brakes 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

Cruise control leve
r .......................173
Deactivating ................................... 176
Display message ............................ 237
Displays in the multifunction dis-
play ................................................ 176
Driving tips ................................... .177
Function/notes ............................ .171
Important safety notes .................. 171
Setting the specified minimum
distance ......................................... 175
Doors
Automatic locking (on-board com-
puter) ............................................. 212
Automatic locking (switch) .............. .82
Central locking/unlocking
(SmartKey) ...................................... .74
Control panel .................................. .36
Display message ............................ 244
Emergency locking ........................... 83
Emergency unlocking ....................... 83
Important safety note s.................... 81
Opening (from inside) ...................... 81
Drinking and driving ......................... 164
Drive program
Automatic ...................................... 154
Display ........................................... 151
Display (DIRECT SELECT lever) ...... 149
Manual ........................................... 155
SETUP (on-board computer) .......... 214
Driver's door
see Doors
Driving abroad
Mercedes-Benz Service ................. 291
Driving on flooded roads .................. 168
Driving safety systems
ABS (Anti-lock Braking System) ....... 63
ADAPTIVE BRAK E............................. 70
Adaptive Brake Assist ...................... 66
BAS (Brake Assist System) .............. 64
COLLISION PREVENTION ASSIST
PLUS ................................................ 64
Distance warning function ............... 64
EBD (electronic brake force distri- bution) ............................................. 70
ESP ®
(Electronic Stability Pro-
gram) ............................................... 67
ETS/4ETS (Electronic Traction
System) ........................................... 67 Important safety information ........... 63
Overview .......................................... 63
STEER CONTROL ............................. 70
Driving systems
Active Parking Assist ..................... 184
ATTENTION ASSIST ........................ 192
Blind Spot Assist ............................ 194
Cruise control ................................ 169
Display message ............................ 235
DISTRONIC PLUS ........................... 171
HOLD function ............................... 178
Lane Keeping Assist ...................... 196
Lane Tracking package .................. 194
PARKTRONIC ................................. 181
RACE START (AMG vehicles) .......... 180
Rear view camera .......................... 189
Driving tips
Automatic transmission ................. 152
Brakes ........................................... 165
Break-in perio d.............................. 140
Checking brake lining thickness .... 167
DISTRONIC PLUS ........................... 177
Downhill gradient ........................... 166
Drinking and driving ....................... 164
Driving in winter ............................. 168
Driving on flooded roads ................ 168
Driving on wet roads ...................... 168
Exhaust check ............................... 164
Fuel ................................................ 164
General .......................................... 163
Hydroplaning ................................. 168
Icy road surfaces ........................... 168
Limited braking efficiency on sal-
ted roads ....................................... 166
Snow chains .................................. 321
The first 1000 miles (1500 km) ..... 140
Wet road surface ........................... 166
DVD video
Operating (on-board computer) ..... 207 E
EBD (electronic brake force distri-
bution)
Display message ............................ 220
Function/note s................................ 70
ECO display
Function/note s............................. 165 8
Index

Transporting ..................................3
14
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey) ..................... .74
Vehicle data ................................... 359
Vehicle data
Roof load (maximum) .....................3 59
Trunk load (maximum) ................... 359
Vehicle dimensions ........................... 359
Vehicle emergency locking ................ 83
Vehicle identification number
see VIN
Vehicle identification plate .............. 352
Vehicle tool kit .................................. 300
Ventilation
Setting the vents ........................... 136
Video
Operating the DVD ......................... 207
VIN ...................................................... 352 W
Warning and indicator lamps ABS ................................................ 250
Brakes .......................................... .249
Check Engine ................................. 256
Coolant .......................................... 256
Distance warning ........................... 258
ESP ®
.............................................. 252
ESP ®
OFF ....................................... 253
LIM (DISTRONIC PLUS) .................. 173
Overview .......................................... 32
PASSENGER AIR BAG OFF .............. .41
Reserve fuel .................................. .256
Restraint system ............................ 255
Seat belt ........................................ 247
SPORT handling mode ................... 253
Tire pressure monitor .................... 259
Warranty .............................................. 21
Washer fluid
Display message ............................ 245
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 345
Wheel chock ...................................... 342
Wheels
Changing a wheel .......................... 341
Checking ........................................ 319
Cleaning ......................................... 294 General notes ................................ 345
Important safety notes .................. 318
Information on driving .................... 318
Interchanging/changing ................ 341
Mounting a new wheel ................... 344
Removing a wheel .......................... 344
Storing .......................................... .341
Tightening torque ........................... 345
Wheel size/tire size ....................... 345
Window curtain air bag
Display message ............................ 226
Operation ......................................... 48
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Windshield washer system
Adding washer fluid ....................... 290
Notes ............................................. 358
Windshield wipers
Display message ............................ 245
Problem (malfunction) ................... 122
Replacing the wiper blades ............ 121
Switching on/off ........................... 120
Winter driving
Slippery road surfaces ................... 168
Snow chains .................................. 321
Winter operation
General notes ................................ 320
Winter tires
M+S tires ....................................... 320
Wiper blades
Cleaning ......................................... 295
Important safety notes .................. 121
Replacing (windshield )................... 121
Wooden trim (cleaning instruc-
tions) .................................................. 297 Z
ZONE function Switching on/of f........................... 132 Index
19

Warning and indicator lamps
Function Page
:
L
Low-beam head-
lamps 111
;
T
Parking lamps 112
=
K
High-beam head-
lamps 112
?
÷
ESP® 252
A
Electric parking brake (red)
F
(USA only) !
(Canada only) 255
B
!
Electric parking brake
(yellow) 255
C
·
Distance warning 258
D
#!
Turn signals 112
E
6
Restraint system 40
F
ü
Seat belt 247 Function Page
G
M
SPORT handling
mode in AMG vehicles 253
H
?
Coolant 256
I
R
Rear fog lamp 111
J
N
Fog lamps 111
K
;
Check Engine 256
L
h
Tire pressure monitor 259
M
æ
Reserve fuel N
å
ESP®
OFF 252
O
!
ABS 250
P
Brakes 249
$
(USA only) J
(Canada only) 32
Instrument clusterAt a glance

The pulsating brake pedal can be an indica-
tion of hazardous road conditions, and func-
tions as a reminder to take extra care while
driving. BAS (Brake Assist System)
General information BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 63). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking X
Keep the brake pedal firmly depressed until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. COLLISION PREVENTION ASSIST
PLUS
General information COLLISION PREVENTION ASSIST PLUS con-
sists of a distance warning function with an
autonomous emergency braking function and
adaptive Brake Assist.
COLLISION PREVENTION ASSIST PLUS can
help you to minimize the risk of a front-end collision with a vehicle ahead or reduce the
effects of such a collision.
If COLLISION PREVENTION ASSIST PLUS
detects that there is a risk of a collision, you
will be warned visually and acoustically. If you
do not react to the visual and audible collision
warning, autonomous braking can be initiated in critical situations. If you apply the brake
yourself in a critical situation, the COLLISION PREVENTION ASSIST PLUS adaptive Brake
Assist assists you.
Important safety notes In particular, the detection of obstacles can
be impaired if:
R there is dirt on the sensors or anything else
covering the sensors
R there is snow or heavy rain
R there is interference by other radar sources
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
R new vehicles or after a service on the COL-
LISION PREVENTION ASSIST PLUS system
Observe the notes in the section on break- ing-in (Y page 140).
Following damage to the front end of the vehi- cle, have the configuration and operation of
the radar sensor checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at low speeds where there is no visible
damage to the front of the vehicle.
Distance warning function Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 63).64
Driving safety systemsSafety

Vehicles with DISTRONIC PLUS:
the auton-
omous braking function is available in the fol- lowing speed ranges:
R 5 - 124 mph (7 - 200 km/h) for moving
objects
R 5 - 31 mph (7 - 50 km/h) for stationary
objects
If the autonomous braking function requires a particularly high braking force, preventative
passenger protection measures (PRE-SAFE ®
)
are activated simultaneously.
Adaptive Brake Assist i
Observe the "Important safety notes" sec-
tion (Y page 63).
Adaptive Brake Assist provides braking assis- tance in hazardous situations at speeds
above 4 mph (7 km/h). It uses radar sensor
technology to assess the traffic situation. G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
R intervene unnecessarily
R not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation. G
WARNING
Adaptive Brake Assist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, the Adaptive Brake Assist may not intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause Brake Assist to inter-
vene.
If adaptive Brake Assist is not available due to a malfunction in the radar sensor system, thebrake system remains available with full
brake boosting effect and BAS.
With the help of adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
If adaptive Brake Assist detects a risk of col-
lision with the vehicle in front, it calculates
the braking force necessary to avoid a colli-
sion. If you apply the brakes forcefully, adap-
tive Brake Assist will automatically increase
the braking force to a level suitable for the
traffic conditions.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
R you release the brake pedal.
R there is no longer any danger of a collision.
R no obstacle is detected in front of your
vehicle.
Adaptive Brake Assist is then deactivated.
If adaptive Brake Assist demands particularly
high braking force, preventative passenger
protection measures (PRE-SAFE ®
) are activa-
ted simultaneously.
Up to a speed of approximately 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been detected as such at least once
over the period of observation.
Up to a speed of approximately 44 mph
(70 km/h), adaptive Brake Assist reacts to
stationary obstacles. 66
Driving safety systemsSafety

ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 63).
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 63).
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 63). 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 313).
ESP ®
is only deactivated if the åwarning
lamp is lit continuously.
If the ÷ warning lamp and the åwarn-
ing lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 252) and display messages which
may be shown in the instrument cluster
(Y page 218).
Only use wheels with the recommended tire
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ® General information
If the
÷ ESP®
warning lamp goes out
before beginning the journey, ESP ®
is auto-
matically active.
If ESP ®
intervenes, the ÷ESP®
warning
lamp flashes in the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X Only depress the accelerator pedal as far as
necessary when pulling away.
X Adapt your driving style to suit the prevail-
ing road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts automati-
cally when the driver wants to pull away again. ESP ®
remains in its previously selected sta-
tus. Example: if ESP®
was deactivated before
the engine was switched off, ESP ®
remains
deactivated when the engine is switched on
again. Driving safety systems
67Safety Z

R
the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active
when the engine is stopped automatically.
The HOLD function can also be activated if the
engine has been switched off automatically. It is then not necessary to continue applying the brakes during the automatic stop phase.
When you depress the accelerator pedal, the
engine starts automatically and the braking
effect of the HOLD function is deactivated.
The engine can be switched off automatically
a maximum of four times (first stop and three subsequent stops) in succession.
Automatic engine start The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is not active
R you depress the accelerator pedal
R you engage reverse gear R
R you move the transmission out of position
P
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 battery's condition of charge is too low
Shifting the transmission to position Pdoes
not start the engine Deactivating/activating the ECO start/
stop function
X
To deactivate: press ECO button :.
Indicator lamp ;goes out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If the indicator lamp on the ECO button is off, the ECO start/stop function has been deac-
tivated manually or as the result of a mal-
function. 146
DrivingDriving an
d parking

Transmission positions
B Park position
This prevents the vehicle from roll- ing away when stopped.
Do not shift the transmission into
position P(Y page 149) unless the
vehicle is stationary. The parking
lock should not be used as a brake when parking. Always apply the
electronic parking brake in addi-
tion to the parking lock in order to
secure the vehicle.
If the vehicle electronics are mal-
functioning, the transmission may
be locked in position P. Have the
vehicle electronics checked imme-
diately at a qualified specialist
workshop.
Park position Pis automatically
engaged if:
R you switch off the engine using
the SmartKey and remove the
SmartKey
R you switch off the engine using
the SmartKey or using the Start/
Stop button and open the driv-
er's door or front-passenger
door
R the driver's door is opened when
the vehicle is stationary or driv-
ing at very low speed and the
transmission is in position Dor R C Reverse gear
Only shift the transmission to R
when the vehicle is stationary. A Neutral
Do not shift the transmission to
N
while driving. Otherwise, the auto-
matic transmission could be dam-
aged.
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:
shift the transmission to position N
if the vehicle is in danger of skid-
ding, e.g. on icy roads.
If you switch the engine off with the transmission in position Ror D, the
automatic transmission shifts to N
automatically.
! Rolling in neutral
Ncan damage
the drive train. 7 Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Driving tips
Changing gear The automatic transmission shifts to the indi-
vidual gears automatically when it is in trans-
mission position D. This automatic gear shift-
ing behavior is determined by:
R the selected drive program (Y page 153)
R the position of the accelerator pedal
(Y page 152)
R the road speed
Accelerator pedal position Your style of driving influences how the auto-
matic transmission shifts gear:
R little throttle: early upshifts
R more throttle: late upshifts 152
Automatic transmissionDriving an
d parking

ECO display
The ECO display provides feedback on how
economical your driving characteristics are.
The ECO display assists you in achieving the
most economical driving style for the selec-
ted settings and prevailing conditions. Your
driving style can significantly influence the
vehicle's consumption.
The ECO display consists of three bars:
R Acceleration
Acceleration
R Constant Constant
R Coasting
Coasting
The percent value is the average value of the three bars. The three bars and the mean value
begin at the value of 50%. A higher percent-
age indicates a more economical driving
style.
The ECO display does not indicate the actual fuel consumption. A fixed percentage count
in the ECO display does not indicate a fixed
consumption.
Apart from driving style, consumption is
dependent on many factors such as, e.g.:
R load
R tire pressure
R cold start
R choice of route
R electrical consumers switched on
These factors are not included in the ECO dis-
play.
The evaluation of your driving style is carried
out using the following three categories: R
Acceleration
Acceleration (evaluation of all accelera-
tion processes):
- The bar fills up: moderate acceleration,
especially at higher speeds
- The bar empties: sporty acceleration
R Constant
Constant (assessment of driving behavior
at all times)
- The bar fills up: constant speed and
avoidance of unnecessary acceleration
and deceleration
- The bar empties: fluctuations in speed
R Coasting Coasting (assessment of all deceleration
processes)
- The bar fills up: anticipatory driving,
keeping your distance and early release
of the accelerator. The vehicle can coast without use of the brakes.
- The bar empties: frequent braking
An economical driving style specially requires driving at moderate engine speeds.
To achieve a higher value in the categories
Acceleration Acceleration andConstant Constant:
R observe the gearshift recommendations.
R drive in drive program E.
On long journeys at a constant speed, e.g. on
the highway, only the bar for Constant
Constantwill
change.
The ECO display summarizes the driving char- acteristics from the start of the journey to its completion. For this reason, the bars change
dynamically at the beginning of the journey.
On longer journeys, there are fewer changes. For more dynamic changes, carry out a man- ual reset.
For further information on the ECO display,
see (Y page 204). Braking
Important safety notes G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking Driving tips
165Driving and parking
Z