
X
To deactivate: press button0003until the
0014 ESP®
OFF warning lamp lights up in
the instrument cluster.
The 000COFF message appears in the
multifunctio ndisplay.
Deactivate ESP ®
when driving on
designated roads when the vehicle's own
oversteering and understeering
characteristics are desired. Driving without
ESP ®
requires an extremely qualified and
experienced drive rwho is able to cope with
these critical driving conditions.
X To activate: briefly press button 0003.
The 0014 ESP®
OFF warning lamp in the
instrumentc luster goes out. The 000CONmessage appears in the multifunction
display.
ESP ®
is activated automatically when the
engine is started.
If ESP ®
is deactivated and one or more wheels
start to spin, the ESP ®
000C warning lamp in
the instrumen tcluster 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 ESP ®
still provides support when you brake
firmly.
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 59). 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 244) as well as
display messages (Y page 214).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking. 64
Driving safety systemsSafety

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 177) and hill start assist
(Y page 139). PRE-SAFE
®
Brake
i Observe the "Importan tsafety notes"
sectio n(Ypage 59).
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 preven tacollision withoutyour
intervention.
Starting at a speed of around
20 mph (30 km/h), this function warns you if
you very quickly approach a vehicle in front.
An intermittent warning tone will then sound
and the 000Cdistance warning lamp will light
up in the instrument cluster.
X Brake immediately in orde rto increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.
From a speed of approximately
20 mph (30 km/h), if the driver and front
passenger have fastened their seat belts,
PRE-SAFE ®
Brake can brake the vehicle
automatically at speeds up to approximately
124 mph (200 km/h).
Due to the nature of the system, particularly
complicated driving conditions may cause
unnecessary warnings or the unnecessary
intervention of PRE-SAFE ®
Brake. You can prevent the intervention of the PRE-
SAFE
®
Brake at any time by:
R depressing the accelerator pedal further
R activating kickdown
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer any danger of a rear-end
collision.
R there is no longer an obstacle detected in
front of your vehicle.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
At speeds up to approximately
40 mph (70 km/h), PRE-SAFE ®
Brake can
also detect stationary obstacles such as
stopped or parked vehicles.
If you approach an obstacle and PRE-SAFE ®
Brake detects a risk of a collision, the system
will alert you both visually and acoustically. If
you do not brake or take evasive action, the
system will warn you by automatically braking
the vehicle gently. If there is an increased risk
of collision, preventative passenger
protection measures (PRE-SAFE ®
) are
activated (Y page 50).
If a risk of collision remains and you do not
brake, take evasive action or significantly
accelerate, automatic braking may be
performed up to a level of automatic
emergency braking. Automatic emergency
braking is not performed until immediately
prior to an accident that can no longer be
avoided. G
WARNING
PRE-SAFE ®
Brake will initially brake your
vehicle by a partial application of the brakes
if a danger of collision is detected. There may
be a collision unless you also brake.
Automatic emergenc ybraking cannot prevent
a collision. There is a risk of an accident. Driving safety systems
65Safety
Z

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 .Ifyour 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.T his 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
Children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint, 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.
Ac hild'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. G
WARNING
Children 12 years old and under must be
seated and properly secured in an appropriate
infant restraint, toddler restraint, or booster
seat recommended for the size and weight of
the child. Additional information can be found
under "Children in the vehicle".
Ac hild'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. Seats
95Seats, steering wheel and mirrors Z

High-beam headlamps
X
To switch on the high-beam headlamps:
turn the SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switch to 000Aor0005.
X Press the combination switch beyond the
pressure point in the direction of
arrow 0003.
In the 0005position, the high-beam
headlamps are only switched on when it is
dark and the engine is running.
The 0009 indicator lamp in the instrument
cluster lights up when the high-beam
headlamps are switched on.
X To switch off the high-beam
headlamps: move the combination switch
back to its normal position.
The 0009 indicator lamp in the instrument
cluster goes out.
High-beam flasher X
To switch on: turn the SmartKey in the
ignitio nlock to position 1or 2or start the
engine.
X Pull the combination switch in the direction
of arrow 0024. Hazard warning lamps
X
To switch on the hazard warning lamps:
press button 0003.
All turn signals flash. If you now switch on
a turn signal using the combination switch, only the turn signal lamp on the
corresponding side of the vehicle will flash.
X To switch off the hazard warning
lamps: press button 0003.
The hazard warning lamps automatically
switch on if:
R an air bag is deployed.
R the vehicle is slowed down rapidly from a
speed of over 45 mph (70 km/h) and
comes to a halt.
If the vehicle returns to a speed of over
6m ph (10 km/h) after a full application of the
brakes, the hazard warning lamps are
deactivated automatically.
i The hazard warning lamps still operate if
the ignition is switched off. Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is
operated five times (Y page 115) while the
lights are on and the engine is running. When
you switch off the ignition, the automatic
headlamp cleaning system is reset and
counting is resumed from 0. Cornering light function
The cornering light function improves the
illumination of the road over a wide angle in
the direction you are turning, enabling better
visibility in tight bends, for example. The
cornering light function can only be activated Exterior lighting
109Lights and windshield wipers Z

i
If you then open the driver's door when in
this position, the powers upply is
deactivated.
Switching on the ignition
X Press Start/Stop button 0003twice.
The ignition is switched on.
i The power supply is switched off if you
press Start/Stop button 0003twice when in
this position and the driver's door is open.
As soo nas the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
there may be a technical problem
(Y page 244).
Removing the Start/Stop button You can remove the Start/Stop button from
the ignition lock and start the vehicle as
normal using the SmartKey.
X Remove Start/Stop button 0003from ignition
lock 0004.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. Starting the engine
Important safety notes G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
! Do not depress the accelerator pedal
when starting the engine.
i AMG vehicles: the exhaust flap of the
exhaust system will be checked after every
cold start. Aresulting noise can be heard
during this process.
i During a cold start, the engine runs at
higher speeds to enable the catalytic
converter to reach its operating
temperature. The sound of the engine may
change during this time.
Manual transmission X
Depress the brake pedal and keep it
depressed.
X Fully depress the clutch pedal.
X Shift to neutral N.
i You can only start the engine when the
clutch pedal is fully depressed.
Automatic transmission X
Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
Starting procedure with the SmartKey X
Turn the key to position 3in the ignition
lock (Y page 135)a nd release it as soo nas
the engine is running.
i To start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock. Driving
137Driving an d parking Z

Transmission position and drive
program display
0003
Transmission positio ndisplay
0004 Drive program display
The current position of the selector lever is
shown by the indicators nex tto the selector
lever.
The indicators light up when the SmartKey is
inserted into the ignition lock. The indicators
go out when the SmartKey is removed from
the ignition lock. Transmission positions
0003
Park position
Do not shift the transmission into
position
P(Ypage 145) unless the
vehicle is stationary. The parking
lock should not be used as a brake
when parking. Always apply the
electronic parking brake in
addition to the parking lock in order
to secure the vehicle.
The key can only be removed if the
transmission is in position P. If the
SmartKey is removed from the
ignition lock, the selector lever is
locked.
If the vehicle electronics are
malfunctioning, the selector lever
may be locked in position P. To
release a locked selector lever, see
"Manual override of parking lock"
(Y page 152). 0004
Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. 146
Automatic transmissionDriving and parking

They could also operate the vehicle's
equipment. There is a risk of an accident and
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
i The electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal.
Engaging and releasing manually X
To engage: push handle 0003.
When the electric parking brake is
engaged, the 0005(USA only) or 000A
(Canada only) red indicator lamp lights up
in the instrument cluster.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: switch on the ignition.
X Pull handle 0003.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster goes out.
i The electric parking brake can only be
released:
R if the SmartKey is in position 1in the
ignition lock or
R if the ignition was switched on using the
Start/Stop button. Applying automatically The electric parking brake is applied
automatically:
R
if DISTRONIC PLUS brings the vehicle to a
standstill or
R if the HOLD function is keeping the vehicle
stationary
In addition, at least one of the following
conditions must be fulfilled:
R the engine is switched off.
R the driver's seat belt is not inserted in the
belt buckle and the driver's door is open.
R the vehicle is stationary for a lengthy
period.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument cluster
lights up.
Releasing automatically The electric parking brake is released
automatically when all of the following
conditions are fulfilled:
R
the engine is running.
R the transmission is in position Dor R.
R the driver's seat belt is fastened.
R you depress the accelerator pedal.
If the transmission is in position R, the trunk
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of Por you have
previously driven faster than 2mph
(3 km/h).
i The electric parking brake can only be
released automatically on vehicles with
automatic transmission. Parking
157Driving and parking Z

conditions
.This could cause damage to the
drive train. This type of damage is not
covered by the Mercedes-Ben zwarranty.
On long and steep downhill gradients,
especially if the vehicle is laden, you must
shif tto a lower gear in good time or select
shift range 1,2or 3in vehicles with automatic
transmission.
Heavy and light loads G
WARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
! Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the
airflow to cool the brakes more quickly.
Wet roads If you have driven for a long time in heavy rain
without braking, there may be a delayed
reaction from the brakes when braking for the
first time.
This may also occur after driving through
water deep enough to wet brake
components.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the
vehicle washed, brake firmly while paying
attention to the traffic conditions. This will
warm up the brake discs, thereby drying them
more quickly and protecting them against
corrosion. Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
R
Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
High performance and ceramic brake
system for AMG vehicles The high-performance brake system is
installed only on the SLK 55 AMG.
The AMG brake systems are designed for
heavy loads. This may lead to noise when
braking. This will depend on:
R
speed
R braking force
R ambient conditions, e.g. temperature and
humidity
The wear of individual components of the
brake system, such as the brake pads/linings
or brake discs, depends on the individual
driving style and operating conditions.
For this reason, it is impossible to state a
mileage that will be valid under all
circumstances. An aggressive driving style
will lead to high wear. You can obtain more
information on this from a qualified specialist
workshop.
New and replaced brake pads and discs only
reach their optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applying greater force
to the brake pedal. Keep this in mind, and
adapt your driving and braking accordingly
during this break-in period.
Excessive heavy braking results in
correspondingly high brake wear. Observe Driving tips
161Driving and parking Z