
formation from the system manufacturer; oth‐
erwise, the level of protection may be re‐
duced.◀
Mounts for the lower LATCH anchors The lower anchors may be used to attach the
CRS to the vehicle seat up to a combined child
and CRS weight of 65 lb/30 kg when the child
is restrained by the internal harnesses.
Properly engage the lower LATCH an‐
chors
Make sure that the lower LATCH anchors have
properly engaged and that the child restraint
system is resting snugly against the backrest;
otherwise, the degree of protection may be re‐
duced.◀
Before mounting the LATCH child restraint
system, pull the belt away from the child re‐
straint system.
The corresponding symbol shows the
mounts for the lower LATCH anchors.
Mounts for the lower LATCH anchors are lo‐
cated in the gap between the seat and back‐
rest.
Without power rear seats: Assembly
of LATCH child restraint systems
1.Mount the child restraint system; refer to
the user's manual of the system.2.Ensure that both LATCH anchors are prop‐
erly connected.
With power rear seats: Assembly of
LATCH child restraint systems
1.Before mounting, adjust the seats to their
basic position, refer to page 59.2.For better accessibility, tilt the backrest
back slightly.3.Mount the child restraint system; refer to
the user's manual of the system.4.Ensure that both LATCH anchors are prop‐
erly connected.5.After mounting, move the backrest back up
slightly so that the child restraint system
rests lightly against the backrest.
Child restraint fixing system with a
tether strap
Mounting points
Depending on the vehicle equipment, there are
two outer or three mounting points for child re‐
straint systems with a tether strap.
The mounting point for the upper re‐
taining strap is marked with a Top
Tether symbol.
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NoteMounting eyelets
Use the mounting eyes only for the up‐
per retaining strap to secure child restraint
systems; otherwise, the mounting eyes could
be damaged.◀
Retaining strap guide Retaining strap
Make sure that the upper retaining strap
is not passed over the head restraints or sharp
edges and is not twisted up to the upper
mounting points; otherwise, the belt cannot
properly secure the child restraint system in an
accident.◀1Direction of travel2Head restraint3Hook for upper retaining strap4Mounting point/eye5Rear window shelf6Seat backrest7Upper retaining strap
Attaching the upper retaining strap to
the mounting point
1.Remove the mounting point cover.2.Raise the head restraint.
Do not change the middle head restraint.3.Guide the upper retaining strap between
the supports of the head restraint.Guide it over the head restraint of the mid‐
dle seat.4.Attach the hook of the retaining strap to
the mounting eye.5.Tighten the retaining strap by pulling it
down.6.Lower and lock head restraints as needed.
Locking the doors and
windows
Rear doors
Push the locking lever on the rear doors down.
The door can now be opened from the outside
only.
Safety reel for the rear Press button on the driver's door if
children are being transported in the
rear.
This locks various functions so that they can‐
not be operated from the rear: safety reel, refer
to page 50.
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DrivingVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems.
Start/Stop button
The concept Pressing the Start/Stop button
switches the ignition on or off
and starts the engine.
The engine starts with the brake
pedal pressed when you press
the Start/Stop button.
Ignition onPress the Start/Stop button, and do not press
on the brake pedal at the same time.
All vehicle systems are ready for operation.
Most of the indicator and warning lights in the
instrument cluster light up for a varied length
of time.
To save battery power when the engine is off,
reel off the ignition and any unnecessary elec‐
tronic systems/power consumers.
Note If the engine is switched off and the ignition is
switched on, the system automatically
switches to the radio-ready state if the lights
are turned off or, if correspondingly equipped,
the daytime running lights are activated.Ignition off
Press the Start/Stop button again, and do not
press on the brake pedal at the same time.
All indicator lights in the instrument cluster go
out.
To save battery power when the engine is off,
reel off the ignition and any unnecessary elec‐
tronic systems/power consumers.
P when the ignition is switched off
P is engaged automatically when the ig‐
nition is switched off. When in an automatic car wash, e.g., ensure that the ignition is not
switched off accidentally.◀
The ignition automatically cuts off while the
vehicle is stationary and the engine is stopped:▷When locking the vehicle, and when the
low beams are activated.▷Shortly before the battery is discharged
completely, so that the engine can still be
started. This function is only available
when the low beams are turned off.▷When opening or closing the driver door, if
the driver's safety belt is unbuckled and
the low beams are turned off.▷While the driver's safety belt is unbuckled
with driver's door open and low beams off.
The low beams reel to parking lights after ap‐
prox. 15 minutes of no use.
Radio ready state
Activate radio-ready state:
▷When the engine is running: press the
Start/Stop button.
Some electronic systems/power consumers
remain ready for operation.
The radio-ready state switches off automati‐
cally:
▷After approx. 8 minutes.Seite 73DrivingControls73
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▷When the vehicle is locked using the cen‐
tral locking system.▷Shortly before the battery is discharged
completely, so that the engine can still be
started.
The radio-ready state remains active if, e.g.,
the ignition is automatically switched off for the
following reasons:
▷Opening or closing the driver's door.▷Unfastening of the driver's safety belt.▷When automatically switching from low
beams to parking lights.
Starting the engine
Hints Enclosed areas
Do not let the engine run in enclosed
areas, since breathing in exhaust fumes may
lead to loss of consciousness and death. The
exhaust gases contain carbon monoxide, an
odorless and colorless but highly toxic gas.◀
Unattended vehicle
Do not leave the vehicle unattended with
the engine running; doing so poses a risk of
danger.
Before leaving the vehicle with the engine run‐
ning, set the parking brake and place the trans‐
mission in selector lever position P or N to pre‐
vent the vehicle from moving.◀
Repeated starting in quick succession
Avoid trying to start the vehicle repeat‐
edly and in quick succession. Otherwise, the fuel is not burned or is inadequately burned,
posing a risk of overheating and damage to the
catalytic converter.◀
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving at
moderate engine speeds.
Diesel engine
If the engine is cold and temperatures are be‐
low approx. 32 ℉/0 ℃, the start process may
be delayed somewhat due to automatic pre‐
heating.
A Check Control message is displayed.
Starting the engine Press on the brake pedal and
press the Start/Stop button.
The engine is cranked until it
starts.
Engine stop Hints Take the remote control with youTake the remote control with you when
leaving the vehicle so that children, e.g., can‐
not start the engine.◀
Apply parking brake and further secure
the vehicle if needed.
Set the parking brake firmly when parking; oth‐
erwise, the vehicle could roll. On steep upward
and downward inclines, further secure the ve‐
hicle, e.g., by turning the steering wheel in the
direction of the curb.◀
Before driving into a car wash
So that the vehicle can roll into a car wash ob‐
serve instructions for going into an automatic
car wash, refer to page 239.
Switching off the engine1.Engage transmission position P with the
vehicle stopped.2.Press the Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.3.Set the parking brake.Seite 74ControlsDriving74
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Auto Start/Stop function
The concept The Auto Start/Stop function helps save fuel.
The system switches off the engine during a
stop, e.g., in traffic congestion or at traffic lights. The ignition remains switched on. The
engine starts again automatically for driving
off.
Automatic mode After every start of the engine using the Start/
Stop button, the Auto Start/Stop function is in
the last selected state, refer to page 76.
When the Auto Start Stop function is active, it
is available when the vehicle is traveling faster
than about 3 mph, approx. 5 km/h.
Engine stop
The engine is switched off automatically dur‐
ing a stop under the following conditions:
Steptronic transmission:▷The selector lever is in selector lever posi‐
tion D.▷The brake pedal remains pressed while the
vehicle is stationary or the vehicle is held
by Automatic Hold.▷The driver's safety belt is buckled or the
driver's door is closed.
The air flow from the air conditioner is reduced
when the engine is switched off.
Displays in the instrument cluster The display indicates that the
Auto Start/Stop function is
ready for an Automatic engine
start.
The display indicates that the conditions for an automatic en‐
gine stop have not been met.
Note
The engine is not switched off automatically in
the following situations:▷External temperature too low.▷The external temperature is high and auto‐
matic climate control is running.▷The car's interior has not yet been heated
or cooled to the required level.▷The engine is not yet at operating temper‐
ature.▷The wheels are at a sharp angle or the
steering wheel is being turned.▷After driving in reverse.▷Fogging of the windows when the auto‐
matic climate control is switched on.▷Vehicle battery is heavily discharged.▷At higher elevations.▷The engine compartment lid is unlocked.▷HDC Hill Descent Control is activated.▷The parking assistant is activated.▷Stop-and-go traffic.▷The selector lever is in position N, M/S or
R.▷Use of fuel with high ethanol content.
Starting the engine
The engine starts automatically under the fol‐
lowing conditions:
▷Steptronic transmission:
By releasing the brake pedal.
When Automatic Hold is activated: press
the accelerator pedal.
After the engine starts, accelerate as usual.
Safety mode
After the engine switches off automatically, it
will not start again automatically if any one of
the following conditions are met.
▷The driver's safety belt is unbuckled and
the driver's door is open.Seite 75DrivingControls75
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Safety informationSecure the vehicle against rolling
Before leaving the vehicle with the en‐
gine running, engage position P of the Step‐
tronic transmission and ensure that the park‐
ing brake is set. Otherwise, the vehicle may
begin to move.◀
Under the following conditions, Automatic
Hold is automatically deactivated and the park‐
ing brake is set:
▷The engine is switched off.▷A door is opened and driver's safety belt is
unbuckled while the vehicle is stationary.▷The moving vehicle is brought to a stand‐
still using the parking brake.
The indicator lamp switches from
green to red and the letters AUTO H go out.
Activating
This function can be activated when the driv‐
er's door is closed, the safety belt is fastened
and the engine is running.
Press button.
The LED and the letters AUTO H light
up.
The indicator lamp lights up.
Automatic Hold is activated.
Deactivating
Press button again.
The LED and the letters AUTO H go
out.
Automatic Hold is deactivated.
If the vehicle is being held by Automatic Hold,
press on the brake pedal to deactivate it.
When the parking brake is set manually, Auto‐
matic Hold is deactivated automatically.
sDriving
Automatic Hold is activated: the vehicle is au‐
tomatically secured against rolling after brak‐
ing to a standstill.
The indicator lamp lights up green.
Step on the accelerator pedal to drive
off.
The brake is released automatically.
The indicator lamp goes out.
Before driving into a car wash
Before driving into the car wash, deacti‐
vate Automatic Hold; otherwise, the parking
brake will be set when the vehicle is stationary
and the vehicle will no longer be able to roll.◀
Parking
The parking brake is automatically set if the
engine is switched off while the vehicle is be‐
ing held by Automatic Hold.
The indicator lamp changes from green
to red.
The parking brake is not set if the en‐
gine is switched off while the vehicle is coast‐
ing to a halt. Automatic Hold is deactivated.
Automatic Hold remains activated during the
engine stop brought about by the Auto Start/
Stop function.Seite 78ControlsDriving78
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Steptronic transmission
Selector lever positions
D Drive Selector lever position for normal vehicle oper‐
ation. All gears for forward travel are activated
automatically.
To reduce fuel consumption, the engine is au‐
tomatically decoupled from the transmission
under the conditions described for Coasting,
refer to page 196.
R is Reverse
Select only when the vehicle is stationary.
N Neutral: The vehicle may roll. Use in automatic car
washes, e.g.
When the ignition is switched off, refer to
page 73, selector lever position P is engaged
automatically.
P Park Select only when the vehicle is stationary. The
drive wheels are blocked.
P is engaged automatically:▷After the engine is switched off when the
vehicle is in radio-ready state, refer to
page 73, or when the ignition is switched
off, refer to page 73, and when position R
or D is set.▷With the ignition off, if selector lever posi‐
tion N is set.▷If the safety belt is unbuckled, the driver's
door is opened, and the brake pedal is not
pressed while the vehicle is stationary and
position D or R is set.
Before exiting the vehicle, make sure that se‐
lector lever position P is set. Otherwise, the ve‐
hicle may begin to move.
Kickdown
Kickdown is used to achieve maximum driving
performance. Step on the accelerator pedal
beyond the resistance point at the full throttle
position.
Engaging selector lever positions Press on the brake pedal until you start
driving
To prevent the vehicle from creeping after you
select a gear, maintain pressure on the brake
pedal until you are ready to start.◀▷It is not possible to shift out of selector
lever position P until the engine is running
and the brake is applied.▷With the vehicle is stationary, press on the
brake pedal before shifting out of P or N;
otherwise, the shift command will not be
executed: shift lock.
Engaging D, R and N
Briefly push the selector lever in the desired di‐
rection, beyond a resistance point if needed.
After releasing the selector lever, it returns to
its center position.
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In addition, an acoustic signal may sound and a
text message may appear on the Control Dis‐
play.
Indicator/warning lights
General information
The indicator and warning lights in the instru‐
ment cluster can light up in a variety of combi‐
nations and colors.
Several of the lights are checked for proper
functioning and light up temporarily when the
engine is started or the ignition is switched on.
Red lights Safety belt reminder Flashing or illuminated: safety belt on
the driver or passenger side is not
buckled. The safety belt reminder can
also be activated if objects are placed on the
front passenger seat.
Make sure that the safety belts are positioned
correctly.
Airbag system Airbag system and belt tensioner are
defective.
Have the vehicle checked by the serv‐
ice center immediately.
Parking brake The parking brake is set.
For additional information, refer to Release
parking brake, refer to page 77.
Brake systemContinue to drive moderately.
Have the vehicle checked by the serv‐ ice center immediately.
Front-end collision warning Illuminated: advance warning is issued,
e.g., when there is the impending dan‐
ger of a collision or the distance to the
vehicle ahead is too small.
Increase distance.
Flashing: acute warning of the imminent dan‐
ger of a collision when the vehicle approaches
another vehicle at a relatively high differential
speed.
Intervention by braking or make an evasive ma‐
neuver.
Pedestrian warning Symbol in the instrument cluster.
Symbol in the instrument display.
If a collision with a person detected in this way
is imminent, the symbol lights up and a signal
sounds.
Orange lights Active Cruise Control The number bars shows the selected
distance from the vehicle driving
ahead.
For additional information, refer to Active
Cruise Control with Stop & Go function, ACC,
refer to page 144.
Vehicle detection, Active Cruise Control Illuminated: vehicle driving ahead de‐
tected.Seite 91DisplaysControls91
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