2014 MERCEDES-BENZ CLA-Class start stop button

ATTENTION ASSIST
Activating/deactivating ................ .206
Display message ............................ 232
Function/notes ............................ .189
Audio menu (on-board computer) .... 202
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized Workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 229
see Lights
Automatic engine start (ECO start/
stop function) ................................... .144
Automatic engine switch-off (ECO
start/stop function) .......................... 143
Automatic headlamp mode .............. 109
Automatic transmission Accelerator pedal position ............. 149
Automatic drive program .............. .151
Changing gear ............................... 149
DIRECT SELECT lever ..................... 146
Drive program displa y.................... 147
Driving tips .................................... 149
Emergency running mode .............. 155
Engaging drive position .................. 148
Engaging neutral ............................ 148
Engaging park position (AMG vehi-
cles) ............................................... 149
Engaging reverse gear ................... 147
Engaging the park position ............ 147
Holding the vehicle stationary on
uphill gradients .............................. 149
Kickdown ....................................... 150
Manual drive progra m.................... 152
Overview ........................................ 146
Problem (malfunction) ................... 155
Program selector button ................ 150
Pulling away ................................... 142
Selector lever ................................ 148
Starting the engine ........................ 142
Steering wheel paddle shifters ...... 151
Transmission position dis-
play ........................................ 147, 148
Transmission positions .................. 149 Automatic transmission emer-
gency mode
....................................... 155 B
Backup lamp Changing bulbs .............................. 117
Display message ............................ 228
BAS (Brake Assist System) ................. 64
Battery (SmartKey) Checking .......................................... 78
Important safety notes .................... 78
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 303
Display message ............................ 231
Important safety notes .................. 301
Jump starting ................................. 305
Belt
see Seat belts
Belt force limiter
Activation ......................................... 55
Function ........................................... 55
Blind Spot Assist
Activating/deactivating ................. 206
Display message ............................ 234
Notes/function .............................. 191
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 220
Note s............................................. 350
Brake lamps
Changing bulbs .............................. 117
Display message ............................ 227
Brakes
ABS .................................................. 63
Adaptive Brake Assist ...................... 66
BAS .................................................. 64
Brake fluid (notes) ......................... 350
Display message ............................ 214
HOLD function ............................... 176
Important safety notes .................. 162
Maintenance .................................. 163
Parking brake ................................ 158
Riding tips ...................................... 162
Warning lamp ................................. 245 Index
5

X
Press release button 0085on belt buckle 0087.
X Guide belt tongue 0044back to belt guide 0043.
Belt warning for the driver and front
passenger Every time the engine is started, the
0076
seat belt warning lamp lights up for six sec-
onds. It lights up regardless of whether the
driver's and front-passenger seat belts have
already been fastened. If the driver's and
front-passenger seat belts have already been fastened, the 0076seat belt warning lamp
then goes out.
If the driver's seat belt is not fastened when
the engine is started, an additional warning
tone will sound. This warning tone stops after
a maximum of six seconds or once the driv-
er's seat belt is fastened.
If after six seconds, the driver or front
passenger have not fastened their seat belts
and the doors are closed:
R the 0076 seat belt warning lamp remains lit
as long as the driver's or front-passenger's seat belt is not fastened
and
R if a vehicle speed of 15 mph (25 km/h) is
exceeded, the 0076seat belt warning lamp
begins to flash. A warning tone also sounds
with increasing intensity for a maximum of 60 seconds or until the driver or front
passenger have fastened their seat belts.
If the driver/front passenger unfasten their
seat belt while the vehicle is in motion, the
0076 seat belt warning lamp lights up and a
warning tone sounds again.
The warning tone ceases even if the driver or
front-passenger seat belt has still not been
fastened after 60 seconds. The 0076seat belt
warning lamp stops flashing but remains illu- minated.
After the vehicle comes to a standstill, the
warning tone is reactivated. The 0076seat
belt warning lamp flashes again if the vehicle
speed exceeds 15 mph (25 km/h).
The 0076 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the
0076seat
belt warning lamp, see "Warning and indi-
cator lamps in the instrument cluster, seat
belts" (Y page 243).
Emergency Tensioning Devices, seat
belt force limiter G
WARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer opera- tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Ten-
sioning Devices which have been triggered
immediately replaced at a qualified specialist workshop.
! If the front-passenger seat is not occu-
pied, do not engage the seat belt tongue in
the buckle on the front-passenger seat.
Otherwise, the Emergency Tensioning
Device could be triggered in the event of an accident. Occupant safety
55Safety Z

wheel in the direction required for vehicle
stabilization.
This steering assistance is provided 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 vehicle starts to skid.
Important safety notes No steering support is provided from STEER
CONTROL, if:
R ESP ®
is malfunctioning.
R the lighting is faulty.
Power steering will, however, continue to
function. Theft deterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey. X To activate: remove the SmartKey from
the ignition lock.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be star- ted when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the USA) or 1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the Smart-
Key.
Indicator lamp 0043flashes. The alarm sys-
tem is armed after approximately
15 seconds.
X To disarm: unlock the vehicle with the
SmartKey.
or
X Insert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R the vehicle with the mechanical key
R a door
R the trunk lid
R the hood
X To stop the alarm: insert the SmartKey
into the ignition lock.
The alarm is switched off.
or
X Press the 0036or0037 button on the
SmartKey.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example. 72
Theft deterrent locking systemSafety

0085
To activate/deactivate air-recirculation mode (Y page 135)
0083 To set the airflow (Y page 132)
0084 To switch cooling with air dehumidification on/off (Y page 129)
006B To switch the rear window defroster on/off (Y page 134)Optimum use of climate control
Automatic climate control The following contains notes and recommen-
dations on optimum use of climate control.
R Switch on the air-conditioning system by
turning control knob 0083clockwise to the
desired position (except position 0).
R Set the temperature to 72 ‡ (22 †).
R Recommendation for avoiding misted
windows at low exterior temperatures
or in rain: switch on the 005Acooling with
dehumidification function (Y page 129).
Set air distribution to 0061and if possible
switch off 009Cand009B (Ypage 132).
In air-recirculation mode, switch 008Aoff
(Y page 135).
Set airflow control 0083to a setting between
3 and 6(Y page 132).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control 0083to a setting between 3
and 6(Y page 132).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol 0083to a setting between 1and 3
(Y page 132).
R Recommendation for air distribution in
the winter: set009B and0061
(Y page 132).
Recommendation for air distribution in
the summer: set009C or009C and0061
(Y page 132).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various cli-
mate control functions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 144). 126
Overview of climate control systemsClimate control

R
Only available on vehicles for Canada:
use the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various cli-
mate control functions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 144). Operating the climate control sys-
tems Switching climate control on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
Climate control X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To switch on: turn control0083clockwise to
the desired position (except position 0)
(Y page 125).
X To switch off: turn control0083counter-
clockwise to position 0(Y page 125). Dual-zone automatic climate control X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button.
The indicator lamp in the 0078button goes
out. The previously selected settings are
restored.
X To deactivate: press the0078button.
The indicator lamp in the 0078button lights
up.
i Dual-zone automatic climate control:
switch on climate control primarily using
the 0058 button. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc- tion. Operating the climate control systems
129Climate control

Hill start assist is not active if:
R you are pulling away on a level road or on a
downhill gradient.
R the transmission is in position N.
R the electric parking brake is applied.
R ESP ®
is malfunctioning.
Further information on holding the vehicle
stationary on uphill gradients (Y page 149).ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is stop- ped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes G
WARNING
If the engine is switched off automatically and you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving. There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes 0043
ECO start/stop display
If the 00A7 symbol is shown in green in the
multifunction display, the ECO start/stop function switches the engine off automati-
cally if the vehicle stops moving.
The stop/start function is automatically acti-
vated each time you start the engine with the SmartKey.
If the ECO start/stop function has been man- ually deactivated (Y page 144) or a malfunc-
tion has caused the system to be deactivated, the 00A7 symbol is not displayed.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
Automatic engine switch-off General notes
The ECO start/stop function is operational
and the
00A7symbol is displayed in green in
the multifunction display, if:
R the indicator lamp in the ECO button is lit
green.
R the outside temperature is within the range
that is suitable for the system.
R the engine is at normal operating temper-
ature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If not all conditions for automatic engine
switch-off are fulfilled, the 00A7symbol is
shown in yellow.
i All of the vehicle's systems remain active
when the engine has been stopped auto-
matically.
i The engine can be switched off automat-
ically a maximum of four times (first stop
and three subsequent stops) in succession.
The 00A7 symbol is shown in yellow in the
multifunction display after the engine has Driving
143Driving and parking Z

been started automatically for the fourth
time. When the 00A7symbol is shown in
green in the multifunction display, auto-
matic engine switch-off is again possible.
Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the engine automatically.
i The HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
Automatic engine start General notes
The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R you engage reverse gear R.
R you unfasten your seat belt or open the
driver's door.
R the vehicle starts to roll.
R the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range.
R the system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
R the charge level of the battery is too low.
Vehicles with automatic transmission
The engine is started automatically if you:
R release the brake pedal in transmission
position Dor Nwhen the HOLD function is
not active.
R depress the accelerator pedal.
R move the transmission out of position P.i
Shifting the transmission to position
P
does not start the engine.
i If you shift the transmission from
Rto D,
the ECO start/stop function is available
again once the 00A7symbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function X
To deactivate: press ECO button 0043.
Indicator lamp 0044and the 00A7symbol in
the multifunction display go out.
X To activate: press ECO button 0043.
Indicator lamp 0044lights up.
If all conditions for automatic engine
switch-off (Y page 143) are fulfilled, the
00A7 symbol is shown in green in the mul-
tifunction display.
If not all conditions for automatic engine
switch-off (Y page 143) are fulfilled, the
00A7 symbol is shown in yellow in the mul-
tifunction display. If this is the case, the
ECO start/stop function is not available.
i If indicator lamp
0044is off, the ECO start/
stop function has been deactivated man-
ually or as the result of a malfunction. The
engine will then not be switched off auto-
matically when the vehicle stops. 144
DrivingDriving and parking

system independently locates and measures
parking spaces on both sides of the vehicle.
Active Parking Assist will only detect parking spaces:
R that are parallel or at right-angles to the
direction of travel
R that are parallel to the direction of travel
and at least 59 in (1.5 m) wide
R that are parallel to the direction of travel
and at least 39.5 in (1.0 m) longer than your
vehicle
R that are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider
than your vehicle
i In the case of parking spaces that are at
right angles to the direction of travel,
please ensure that the parking space is
long enough to accommodate your vehicle.
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol as a
status indicator in the instrument cluster.
When a parking space has been detected, an arrow towards the right or the left also
appears. By default, Active Parking Assist
only displays parking spaces on the front-
passenger side. Parking spaces on the driv-
er's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
switched on until you acknowledge the use of Active Parking Assist by pressing the 0076
button on the multifunction steering wheel.
The system automatically determines
whether the parking space is parallel or at
right-angles to the direction of travel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 50 ft (15 m) away from it.
Parking G
WARNING
Active Parking Assist merely aids you by inter- vening actively in the steering. If you do not
brake there is a risk of an accident. Always apply the brakes yourself when
maneuvering and parking.
X Stop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
X Shift the transmission to position R.
The Start Park Assist? Yes: OK No: Start Park Assist? Yes: OK No:
0038 message appears in the multifunction
display.
X To cancel the procedure: press the0038
button on the multifunction steering wheel
or pull away.
or X To park using Active Parking Assist:
press the 0076button on the multifunction
steering wheel.
The Park Assist Active Accelerate Park Assist Active Accelerate
and
and Brake
Brake Observe
Observe Surroundings
Surroundings mes-
sage appears in the multifunction display.
X Let go of the multifunction steering wheel.
X Back up the vehicle, being ready to brake at
all times. Do not exceed a maximum speed
of approximately 5 mph (10 km/h) when
backing up. Otherwise Active Parking
Assist will be canceled.
i In tight parking spaces, you will achieve
the best parking results by backing up as
far as possible. When doing so, also
observe the PARKTRONIC messages.
X Stop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
Maneuvering may be required in tight park-
ing spaces.
The Park Assist Active Select D
Park Assist Active Select D
Observe Observe Surroundings
Surroundings message appears in
the multifunction display.
X Shift the transmission to position Dwhile
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction. Driving systems
183Driving and parking Z