battery MERCEDES-BENZ GLA SUV 2017 Owner's Manual

Hill start assist is not active if:
R you are pulling away on a level road or a
downhill gradient
R the transmission is in position ion vehicles
with automatic transmission
R the electric parking brake is applied
R ESP ®
is malfunctioning
Further information on holding the vehicle sta-
tionary on uphill gradients (Y page 158).ECO start/stop function
Introduction The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
When the vehicle pulls away again, the engine
starts automatically. The ECO start/stop func-
tion thereby helps you to reduce the fuel con-
sumption 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 :
ECO start/stop display
The ECO start/stop function is switched on
whenever you start the engine using the key or
the Start/Stop button.
If the è ECO symbol is shown on the multi-
function display, the ECO start/stop function switches the engine off automatically if the vehi-
cle stops moving.
If the ECO start/stop function has been man-
ually switched off (Y page 149)or a malfunction
has caused the system to be switched off, the
è orç ECO symbol is not displayed.
Mercedes-AMG vehicles: the ECO start/stop
function is available only in drive program C.
Automatic engine switch-off General notes
The ECO start/stop function is operational and
the è ECO symbol is displayed on the mul-
tifunction display if:
R the indicator lamp in the ECO button is lit
green
R the off-road program is deactivated (vehicles
with automatic transmission)
R the outside temperature is within the range
that is suitable for the system
R the engine is at normal operating temperature
R the set temperature for the vehicle interior
has been reached
R the battery is sufficiently charged
R the system does not detect moisture on the
windscreen when the air-conditioning system
is switched on
R the bonnet is closed
R the driver's door is closed and the driver's
seat belt is fastened
If all conditions for automatic engine switch-off
are not fulfilled, the çECO symbol is shown.
All the vehicle's systems remain active when the engine is switched off automatically.
The engine can be switched off automatically a
maximum of four times (initial stop, then three
subsequent stops) in succession. The çECO
symbol is shown on the multifunction display
after the engine has been started automatically
for the fourth time. When the èECO symbol
is shown on the multifunction display, automatic engine switch-off is possible again. 148
DrivingDriving and parking

Vehicles with manual transmission
The ECO start/stop function switches off the
engine automatically at low speeds.
X Brake the vehicle.
X Shift to neutral i(Ypage 153) (follow gear-
shift instruction :to shift to neutral i, as
necessary).
X Release the clutch pedal.
The engine is switched off automatically.
Vehicles with automatic transmission
If the vehicle is braked to a standstill with the
transmission in hori, the ECO start/stop
function switches off the engine automatically.
The HOLD function can 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.
Automatic engine start General notes
The engine is started automatically if:
R you switch off the ECO start/stop function by
pressing the ECO button
R you engage reverse gear k
R you unfasten your seat belt or open the driv-
er'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-
screen when the air-conditioning system is
switched on
R the battery's charge status is too low Vehicles with manual transmission
! Only engage gear when the clutch pedal is
depressed.
The engine is started automatically if you:
R depress the clutch pedal fully
R depress the accelerator pedal
Vehicles with automatic transmission The engine is started automatically if you:
R release the brake pedal in transmission posi-
tion hori when the HOLD function is not
active
R depress the accelerator pedal
R activate the off-road program
R move the transmission out of position j
Shifting the transmission to position jdoes
not start the engine.
If you shift the transmission from ktoh, the
ECO start/stop function is available as soon as
the è ECO symbol appears on the multifunc-
tion display.
Switching the ECO start/stop function
off/on X
To deactivate: press ECO button :.
Indicator lamp ;and the èorç ECO
symbol on the multifunction display go out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If all conditions for the automatic engine
switch-off (Y page 148)are fulfilled, the è
ECO symbol is shown in the multifunction dis- play.
If all conditions for the automatic engine
switch-off (Y page 148) are not fulfilled, the
ç ECO symbol is shown in the multifunc- Driving
149Driving and parking Z

tion display. If this is the case, the ECO start/
stop function is not available.
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. The engine will then
not be switched off automatically when the vehi- cle stops. AMG performance exhaust system
(Mercedes-AMG vehicles)
You can choose between different AMG Per-
formance exhaust system volumes using the
position of the exhaust flap.
If the ignition is switched off for less than four
hours, the previously selected setting is activa-
ted when the engine is next started. If the igni-
tion is switched off for more than four hours, the quietest setting is activated when the engine is
next started. Setting the volume:
X Press button :.
If you select the loudest setting, indicator
lamp ;lights up. Problems with the engine
Problem
Possible causes/consequences and
M MSolutions The engine does not
start. The HOLD function or Distance Pilot DISTRONIC is activated.
X Deactivate the HOLD function (Y page 187) or Distance Pilot
DISTRONIC (Y page 184).
X Try to start the engine again. The engine does not
start. The starter motor
can be heard. R
The engine electronics are malfunctioning
R The fuel supply is malfunctioning
Before attempting to restart the engine:
X Turn the key back to position gin the ignition lock.
or X Press the Start/Stop button repeatedly until all indicator lamps on
the instrument cluster go out.
X Try to start the engine again. Avoid excessively long and frequent
attempts to start the engine, as this will drain the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display shows 0. The fuel tank is empty.
X Refuel the vehicle. 150
DrivingDriving an
d parking

Problem
Possible causes/consequences and
M
MSolutions The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 325).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to excessively high thermal load.
X Allow the starter motor to cool down for approximately two minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. Vehicles with a petrol
engine:
The engine is not running
smoothly and is misfir-
ing. The engine electronics or a mechanical component of the engine
management system is malfunctioning.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
X Have the cause rectified immediately at a qualified specialist work-
shop. The coolant temperature
display is showing more
than 120 †. The coolant warning lamp may also
be on and a warning tone
may sound. The coolant level is too low. The coolant is too hot and the engine is not
being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 305). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty. The
coolant is too hot and the engine is not being cooled sufficiently.
X If the coolant temperature is below 120 †, you can continue driving
to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-start traffic. DYNAMIC SELECT button (all vehicles
except Mercedes-AMG vehicles)
Use the DYNAMIC SELECT button to change the drive program. Depending on the drive program
selected, the following vehicle characteristics
will change:
R the drive (engine and transmission manage-
ment)
R the suspension (vehicles with adjustable
damping)
R the steering R
the availability of the ECO start/stop function
R the climate control
If the ignition is switched off for less than four
hours, the previously selected drive program is
activated when the engine is next started. If the ignition is switched off for more than four hours,
drive program Cis activated when the engine is
next started. DYNAMIC SELECT button (all vehicles except Mercedes-AMG vehicles)
151Driving and parking Z

Problem
Possible causes/consequences and
M
MSolutions The key battery is weak or discharged.
X Unlock the vehicle using the emergency key element (Y page 88).The fuel filler flap is unlocked, but the opening mechanism is jammed.
X Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rial can come into contact with hot vehicle
components. In particular, do not park on dry grassland or harvested grain fields. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position Por shift manual transmission into
neutral
R start the engine
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is safeguarded
against rolling away unintentionally:
R the electric parking brake must be applied
R on vehicles with manual transmission, engage
first gear or reverse gear R
on vehicles with automatic transmission, the
transmission must be in position jand the
transmission position display must show j
in the multifunction display
R the key must be removed from the ignition
lock
R on uphill or downhill gradients, the front
wheels must be turned towards the kerb Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Manual transmission X
Shift to either first gear or reverse gear k.
X With the key: turn the key to position gin
the ignition lock and remove it.
The immobiliser is activated.
X With the Start/Stop button: press the
Start/Stop button (Y page 144).
The engine stops and all the indicator lamps
on the instrument cluster go out.
If the driver's door is closed, this is the same
as key position 1. If the driver's door is open,
this is the same as key position g, i.e. the
key having been removed.
X Apply the electric parking brake. 166
ParkingDriving and parking

If your seat belt is not fastened, the following
conditions must be fulfilled for the electric park- ing brake to be released automatically:
R the driver's door is closed
R you are shifting from transmission position
j or have previously driven at speeds
greater than 3 km/h
Ensure that you do not depress the accelerator
pedal unintentionally. Otherwise, the parking
brake will be released and the vehicle will start
to move.
Emergency braking The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X While the vehicle is in motion, push handle :
of the electric parking brake (Y page 168).
The vehicle is braked as long as you keep
handle :of the electric parking brake
pressed. The longer the electric parking brake
handle :is depressed, the greater the brak-
ing force.
During braking:
R a warning tone sounds
R the Release parking brake
Release parking brake message
appears
R the red !indicator lamp in the instrument
cluster flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. Parking up the vehicle
If you leave the vehicle parked up for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked up for longer than
six weeks, it may suffer from lack of use.
X Contact a qualified specialist workshop and
seek advice.
i You can obtain information on trickle charg-
ers from a qualified specialist workshop. Driving tips
General notes
Important safety notes G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving.
Drive sensibly – save fuel Observe the following tips to save fuel:
R The tyres should always be inflated to the rec-
ommended tyre pressure.
R Remove unnecessary loads.
R Remove roof racks when they are not needed.
R Warm up the engine at low engine speeds.
R Avoid frequent acceleration or braking.
R Have all maintenance work carried out as
indicated by the service intervals in the Ser-
vice Booklet or by the service interval display.
Fuel consumption also increases when driving in cold weather, in stop-start traffic, on short jour-
neys and in hilly terrain. ECO display
The ECO display shows you how economical
your driving style is. The ECO display assists you in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Consumption can be significantly influ-
enced by your driving style. :
Acceleration
; Coasting Driving tips
169Driving and parking Z

Tips for driving with Distance Pilot
DISTRONIC General notes
Pay particular attention in the following traffic
situations:
R Cornering, entering and exiting a bend: the
ability of Distance Pilot DISTRONIC to detect
vehicles when cornering is limited. Your vehi-
cle may brake unexpectedly or late.
R Driving on a different line: Distance Pilot
DISTRONIC may not detect vehicles driving in
a different lane. The distance to the vehicle in front will be too short.
R Other vehicles changing lane: Distance Pilot
DISTRONIC has not detected the vehicle cut-
ting in yet. The distance to this vehicle will be
too short.
R Narrow vehicles: Distance Pilot DISTRONIC
does not detect the vehicle in front on the
edge of the carriageway because of its narrow
width. The distance to the vehicle in front will
be too short.
R Obstacles and stationary vehicles: Distance
Pilot DISTRONIC does not brake for obstacles
or stationary vehicles. If, for example, the
detected vehicle turns a corner and an obsta-
cle or stationary vehicle is revealed, Distance Pilot DISTRONIC will not brake for them.
R Distance Pilot DISTRONIC may mistakenly
detect vehicles that are crossing your lane. If
you activate Distance Pilot DISTRONIC under the following conditions, the vehicle could
pull away unintentionally:
- at traffic lights with crossing traffic, for
example
- if there is a vehicle in front after a crossing
with the HOLD function activated
In such situations, brake if necessary. Distance Pilot DISTRONIC is then switched off. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when manoeuvring on steep slopes
R when waiting in traffic The vehicle is kept stationary without the driver
having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply
R the HOLD function is deactivated by the
accelerator pedal being depressed, e.g. by
a vehicle occupant
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with
R the battery is disconnected
There is a risk of an accident.
Before leaving the vehicle, always deactivate
the HOLD function and secure the vehicle
from rolling away.
! When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoid damage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
R when towing away
R in a car wash
Deactivating the HOLD function (Y page 187).
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or if your seat belt
is fastened
R the electric parking brake is released
R Distance Pilot DISTRONIC is deactivated
R the transmission is in position h,kori
on vehicles with automatic transmission 186
Driving systemsDriving an
d parking

Parking Pilot does not assist you parking in
spaces parallel or at right angles to the direction of travel if:
R the parking space is on a kerb
R the system reads the parking space as being
blocked, such as by foliage or grass paving
blocks
R the area is too small for the vehicle to
manoeuvre into
R the parking space is bordered by an obstacle,
e.g. a tree, a post or a trailer
Further information on the detection range
(Y page 193). G
WARNING
If there are objects above the detection range:
R Parking Pilot may steer in too early
R the vehicle may not stop in front of these
objects
This could cause a collision. There is a risk of
an accident.
If objects are located above the detection
range, stop and deactivate Parking Pilot. :
Detected parking space on the left
; Parking symbol
= Detected parking space on the right
Parking Pilot is activated automatically when
driving forwards. The system is operational at
speeds of up to approximately 35 km/h. While
in operation, the system independently locates
and measures parking spaces on both sides of
the vehicle.
Parking Pilot will detect only parking spaces
which are:
R parallel or at right angles to the direction of
travel
R parallel to the direction of travel and are at
least 1.5 m wide R
parallel to the direction of travel and at least
1.0 m longer than your vehicle
R at right angles to the direction of travel and at
least 1.0 m wider than your vehicle
i Note that Parking Pilot cannot measure the
length of a parking space if it is at right angles to the direction of travel. You will need to
judge whether your vehicle will fit in the park-
ing space.
When driving at speeds below 30 km/h, you will
see parking symbol ;as a status indicator on
the instrument cluster. When a parking space
has been detected, an arrow towards the right or the left also appears. Parking Pilot displays only
parking spaces on the front-passenger side as
standard. Parking spaces on the driver's side
are displayed as soon as the turn signal on the
driver's side is activated. When parking on the
driver's side, this must remain activated until
you confirm the use of Parking Pilot by pressing the a button on the multifunction steering
wheel. The system automatically determines
whether the parking space is parallel or at right
angles to the direction of travel.
A parking space is displayed while you are driv- ing past it, and until you are approximately 15 m
away from it.
Parking G
WARNING
If you leave the vehicle when it is only being
braked by Parking Pilot, it could roll away if:
R there is a malfunction in the system or in
the voltage supply.
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with.
R the battery is disconnected
R the vehicle is accelerated, e.g. by a vehicle
occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
i Vehicles with automatic transmission:
If Parking Assist PARKTRONIC detects obsta- cles, Parking Pilot brakes automatically whilst Driving systems
197Driving and parking Z

You cannot charge a trailer battery using the
power supply.
When it leaves the factory, your vehicle's trailer
socket is equipped with a permanent power
supply and a power supply that is switched on
via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin 10.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
You can find more information about fitting the
trailer electrics at a qualified specialist work-
shop.
X To switch the connected power supply on
or off: turn the key to position 2or 0respec-
tively (Y page 144). Failure check for LEDs
If LED lamps are fitted in the trailer, a malfunc-
tion message may appear in the multifunction
display even if there is no fault. The reason for
the error message may be that the current has
fallen below the minimum of 50 mA.
To ensure reliable operation of the failure indi-
cator, each LED chain in the trailer lighting must
be guaranteed a minimum current of 50 mA. Trailer with 7-pin connector
General notes Trailer with 7-pin connector:
you can connect
to the 13-pin socket on the ball coupling using
an adapter or, if necessary, an adapter cable.
Both can be obtained at a qualified specialist
workshop.
Fitting the adapter !
Make sure that there is sufficient cable play
so that the cable cannot become detached
when cornering.
! Remove the installed adapter cable before
folding in the ball coupling. Otherwise, dam-
age may occur to the rear bumper and the
adapter cable. X
Open the socket cover.
X Insert the plug connector with lug :into
groove =on the socket.
X Turn bayonet connection ;clockwise to the
stop.
X Let the cover engage.
X If you are using an adapter cable, secure the
cable to the trailer with cable ties. 216
Towing a trailerDriving and parking

Trip menu
Standard display X
Press and hold the %button on the steer-
ing wheel until the Trip
Tripmenu with trip
meter :and total distance recorder ;
appears.
Trip computer "From start" or "From
reset" :
Distance
; Driving time
= Average speed
? Average fuel consumption
X Press the =or; button on the steering
wheel to select the Trip
Trip menu.
X Press the 9or: button to select
From start From start orFrom reset
From reset.
The values in the From
From start
start submenu are cal-
culated from the start of a journey whilst the
values in the From reset
From reset submenu are calcu-
lated from the last time the submenu was reset
(Y page 222).
In the following cases, the trip computer is auto-
matically reset From start
From start:
R the ignition has been switched off for more
than four hours
R 999 hours have been exceeded.
R 9,999 kilometres have been exceeded.
When 9,999 hours or 99,999 kilometres have
been exceeded, the trip computer is automati-
cally reset From reset
From reset. ECO display The ECO display is not available in Mercedes-
AMG vehicles.
X Press the =or; button on the steering
wheel to select the Trip Tripmenu.
X Press the 9or: button to select ECO
ECO
DISPLAY
DISPLAY.
If the ignition remains switched off for longer
than four hours, the ECO display will be auto-
matically reset.
Further information on the ECO display
(Y page 169).
Displaying the range and current fuel
consumption Mercedes-AMG vehicles: the menu only dis-
plays range :.
X Press the =or; button on the steering
wheel to select the Trip Tripmenu.
X Press 9or: to select the display with
approximate range :and current fuel con-
sumption ;.
Approximate range :that can be covered is
calculated according to your current driving
style and the amount of fuel in the tank. If
there is only a small amount of fuel left in the
fuel tank, a vehicle being refuelled C
appears instead of approximate range :.
Recuperation display =shows you if energy
has been recuperated from the kinetic energy in overrun mode and saved in the battery.
Recuperation display =depends on the
engine installed and is therefore not available in all vehicles. Menus and submenus
221On-board computer and displays Z