wheel MERCEDES-BENZ CLA 2014 Service Manual

Calling upastoredsetting
XPress and hold the relevant storage
position button1,2or3until the seat and
exteriormirrors are in the stored position.
iThe setting procedure is interrupted as
soon as you release the storage position
button.
Memory functions101
Seats, steering wheel and mirrors
Z

Active:
Rif you are driving at speeds below 25 mph
(40 km/h) and switch on the turnsignal or
turnthe steering wheel.
Rif you are driving at speeds between
25 mph(40 km/h) and 45 mph(70 km/h)
and turn the steering wheel.
Not active:if you are driving at speeds above
25 mph (40 km/h) or switch off the turn
signal or turn the steering wheel to the
straight-ahead position.
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than three minutes.
Extended range fog lamps
The extended range fog lamps reduce the
glare experienced by the driverand improve
the illuminationofthe edge of the road.
Active:if you are driving at speeds below
40 mph (70 km/h) and you switch on the rear
fog lamp.
Not active:if, following activation, you are
driving at speeds above 60 mph (100 km/h)
or if you switch off the rear fog lamp.
Adaptive Highbeam Assist
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that
have lights, or may recognize them too late.
In this or similar situations, the automatic
high-beam headlamps will not be deactivated
or activated regardless. There is a risk of an
accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rdirt on the sensors or the sensors are
obscured
General notes
You can use this function to set the
headlamps to change between low beam and
high beam automatically.The system
recognizes vehicles with their lights on, either
approaching from the opposite direction or
traveling in front of your vehicle, and
consequently switches the headlamps from
high beam to low beam.
The system automatically adapts the low-
beam headlamp range depending on the
distance to the other vehicle. Once the
108Exterior lighting
Lights and windshield wipers

Halogen headlamps
Turnsignal lamp: PY 21 W
Low-beam headlamp/daytime running
lamp/parking lamp/standing lamp:
H15 55 W/15 W
"Low-beam headlamp: H7 55 W
Vehicles with IntelligentLight System
Cornering lamp: H7 55 W
Tail lamp (halogen headlamps)
Rear fog lamp: P 21 W
Brake lamp: W 16 W
"Brake lamp: W 16 W
!Turn signal lamp: PY 21 W
Backup lamp: W 16 W
Changing the front bulbs
Removing and installing thecover in the
front wheel housing
You must remove the cover from the front
wheel housing before you can change the
frontbulbs.
XTo remove:switch off the lights.
XTurn the frontwheels inwards.
XTurn rotary knobthrough 90°.
Coveris released.
XPush coverdown.
XTo install:push coverup.
XTurn rotary knobthrough 90°.
Coveris locked.
Low-beam headlamps (halogen
headlamps)
112Replacing bulbs
Lights and windshield wipers

XRemove the cover in the front wheel
housing (Ypage 112).
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsertthe new bulb into bulb holder.
XInsert bulb holderinto the lamp and turn
it clockwise.
XAlign housing coverand turn it
clockwise until it engages.
XReplace the cover in the front wheel
housing (Ypage 112).
High-beam headlamps/daytime
running lamps/parking lamps/
standing lamps (vehicles with halogen
headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulbcounter-clockwise and pull it
out.
XInsert the new bulb and engage it to the
stop.
XAlign housing coverand turn it
clockwise until it engages.
Turn signals (halogen headlamps)
XSwitch off the lights.
XOpen the hood.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsert the new bulb into bulb holder.
XInsert bulb holderand turn it clockwise
until it engages.
Cornering light function (Intelligent
Light System)
XSwitch off the lights.
XOpen the hood.
XTurn housing covercounter-clockwise
and pull it out.
XTurn bulb holdercounter-clockwise and
pull it out.
XTake the bulb out of bulb holder.
XInsert the new bulb into bulb holder.
Replacing bulbs113
Lights and windshield wipers
Z

Setting the rear-compartment air
vents
Rear-compartment air vent, left
Rear-compartment air vent, right
"Rear-compartment air vent thumbwheel
XTo open/close:turn thumbwheel"up or
down.
Setting the air vents133
Climate control
Z

GWARNING
If you switch off the ignitionwhile driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
Roverheat and cause a fire
Rlose 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 shift the automatic transmission to
the desired drive position when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. You could otherwise damage the
drive train.
!AMG vehicles:avoid full-load operation
and engine speeds greater than 5000rpm
when the engine is cold. This helps to
protect the engine and avoids
uncomfortable driving.
Key positions
\rTo remove the SmartKey
(shift the transmission to positionP)
Power supply for some consumers, such
as the windshield wipers
Ignition (power supply for all consumers)
and drive position
To start the engine
iThe SmartKey can be turned in the
ignition lock even if it is not the correct
SmartKey for the vehicle. The ignition is not
switched on. The engine cannot be started.
Starting the engine
Important safety notes
GWARNING
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.
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
Driving137
Driving and parking
Z

Engaging park position P
XWhen the vehicle is stationary, pressP
button.
Transmission positions
Parkposition
Do not shift the transmission into
positionPunless the vehicle is
stationary (Ypage 153). The
parking lock should not be used as
a brake when parking.Always
apply the electronic parking brake
in additionto the parking lock in
order to secure the vehicle.
If the vehicle electronics are
malfunctioning, the transmission
may be locked in positionP.
Have the vehicle electronics
checked immediately at a qualified
specialist workshop.
Reverse gear
Only shift the transmission toR
when the vehicle is stationary.

Neutral
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
If ESP®is deactivated or faulty:
only shift the transmission to
positionNif the vehicle is in danger
of skidding, e.g. on icy roads.
When you switch off the engine, the
automatic transmission
automatically shifts into neutralN.
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gear
The automatic transmission shifts to the
individual gears automatically when it is in
transmission positionD.This automatic
gearshifting behavior is determined by:
Rthe selected drive program (Ypage 146)
Rthe position of the accelerator pedal
Rthe road speed
Driving tips
Holding the vehicle stationary on uphill
gradients
GWARNING
If the clutch overheats, the electronic
management system is automatically
deactivated. This interrupts the power
transmission. The vehicle may, for example,
roll backwards on gradients. There is a risk of
an accident.
Never hold the vehicle stationary on uphill
gradients by depressing the accelerator.
Automatic transmission145
Driving and parking
Z

AMG vehicles
CControlled
Efficiency
Comfortable, economical
driving
SSportSporty driving style
MManualManual gear shifting
Only change from automatic drive program
CorSto manual drive programMwhen the
vehicle is stationary.
XPress program selector button
repeatedly until the letterfor the desired
gearshift program appears in the
multifunction display.
iThe automatic transmission shifts to
automatic drive programCeach time the
engine is started.
iFor further information on the automatic
drive program, see (Ypage 147).
Steering wheel paddle shifters
Left steering wheel paddle shifter (shifts
down)
Right steering wheel paddle shifter (shifts
up)
In drive programM, you can change gear
yourself using the steering wheel paddle
shifters.
If you pull the left or right steering wheel
paddle shifter when in automatic drive
programE(drive programCon AMG vehicles)
orS, the automatic transmission shifts into
drive programMfor a limited time.
Depending on which paddle shifter is pulled,
the automatic transmission immediately
shifts into the next gear down or up.
AMG vehicles:you can activate drive
programMRACE START (Ypage 173) using
the steering wheel paddle shifters.
iYou can only change gear with the
steering wheel paddle shifters when the
transmission is in positionD.
iFor further information on the manual
drive program, see (Ypage 148).
Automatic drive program
Drive programE(drive programCon MAG
vehicles) is characterized by the following:
Rcomfort-oriented engine settings
Roptimal fuel consumption resulting from
the automatic transmission shifting up
sooner
Automatic transmission147
Driving and parking
Z

Rthe vehicle pulling away moregently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
Rincreased sensitivity. This improves driving
stability on slippery road surfaces, for
example
Rthe automatic transmission shifting up
sooner.This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin
Drive programSis characterized by the
following:
Rsporty engine settings
Rthe automatic transmission shifting up
later
Rthe fuel consumption possibly being higher
as a result of the later automatic
transmission shift points
Manual drive program
Introduction
In manual drive programM, you can change
gear yourself by using the steering wheel
paddle shifters. For this, the transmission
must be in positionD. The gear currently
selected and engaged is shown in the
multifunction display.
Manual drive programMdiffers from drive
programsE(drive programCon AMG
vehicles) andSwith regard to spontaneity,
responsiveness and smoothness of gear
changes.
GearDriving situations
You can use the engine's braking
effect
\nYou can use the braking effect of
the engine on downhill gradients
and for driving:
Ron steep mountain roads
Rin mountainous terrain
Rin arduous conditions
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches
Switching on the manual drive program
Activating permanently
XPress the program selector button
(Ypage 146) repeatedly untilMappears in
the multifunction display.
Manual drive programMremains active
until drive programE(drive programCon
AMG vehicles) orSis selected.
Activating temporarily
XPull the right or left steering wheel paddle
shifter (Ypage 147).
Mis shown in the multifunction display.
Manual drive programMis temporarily
active. Depending on which paddle shifter
is pulled, the automatic transmission
immediately shifts into the next gear down
or up.
iWhen manual drive programMis
activated via the steering wheel paddle
shifters, the temporarily active manual
drive programMwill be deactivated
automatically after a limited time, if the
driving situation permits. The automatic
transmission switches to the previously
activated drive programE(drive program
Con AMG vehicles) orS.When driving on
downhill gradients, the temporarily active
manual drive programMwill only be
deactivated if the accelerator pedal is
depressed while the vehicle is rolling
downhill.
148Automatic transmission
Driving and parking

Upshifting
XPull the right-hand steering wheel paddle
shifter (Ypage 147).
The automatic transmission shifts up to the
next gear.
iAll vehicles (except AMG vehicles):in
order to preventengine damage the
automatic transmission automatically
shifts up:
Rif the maximumengine speed on the
currently engaged gear is reached and
Ryou continue to accelerate.
AMGvehicles:
!In manual drive programM, the automatic
transmission does not shiftup
automatically evenwhen the engine
limiting speed for the current gear is
reached. When the engine limiting speed is
reached, the fuel supply is cut to prevent
the engine from overrevving. Always make
sure that the engine speed does not reach
the red area of the tachometer. There is
otherwise a risk of engine damage.
AMG vehicles
!In manual drive programM, the automatic
transmission does not shift up
automatically even when the engine
limiting speed for the current gear is
reached. When the engine limiting speed is
reached, the fuel supply is cut to prevent
the engine from overrevving. Always make
sure that the engine speed does not reach
the red area of the tachometer. There is
otherwise a risk of engine damage.
Gear indicator
Upshift indicator
Before the engine speed reaches the red area,
an upshift indicator will be shown in the
multifunction display.
XIf the color in the speedometer
multifunction display changes to red and
theUPdisplay message is shown, shift up
a gear.
Downshifting
XPull the left-hand steering wheel paddle
shifter (Ypage 147).
The automatic transmission shifts down to
the next gear.
iIf you slow down or stop without shifting
down, the automatic transmission
automatically shifts down.
iFor maximum acceleration, pull the left-
hand steering wheel paddle shifter until the
transmission selects the optimum gear for
the current speed.
iIf the engine exceeds the maximum
engine speed when shifting down, the
automatic transmission protects against
engine damage by not shifting down.
Kickdown
AMG vehicles:kickdown is only possible in
temporary manual drive programM.
You can also use kickdown for maximum
acceleration in manual drive programM.
XDepress the accelerator pedal beyond the
pressure point.
The automatic transmission shifts to a
lower gear depending on the engine speed.
XShift back up once the desired speed is
reached.
iDuring kickdown, you cannot change gear
using the steering wheel paddle shifters.
iIf you apply full throttle, the automatic
transmission shifts up to the next gear
when the maximum engine speed is
Automatic transmission149
Driving and parking
Z