brakes MERCEDES-BENZ GLA-Class 2015 X156 Owner's Manual

Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 228
Notes ............................................. 365
Brake lamps
Changing bulb s.............................. 120
Display message ............................ 235
Brakes
ABS .................................................. 65
Adaptive Brake Assist ...................... 67
BAS .................................................. 65
Brake fluid (notes) ......................... 365
Display message ............................ 222
HOLD function ............................... 181
Important safety notes .................. 164
Maintenance .................................. 165
Parking brake ................................ 160
Riding tips ...................................... 164
Warning lamp ................................. 254
Breakdown
Where will I find...? ........................ 306
see Flat tire
see Towing away
see Tow-starting
Brightness control (instrument
cluster lighting) ................................... 33
Bulbs see Replacing bulbs C
California Important notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Carpets .......................................... 304
Car wash ........................................ 298
Displa y........................................... 302
Exhaust pipe .................................. 302
Exterior lights ................................ 301
Gear or selector lever .................... 303
General notes ................................ 297
Interior ........................................... 302 Matte finish ................................... 300
Paint .............................................. 299
Plastic trim .................................... 303
Power washe
r................................ 299
Rear view camera .......................... 302
Roof lining ...................................... 304
Seat belt ........................................ 304
Seat cover ..................................... 303
Sensors ......................................... 301
Steering wheel ............................... 303
Trim pieces .................................... 303
Washing by hand ........................... 298
Wheels ........................................... 300
Windows ........................................ 300
Wiper blades .................................. 301
Wooden trim .................................. 303
Cargo compartment enlargement ... 270
Important safety notes .................. 270
Cargo compartment floor
Important safety notes .................. 272
Opening/closing ............................ 272
Stowage well (under )..................... 272
Cargo tie down rings ......................... 271
Car key see SmartKey
Car wash
see Care
Center console
Lower section .................................. 37
Upper section .................................. 36
Central locking
Automatic locking (on-board com-
puter) ............................................. 217
Locking/unlocking (SmartKey )........ 76
Changing bulbs
Brake lamps ................................... 120
Cornering light function ................. 119
High-beam headlamp s................... 119
Low-beam headlamp s.................... 118
Rear fog lamp ................................ 120
Reversing lamps ............................ 120
Turn signals (front) ......................... 119
Turn signals (rear) .......................... 120
Child-proof locks
Important safety notes .................... 63
Rear doors ....................................... 64 6
Index

Central locking/unlocking
(SmartKey) ......................................
.76
Control panel .................................. .39
Display message ............................ 250
Emergency locking ........................... 83
Emergency unlocking ....................... 83
Important safety note s.................... 81
Opening (from inside) ...................... 81
Drinking and driving ......................... 163
Drive program Automatic ...................................... 153
Display ........................................... 150
Display (DIRECT SELECT lever) ...... 149
Manual ........................................... 154
SETUP (on-board computer) .......... 219
Driver's door
see Doors
Driver's seat
see Seats
Driving abroad
Mercedes-Benz Service ................. 297
Symmetrical low beam .................. 110
Driving in mountainous terrain
Approach/departure angle ............ 170
Driving off-road
see Off-road driving
Driving on flooded roads .................. 167
Driving safety systems ABS (Anti-lock Braking System) ....... 65
ADAPTIVE BRAK E............................. 72
Adaptive Brake Assist ...................... 67
BAS (Brake Assist System) .............. 65
COLLISION PREVENTION ASSIST
PLUS ................................................ 66
Distance warning function ............... 66
EBD (electronic brake force distri- bution) ............................................. 72
ESP ®
(Electronic Stability Pro-
gram) ............................................... 68
Important safety information ........... 64
Overview .......................................... 64
STEER CONTROL ............................. 72
Driving systems
Active Parking Assist ..................... 189
ATTENTION ASSIST ........................ 197
Blind Spot Assist ............................ 198
Cruise control ................................ 172 Display message ............................ 241
DISTRONIC PLUS ........................... 174
HOLD function ............................... 181
Lane Keeping Assist ...................... 200
Lane Tracking package .................. 198
PARKTRONIC ................................. 186
RACE START (AMG vehicles) .......... 183
Rear view camera .......................... 194
Driving tips
Automatic transmission ................. 151
Brakes ........................................... 164
Break-in period .............................. 142
Checking brake lining thickness .... 166
DISTRONIC PLUS ........................... 180
Downhill gradient ........................... 164
Drinking and driving ....................... 163
Driving abroad ............................... 110
Driving in winter ............................. 167
Driving on flooded roads ................ 167
Driving on sand .............................. 170
Driving on wet roads ...................... 167
Exhaust check ............................... 163
Fuel ................................................ 163
General .......................................... 162
Hydroplaning ................................. 167
Icy road surfaces ........................... 167
Limited braking efficiency on sal-
ted roads ....................................... 165
Off-road driving .............................. 168
Snow chains .................................. 327
Symmetrical low beam .................. 110
Tire ruts ......................................... 170
Traveling uphill ............................... 170
Wet road surface ........................... 165
DSR (Downhill Speed Regulation)
Display message ............................ 241
Function/note s............................. 184
DVD video (on-board computer) ...... 211 E
EASY-VARIO-PLUS system Cargo compartment enlargement .. 270
EBD (electronic brake force distri-
bution)
Display message ............................ 224
Function/note s................................ 72 Index
9

Display message ............................ 235
Switching on/off ........................... 112
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking ....................... 83
From inside the vehicle (central
unlocking button) ............................. 82 V
Vanity mirror (in the sun visor) ........ 275
Vehicle Correct use ...................................... 28
Data acquisition ............................... 29
Equipment ....................................... 24
Individual settings .......................... 215
Limited Warranty ............................. 29
Loading .......................................... 335
Locking (in an emergency )............... 83
Locking (SmartKey ).......................... 76
Lowering ........................................ 351
Maintenance .................................... 25
Parking for a long period ................ 162
Pulling away ................................... 144
Raising ........................................... 349
Reporting problems ......................... 28
Securing from rolling away ............ 349
Towing away .................................. 317
Tow-starting ................................... 317
Transporting .................................. 320
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey )...................... 76
Vehicle data ................................... 368
Vehicle battery
see Battery (vehicle)
Vehicle data
Roof load (maximum) ..................... 368
Vehicle data (off-road driving)
Approach/departure angle ............ 369
Maximum gradient climbing abil-
ity .................................................. 369
Maximum water depth ................... 369
Vehicle dimensions ........................... 368
Vehicle emergency locking ................ 83Vehicle identification number
see VIN
Vehicle identification plate .............. 360
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 306
Ventilation see Climate control
Video (DVD) ........................................ 211
VIN Seat ............................................... 361
Type plate ...................................... 360 W
Warning and indicator lamps ABS ................................................ 254
Brakes ........................................... 254
Check Engine ................................. 260
Coolant .......................................... 260
Distance warning ........................... 262
DISTRONIC PLUS ........................... 262
ESP ®
.............................................. 256
ESP ®
OFF ....................................... 257
Fuel tank ........................................ 260
Overview .......................................... 34
Reserve fue l................................... 260
Restraint system ............................ 259
Seat belt ........................................ 252
SPORT handling mod e................... 257
Tire pressure monitor .................... 263
Warranty .............................................. 24
Washer fluid Display message ............................ 251
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 351
Wheel chock ...................................... 349
see Wheel chock
Wheels
Changing a whee l.......................... 347
Checking ........................................ 325
Cleaning ......................................... 300
Cleaning (warning) ......................... 348
General notes ................................ 352
Important safety notes .................. 324
Information on driving .................... 324 Index
21

Warning and indicator lamps
Function Page
0043
0058
Low-beam head-
lamps 111
0044
0060
Parking lamps 112
0087
0057
High-beam head-
lamps 112
0085
00E5
ESP® 256
0083
Electric parking brake (red)
0049
(USA only) 0024
(Canada only) 259
0084
0024
Electric parking brake
(yellow) 259
006B
00BA
Distance warning 262
006C
003E003D
Turn signals 112
006D
0075
Restraint system 42
006E
00E9
Seat belt 252 Function Page
006F
0074
SPORT handling
mode in AMG vehicles 257
0070
00AC
Coolant 260
0071
005E
Rear fog lamp 112
0072
005A
Front fog lamps 111
0073
00B9
Check Engine 260
0074
0077
Tire pressure monitor 263
0075
00D4
Reserve fuel 260
0076
00BB
ESP®
OFF 256
0077
0025
ABS 254
0078
Brakes 254
0027
(USA only) 004D
(Canada only) 34
Instrument clusterAt a glance

Important safety notes
i
Observe the "Important safety notes" sec-
tion (Y page 64). 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 system 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 142).
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 64). G
WARNING
The distance warning function does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. 66
Driving safety systemsSafety

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 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.
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.
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.
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, adaptive Brake
Assist calculates the necessary brake pres-
sure to avoid this collision. Should you apply the brakes vigorously, Adaptive 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 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.
Up to a speed of approximately 44 mph
(70 km/h), adaptive Brake Assist reacts to
stationary obstacles. ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 64).
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. 68
Driving safety systemsSafety

ETS/4ETS (Electronic Traction System)
i
Observe the "Important safety notes" sec-
tion (Y page 64).
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 ®
.
Off-road 4ETS (Electronic Traction Sys-
tem) A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (Y page 186).
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.
! If you test the parking brake using a brake
dynamometer, switch the ignition off.
Application of the brakes by ESP ®
may oth-
erwise 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 319).
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 319).
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 256) and display messages which
may be shown in the instrument cluster
(Y page 222).
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. Driving safety systems
69Safety Z

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 151).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 engine has been switched off automat-
ically by the ECO start/stop function, the 00A7
symbol is shown in the multifunction
display.
The stop/start function is automatically acti-
vated each time you start the engine with the SmartKey.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
Automatic engine switch-off If the vehicle is braked to a standstill in
Dor N,
the ECO start/stop function switches off the engine automatically.
The ECO start/stop function is operational
when:
R the indicator lamp in the ECO button is lit
green.
R the off-road program is deactivated.
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.
i All of the vehicle's systems remain active
when the engine is stopped automatically.
i The HOLD function can also be activated
if the engine has been switched off auto-
matically. It is then not necessary to con-
tinue applying the brakes during the auto-
matic stop phase. When you depress the
accelerator pedal, the engine starts auto-
matically and the braking effect of the
HOLD function is deactivated.
i The engine can be switched off automat-
ically a maximum of four times (first stop
and three subsequent stops) in succession. Driving
145Driving and parking Z

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 159) 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 gear shift-
ing behavior is determined by:
R the selected drive program (Y page 152)
R the position of the accelerator pedal
(Y page 151)
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
151Driving 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 208). 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. 164
Driving tipsDriving an
d parking