2013 MERCEDES-BENZ CLA check engine

ESP®
trailer stabilisation
General notes
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 combination has stabilised.
Important safety notes
GWARNING
If road and weather conditions are poor,
trailer stabilisation will not be able to prevent
the vehicle/trailer combination from swerv-
ing. Trailers with a high centre 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/trailer combination begins to
lurch, you can only stabilise the vehicle/
trailer combination by depressing the brake
firmly.
ESP ®
trailer stabilisation is active above
speeds of about 65 km/h.
ESP ®
trailer stabilisation does not work if
ESP ®
is deactivated or disabled because of a
malfunction.
EBD (electronic brake force distribu-
tion)
General notes
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking.
Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems
( Y page 64).
GWARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This increa-
ses 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 ( Y page 256) as well as dis-
play messages ( Y page 229).
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 181) and
hill start assist ( Y page 147). For further
information, see Driving tips ( Y page 166).
STEER CONTROL
General notes
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilisation.
This steering support is provided in particular
if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R the vehicle starts to skid.
Important safety notes
If there is an ESP ®
malfunction, you will not
receive any steering support from STEER
CONTROL. Power steering will, however, con-
tinue to function.
70Driving safety systemsSafety

ProblemPossible causes/consequences and M SolutionsThe engine cannot be
started using the key.The on-board voltage is too low.XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
( Y page 302).
or
XJump-start the vehicle ( Y page 306).
or
XConsult a qualified specialist workshop.The engine cannot be
started using the key.The steering lock is mechanically blocked.XRemove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions.Doors
Important safety notes
GWARNING
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 shift the automatic transmission out of
parking position P.
R shift the manual transmission into neutral.
R start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children or animals unattended in the vehicle.
Always keep the key out of reach of children.
GWARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there
is a risk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle.
Stow luggage or loads preferably in the boot.
Observe the loading guidelines
( Y page 268).
United Kingdom only:
GWARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get
out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked with the key,
then the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. You can deac-
Doors81Opening and closingZ

XTake the emergency key element out of the
key ( Y page 77).XInsert the emergency key element into the
lock of the driver's door as far as it will go.XTurn the emergency key element anti-
clockwise to position 1.
The door is unlocked.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
XTurn the emergency key element back and
remove it.XInsert the emergency key element into the
key.
Locking the vehicle (emergency key
element)
If the vehicle can no longer be locked with the
key, use the emergency key element.
XOpen the driver's door.XClose the front-passenger door, the rear
doors and the boot lid.XPress the locking button ( Y page 82).XCheck whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs manually, if necessary ( Y page 82).XClose the driver's door.XTake the emergency key element out of the
key ( Y page 77).XInsert the emergency key element into the
lock of the driver's door as far as it will go.XTurn the emergency key element clockwise
as far as it will go to position 1.
i
On right-hand-drive vehicles, turn the
emergency key element anti-clockwise.
XTurn the emergency key element back and
remove it.XMake sure that the doors and the boot lid
are locked.XInsert the emergency key element into the
key.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not primed.
Boot
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. There is a risk
of poisoning.
Always switch off the engine before opening
the boot lid. Never drive with the boot lid
open.
GWARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there
is a risk of serious or even fatal injuries. Never
84BootOpening and closing

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: ( Y page 24).
Correct driver's seat position
GWARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine.
Observe the safety notes on seat adjustment
( Y page 95).
XMake sure that seat = is correctly adjus-
ted.
Manual seat adjustment ( Y page 96)
Electrical seat adjustment ( Y page 96)
When adjusting the seat, make sure that:
R you are as far away from the driver's air-
bag as possible.
R you are sitting in a normal upright posi-
tion.
R you can fasten the seat belt properly.
R you have moved the backrest to an
almost vertical position.
R you have set the seat angle so that your
thighs are gently supported.
R you can depress the pedals properly.XCheck whether the head restraint is adjus-
ted correctly ( Y page 97).
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the centre of the head restraint.
Observe the safety notes on steering wheel
adjustment ( Y page 100).
XMake sure that steering wheel : is adjus-
ted correctly.
Adjusts the steering wheel ( Y page 100)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the instru-
ment cluster clearly.
Observe the safety guidelines for seat belts
( Y page 46).
XCheck whether you have fastened seat
belt ; properly ( Y page 48).94Correct driver's seat positionSeats, steering wheel and mirrors

Problems with the seat heatingProblemPossible causes/consequences and M SolutionsThe seat heating has
switched off prema-
turely or cannot be
switched on.The on-board voltage is too low because too many electrical con-
sumers are switched on.XSwitch off electrical consumers that you do not need, such as
the rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating will
switch back on automatically.Steering wheel
Important safety notes
GWARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine.
GWARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
Adjusting the steering wheel
GWARNING
The steering wheel may move unexpectedly if
you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion.
:Release lever;To adjust the steering wheel height=To adjust the steering wheel position
(fore-and-aft adjustment)XPush release lever : down completely.
The steering column is unlocked.XAdjust the steering wheel to the desired
position.XPush release lever : up completely.
The steering column is locked.XCheck if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction.100Steering wheelSeats, steering wheel and mirrors

Interior lighting control
Important notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in position 2 in the
ignition lock.
The brightness of the ambient lighting may be
set using the on-board computer
( Y page 222).
Automatic interior lighting control
XTo switch on: set the switch to centre
position B.XTo switch off: set the switch to the |
position.
The interior lighting automatically switches
on if you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting is activated for a short
time when the key is removed from the igni-
tion lock. You can activate this delayed
switch-off using the on-board computer
( Y page 222).
Manual interior lighting control
XTo switch the front interior lighting on:
set the switch to the c position.XTo switch off the interior lighting: set the
switch to the | position or (if the door
is closed) to the centre position.XTo switch the rear interior lighting on/
off: press the u button.XTo switch the reading lamps on/off:
press the p button.
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
XTo switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
XLock and then unlock the vehicle using the
key.
Replacing bulbs
Important safety notes
Xenon bulbs
GDANGER
Xenon bulbs are under high voltage. You can
get an electric shock if you remove the cover
of the xenon bulb and touch the electrical
contacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the xenon bulb. Always have work on
the xenon bulbs carried out at a qualified spe-
cialist workshop.
If your vehicle is equipped with xenon bulbs,
you can recognise this by the following: the
cone of light from the xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs
GWARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing
a bulb, you could burn yourself on these com-
ponents. There is a risk of injury.
Allow these components to cool down before
replacing the bulb.
Do not use a bulb that has been dropped or if
its glass tube has been scratched.
114Replacing bulbsLights and windscreen wipers

Problems with the auxiliary heating/ventilationDisplay messagesPossible causes/consequences and M Solutions$
FAILThe signal transmission between the transmitter and the vehicle
is faulty.XChange your position in relation to the vehicle, moving closer if
necessary.XMake another attempt to switch the auxiliary heating on or off
using the remote control.©
FAILThere is too little fuel in the fuel tank.XRefuel at the nearest filling station.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating is faulty.XHave the auxiliary heating checked at a qualified specialist
workshop.FAILThe auxiliary heating cannot be switched on or has switched itself
off.
The auxiliary heating was started more than twice when the engine
was switched off.XSwitch on the engine and let it run for more than ten seconds.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating cannot be switched on or has switched itself
off.
The starter battery is not sufficiently charged.XCharge the starter battery.XMake another attempt to switch on the auxiliary heating using
the remote control.140Operating the climate control systemClimate control

GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only set the automatic transmission to the
respective drive positions when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. Otherwise, you could damage the
drive train.
Key positions
gTo remove the key1Power supply for some consumers, such
as the windscreen wipers2Ignition (power supply for all consumers)
and drive position3To start the engine
Vehicles with manual transmission: the
steering is locked when the key is taken out
of the ignition lock.
i If the key does not belong to the vehicle,
it can still be turned in the ignition lock.
However, the ignition will not be switched
on. The engine cannot be started.
Starting the engine
Important safety notesGWARNING
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 with-
out sufficient ventilation.
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
! Do not depress the accelerator pedal
when starting the engine.
i Vehicles with a petrol engine: the
engine runs at a higher engine speed during
the cold start procedure so that the cata-
lytic converter can reach operating tem-
perature more quickly. The sound of the
engine may change as a result.
Manual transmission
XDepress the brake pedal and keep it
depressed.XDepress the clutch pedal fully.XShift to neutral N.
i
You can only start the engine when the
clutch pedal is fully depressed.
Automatic transmission
XShift the transmission to position P.
Transmission position display P is shown in
the multifunction display.Driving145Driving and parkingZ