warning MERCEDES-BENZ CLA 2016 Service Manual

ESP ®
(Electronic Stability Program)
General notes
i Observe the "Important safety notes" sec-
tion ( Y
page 65).
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tires and
the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to
keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilize the vehicle during braking.
ETS/4ETS (Electronic Traction System)
i Observe the "Important safety notes" sec-
tion ( Y
page 65).
ETS traction control is part of ESP ®
. On vehi-
cles with 4MATIC, 4ETS is part of ESP ®
.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP ®
.
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y
page 65).
G WARNING
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. Vehicles without 4MATIC: when towing
your vehicle with the front axle raised, it is
important that you observe the notes on ESP ®
( Y
page 323).
If the

Deactivating/activating ESP ®
(excep t
Mercedes ‑ AMG vehicles )Important safet y notes
You can selec t between th e following states
of ES P ®
:R
ES P ®
is activated.R
ES P ®
is deactivated.
G WARNING
If you deactivat e ES P ®
, ES P ®
no longer sta-
bilizes th e vehicle. There is an increase d ris k
of skidding and an accident.
Only deactivat e ES P ®
in th e situation s descri-
bed in th e following.
It may be bes t to deactivat e ES P ®
in th e fol-
lowin g situations:R
when usin g snow chain sR
in deep snow R
on san d or grave l
i Activat e ES P ®
as soo n as th e situation s
described abov e no longer apply. ES P ®
will
otherwise no t be able to stabilize th e vehi-
cl e if th e vehicle start s to skid or a whee l
start s to spin.
! Avoid spinnin g th e driven wheels fo r an
extended period wit h ES P ®
deactivated.
You could otherwise damage th e drivetrain .
Deactivating/activating ESP ®
You can deactivat e or activat e ES P ®
via th e
on-boar d compute r ( Y
page 219).
ESP ®
deactivated:
The

In the following situations, it may be better to
activate SPORT handling mode or deactivate
ESP ®
: R
when using snow chains R
in deep snow R
on sand or gravel R
on specially designated roads when the
vehicle's own oversteering and understeer-
ing characteristics are desired
Driving in SPORT handling mode or without
ESP ®
requires an extremely qualified and
experienced driver.
i Activate ESP ®
as soon as the situations
described above no longer apply. ESP ®
will
otherwise not be able to stabilize the vehi-
cle 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.
Deactivating/activating ESP ®
X
To activate SPORT handling mode:
briefly press button C .
The t SPORT handling mode warning
lamp in the instrument cluster lights up.
The SPORT handling mode message
appears in the multifunction display. X
To deactivate SPORT handling mode:
briefly press button C .
The t SPORT handling mode warning
lamp in the instrument cluster goes out. X
To deactivate ESP ®
: press button C until
the

R
COLL IS ION PREVENTION AS SIST is no lon-
ger available; nor is it activated if you brake
firmly wit h assistance from ESP ®
.R
ESP ®
st ill provides support when you brake
firmly.
ESP ®
trailer stabilizationGeneral info rm ation
If your veh icle/t railer combination begins to
swerve, ESP ®
assists you in this situation.
ESP ®
slows the vehicle down by braking and
limit ing the engine output unt il the vehicle/
trailer co mbin ation has stabilized.
Import ant safety notes
G WARNIN G
If road and weather condition s are poor ,
trailer stabilization will no t be able to preven t
th e vehicle/traile r combination from swerv-
ing . Trailers wit h a high cente r of gravity can
tip ove r before ES P ®
can detect this. Ther e is
a ris k of an accident.
Always adapt your driving style to th e prevail-
ing road and weather conditions.
If your veh icle wit h trailer (vehicle/trailer
co mbin ation) begins to lurch, you can only
st abiliz e the vehicle /t railer combination by
depr essing the brake firmly.
ESP ®
trailer st abiliz ation is active above
spee ds of about 65 km/h.
ESP ®
trailer stabilization does not work if
ESP ®
is deactivated or disabled because of a
malfunction.
EBD (electronic brake force distribu-
tion)
General information
EBD mon it ors and controls the brake pres-
sure on the rear wheels to improve driving
st abilit y while braking. Important safety notes
i Observe the "Im portant safety notes" sec-
tion ( Y
page 65).
G WARNIN G
If EB D is malfunctioning, th e rear wheels can
lock, e.g. under full braking . This increases th e
ris k of skiddin g and an accident.
You should therefor e adapt your driving style
to th e different handlin g characteristics. Hav e
th e brak e system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps ( Y
page 261) as well as dis-
play messages ( Y
page 230).
ADAPTIVE BRAKE ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function ( Y
page 187) and
hill start assist ( Y
page 151).
STEER CONTROL
General information
ST EER CONTROL helps you by transmitting a
noticea ble steering force to the steering
wheel in the direction required for vehicle
st abiliz ation.
This steering assistance is pro vide d in partic-
ular if: R
both right wheels or both left wheels are on
a wet or slippery road surface when you
brake. R
the veh icle starts to skid.
Important safety notes
i Observe the "Im portant safety notes" sec-
tion ( Y
page 65).72
Driving safety systems
Safety

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops ( Y
page 25).
SmartKey
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could: R
open the doors, thus endangering other
people or road users. R
get out and disrupt traffic. R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake. R
shifting the automatic transmission out of
park position PR
Start the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
G WARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a
risk of an accident. Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
! Keep the SmartKey away from strong
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
Do not keep the SmartKey: R
with electronic devices, e.g. a mobile
phone or another SmartKey. R
with metallic objects, e.g. coins or metal
foil. R
inside metallic objects, e.g. a metal case.
Vehicles with KEYLESS-GO start function:
do not keep the SmartKey in the cargo com-
partment. Otherwise, the SmartKey may not
be detected, e.g. when starting the engine
using the Start/Stop button.
SmartKey functions
C
7 To lock the vehicleD
T To open the trunk lid

X
Insert the SmartKey into the ignition lock.
or X
To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically. X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
X
Push release catch C in the direction of
the arrow and at the same time remove
mechanical key D from the SmartKey.
For further information about: R
unlocking the driver's door ( Y
page 85)R
unlocking the trunk ( Y
page 87)R
locking the vehicle ( Y
page 85)
Inserting the mechanical key X
Push mechanical key D completely into
the SmartKey until it engages and release
catch C is back in its basic position. SmartKey battery
Important safety notes
G WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
X
Press the 7 or 6 button.
The battery is working properly if battery
check lamp C lights up briefly.
The battery is discharged if battery check
lamp C does not light up briefly. X
Change the battery ( Y
page 80).SmartKey 79
Opening and closing Z

Problem
Possible causes/consequences and P Solutions
You have lost a Smart-
Key. X
Have the SmartKey deactivated at a qualified specialist work-
shop. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.
You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.
Doors
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could: R
open the doors, thus endangering other
people or road users. R
get out and disrupt traffic. R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake. R
shifting the automatic transmission out of
park position PR
Start the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
You should preferably place luggage or loads
in the cargo compartment. Observe the load-
ing guidelines ( Y
page 272).
Unlocking and opening doors from
the inside
! The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos- sible to close the door. Do not attempt to
force the door closed. You could otherwise
damage the door or the side window.
When a door is opened, the side window on
that side opens slightly. When the door is
closed, the side window closes again.
X
To unlock and open a front door: pull
door handle D .
If the door is locked, locking knob C pops
up. The door is unlocked and opens. X
To unlock a rear door: pull up locking
knob C .
The door is unlocked and can be opened. X
To open a rear door: pull door handle D .
You can open a door from inside the vehicle
even if it has been locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
( Y
page 64).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a
door from the inside will trigger the anti-theft Doors 83
Opening and closing Z

Unlocking the driver's door (mechan-
ical key) If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered ( Y
page 73).X
Take the mechanical key out of the Smart-
Key ( Y
page 78).X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X
Turn the mechanical key counter-clockwise
as far as it will go to position G .
The door is unlocked. X
Turn the mechanical key back and remove
it. X
Insert the mechanical key into the Smart-
Key ( Y
page 79).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key. X
Open the driver's door. X
Close the front-passenger door, the rear
doors and the trunk lid. X
Press the locking button on the driver’s
door ( Y
page 84).X
Check whether the locking knobs on the
front-passenger door and the rear doors are still visible. Press down the locking
knobs by hand, if necessary. X
Close the driver's door. X
Take the mechanical key out of the Smart-
Key ( Y
page 78). X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X
Turn the mechanical key clockwise as far as
it will go to position G .X
Turn the mechanical key back and remove
it. X
Make sure that the doors and the trunk lid
are locked. X
Insert the mechanical key into the Smart-
Key ( Y
page 79).
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed.
Trunk
Important safety notes
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is a
risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open. Trunk 85
Opening and closing Z

G WARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
The opening dimensions of the trunk lid can
be found in the "Vehicle data" section
( Y
page 371).
You should preferably place luggage or loads
in the trunk. Observe the loading guidelines
( Y
page 272).
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
The trunk lid can be: R
opened and closed manually from outside R
opened automatically from outside R
opened automatically from inside R
released with the emergency release from
the inside
Opening/closing from outside
Opening X
Press the 6 button on the key. X
Pull handle C . X
Raise the trunk lid.
Closing X
Pull down the trunk lid using handle C .X
Let the trunk lid drop into the lock. X
If necessary, lock the vehicle with the 7
button on the SmartKey or with KEYLESS-
GO.
Opening automatically from outside
Important safety notes
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is a
risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
i The opening dimensions of the trunk lid
can be found under "Vehicle data"
( Y
page 371).86
Trunk
Opening and closing

Opening automatically You can open the trunk lid automatically
using the SmartKey or the handle in the trunk
lid. X
Press and hold the T button on the
SmartKey until the trunk lid opens.
or X
If the trunk lid is unlocked, pull the trunk lid
handle and let it go again immediately.
Opening automatically from inside
Important safety notes
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the
trunk lid is open when the engine is running,
especially if the vehicle is in motion. There is a
risk of poisoning.
Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
The opening dimensions of the trunk lid can
be found under "Vehicle data" ( Y
page 371).
Opening
You can open the trunk lid from the driver's
seat when the vehicle is stationary and
unlocked. X
To open: pull remote operating switch C
for the trunk lid until the trunk lid opens.
Emergency release
General notes
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
The opening dimensions of the trunk lid can
be found in the "Vehicle data" section
( Y
page 371).
If the trunk lid can no longer be unlocked: R
using the SmartKey, or R
using the remote operating switch in the
door control panel:
Use the emergency release on the inside of
the trunk lid.
You can reach the emergency release via the
trunk.
Opening Trunk 87
Opening and closing Z