ECO mode MERCEDES-BENZ CLA-Class 2015 C117 Owner's Manual

Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 232
see Lights
Automatic car wash (care) ...............292
Automatic engine start (ECO start/
stop function) ................................... .146
Automatic engine switch-off (ECO
start/stop function) .......................... 145
Automatic headlamp mode .............. 110
Automatic transmission
Accelerator pedal position ............. 152
Automatic drive program .............. .154
Changing gear ............................... 152
DIRECT SELECT lever ..................... 148
Drive program displa y.................... 149
Driving tips .................................... 152
Emergency running mode .............. 158
Engaging drive position .................. 151
Engaging neutral ............................ 150
Engaging park position (AMG vehi-
cles) ............................................... 151
Engaging park position automati-
cally ............................................... 149
Engaging reverse gear ................... 150
Engaging the park position ............ 149
Holding the vehicle stationary on
uphill gradients .............................. 153
Kickdown ....................................... 153
Manual drive progra m.................... 155
Oil temperature (on-board com-
puter, AMG vehicles) ..................... 214
Overview ........................................ 148
Problem (malfunction) ................... 158
Program selector button ................ 153
Pulling away ................................... 144
Selector lever ................................ 151
Starting the engine ........................ 144
Steering wheel paddle shifters ...... 154
Transmission position dis-
play ........................................ 149, 151
Transmission positions .................. 152
Automatic transmission emer-
gency mode ....................................... 158 B
Backup lamp Display message ............................ 231
BAS (Brake Assist System) ................. 64
Battery (SmartKey)
Checking .......................................... 77
Important safety notes .................... 77
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 307
Display message ............................ 234
Important safety notes .................. 305
Jump starting ................................. 309
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 211
Display message ............................ 236
Notes/function .............................. 194
Brake fluid
Display message ............................ 224
Notes ............................................. 357
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Changing bulb s.............................. 119
Display message ............................ 230
Brakes
ABS .................................................. 63
Adaptive Brake Assist ...................... 66
BAS .................................................. 64
Brake fluid (notes) ......................... 357
Display message ............................ 218
EBD .................................................. 70
Hill start assist ............................... 145
HOLD function ............................... 178
Important safety notes .................. 165
Maintenance .................................. 166
Parking brake ................................ 162
Riding tips ...................................... 165
Warning lamp ................................. 249
Breakdown
see Flat tire
Brightness control (instrument
cluster lighting) ................................... 31
Buttons on the steering wheel ......... 201 Index
5

Sockets
Center console .............................. 271
General notes ................................ 271
Rear compartment .........................2 71
Trunk ............................................. 271
Special seat belt retractor .................. 57
Specialist workshop ............................ 24
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 212
Digital ............................................ 205
In the Instrument cluster ................. 31
Segments ...................................... 201
Selecting the unit of measure-
ment .............................................. 211
SPORT handling mode
Activating/deactivating (AMG
vehicles) .......................................... 68
Warning lamp ................................. 253
Standing lamps
Display message ............................ 231
Switching on/off ........................... 112
Start/Stop button
Removing ....................................... 143
Starting the engine ........................ 144
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 143
STEER CONTROL .................................. 70
Steering (display message) .............. 245
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (manually) ...................... 102
Button overview ............................... 33
Buttons (on-board computer) ......... 201
Cleaning ......................................... 297
Important safety notes .................. 102
Paddle shifters ............................... 154
Steering wheel paddle shifters ........ 154
Stopwatch (RACETIMER) ................... 214
Stowage compartments
Armrest (front) ............................... 264
Armrest (under) ............................. 264 Center console .............................. 263
Center console (rear) ..................... 264
Cup holders ................................... 268
Eyeglasses compartment ............... 263
Glove box ....................................... 263
Important safety information ......... 263
Map pockets .................................. 265
Stowage net ................................... 265
Under driver's seat/front-
passenger sea t.............................. 264
Stowage net ....................................... 265
Stowage well beneath the trunk
floor .................................................... 267
Summer tires ..................................... 320
Sun visor ............................................ 269
Switching air-recirculation mode
on/off ................................................. 135 T
Tachometer ........................................ 201
Tail lamps
Display message ............................ 230
see Lights
Tank content
Fuel gauge ....................................... 31
Technical data
Capacities ...................................... 353
Information .................................... 352
Tires/wheels ................................. 345
Vehicle data ................................... 359
Telephone
Accepting a call (multifunction
steering wheel) .............................. 208
Display message ............................ 245
Introduction ................................... 208
Menu (on-board computer) ............ 208
Number from the phone book ........ 208
Redialing ........................................ 209
Rejecting/ending a call ................. 208
Temperature
Coolant .......................................... 200
Coolant (on-board computer,
AMG vehicles) ................................ 214
Engine oil (on-board computer,
AMG vehicles) ................................ 214
Outside temperature ...................... 201
Setting (climate control )................ 131 16
Index

the Service and Guarantee booklet or simply
call the Mercedes-Benz Customer Assistance
Center (USA) at the hotline number
1-800-FOR-MERCede s(1-800-367-6372 )or
Customer Service (Canada) at
1-800-387-0100. Vehicle operation outside the USA
and Canada
If you plan to operate your vehicle in foreign
countries, please be aware that:
R service facilities or replacement parts may
not be readily available.
R unleaded fuel for vehicles with a catalytic
converter may not be available. Leaded fuel may cause damage to the catalytic con-
verter.
R the fuel may have a considerably lower
octane rating. Unsuitable fuel can cause
engine damage.
Some Mercedes-Benz models are available
for delivery in Europe through our European
Delivery Program. For details, consult an
authorized Mercedes-Benz Center or write to
one of the following addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9 Operating safety
Important safety notes
G
WARNING
If you do not have the prescribed service/
maintenance work or any required repairs carried out, this can result in malfunctions or
system failures. There is a risk of an accident.
Always have the prescribed service/mainte-
nance work as well as any required repairs
carried out at a qualified specialist workshop. G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop. G
WARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
! There is a risk of damage to the vehicle if:
R the vehicle becomes stuck, e.g. on a high
curb or an unpaved road
R you drive too fast over an obstacle, e.g. a
curb or a hole in the road
R a heavy object strikes the undercarriage
or parts of the chassis Introduction
23 Z

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 24). Panic alarm
X
To activate: press and hold the
! button :for approx. one second.
A visual and audible alarm is triggered if the alarm system is armed.
X To deactivate: press!button :
again.
or
X Insert the SmartKey into the ignition lock.
or, in vehicles with KEYLESS-GO start-func-
tion or KEYLESS ‑GO
X Press the Start/Stop button.
The SmartKey must be in the vehicle. Occupant safety
Restraint system: introduction
The restraint system reduces the risk of vehi-
cle occupants coming into contact with parts of the vehicle's interior in the event of an
accident. The restraint system can also
reduce the forces to which vehicle occupants
are subjected during an accident.
The restraint system comprises:
R Seat belt system
R Air bags
R Child restraint system
R Child seat securing systems
The components of the restraint system work
in conjunction with each other. They can only deploy their protective function if, at all times,
all vehicle occupants:
R have fastened their seat belts correctly
(Y page 44)
R have adjusted their seat and head restraint
properly (Y page 97).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the cor-
rect driver's seat position (Y page 96).
You also have to make sure that an air bag can inflate properly if deployed (Y page 46).
An air bag supplements a correctly worn seat
belt. As an additional safety device, the air
bag increases the level of protection for vehi-
cle occupants in the event of an accident. For example, if, in the event of an accident, the
protection offered by the seat belt is suffi-
cient, the air bags are not deployed. When an
accident occurs, only the air bags that
increase protection in that particular accident
situation are deployed. However, seat belts
and air bags generally do not protect against objects penetrating the vehicle from the out-
side.
Information on restraint system operation
can be found under "Triggering of the Emer-
gency Tensioning Devices and air bags"
(Y page 54). 40
Occupant safetySafety

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 24). 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 P
R 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
:
& Locks the vehicle
; F Opens the trunk lid
= % Unlocks the vehicle
If you do not open the vehicle within approx-
imately 40 seconds of unlocking, the vehicle
will lock again.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again
R protection against theft is reactivated. 74
SmartKeyOpening and closing

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 24). Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom- mends that you drive with the lights switchedon even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations. Setting the exterior lighting
Setting options Exterior lighting can be set using:
R the light switch
R the combination switch (Y page 112)
R the on-board computer (Y page 212)Light switch Operation
1
W
Left-hand standing lamps
2 X
Right-hand standing lamps
3 T
Parking lamps, license plate and
instrument cluster lighting
4 Ã
Automatic headlamp mode, control-
led by the light sensor
5L Low-beam/high-beam headlamps
B R
Rear fog lamp
C N
Fog lamp (only vehicles with front
fog lamps)
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
The exterior lighting (except the parking/
standing lamps) switches off automatically if
you: R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey in
position 0
Automatic headlamp mode
à is the favored light switch setting. The
light setting is automatically selected accord- ing to the brightness of the ambient light
(exception: poor visibility due to weather con-
ditions such as fog, snow or spray):
R SmartKey in position 1in the ignition lock:
the parking lamps are switched on or off 110
Exterior lightingLights and windshield wipers

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 24). Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the defrost windshield function
briefly, if required
The air-conditioning system/dual-zone auto-
matic climate control regulates the tempera- ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
The air-conditioning system/dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum opera-
tion is only achieved with the side windows
and panorama roof with power tilt/sliding
panel closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 135).
Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear (Y
page 119). Otherwise the vehicle will
not be ventilated correctly.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 87). This
will speed up the cooling process and the
desired interior temperature will be
reached more quickly.
i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol- lutants and odors. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always observe the interval for replacing the filter,which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
i It is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry the automatic climate control. The vehicle
is then ventilated for 30 minutes. 124
Overview of climate control systemsClimate control

?
Activates/deactivates air-recirculation mode (Y page 135)
A Sets the airflow (Y page 132)
B Switches cooling with air dehumidification on/off (Y page 129)
C Switches the rear window defroster on/off (Y page 134)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on the air-conditioning system by
turning control knob Aclockwise 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 ¿cooling with
dehumidification function (Y page 129).
Set air distribution to ¯and if possible
switch off PandO (Ypage 132).
Deactivate air-recirculation mode e
(Y page 135).
Set airflow control Ato a setting between
3 and 6(Y page 132).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control Ato a setting between 3
and 6(Y page 132).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol Ato a setting between 1and 3
(Y page 132).
R Recommendation for air distribution in
winter: select the Oand¯ settings
(Y page 132).
Recommendation for air distribution in
summer: select the PorP and
¯ settings (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 If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
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 146). 126
Overview of climate control systemsClimate control

R
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 If you change the settings of the climate
control system, the climate status display
appears for approximately three seconds
at the bottom of the screen in the Audio/
COMAND display (see separate operating
instructions). You will see the current set-
tings of the various climate control func-
tions.
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 146). 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
Air-conditioning system X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 141).
X To switch on: turn controlAclockwise to
the desired position (except position 0)
(Y page 125).
X To switch off: turn controlAcounter-
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 theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up.
i Dual-zone automatic climate control:
switch on climate control primarily using
the à 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

Automatic transmission
X
Shift the transmission to position P
(Y page 149).
The transmission position display in the
multifunction display shows
P (Y page 149).
When the transmission is in position N, you
can also start the engine with the brake pedal
depressed.
Starting procedure with the SmartKey To start the engine using the SmartKey
instead of the Start/Stop button, pull the
Start/Stop button out of the ignition lock.
X Turn the SmartKey to position 3
(Y page 141) in the ignition lock and release
it as soon as the engine is running.
Starting procedure with the Start/Stop button The Start/Stop button can be used to start
the vehicle manually without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted in the ignition
lock and the SmartKey must be in the vehicle. This mode for starting the engine operates
independently of the ECO start/stop auto-
matic engine start function.
You can start the engine if a valid SmartKey is in the vehicle. Switch off the engine and
always take the SmartKey with you when
leaving the vehicle, even if you only leave it for
a short time. Pay attention to the important
safety notes.
X Depress the brake pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 141).
The engine starts. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
Depress the accelerator carefully when pull-
ing away.
The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking feature (Y page 212).
It is only possible to shift the transmission
from position Pto the desired position if you
depress the brake pedal. Only then can the
parking lock be deactivated.
All vehicles (except AMG vehicles): if you
do not depress the brake pedal, the DIRECT
SELECT lever can still be moved but the park- ing lock remains engaged.
AMG vehicles: if you do not depress the
brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission fluid temperatures below
Ò4 ‡ (Ò20 †), you can only shift out of park
position Pinto another transmission position
when the engine is running.
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Information on the automatic release of the
electric parking brake (Y page 162).144
DrivingDriving and pa
rking