brakes MERCEDES-BENZ CLA-Class 2014 C117 Owner's Manual

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

Rear view camera .......................... 186
Speed Limit Assist ........................
.190
Driving tips
Automatic transmission ................. 149
Brakes .......................................... .162
Break-in period .............................. 140
Checking brake lining thickness .... 164
DISTRONIC PLUS ........................... 174
Downhill gradient ........................... 162
Drinking and driving ....................... 161
Driving abroad ............................... 108
Driving in winter ............................ .165
Driving on flooded roads ................ 165
Driving on wet roads ..................... .165
Exhaust check ............................... 161
Fuel ................................................ 161
General .......................................... 160
Hydroplaning ................................. 165
Icy road surfaces ........................... 165
Limited braking efficiency on sal-
ted roads ....................................... 163
Snow chains .................................. 317
Symmetrical low bea m.................. 108
Wet road surface ........................... 163
DVD audio (on-board computer) ...... 202
DVD video (on-board computer) ...... 203E
EASY-VARIO-PLUS system Cargo compartment enlargement .. 259
EBD (electronic brake force distri-
bution) Display message ............................ 216
Function/note s................................ 71
ECO display
Function/note s............................. 161
On-board computer ....................... 200
ECO start/stop function
Automatic engine start .................. 144
Automatic engine switch-off .......... 143
Deactivating/activating ................. 144
General information ....................... 143
Important safety notes .................. 143
Introduction ................................... 143
Electronic Stability Program
see ESP ®
(Electronic Stability Program) Emergency release
Driver's door .................................... 83
Trunk ............................................... 86
Vehicle ............................................. 83
Emergency Tensioning Devices
Activation ......................................... 41
Function ........................................... 55
Safety guideline s............................. 42
Emissions control
Service and warranty information .... 22
Engine
Check Engine warning lamp ........... 251
Display message ............................ 230
ECO start/stop function ................ 143
Engine number ............................... 347
Irregular running ............................ 145
Jump-starting ................................. 305
Starting problems .......................... 145
Starting the engine with the
SmartKey ....................................... 142
Switching off .................................. 158
Tow-starting (vehicle) ..................... 310
Engine electronics
Problem (malfunction) ................... 145
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 284
Additives ........................................ 350
Checking the oil level ..................... 283
Checking the oil level using the
dipstick .......................................... 284
Display message ............................ 231
Filling capacity ............................... 350
Notes about oil grade s................... 349
Notes on oil level/consumption .... 283
Temperature (on-board com-
puter) ............................................. 210
Viscosity ........................................ 350
ESP ®
(Electronic Stability Pro-
gram) 4ETS ................................................ 68
AMG menu (on-board computer) ... 211
Characteristics ................................. 68
Deactivating/activating (AMG
vehicles) .......................................... 69 Index
9

W
Warning and indicator lamps ABS ................................................ 245
Brakes .......................................... .245
Check Engine ................................. 251
Coolant .......................................... 251
Distance warning ........................... 253
DISTRONIC PLUS ........................... 253
ESP ®
.............................................. 247
ESP ®
OFF ....................................... 248
Fuel tank ........................................ 251
Overview .......................................... 32
PASSENGER AIR BAG OFF indica-
tor lamp .......................................... .47
Reserve fuel .................................. .251
Seat belt ........................................ 243
SPORT handling mode ................... 248
SRS ................................................ 250
Tire pressure monitor .................... 254
Warranty .............................................. 22
Washer fluid Display message ............................ 242
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 340
Wheel chock ...................................... 337
Wheels Changing a wheel .......................... 335
Checking ........................................ 315
Cleaning ......................................... 289
Cleaning (warning) ......................... 336
Important safety notes .................. 314
Interchanging/changing ................ 336
Mounting a new wheel ................... 339
Mounting a wheel .......................... 336
Removing a wheel .......................... 339
Storing .......................................... .336
Tightening torque ........................... 340
Wheel size/tire size ....................... 340
Window curtain air bag
Display message ............................ 223
Operation ......................................... 47
Windows
see Side windows
Windshield
Defrosting ...................................... 133 Windshield washer system
Adding washer fluid ....................... 286
Notes ............................................. 352
Windshield wipers
Display message ............................ 242
Problem (malfunction) ................... 121
Replacing the wiper blades ............ 119
Switching on/off ........................... 118
Winter driving
Slippery road surfaces ................... 165
Snow chains .................................. 317
Winter operation
General notes ................................ 316
Winter tires
M+S tires ....................................... 316
Wiper blades
Cleaning ......................................... 290
Important safety notes .................. 119
Replacing (windshield )................... 119
Wooden trim (cleaning instruc-
tions) .................................................. 293
Workshop see Qualified specialist workshop Z
ZONE function Switching on/of f........................... 132 20
Index

Warning and indicator lamps
Function Page
0043
0058
Low-beam head-
lamps 109
0044
0060
Parking lamps 110
0087
0057
High-beam head-
lamps 110
0085
00E5
ESP® 247
0083
Electric parking brake (red)
0049
(USA only) 0024
(Canada only) 250
0084
0024
Electric parking brake
(yellow) 250
006B
00BA
Distance warning 253
006C
003E003D
Turn signals 110
006D
0075
SRS 250
006E
00E9
Seat belt 243 Function Page
006F
0074
SPORT handling
mode in AMG vehicles 248
0070
00AC
Coolant 251
0071
005E
Rear fog lamp 109
0072
005A
Fog lamps 109
0073
00B9
Check Engine 251
0074
0077
Tire pressure monitor 254
0075
00D4
Reserve fuel 251
0076
00BB
ESP®
OFF 247
0077
0025
ABS 245
0078
Brakes 245
0027
(USA only) 004D
(Canada only) 32
Instrument clusterAt a glance

This allows you to continue steering the vehi-
cle when braking.
The 0025 ABS warning lamp in the instrument
cluster lights up when the ignition is switched on. It goes out when the engine is running.
Important safety notes i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 63).G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid- ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information on the ABS warning lamp (Y page 245) and
display messages which may be shown in the
instrument cluster (Y page 214).
ABS works from a speed of about 5 mph
(8 km/h) , regardless of road-surface condi-
tions. ABS works on slippery roads, even if
you only brake gently.
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit- uation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
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
General notes COLLISION PREVENTION ASSIST consists of
the Adaptive Brake Assist and the distance
warning function, which are described in the
following.
Distance warning function Important safety notes
i Observe the "Important safety notes" sec-
tion (Y page 63). 64
Driving safety systemsSafety

sions at low speeds where there is no visible
damage to the front of the vehicle.
Adaptive Brake Assist i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 63).G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist may:
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 to stationary obstacles
R when cornering
As a result, 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.
Adaptive Brake Assist aids you in braking dur-
ing hazardous situations at speeds above
4 mph (7 km/h) and uses the radar sensor
system to evaluate the traffic situation.
With the help of a sensor system, adaptive
Brake Assist can detect obstacles that are in the path of your vehicle for an extended
period of time. Should you approach an obstacle and Adap-
tive Brake Assist has detected a risk of colli-
sion, Adaptive Brake Assist calculates the
braking force necessary to avoid a rear-end
collision. Should you apply the brakes vigo-
rously, Adaptive Brake Assist will automati-
cally increase the braking force to a level suit- able 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.
Vehicles with PRE-SAFE ®
:if adaptive Brake
Assist requires particularly high brake pres-
sure, preventative passenger protection
measures (PRE-SAFE ®
) are deployed simul-
taneously.
Up to vehicle speeds of around 250 km/h,
adaptive Brake Assist is capable of reacting to
moving objects that have already been rec-
ognized as such at least once over the period
of observation. Adaptive Brake Assist does
not react to stationary obstacles.
Up to vehicle speeds of around 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been recognized as such at least once
over the period of observation. Adaptive
Brake Assist does not react to stationary
obstacles.
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.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R there is snow or heavy rain 66
Driving safety systemsSafety

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/4ETS traction control is part of ESP ®
.
ETS brakes the drive wheels individually 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 transferred to
the wheel or wheels with traction.
ETS remains active when you deactivate
ESP ®
.
Important safety notes 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.
! When testing the electric parking brake
on a braking dynamometer, switch off the
ignition. Application of the brakes by ESP ®
may otherwise destroy the brake system.
! Vehicles with 4MATIC: switch off the igni-
tion when the electric parking brake is
being tested on a brake dynamometer.
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system.
! Vehicles with 4MATIC: function or per-
formance tests may only be carried out on
a 2-axle dynamometer. Before you operate the vehicle on such a dynamometer, please
consult a qualified workshop. You could
otherwise damage the drive train or the
brake system. !
Do not tow vehicles with 4MATIC with the
front or rear axle raised.
Vehicles without 4MATIC: when towing your
vehicle with the front axle raised, it is impor-
tant that you observe the notes on ESP ®
(Y page 309).
Vehicles with 4MATIC: when towing your
vehicle with both axles on the ground, it is
important that you observe the notes on ESP ®
(Y page 309).
ESP ®
is deactivated if the 00BBESP®
OFF
warning lamp in the instrument cluster lights
up continuously when the engine is running.
If the 00E5 ESP®
warning lamp and the 00BB
ESP ®
OFF warning lamp are lit continuously,
ESP ®
is not available due to a malfunction.
Observe the information on warning lamps
(Y page 247) and display messages which
may be shown in the instrument cluster
(Y page 214).
i Only use wheels with the recommended
tire sizes. Only then will ESP ®
function
properly.
Characteristics of ESP ® General information
If the
00E5 ESP warning lamp goes out before
beginning the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the 00E5ESP®
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- 68
Driving safety systemsSafety

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

Engaging park position P
X
When the vehicle is stationary, press Pbut-
ton 0043. Transmission positions
0045 Park position
Do not shift the transmission into
position
P(Y page 157) 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 immediately at a qualified
specialist workshop. 0046 Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. 0044 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 posi-
tion Nif the vehicle is in danger of
skidding, e.g. on icy roads.
When you switch off the engine, the automatic transmission automati-
cally shifts into neutral N. 003A 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 gearshift-
ing behavior is determined by:
R the selected drive program (Y page 150)
R the position of the accelerator pedal
(Y page 149)
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
Holding the vehicle stationary on uphill gradients G
WARNING
If the clutch overheats, the electronic man-
agement system is automatically deactivated. Automatic transmission
149Driving and parking
Z

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
i 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.
i On long journeys at a constant speed, e.g.
on the highway, only the bar for Constant
Constant
will change.
i The ECO display summarizes the driving
characteristics 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 manual reset.
For further information on the ECO display,
see (Y page 200). Braking
Important safety notes G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
Downhill gradients !
On long and steep gradients, you must
reduce the load on the brakes by shifting to
a lower gear in good time. This allows you to
take advantage of the engine's braking
effect. For this, you need to have selected
manual drive program M. This helps you to
avoid overheating the brakes and wearing
them out excessively.
When you take advantage of the engine's
braking effect, a drive wheel may not turn
for some time, e.g. on a slippery road sur-
face. This could cause damage to the drive train. This type of damage is not covered bythe Mercedes-Benz warranty.
i Briefly depressing the accelerator pedal
on downhill gradients while the manual
drive program Mis temporarily activated:
the automatic transmission may switch to
the last active automatic drive program Eor
S. The automatic transmission may shift to
a higher gear. This can reduce the engine's braking effect. 162
Driving tipsDriving an
d parking