2014 MERCEDES-BENZ GL towing

Trailer power supply
!You can connect accessories with a
maximum power consumption of 240Wto
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.
The permanent power supply is supplied via
trailer socket pin 4.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
A qualified specialist workshop can provide
more information about installing the trailer
electrics.
270Towing a trailer
Driving an d parking

Display messagesPossible causes/consequences andPPSolutions
Blind Spot AssistBlind Spot Assist
CurrentlyCurrently
Unavailable SeeUnavailable See
Operator's ManualOperator's Manual
orActive BlindActive Blind
Spot AssistSpot Assist
CurrentlyCurrently
Unavailable SeeUnavailable See
Operator's ManualOperator's Manual
Blind Spot Assist or Active Blind Spot Assist is temporarily
inoperative. Possible causes are:
Rthe sensors are dirty.
Rfunction is impaired due to heavy rain or snow.
Rthe radar sensor system is outside the operating temperature
range.
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellowcindicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 188).
XClean the sensors (Ypage 380).
XRestart the engine.
Blind Spot Assist or Active Blind Spot Assist is deactivated while
towing a trailer.
You have established the electrical connection between the trailer
and your vehicle.
XPressvon the steering wheel to confirm the display
message.
Blind Spot AssistBlind Spot Assist
InoperativeInoperativeor
Active Blind SpotActive Blind Spot
Assist InoperativeAssist Inoperative
Blind Spot Assist or Active Blind Spot Assist is defective.
The yellowcindicator lamps also light up in the exterior
mirrors.
XVisit a qualified specialist workshop.
Park AssistPark Assist
CanceledCanceled
The driver's door is open and the driver's seat belt has not been
fastened.
XRepeat the parking process with the seat belt fastened and the
driver's door closed.
You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
XWhile steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally.
314Displaymessages
On-b oard computer and displays

Stowage space
Important safety notes
GWARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants.
There is a risk of injury, particularly in the
event of sudden braking or a sudden change
in direction.
RAlways stow objects so that they cannot be
thrown around in such situations.
RAlways make sure that objects do not
protrude from stowage spaces, parcel nets
or stowage nets.
RClose the lockable stowage spaces while
driving.
RStow and secure objects that are heavy,
hard, pointy, sharp-edged, fragile or too
large in the cargo compartment.
Observe the loading guidelines (Ypage 340).
Glove box
XTo open:pull handleCand open glove box
flapD.
XTo close:fold glove box flapDupwards
until it engages.
iThe glove box can be cooled and
ventilated (Ypage 163).
GGlove box unlocked
HGlove box locked
The glove box can be locked and unlocked
using the mechanical key.
PartitionCfor stowing flat objects is located
in the upper section of the glove box. It can
be removed to increase the stowage space in
the glove box.
XTo remove:pull partitionCforwards and
out
XTo install:insert partitionCand push it
back until it engages.
Stowage areas341
Stowage and features
Z

Roadside Assistance button
XPress Roadside Assistance buttonC.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in Roadside Assistance
buttonCflashes while the call is active.
The multifunction display shows the
Connecting CallConnecting Callmessage. The audio
output is muted.
If a connection can be made, theCallCall
ConnectedConnectedmessage appears in the
multifunction display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
RCurrent location of the vehicle
RVehicle identification number
iThe audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
A voice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
From the vehicle remote malfunction
diagnosis, the Mercedes-Benz Customer
Assistance Center can ascertain the nature of
the problem (Ypage 362).
The Mercedes-Benz Customer Assistance
Center either sends a qualified Mercedes-
Benz technician or makes arrangements for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center.
You may be charged for services such as
repair work and/or towing.
Further details are available in your mbrace
manual.
iThe system has not been able to initiate
a roadside assistance call, if:
Rthe indicator lamp for Roadside
Assistance call buttonCis flashing
continuously.
Rno voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone
network is not available, for example.
TheCall FailedCall Failedmessage appears in the
multifunction display.
XTo end a call:press thevbutton on the
multifunction steering wheel.
or
XPress the corresponding button for ending
a phone call on the audio system or on
COMAND.
MB Info call button
XPress MB Info call buttonC.
This initiates a call to the Mercedes-Benz
Customer Assistance Center.
The indicator lamp in MB Info call
buttonCflashes while the connection is
being made. The multifunction display
358Features
Stowage and features

Ruse in mountainous terrain or on poor road
surfaces
Rif the engine is often left idling for long
periods
Under these or similar conditions, have, for
example, the air filter, engine oil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must
be checked more often. Further information
can be obtained at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz
Center.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. You can
obtain further information from any
authorized Mercedes-Benz Center.
Care
General notes
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible
manner.
!For cleaning your vehicle, do not use any
of the following:
Rdry, rough or hard cloths
Rabrasive cleaning agents
Rsolvents
Rcleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
!Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after
cleaning. Braking heats the brake discs and
the brake pads/linings, thus drying them.
The vehicle can then be parked.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz.
Washing the vehicle and cleaning the
paintwork
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash
!Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
!Make sure that:
Rthe side windows and the sliding sunroof
are fully closed.
Rthe ventilation/heating is switched off
(the OFF button has been pressed).
Rthe windshield wiper switch is in position
0.
Otherwise, the vehicle might be damaged.
!In car washes with a towing mechanism,
make sure that the automatic transmission
376Care
Maintenance and care

Useful information............................386
Where will I find...?...........................386
Flat tire..............................................387
Battery (vehicle)................................391
Jump-starting....................................395
Towing and tow-starting..................397
Fuses..................................................400
385
Breakdown assistance

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 28).
Where will I find...?
Vehicle tool kit
General notes
The vehicle tool kit can be found in the
stowage well under the cargo compartment
floor.
iApart from certain country-specific
variations, the vehicles are not equipped
with a tire-change tool kit. Some tools for
changing a wheel are specific to the
vehicle. For more information on which
tools are required to perform a wheel
change on your vehicle, consult a qualified
specialist workshop.
Tools required for changing a wheel may
include, for example:
RJack
RWheel chock
RLug wrench
RRatchet wrench
RAlignment bolt
Vehicles with a TIREFIT kit
CLug wrench
DTowing eye

!Make sure that the electric parking brake
is released. If the electric parking brake is
faulty, visit a qualified specialist workshop.
!Only secure the tow rope or tow bar at the
towing eyes, or the trailer tow hitch, if
available. You could otherwise damage the
vehicle.
!Do not use the towing eye for recovery,
this could damage the vehicle. If in doubt,
recover the vehicle with a crane.
!When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
!When towing vehicles with KEYLESS-GO,
use the key instead of the Start/Stop
button. Otherwise, the automatic
transmission may shift to positionPwhen
the driver's or front-passenger door are
opened, which could lead to damage to the
transmission.
!Do not tow with sling-type equipment.
This could damage the vehicle.
!Vehicles with differential locks: make
sure the differential locks are in automatic
mode. When towing, the differential locks
must not be switched on. The transmission
may otherwise be damaged.
!The vehicle can be towed a maximum of
30 miles (50km). The towing speed of
30 mph (50 km/h) must not be exceeded.
If the vehicle has to be towed more than
30 miles(50km), the entire vehicle must be
raised and transported.
!If you tow or tow-start another vehicle, its
weight must not exceed the maximum
permissible gross vehicle weight of your
vehicle.
Information on your vehicle's gross vehicle
weight rating can be found on the vehicle
identification plate (Ypage 444).
iInformation on your vehicle's gross
vehicle weight rating can be found on the
vehicle identification plate; see the printed
Operator's Manual.
It is better to have the vehicle transported
than to have it towed.
If the vehicle has suffered transmission
damage, have it transported on a transporter
or trailer.
The automatic transmission must be in
positionNwhen the vehicle is being towed.
The battery must be connected and charged.
Otherwise, you:
Rcannot turn the SmartKey to position2in
the ignition lock
Rcannot release the electric parking brake
Rcannot shift the automatic transmission to
positionN
iDisarm the automatic locking feature
before the vehicle is towed (Ypage 284).
You could otherwise be locked out when
pushing or towing the vehicle.
Installing/removing the towing eye
Installing the towing eye
Example: towing eye mounting covers
CFront cover
DBack cover
398Towing and tow-starting
Breakdown assistance