battery MERCEDES-BENZ GL 2016 Owner's Manual

Problems with the engine Problem
Possible causes/consequences and P Solutions
The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics. R
There is a malfunction in the fuel supply.
Before attempting to start the engine again: X
Turn the key back to position 0 in the ignition lock.
or X
Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out. X
Try to start the engine again ( Y
page 167). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts: X
Consult a qualified specialist workshop.
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 395).
If the engine does not start despite attempts to jump-start it: X
Consult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high. 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.172
Driving
Driving and parking

Problems with fuel and the fuel tank Problem
Possible causes/consequences and P Solutions
Fuel is leaking from the
vehicle.
G WARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire. X
Apply the electric parking brake. X
Switch off the engine. X
Remove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS ‑ GO:X
Open the driver's door.
The on-board electronics now have status 0 . This is the same as
the SmartKey having been removed. X
Do not restart the engine under any circumstances. X
Consult a qualified specialist workshop.
The engine does not
start. The fuel tank of a vehicle with a diesel engine has been run com-
pletely dry. X
Refuel the vehicle with at least 5.3 US qt (5 liters) of diesel. X
Turn the ignition on for approximately ten seconds
( Y
page 165). X
Start the engine continuously for up to ten seconds until it runs
smoothly.
If the engine does not start: X
Turn the ignition on again for approximately ten seconds
( Y
page 165). X
Start the engine again continuously for up to ten seconds until it
runs smoothly.
If the engine does not start after three attempts: X
Consult a qualified specialist workshop.
The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked. X
Unlock the vehicle ( Y
page 82).
The SmartKey battery is discharged or nearly discharged. X
Unlock the vehicle using the mechanical key ( Y
page 84).
The fuel filler flap is unlocked, but the opening mechanism is jam-
med. X
Consult a qualified specialist workshop. Refueling 185
Driving and parking Z

If the transmission is in position R , the trunk
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake: R
the driver's door is closed. R
you have shifted out of transmission posi-
tion P or you have previously driven faster
than 2 mph (3 km/h).
i Ensure that you do not depress the accel-
erator pedal unintentionally. Otherwise the
parking brake will be released and the vehi-
cle will start to move.
Emergency braking
The vehicle can also be braked during an
emergency by using the electric parking
brake. X
While driving, push handle C of the electric
parking brake.
The vehicle is braked for as long as the
handle of the electric parking brake is
pressed. The longer the electric parking
brake handle is depressed, the greater the
braking force.
During braking: R
a warning tone sounds R
the Release Park. Brake message
appears R
the red I (USA only) or $ (Canada
only) indicator lamp in the instrument clus-
ter flashes When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as a
result of lack of use. X
Visit a qualified specialist workshop and
seek advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop.
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.
G WARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the coun-
try in which you are driving. Some jurisdic-
tions prohibit the driver from using a mobile
phone while driving a vehicle.192
Driving tips
Driving and parking

However, the vehicle is only accelerated up to
the speed you have stored.
If you depress the brake, DISTRONIC PLUS is
deactivated unless your vehicle is stationary.
Changing lanes
If you change to the passing lane, DISTRONIC
PLUS supports you when: R
you are driving faster than 40 mph
(60 km/h) R
DISTRONIC PLUS is maintaining the dis-
tance to a vehicle in front R
you switch on the appropriate turn signal R
DISTRONIC PLUS does not detect a danger
of collision
If these conditions are fulfilled, your vehicle is
accelerated. Acceleration will be interrupted
if changing lanes takes too long or if the dis-
tance between your vehicle and the vehicle in
front becomes too small.
i When you change lanes, DISTRONIC
PLUS monitors the left lane on left-hand-
drive vehicles or the right lane on right-
hand-drive vehicles.
Stopping
G WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if: R
there is a malfunction in the system or in
the voltage supply. R
DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle. R
the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with. R
the battery is disconnected. R
the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away. If DISTRONIC PLUS detects that the vehicle in
front is stopping, it brakes your vehicle until it
is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
After a time, the electric parking brake
secures the vehicle and relieves the service
brake.
Depending on the specified minimum dis-
tance, your vehicle will come to a standstill at
a sufficient distance behind the vehicle in
front. The specified minimum distance is set
using the control on the cruise control lever.
The electric parking brake automatically
secures the vehicle if DISTRONIC PLUS is
activated and: R
the driver's door is open and the driver's
seat belt is unfastened. R
the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function. R
a system malfunction occurs. R
the power supply is not sufficient.
On stee p uphill or downhill inclines or if there
is a malfunction, the transmission may also
automatically be shifted into position P .
Setting a speed
Keep in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the speed set. Driving systems 209
Driving and parking Z

You can select from the following: R
Off-road level 1 at speeds up to 60 mph
(100 km/h) R
Off-road level 2 at speeds up to 40 mph
(65 km/h) R
Off-road level 3 at speeds up to 12 mph
(20 km/h)
If you are driving above 50 mph (80 km/h) or
drive between 40 mph (65 km/h) and 50 mph
(80 km/h) for longer than 20 seconds, off-
road level 2 will be canceled. The vehicle is
lowered to off-road level 1.
You will see a message in the multifunction
display, for example: Lowering
.
If you are driving above 70 mph (115 km/h) or
drive between 62 mph (100 km/h) and
70 mph (115 km/h) for longer than
20 seconds, off-road level 1 will be canceled.
Depending on the vehicle's speed and the
ADS mode selected ( Y
page 218), the vehicle
is automatically lowered to highway or high-
speed level.
You will see a message in the multifunction
display, for example: Lowering
.
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 maneuvering 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 canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
i Do not use the HOLD function when driv-
ing off-road, on steep uphill or downhill gra-
dients or on slippery or loose surfaces. The HOLD function cannot hold the vehicle on
such surfaces.
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 has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant. R
the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with. R
the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
the HOLD function and secure the vehicle
against rolling away.
! If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automati-
cally in certain situations.
To prevent damage to the vehicle, deacti-
vate DISTRONIC PLUS and the HOLD func-
tion in the following or other similar situa-
tions: R
when towing the vehicle R
in the car wash
Deactivate the HOLD function ( Y
page 218).
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 your seat belt
is fastened R
the electric parking brake is released R
the transmission is in position D , R or NR
DISTRONIC PLUS is deactivated Driving systems 217
Driving and parking Z

X
Detach the trailer cable and decouple the
trailer. X
Switch off the engine.
Permissible trailer loads and drawbar
loads
Weight specifications Maximum permissible gross vehicle
weight rating
The gross trailer weight is calculated by add-
ing the weight of the trailer to the weight of
the load and equipment on the trailer.
You will find installing dimensions and loads
under "Technical data" ( Y
page 457).
Permissible noseweight
You will find installing dimensions and loads
under "Technical data" ( Y
page 457).
Loading a trailer R
When loading the trailer, make sure that
neither the permissible gross weight of the
trailer nor the gross vehicle weight is
exceeded. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
You can find the maximum permissible val-
ues on the type plates of your vehicle and
the trailer. When calculating how much
weight the vehicle and trailer may carry,
pay attention to the respective lowest val-
ues. R
The trailer drawbar load on the ball coupling
must be added to the rear axle load to avoid
exceeding the permissible gross axle
weight. The permissible gross vehicle
weight is indicated on the identification
plate on the B-pillar on the driver's side of
the vehicle.
i Mercedes-Benz recommends a trailer
load where the trailer drawbar noseweight accounts for 8% to 15% of the trailer's per-
missible gross weight.
i The weight of additional accessories, pas-
sengers, and cargo reduces the permissi-
ble trailer load and drawbar load for your
vehicle.
Checking the vehicle and trailer weight R
To check that the weights of the towing
vehicle and the trailer comply with the max-
imum permissible values, have the vehicle/
trailer combination (including the driver,
passengers, and cargo with a fully laden
trailer) weighed on a calibrated weigh-
bridge. R
Check the gross axle weight rating of the
front and rear axles, the gross weight of the
trailer and trailer drawbar load.
Removing the ball coupling X
Remove the spring cotter. X
Remove the bolt from the ball coupling
recess. X
Remove the ball coupling from the ball cou-
pling recess. X
Clean the ball coupling if it is dirty. X
Stow the ball coupling so that it cannot be
thrown around.
Observe the loading guidelines ( Y
page 340)
and the safety notes regarding stowage
spaces ( Y
page 341).
Information on cleaning and care of the trailer
tow hitch ( Y
page 381).
Trailer power supply
! You can connect accessories with a max-
imum power consumption of 240 W to the
permanent power supply.
You must not charge a trailer battery using
the power supply.
The trailer socket of your vehicle is equipped
at the factory with a permanent power supply. Towing a trailer 269
Driving an d parking Z

Display messages
Possible causes/consequences and P Solutions
The yello w $ warnin g lamp lights up. If you manually apply or
release th e electric parkin g brake, th e red I (US A only) or $
(Canada only) indicato r lamp flashes .
The electric parkin g brak e is malfunctioning. It is no t possibl e to
apply th e electric parkin g brak e manually.X
Shift th e transmissio n to position P .X
Visit a qualified specialist workshop .
I (USA
only)
$ (Canada
only)
Parkin g Brake Inop‐
erativ e The yello w $ warnin g lamp lights up. The red I (US A only)
or $ (Canada only) indicato r lamp flashes fo r about te n sec -
onds after th e electric parkin g brak e has been applied or released.
It then goe s out or remain s lit .
The electric parkin g brak e is malfunctioning, e.g. because of over-
voltag e or undervoltage. X
Remove th e caus e fo r th e overvoltage or undervoltage, e.g. by
chargin g th e battery or restarting th e engine.X
Engage or release th e electric parkin g brake.
If it remain s impossible to apply or release th e electric parkin g
brake: X
Switc h of f th e ignition and tur n it bac k on .X
Engage or release th e electric parkin g brake.
If th e electric parkin g brak e still canno t be released:X
Consult a qualified specialist workshop .
If th e electric parkin g brak e still canno t be applied:X
Visit a qualified specialist workshop .
The yello w $ warnin g lamp lights up and th e red I (US A
only) or $ (Canada only) indicato r lamp flashes .
It is no t possibl e to apply th e electric parkin g brak e manually.X
Shift th e transmissio n to position P .X
Visit a qualified specialist workshop .296
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
= Sto p Vehicl e See
Operator' s Manual The battery is no longer bein g charged and th e battery charg e level
is to o low.
A warnin g tone also sounds. X
Pull ove r and stop th e vehicl e safely and switch of f th e engine,
payin g attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 189).X
Observ e th e instruction s in th e = See Operator' s Manual
display message .X
Consult a qualified specialist workshop .

Display messages
Possible causes/consequences and P Solutions
Ris k of vehicl e
rollin g Transmis‐
sio n not in P The driver's doo r is open/not completely closed and th e trans -
missio n is in position R , N or D .
A warnin g tone also sounds.
G WARNIN G
The vehicl e may rol l away.
There is a ris k of an accident. X
Shift th e transmissio n to position P .X
Secur e th e vehicl e against rollin g away ( Y
page 189).X
Clos e th e driver's doo r completely.
Onl y select Par k
(P) whe n vehicl e
is stationar y The vehicl e is moving. X
Stop th e vehicl e safely as soo n as possible, payin g attention to
roa d and traffic conditions. X
Shift th e transmissio n to position P .
Withou t changing
gear, consul t work‐
sho p You canno t chang e th e transmissio n position due to a malfunction .
A warnin g tone also sounds.
If transmissio n position D is selected:X
Drive to a qualified specialist workshop without shiftin g th e
transmissio n from position D .
If transmissio n position R , N or P is selected:X
Secur e th e vehicl e against rollin g away ( Y
page 189).X
Notify a qualified specialist workshop or breakdown service.
Auxiliary batter y
malfunction The auxiliar y battery fo r th e automati c transmissio n is no longer
bein g charged. X
Visit a qualified specialist workshop at th e next opportunity.X
Unti l then , set th e automati c transmissio n to position P before
you switch of f th e engine.X
Before leavin g th e vehicle, apply th e electric parkin g brake.X
Secur e th e vehicl e against rollin g away ( Y
page 189).
e The tailgat e is open .
G WARNIN G
Whe n th e engin e is running , exhaus t gase s can ente r th e vehicl e
interio r if th e tailgat e is open .
There is a ris k of poisoning. X
Clos e th e tailgate. Display messages 32 1
On-board computer and displays Z

X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 165).X
To open: slide cover C to its foremost
position. X
Press in cigarette lighter D .
Cigarette lighter D will pop out automati-
cally when the heating element is red-hot. X
To close: pull cover C back as far as it will
go.
12 V sockets
General notes X
Turn the SmartKey to position 1 in the igni-
tion lock ( Y
page 165).
With the exception of the socket in the front
center console, all sockets can be used for
accessories with a maximum current draw of
240 W (20 A). The socket in the front center
console can be used for accessories with a
maximum current draw of 180 W (15 A).
Accessories include such items as chargers
for mobile phones.
If you use the sockets for long periods when
the engine is switched off, the battery may
discharge.
i An emergency cut-out ensures that the
on-board voltage does not drop too low. If
the on-board voltage is too low, the power
to the sockets is automatically cut. This
ensures that there is sufficient power to
start the engine.
Socket in the front-compartment center
console
! The socket is not suitable for operating
the tire inflation compressor. X
To open: slide cover C to its foremost
position. X
Lift up the cover of socket D .X
To close: pull cover C back as far as it will
go.
Socket in the rear-compartment center
console
Vehicles with the Rear Seat Entertainment
System have two sockets in the center con-
sole in the rear compartment. X
Lift up the cover of socket C .Features 353
Stowage and features Z