GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
The distance warning function may not give
warnings in all critical situations. There is a
risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
Always adapt your speed to suit the prevailing
road and traffic conditions.
GWARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at a speed of approximately 4 mph
(7 km/h), the distance warning function warns
you if you are rapidly approaching a vehicle in
front. An intermittent warning tone will then
sound, and the ·distance warning lamp will
light up in the instrument cluster.
XBrake immediately in order to increase the
distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the system to display a warning.
With the help of the radar sensor system, the
distance warning function can detect obstacles
that are in the path of your vehicle for an exten-
ded period of time. Up to a speed of approximately 44 mph
(70 km/h), the distance warning function can
also react to stationary obstacles, such as stop-
ped or parked vehicles.
Autonomous braking function
If the driver does not react to the distance warn-
ing signal in a critical situation, Active Brake
Assist can assist the driver with the autonomous
braking function.
Vehicles without Distance Pilot DISTRONIC:
the autonomous braking function is available in
the following speed ranges:
R4–65 mph (7–105 km/h) for moving objects
R4–31 mph (7–50 km/h) for stationary objects
Vehicles with Distance Pilot DISTRONIC: the
autonomous braking function is available in the
following speed ranges:
R4–124 mph (7–200 km/h) for moving objects
R4–31 mph (7–50 km/h) for stationary objects
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the Autonomous Braking Func-
tion to intervene.
If the autonomous braking function requires a
particularly high braking force, preventative
passenger protection measures (PRE-SAFE
®)
are activated simultaneously (Ypage 58).
Adaptive Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 66).
With the help of adaptive Brake Assist, the dis-
tance warning signal can detect obstacles that
are in the path of your vehicle for an extended
period of time.
If adaptive Brake Assist detects a risk of colli-
sion with the vehicle in front, it calculates the
braking force necessary to avoid a collision. If
you apply the brakes forcefully, adaptive Brake
Assist will automatically increase the braking
force to a level suitable for the traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardous situations at speeds above
4 mph (7 km/h). It uses radar sensor technology
to assess the traffic situation.
Up to a speed of approximately 155 mph
(250 km/h), Adaptive Brake Assist is capable of
68Driving safety systems
Safety
Off-road 4ETS (Electronic Traction Sys-
tem)
A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (
Ypage 181).
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
GWARNING
If ESP
®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP
®checked at a
qualified specialist workshop.
If the å ESP
®OFF warning lamp lights up
continuously, ESP®is deactivated.
If the ÷ ESP®warning lamp lights up contin-
uously, ESP®is not available due to a malfunc-
tion.
Observe the information on warning lamps
(
Ypage 271) and display messages which may
be shown in the instrument cluster
(
Ypage 240).
Only use wheels with the recommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the ÷ ESP®warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP
®intervenes, the ÷ESP®warning lamp
flashes in the instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pull away again. ESP
®
remains in its previously selected status, e.g. if
ESP®was deactivated before the engine was
automatically switched off.
Deactivating/activating ESP®(except
Mercedes ‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
You can select between the following states of
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Spinning the wheels results in a cutting action
which provides better grip.
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehicle if
the vehicle starts to skid or a wheel starts to
spin.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
70Driving safety systems
Safety
the vehicle starts to skid or a wheel starts to
spin.
Deactivating/activating ESP®
XTo activate SPORT handling mode:briefly
press button :.
The M SPORT handling mode warning
lamp in the instrument cluster lights up. The
SPORT
handlingmodemessage appears on
the multifunction display.
XTo deactivate SPORT handling mode:
briefly press button :.
The M SPORT handling mode warning
lamp in the instrument cluster goes out.
XTo deactivate ESP®: press button :until
the å ESP®OFF warning lamp lights up in
the instrument cluster.
The ÷ OFF
message appears on the mul-
tifunction display.
XTo activate ESP®: briefly press button :.
The å ESP®OFF warning lamp in the
instrument cluster goes out. The ÷ON
message appears on the multifunction dis-
play.
Characteristics of activated SPORT han-
dling mode
If SPORT handling mode is activated and one or
more wheels start to spin, the ÷ESP®warn-
ing lamp in the instrument cluster flashes. ESP®
only stabilizes the vehicle to a limited degree.
When SPORT handling mode is activated:
RESP®only improves driving stability to a limi-
ted degree.
RTraction control is still activated.
REngine torque is no longer limited and the
drive wheels are able to spin.
RESP®still provides support when you brake
firmly.
Characteristics when ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in the
instrument cluster does not flash. In such situa-
tions, ESP
®will not stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheels are able to spin.
RTraction control is still activated.
RActive Brake Assist is no longer available; nor
is it activated if you brake firmly with assis-
tance from ESP
®.
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®inter-
venes.
RPRE-SAFE®Brake is no longer available, it is
also not activated if you brake firmly and ESP®
intervenes.
RESP®still provides support when you brake
firmly.
Off-road ESP®
An ESP®system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (
Ypage 181).
Offroad ESP®intervenes with a delay if there is
oversteering or understeering, thus improving
traction.
ESP®trailer stabilization
General information
If your vehicle/trailer combination begins to
swerve, ESP®assists you in this situation. ESP®
slows the vehicle down by braking and limiting
the engine output until the vehicle/trailer com-
bination has stabilized.
Important safety notes
GWARNING
If road and weather conditions are poor,
trailer stabilization will not be able to prevent
72Driving safet ysystem s
Safety
the vehicle/trailer combination from swerv-
ing. Trailers with a high center of gravity can
tip over before ESP
®can detect this. There is
a risk of an accident.
Always adapt your driving style to the prevail-
ing road and weather conditions.
If your vehicle with trailer (vehicle/trailer com-
bination) begins to lurch, you can only stabilize
the vehicle/trailer combination by depressing
the brake firmly.
ESP
®trailer stabilization is active above speeds
of approximately 40 mph (65 km/h).
ESP
®trailer stabilization does not work if ESP®
is deactivated or malfunctioning.
Crosswind Assist
General information
Strong crosswind gusts can impair the ability of
your vehicle to drive straight ahead. The cross-
wind driving assistance function integrated in
ESP
®noticeably reduces these impairments.
ESP®intervenes automatically according to the
direction and intensity of the crosswinds affect- ing your vehicle.
ESP
®intervenes with stabilizing braking to
assist you in keeping the vehicle in the lane.
Crosswind Assist is active at vehicle speeds
above 50 mph (80 km/h) when driving straight
ahead or cornering gently.
Important safety notes
Crosswind Assist does not work if ESP®is
switched off or deactivated because of a mal-
function.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
GWARNING
If EBD is malfunctioning, the rear wheels can
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 spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (
Ypage 271) as well as display
messages (Ypage 242).
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 (
Ypage 178) and hill start
assist (Ypage 140).
Active Brake Assist with cross-traffic
function
General information
iObserve the important safety notes in the
"Driving safety systems" section (Ypage 66).
Active Brake Assist with cross-traffic function
can help you to minimize the risk of a collision
with a vehicle in front or a pedestrian and reduce
the effects of such a collision. If the Active Brake
Assist with cross-traffic function detects a risk
of collision, you will be warned visually and
acoustically and, if necessary, your brake appli-
cation will be assisted according to the situa-
tion. If you do not react, the system can also
react by braking automatically. In the event of a
detected risk of collision due to crossing traffic,
you will also be visually and acoustically warned
as well as assisted by the brake boosting effect
according to the situation.
Active Brake Assist with cross-traffic function is
only available in vehicles with the Driving Assis- tance Plus package.
Driving safet ysystem s73
Safety
Z
Recognition by theradar sensor system is also
impaire dif:
Rthere is dirt on th esensor sor anythin gelse
covering th esensor s
Rthere is interferenc eby other radar source s
Rthere are strongradar reflections, for exam-
ple in parking garages
Ra narrow vehicl eis traveling in front, e.g. a
motorbike
Ra vehicl eis traveling in fron ton adifferen tlin e
Rvehicles moving quickly int oth eradar sensor
system detection range
Recognition by th ecamera system is also
impaire din th eevent of:
Rdirt on th ecamera or if th ecamera is covered
Rglar eon th ecamera system, e.g. from th esun
bein glow in th esk y
Rdarkness
Ror if:
-pedestrian smov equickly, e.g. int oth epat h
of th evehicl e
-thecamera system no longer recognizes a
pedestrian as aperson due to special cloth -
ing or other objects
-a pedestrian is concealed by other objects
-th etypical outlin eof apedestrian is no t
distinguishable from th ebackgroun d
Followin gdamag eto th efron ten dof th evehicle,
hav eth econfiguration and operation of th e
radar sensor schecke dat aqualified specialist
workshop. This also applie sto collision sat slow
speeds wher ethere is no visible damag eto th e
fron tof th
eve
hicle.
Followin gdamag eto th ewindshield, hav eth e
configuration and operation of th ecamera sys-
te m checke dat aqualified specialist workshop.
Function
XTo activate or deactivate: activateor deac -
tivat eActive Brake Assist wit hcross-traffic
function usin gth eon-board computer
(
Ypage 232).
If Active Brake Assist wit hcross-traffic func-
tion is deactivated, th eæ symbol appear s
on th emultifunction display.
Starting at aspee dof aroun d 4mph (7 km/ h),
this function warns you if you are rapidly
approaching a vehicle in front. An intermittent
warning tone will then sound and the ·dis- tance warning lamp will light up in the instru-
ment cluster.
XBrake immediately to defuse the situation.
or
XTake evasive action provided it is safe to do
so.
Active Brake Assist with cross-traffic function
can also brake the vehicle automatically under
the following conditions:
Rthe driver and front passenger have their seat
belts fastened
Rthe vehicle speed is between approximately
4 mph (7 km/h) and 124 mph (200 km/h)
Up to a speed of approximately 44 mph
(70 km/h), Active Brake Assist with cross-traffic
function may react to:
Rstationary objects in the path of your vehicle,
e.g. stopped or parked vehicles
Rpedestrians in the path of your vehicle
iIf there is an increased risk of a collision,
pre ventive passenger protection measures
(PRE-SAFE®) are triggered (Ypage 58).
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking, up
to the point of full brake application. Automatic emergency braking is not performed until imme-
diately prior to an imminent accident.
If you apply the brake yourself in a critical sit-
uation or during autonomous braking, situation-
dependent braking assistance is implemented.
If necessary, this increases the brake pressure
up to full brake application.
To avoid a collision, Active Brake Assist with
cross-traffic function calculates the brake force
necessary if:
Ryou approach an obstacle, and
RActive Brake Assist with cross-traffic functionhas detected a risk of a collision
When driving at a speed under 20 mph
(30 km/h): if you depress the brake pedal,
Active Brake Assist with cross-traffic function is
activated. The increase in brake pressure from
Active Brake Assist with cross-traffic function is
carried out at the last possible moment.
When driving at a speed abo ve 2
0 mph
(30 km/h) : if you depress the brake pedal
sharply, Active Brake Assist with cross-traffic
Driving safet ysystem s75
Safety
Z
Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
Observe the following when adjusting steering
wheel :, seat belt ;and driver's seat =:
Ryou are as far away from the driver's air bag as
possible
Ryou are sitting in a normal upright position
Ryour thighs are slightly supported by the seat
cushion
Ryour legs are not entirely stretched and you
can depress the pedals properly
Rthe back of your head is supported at eye level
by the center of the head restraint
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instrument
cluster clearly
Ryou should have a good overview of traffic
conditions
Rthe seat belt is pulled snugly against the body and is routed across the center of your shoul-
der and across your hips in the pelvic area
Further related subjects:
RAdjusting the seats electrically (Ypage 101).
RAdjusting the steering wheel mechanically
(Ypage 105).
RAdjusting the steering wheel electrically
(Ypage 105).
RFastening the seat belt correctly (Ypage 48).
RAdjusting the rear-view mirror and exterior
mirrors (Ypage 107).
RStoring the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (
Ypage 110).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is no
SmartKey in the ignition lock.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 49) and "Children in the vehicle"
(Ypage 60).
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
Seats99
Seats, steering wheel and mirrors
Z
Calling up a stored parking position set-
ting
XTurn the SmartKey to position2in the igni-
tion lock (Ypage 136).
XAdjust the exterior mirror on the front-
passenger side using button =.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger side
moves back to its original position:
Ras soon as you exceed a speed of 9 mph
(15 km/ h)
Rabout ten seconds after you have disengaged
reverse gear
Rwhen you use button ?to select the exterior
mirror on the driver's side
Memory function
Important safety notes
GWARNING
If you use the memory function on the driver's side while driving, you could lose control of
the vehicle as a result of the adjustments
being made. There is a risk of an accident.
Only use the memory function on the driver's
side when the vehicle is stationary.
GWARNING
When the memory function adjusts the seat or steering wheel, you and other vehicle occu-
pants – particularly children – could become
trapped. There is a risk of injury.
While the memory function is making adjust-
ments, make sure that no one has any body
parts in the sweep of the seat or steering
wheel. If somebody becomes trapped, imme-
diately release the memory function position
button. The adjustment process is stopped.
GWARNING
Children could become trapped if they acti-
vate the memory function, particularly when
unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The memory function can be used at any time,
e.g. even when the SmartKey is not in the igni-
tion lock.
Storing settings
With the memory function, you can store up to
three different settings, e.g. for three different
people.
The following settings are stored as a single
memory preset:
Rposition of the seat, backrest and head
restraint
Rdriver's side: position of the exterior mirrors
on the driver's and front-passenger sides
Rposition of the head-up display
XAdjust the seat accordingly (Ypage 101).
XOn the driver's side, adjust the steering wheel
(Ypage 105) and the exterior mirrors
(Ypage 107).
XPress memory button Mand then press one of
the memory position buttons 1,2or 3within
three seconds.
The settings are stored in the selected preset
position. A tone sounds when the settings
have been completed.
Calling up a stored setting
XPress and hold the relevant memory position
button 1,2or 3until the following compo-
nents are in the saved position:
110Memory function
Seats, steering wheel and mirrors
RSeat
RSteering wheel
RExterior mirrors
RHead-up display
iIf you release the memory position switch,
the seat, steering wheel and mirror setting
functions stop immediately. The head-up dis-
play continues to be adjusted.
Memory function111
Seats, steering wheel and mirrors
Z