SolutionsThe sliding sunroof
cannot be closed and
you cannot see the
cause. If the sliding sunroof is obstructed during closing and reopens
again slightly:
X
Immediately after the sliding sunroof blocks, pull the 3
switch in the overhead control panel down to the point of
resistance and hold it until the sliding sunroof is closed.
The sliding sunroof is closed with increased force.
If the sliding sunroof is obstructed again during closing and
reopens again slightly:
X Immediately after the sliding sunroof blocks, pull the 3
switch in the overhead control panel down to the point of
resistance and hold it until the sliding sunroof is closed.
The sliding sunroof is closed without the anti-entrapment
feature. 100
Sliding sunroof
Opening/closing
Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat. G
WARNING
Make sure that the back of your head is
supported at eye level by the central area of
the head restraint. If your head is not
supported
correctly by the head restraint, you
could suffer a severe neck injury in the event
of an accident. Never drive if the head
restraints are not engaged and set correctly. G
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before setting the vehicle in motion. G
WARNING
Do not adjust the driver's seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never
travel in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. This could cause serious or
fatal injuries. The seat backrest and seat belts
provide the best restraint when the wearer is
in a position that is as upright as possible and
seat belts are properly positioned on the
body. G
WARNING
Your seat belt must be adjusted so that you
can correctly fasten your seat belt. Observe the following points:
R
adjust
the seat backrest until your arms are
slightly angled when holding the steering
wheel.
R adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly.
R adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level.
R never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
WARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats
than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
! To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat Seats
103
Seats, steering wheel and mirrors Z
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats.
Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see "Interior care".
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
i The head restraints in the front seats are
installed with the NECK-PRO system
(Y page 53). For this reason, it is not
possible to remove the head restraints
from the front seats. Vehicles without the through-loading
feature: 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 (Sedan) ( Y page 293)
R EASY-PACK through-loading feature in
the rear bench seat (Wagon)
(Y page 294) Adjusting the seats
:
Head restraint height
; Seat cushion angle
= Seat height
? Seat fore-and-aft adjustment
A Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an
unfavourable position.
i You can store the seat settings using the
memory function ( Y page 116).
i Vehicles with the through-loading
feature: if you fold down a rear seat
backrest, the respective front seat is
moved forwards slightly in order to avoid
contact. 104
Seats
Seats, steering wheel and mirrors
X
Release the rear seat backrest and fold it
slightly forwards
(Y page 293).
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 re-install: 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 active multicontour
seat
Overview :
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
A To adjust the contour of the backrest to
increase/decrease support
B To adjust the height/depth of the
backrest contour
The active multicontour seat on the driver's
side automatically adapts the sides of the
backrest
to your current driving style. You can
adjust the contour of the seats individually so
as to provide optimum support for your back
and sides. Dynamic function The dynamic function adjusts the air cushions
in the side bolsters of the seat backrests to
ensure ideal lateral support at all times.
X
To switch on: 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.
You can choose between two different levels. Level 1 (one
indicator 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
indicator lamps) Sport setting:
increased lateral
support and fast
build-up of pressure
in the side bolsters
of
the seat backrest. 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. Seats
107
Seats, steering wheel and mirrors Z
If the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y page 241):
R
the
exterior mirrors fold in automatically as
soon as you lock the vehicle from the
outside.
R the exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror out of position If an exterior mirror has been pushed out of
position, proceed as follows:
X
Vehicles without electrically folding
exterior
mirrors: move the exterior mirror
into the correct position manually.
X Vehicles with electrically folding
exterior
mirrors (only for Canada): press
and hold mirror-folding button : until you
hear a click and then the mirrors engage in
position (Y page 114).
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 114). Automatic anti-glare mirrors
G
WARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view
mirror,
for instance, by luggage piled too high
in the vehicle, the mirror's automatic anti-
glare function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident. The rear-view mirror and the exterior mirror
on
the driver's side automatically go into anti-
glare mode if the following conditions are met
simultaneously:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior
lighting is switched on. Parking position for the exterior
mirror on the front-passenger side
Setting
and storing the parking position Using reverse gear
You can position the front-passenger side
exterior
mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
X Make sure that the vehicle is stationary and
that the SmartKey is in position 2 in the
ignition lock.
X Press button ; for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button = to adjust the
exterior
mirror to a position that allows you
to see the rear wheel and the curb.
The parking position is stored. Mirrors
115
Seats, steering wheel and mirrors Z