check engine light MERCEDES-BENZ GLA SUV 2017 Owners Manual

Demisting the windscreen ............
.134
Indicator lamp ................................ 132
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 131
Notes on using the air-condition-
ing system ..................................... 129
Overview of systems ..................... .128
Problem with the rear window
heating .......................................... 135
Problems with cooling with air
dehumidification ............................ 132
Setting the air distribution ............. 133
Setting the air vents ..................... .141
Setting the airflow ......................... 134
Setting the temperature ................ 133
Switching air-recirculation mode
on/off ............................................ 135
Switching on/off ........................... 131
Switching residual heat on/off ...... 137
Switching the rear window heat-
ing on/off ...................................... 135
Switching the ZONE function
on/off ............................................ 134
THERMOTRONIC (2-zone) auto-
matic climate control ..................... 130
Cockpit
Overview .......................................... 32
Collision warning
see Active Brake Assist
COMAND display
Cleaning ......................................... 312
COMAND Online
Driving dynamics displa y............... 192
Combination switch .......................... 118
Connecting a USB device
See also Digital Owner's Manua l... 277
Consumption statistics (on-board
computer) .......................................... 221
Controller ........................................... 278
Convenience closing feature .............. 99
Convenience opening feature ............ 98
Convenience opening/closing (air-
recirculation mode) ........................... 136
Coolant (engine)
Checking the level ......................... 305
Display message ............................ 249 Important safety notes .................. 356
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 231
Temperature gaug e........................ 218
Warning lamp ................................. 273
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function
Display message ............................ 246
Cover
see Roller sunblind
Cruise control
Activation conditions ..................... 177
Cruise control lever ....................... 176
Deactivating ................................... 178
Display message ............................ 255
Driving system ............................... 176
Important safety notes .................. 176
LIM indicator lamp ......................... 176
Selecting ........................................ 177
Setting a speed .............................. 177
Storing and maintaining current
speed ............................................. 177
Cup holder
Centre console .............................. 297
Important safety notes .................. 296
Rear compartment ......................... 297 D
Dashboard see Cockpit
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Data modem mode
Telephone module with Blue-
tooth ®
(SAP profile) ....................... 285
Daytime driving lights
Display message ............................ 248
Function/note s............................. 116
Switching on/off (on-board com-
puter) ............................................. 229
Dealership
see Qualified specialist workshop
Declarations of conformity ................. 278
Index

Emergency key
Unlocking the driver's door .............. 88
Emergency key element
Function/notes ................................ 81
Inserting .......................................... 82
Locking vehicle ................................ 88
Removing ........................................ .82
Emergency release
Driver's door .................................... 88
Emergency spare wheel
General notes ................................ 348
Important safety notes .................. 348
Removing ...................................... .348
Emergency unlocking
Vehicle ............................................. 88
Engine
Display message ............................ 249
ECO start/stop function ................ 148
Engine number ............................... 352
Jump-starting ................................. 325
Running irregularl y......................... 150
Starting (important safety notes )... 145
Starting problems .......................... 150
Starting the engine with the key .... 146
Starting with the Start/Stop but-
ton ................................................. 146
Stopping ........................................ 166
Tow-starting (vehicle) ..................... 331
Warning lamp (engine diagnos-
tics) ............................................... 272
Engine electronics
Notes ............................................. 350
Problem (fault) ............................... 150
Engine oil
Additives ........................................ 356
Checking the oil level ..................... 304
Checking the oil level using the
dipstick .......................................... 304
Display message ............................ 250
Filling capacity ............................... 356
Notes about oil grade s................... 355
Notes on oil level/consumption .... 304
Temperature (on-board computer, Mercedes-AMG vehicles) ............... 231
Topping up ..................................... 305
Engine oil additives
see Additives (engine oil) Entering an address
See also Digital Owner's Manua l... 277
Environmental protection
Returning an end-of-life vehicle ....... 26
ESC (Electronic Stability Control)
see ESP ®
(Electronic Stability Program)
ESP ®
(Electronic Stability Pro-
gram)
Activating/deactivating (on-
board computer) ............................ 266
AMG menu (on-board computer) ... 232
Characteristics ................................. 72
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 73
Deactivating/activating (except
Mercedes‑ AMG vehicles) ................. 73
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 227
Display message ............................ 235
Function/note s................................ 72
General notes .................................. 72
Important safety guidelines ............. 72
Trailer stabilisation .......................... 75
Warning lamp ................................. 269
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 72
Exhaust
see Exhaust pipe
Exhaust pipe
Cleaning ......................................... 312
Exterior lighting
Cleaning ......................................... 311
see Lights
Exterior mirrors
Adjusting ....................................... 112
Anti-dazzle mode (automatic) ........ 113
Folding in when locking (on-boardcomputer) ...................................... 231
Folding in/out (automatically )....... 113
Folding in/out (electrically) ........... 113
Out of position (troubleshooting) ... 113
Parking position ............................. 114
Resetting ....................................... 113
Storing settings (memory func-
tion) ............................................... 115 Index
11

H
Handling control system see ESP ®
(Electronic Stability Program)
HANDS-FREE ACCESS ................... 91, 95
Hazard warning lamps
Display message ............................ 263
Switching on/off ........................... 118
Head restraints
Adjusting ....................................... 108
Adjusting (manually) ...................... 109
Adjusting (rear) .............................. 109
Fitting/removing (rear) .................. 109
Headlamp flasher .............................. 118
Headlamps
Misting up ...................................... 119
see Automatic headlamp mode
Heating
see Climate control
High-pressure cleaners .................... 309
Hill start assist .................................. 147
HOLD function
Activating ....................................... 187
Activation conditions .................... .186
Deactivating ................................... 187
Display message ............................ 252
Function/notes ............................ .186
Home address
See also Digital Owner's Manual ... 277
Horn ...................................................... 32 I
Ignition key see Key
Ignition lock
see Key positions
Immobiliser .......................................... 76
Indicator and warning lamp
Restraint system ............................ 272
Indicator and warning lamps
Coolant .......................................... 273
Engine diagnostics ......................... 272
SPORT handling mode ................... 270
Indicator lamps
Display message ............................ 246
see Warning and indicator lamps Indicators
see Turn signals
Instrument cluster
Overview .......................................... 34
Settings ......................................... 228
Warning and indicator lamps ........... 34
Instrument cluster lighting .............. 217
Interior lighting
Control .......................................... .120
Overview ........................................ 119
Reading lamp ................................. 119
Interior motion sensor
Deactivating ..................................... 78
Function .......................................... .77
Priming ............................................ 77
Switching off .................................... 77
iPod ®
See also Digital Owner's Manual ... 277
ISOFIX child seat securing system ....57 J
Jack Declaration of conformity ................27
Storage location ............................ 317
Using ............................................. 344
Jump starting (engine) ...................... 325 K
Key Changing the battery ....................... 82
Checking the battery ....................... 82
Convenience closing feature ............ 99
Convenience opening feature .......... 98
Display message ............................ 263
Door central locking/unlocking ....... 79
Emergency key element ................... 81
Important safety notes .................... 79
Loss ................................................. 84
Modifying the programming ............. 81
Positions (ignition lock) ................. 144
Problem (malfunction) ..................... 84
Starting the engine ........................ 146
Key positions
Start/Stop button .......................... 144
Key positions (ignition lock) ............ 144 Index
13

Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz. Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and at regular intervals while the engine is running.
Therefore, malfunctions can be detected in
good time.
The 6 restraint system warning lamp on the
instrument cluster lights up when the ignition is
switched on. It goes out no later than a few sec- onds after the vehicle is started. The compo-
nents of the restraint system are in operational
readiness.
A malfunction has occurred if the 6restraint
system warning lamp:
R does not light up after the ignition is switched
on
R does not go out after a few seconds with the
engine running
R lights up again while the engine is running G
WARNING
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This may affect
the seat belt tensioner or airbag, for example. This poses an increased risk of injury or even
fatal injury.
Have the restraint system checked and
repaired immediately at a qualified specialist
workshop. PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG ON indicator lamp
:and
PASSENGER AIR BAG OFF indicator lamp ;are
part of the automatic deactivation system of the front-passenger front airbag.
The indicator lamps display the status of the
front-passenger front airbag.
R PASSENGER AIR BAG ON lights up for 60 sec-
onds, then both indicator lamps are off
(PASSENGER AIR BAG ON and OFF): the front-
passenger front airbag is able to deploy in the event of an accident.
R PASSENGER AIR BAG OFF lights up: the front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident.
If the PASSENGER AIR BAG ON indicator lamp is off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front airbag. The PASSENGER AIR BAG OFF indi-
cator lamp may be lit continuously or be off.
Depending on the person in the front-passenger seat, the front-passenger front airbag must be
either disabled or enabled; see the following
points. You must make sure of this both before
and during a journey.
R Children in a rearward-facing child
restraint system: the PASSENGER AIR BAG
OFF indicator lamp must be lit. The front-
passenger front airbag is disabled. Make sure
that you read the notes on the "Automatic
front-passenger front airbag deactivation sys-
tem" (Y page 49) and on "Children in the
vehicle" (Y page 56).
R Children in a forward-facing child
restraint system: depending on the installed
child restraint system and the age and size of
the child, the front-passenger front airbag is
either disabled or enabled. Therefore, make
sure that you read the notes on the "Auto-
matic front-passenger front airbag deactiva- 42
Occupant safetySafety

Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
(Y page 68)
R BAS (Brake AssistSystem) (Y page 69)
R Active Brake Assist (Y page 69)
R Adaptive brake lights (Y page 71)
R ESP ®
(E lectronic StabilityProgram)
(Y page 72)
R EBD (electronic brake forcedistribution)
(Y page 75)
R ADAPTIVE BRAKE (Y page 75)
R STEER CONTROL (Y page 75)Important safety notes
If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override
the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt your driving style to suit the prevailing road and weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described work as
effectively as possible only when there is ade-
quate contact between the tyres and the road
surface. Please pay special attention to the
notes on tyres, recommended minimum tyre
tread depths etc. (Y page 335).
In wintry driving conditions, always use winter
tyres (M+S tyres) and, if necessary, snow
chains. Only in this way will the driving safety
systems described in this section work as effec-
tively as possible. ABS (Anti-lock Braking System)
General information ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when braking. The
! ABS warning lamp on the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 8 km/h,
regardless of road-surface conditions. ABS
works on slippery surfaces, even when you
brake only gently.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 68). 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.
If ABS is malfunctioning, other systems, includ-
ing driving safety systems, will also become
inoperative. Observe the information on the ABS warning lamp (Y page 267) and display mes-
sages that may be shown on the instrument
cluster (Y page 235).
Brakes X
If ABS intervenes: continue to depress the
brake pedal with force 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 indication
of hazardous road conditions; this serves as a
reminder to take extra care while driving.
Off-road ABS An ABS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (Y
page 192).
At speeds below 30 km/h, the front wheels lock
cyclically during braking. The digging-in effect
achieved in the process reduces the stopping 68
Driving safety syste
msSafety

brakes are applied again, the brake lamps light
up continuously. The hazard warning lamps
switch off automatically if you travel faster than
10 km/ h.You can also switch off the hazard
warning lamps using the hazard warning button (Y page 118). ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 68).
ESP ®
monitors driving stability and traction, i.e.
power transmission between the tyres 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 stabilise the vehicle. The
engine output is also modified to keep the vehi- cle on the desired course within physical limits.
ESP ®
assists the driver when pulling away on
wet or slippery roads. ESP ®
can also stabilise
the vehicle during braking.
ETS/4ETS (Electronic Traction System) i
Observe the "Important safety notes" sec-
tion (Y page 68).
ETS traction control is part of ESP ®
. On vehicles
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, e.g. if the road surface is slippery on one side. In addi-
tion, more drive torque is transferred to the
wheel or wheels with traction.
Traction control remains active if 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 192).
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 68). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses 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 329).
If the å ESP®
OFF warning lamp lights up
continuously, ESP ®
is deactivated.
If the ÷ ESP®
warning lamp and the å
warning lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Read the information on warning lamps
(Y page 269) and display messages that may be
shown in the instrument cluster (Y page 235).
Use only wheels with the recommended tyre
sizes. Only then will ESP ®
function properly.
Characteristics of ESP ® General information
If the ÷ ESP warning lamp goes out before
you begin the journey, ESP ®
is automatically
active.
If ESP ®
intervenes, the ÷ESP®
warning lamp
flashes on the instrument cluster.
If ESP ®
intervenes:
X Do not deactivate ESP ®
under any circum-
stances.
X When pulling away, depress the accelerator
pedal only as far as is necessary.
X Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving. When pulling away again, the engine
starts automatically. ESP ®
remains in its previ-
ously selected status. Example:if ESP®
was
deactivated before the engine was switched off,
ESP ®
remains deactivated when the engine is
switched on again. 72
Driving safety systemsSafety

If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle locks again
R protection against theft is reactivated
X To lock: press the &button.
The key centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap
During unlocking, the turn signals flash once.
During locking, they flash three times.
When the locator lighting is activated via the
multimedia system, it lights up when it is dark
after the vehicle is unlocked with the remote
control; see the separate operating instructions.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated or deactivated using the
on-board computer (Y page 229).
X To open the tailgate automatically from
outside the vehicle: press and hold theF
button until the tailgate opens (Y page 95).
Vehicles with KEYLESS-GO or KEYLESS-GO
start function: X To close the tailgate automatically from
outside the vehicle:
if the key is located in
the immediate vicinity of the vehicle, press
the F button on the key (Y page 90).
When the tailgate closes, you can then
release the button. KEYLESS-GO
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a key in
the vehicle.
Locking and unlocking You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO
functions with the functions of a conventional
key. Unlock the vehicle using KEYLESS-GO, for
instance, and lock it using the &button on
the key.
The driver's door and the door on which the
handle is used must both be closed. The key must be outside the vehicle. When locking or
unlocking with KEYLESS-GO, the distance
between the key and the corresponding door
handle must not be greater than one metre.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in or in the
direct vicinity of the vehicle. This occurs, for
example:
R while starting the engine
R while driving
R when the external door handles are touched
R during convenience closing X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface ;for an extended
period.
Further information on the convenience clos-
ing feature (Y page 99). X
To unlock the tailgate: pull tailgate han-
dle :. 80
KeyOpening and closing

Problem
Possible causes/consequences and
M
MSolutions There is a fault with KEYLESS-GO.
X Lock or unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle cannot be locked or unlocked even using the remote
control function: X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. The engine cannot be
started using the key. The on-board voltage is too low
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 324).
or
X Jump-start the vehicle (Y page 325).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is weak or discharged.
X Check the key battery (Y page 82) and replace if necessary
(Y page 82).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Key
85Opening and closing Z

:
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position (fore-
and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired posi-
tion.
X Push release lever :up as far as it will go.
The steering column is locked.
X Check that the steering column is locked.
When doing so, try to push the steering wheel
up or down or try to move it in the fore-and-aft
direction. Mirrors
Rear-view mirror
X
Anti-dazzle mode: pivot anti-dazzle
switch :forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
The exterior mirrors reduce the size of the
image. Objects visible in the mirrors are
closer than they appear. You could misjudge
the distance from road users driving behind
you when changing lanes, for instance. There is a risk of an accident.
You should therefore always look over your
shoulder to determine the actual distance
from road users driving behind you. X
Turn the key to position 1or2 in the igni-
tion lock (Y page 144).
X Exterior mirror on the front-passenger side:
press button ;.
Exterior mirror on the driver's side: press but-
ton :.
The indicator lamp in the corresponding but-
ton lights up in red.
The indicator lamp goes out again after some
time. You can adjust the selected exterior 112
MirrorsSeats
, steering wheel and mirrors

G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes Vehicles with a petrol engine:
the engine runs
at a higher engine speed during the cold start
procedure so that the catalytic converter can
reach operating temperature more quickly. The
sound of the engine may change as a result.
Manual transmission You can only start the engine when the clutch
pedal is fully depressed.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully.
X Engage neutral i.
Automatic transmission X
Shift the transmission to position j
(Y page 155).
The transmission position indicator in the
multifunction display shows P(Y page 155).
i You can start the engine in transmission
position jand i. Starting procedure using the key To start the engine using the key instead of the
Start/Stop button, pull the Start/Stop button
out of the ignition lock.
X To start a diesel engine: turn the key to
position 2in the ignition lock (Y page 144).
The % preglow indicator lamp in the instru-
ment cluster lights up.
X Turn the key to position 3in the ignition lock
(Y page 144) and release it as soon as the
engine is running.
Starting procedure using the Start/
Stop button The Start/Stop button can be used to start the
vehicle manually without inserting the key in the
ignition lock. The key must be in the vehicle and the Start/Stop button must be inserted in the
ignition lock. This mode for starting the engine
manually operates independently of the ECO
start/stop automatic engine start function.
You can start the engine if a valid key is in the
vehicle. Switch off the engine and always take
the key with you when leaving the vehicle, even
if you leave it for only a short time. Observe the important safety notes.
X Vehicles with automatic transmission:
depress the brake pedal and keep it
depressed.
X Vehicles with manual transmission:
depress the clutch pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 144).
Vehicles with a petrol engine: the engine
starts.
Vehicles with a diesel engine: preglow is
activated and the engine starts. Pulling away
General notes G
WARNING
Vehicles with automatic transmission:
If the engine speed is above the engine idling speed and you then engage transmission 146
DrivingDriving and parking