display MERCEDES-BENZ GL-Class 2014 X166 Owner's Guide

R
a vehicle traveling in front on a different line
relative to the center of your vehicle
R new vehicles or after the COLLISION
PREVENTION ASSIST system has been
serviced
Observe the notes in the section on
breaking-in (Y page 166).
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensor checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle. ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes"
section (Y page 67).
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.
4ETS (Electronic Traction System) 4ETS traction control is part of ESP
®
.
Traction control 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.
Traction control remains active, even if you
deactivate ESP ®
.
In appropriate driving situations, activate the
off-road program (Y page 258). Off-road 4ETS (Electronic Traction
System) A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (Y
page 258).
Important safety notes G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilize the vehicle. Additionally, further
driving safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop.
! Only operate the vehicle for a maximum
of ten seconds on a brake test
dynamometer. Switch off the ignition.
Application of the brakes by ESP ®
may
otherwise destroy the brake system.
! A function or performance test should
only be carried out on a two-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.
ESP ®
is deactivated if the åwarning lamp
in the instrument cluster lights up
continuously when the engine is running.
If the ÷ warning lamp and the å
warning lamp are lit continuously, ESP ®
is not
available due to a malfunction.
Observe the information on warning lamps
(Y page 329) and display messages which
may be shown in the instrument cluster
(Y page 291).
i Only use wheels with the recommended
tire sizes. Only then will ESP ®
function
properly. 72
Driving safety systemsSafety

You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified
specialist workshop.
Observe information regarding indicator and
warning lamps ( Ypage 327) as well as
display messages (Y page 293). ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In
addition to the braking function, ADAPTIVE
BRAKE also has the HOLD function
(Y page 216) and hill start assist
(Y page 171). PRE-SAFE
®
Brake
General information i
Observe the "Important safety notes"
section (Y page 67).
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
For PRE-SAFE ®
Brake to assist you when
driving, the radar sensor system must be
operational.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
PRE-SAFE ®
Brake can help you to minimize
the risk of a collision with a vehicle ahead, and
reduce the effects of such a collision. If PRE-
SAFE ®
Brake has detected a risk of collision,
you will be warned visually and acoustically
as well as by automatic braking. PRE-SAFE ®
Brake cannot prevent a collision without your
intervention. Important safety notes G
WARNING
PRE-SAFE ®
Brake will initially brake your
vehicle by a partial application of the brakes
if a danger of collision is detected. There may
be a collision unless you also brake.
Automatic emergency braking cannot prevent
a collision. There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action. G
WARNING
PRE-SAFE ®
Brake cannot always clearly
identify objects and complex traffic
conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE ®
Brake warns you. Terminate the
intervention in a non-critical driving situation.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself. G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, PRE-SAFE ®
Brake may neither
give warnings nor intervene in all critical
situations. There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In the event of snowfall or heavy rain, the
recognition can be impaired. Driving safety systems
75Safety Z

Recognition by the radar sensor system is
also impaired in the event of:
R dirt on the sensors or anything else
covering the sensors
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
relative to the center of your vehicle
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
Function X
To activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer (Y page 281).
If the PRE-SAFE ®
Brake is not activated, the
æ symbol appears in the multifunction
display.
Starting at a speed of around 4 mph
(7 km/h), this function warns you if you
rapidly approach a vehicle in front. An
intermittent warning tone will then sound and
the · distance warning lamp will light up
in the instrument cluster.
X Brake immediately to defuse the situation.
or
X Take evasive action provided it is safe to do
so.
PRE-SAFE ®
Brake can also brake the vehicle
automatically under the following conditions:
R the driver and front-passenger have their
seat belts fastened
and
R the vehicle speed is between
approximately 4 mph (7 km/h) and
124 mph (200 km/h) At speeds of up to approximately 40 mph
(70 km/h) PRE-SAFE ®
Brake can also detect
stationary objects. Examples of stationary
objects are stopped or parked vehicles.
i If there is an increased risk of collision,
preventive passenger protection measures
(PRE-SAFE ®
) are activated.
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking,
up to the point of full brake application.
Automatic emergency braking is not
performed until immediately prior to an
imminent accident.
You can prevent the intervention of the PRE-
SAFE ®
Brake at any time by:
R depressing the accelerator pedal further.
R activating kickdown.
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer any danger of a collision.
R there is no longer an obstacle detected in
front of your vehicle.
If you have activated DSR (Y page 256), PRE-
SAFE ®
Brake is deactivated. STEER CONTROL
General information STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilization.
This steering assistance is provided in
particular if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R the vehicle starts to skid. 76
Driving safety systemsSafety

Useful information
i This 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.
i Read the information on qualified
specialist workshops: (Y page 28).Correct driver's seat position
G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. X
Observe the safety guidelines on seat
adjustment (Y page 107).
X Make sure that seat =is adjusted
properly.
Electrical seat adjustment (Y page 108)
When adjusting the seat, make sure that:
R you are as far away from the driver's air bag
as possible.
R you are sitting in a normal upright position.
R you can fasten the seat belt properly.
R you have moved the backrest to an almost
vertical position.
R you have set the seat cushion angle so that
your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint. Also make
sure that you have adjusted the head
restraint so that the back of your head is as
close to the head restraint as possible. This
will be the case if the head restraint is
adjusted correctly (Y page 109).
X Observe the safety guidelines on steering
wheel adjustment (Y page 119).
X Make sure that steering wheel :is
adjusted properly.
Adjusting the steering wheel manually
(Y page 119)
Adjusting the steering wheel electrically
(Y page 120)
When adjusting the steering wheel, make
sure that:
R you can hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrument cluster clearly.
X Observe the safety guidelines for seat belts
(Y page 55). 106
Correct driver's seat positionSeats, steering wheel and mirrors

G
WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Adjusting the backrest angle (second
row of seats) You can adjust the angle of the backrests in
the second row of seats. There are ten detent
positions to choose from.
X
Pull the left or right release lever ;
upwards in the direction of the arrow until
relevant backrest :is fully released.
X Pull backrest :forwards in the direction
of the arrow and allow it to engage.
X To ensure that the backrest has engaged,
lean firmly against backrest :.Folding the seats up/down (third row of
seats) General notes
!
Make sure that there is nothing on the
folded-down seats in the cargo
compartment. The cargo compartment
must be empty for the third row of seats to
be folded up. The seats or the objects in the
cargo compartment could otherwise be
damaged.
Make sure that the seats in the third row
are empty and not blocked before folding
them down.
The 3rd row of seats consists of two
electrically foldable individual seats, which
can be lowered into the cargo compartment.
If the seat is not correctly locked in position,
the display message: 3rd Seat Row, 3rd Seat Row,
Right Not Locked
Right Not Locked appears in the
multifunction display.
If you fold the seat back until it engages, the
display message disappears.
Pull the backrest firmly to ensure that it is fully
engaged.
The switches for folding the left or right-hand
seats up and down are marked: Lfor the left-
hand seat when viewed in the direction of
travel, Rfor the right-hand seat when viewed
in the direction of travel. Seats
111Seats, steering wheel and mirrors Z

Folding down the seats in the second
row manually Important safety notes
G
WARNING
If the seat and backrest are not engaged, they
can fold forwards, e.g. in the event of sudden
braking or an accident.
R This will cause the vehicle occupants to be
forced into the seat belt by a seat or
backrest which is not engaged. The seat
belt can no longer offer the intended level
of protection and could even cause injuries.
R A child restraint system would no longer be
anchored or positioned correctly and would
not be able to perform its required function.
R The seat backrests cannot restrain objects
or loads in the cargo compartment.
There is an increased risk of injury.
Always make sure that the seat and backrest
are engaged as described:
R before traveling with a passenger on a seat
with the EASY-ENTRY/EXIT feature
R after you have adjusted the seat
R after the EASY-ENTRY/EXIT feature has
been used
R after the cargo compartment enlargement
has been folded forwards G
WARNING
The seat does not engage in the entry/exit
position. The seat could fold back suddenly,
e.g. when accelerating, braking, changing
direction suddenly or in the event of an
accident. Persons in the sweep of the seat
could become trapped. There is a risk of
injury.
Always fold back a seat which has been folded
forwards before you pull away. Make sure that
the seat and backrest engage fully.
General notes
To enter or exit the third row of seats: the
outer left and right seats of the second row
can be folded down. One of the outer seats of the 2nd row is in the
entry/exit position: the multifunction display
shows, e.g. the
2nd 2ndSeat
Seat Row,
Row,Right
Right Not
Not
Locked
Locked display message.
If you fold the seat back until it engages, the
display message disappears.
Pull the backrest firmly to ensure that it is fully
engaged.
i Further related subjects:
R Cargo compartment enlargement
(folding the second row of seats
forwards) ( Ypage 344)
R Folding the seats in the third row
forwards/back (Y page 111)
Entry position The release handle for the EASY-ENTRY/EXIT
feature is located on the entry side on the
back of each outer seat in the second row of
seats.
X
Move the head restraint to the lowest
position (Y page 110).
X Pull release handle ;in the direction of
the arrow to the pressure point and hold it
in this position.
The backrest folds forwards.
You have two options for folding the seat
down fully. Seats
113Seats, steering wheel and mirrors Z

belt can no longer offer the intended level
of protection and could even cause injuries.
R A child restraint system would no longer be
anchored or positioned correctly and would
not be able to perform its required function.
R The seat backrests cannot restrain objects
or loads in the cargo compartment.
There is an increased risk of injury.
Always make sure that the seat and backrest
are engaged as described:
R before traveling with a passenger on a seat
with the EASY-ENTRY/EXIT feature
R after you have adjusted the seat
R after the EASY-ENTRY/EXIT feature has
been used
R after the cargo compartment enlargement
has been folded forwards G
WARNING
The seat does not engage in the entry/exit
position. The seat could fold back suddenly,
e.g. when accelerating, braking, changing
direction suddenly or in the event of an
accident. Persons in the sweep of the seat
could become trapped. There is a risk of
injury.
Always fold back a seat which has been folded
forwards before you pull away. Make sure that
the seat and backrest engage fully.
X To lock the seat: fold back the seat until
it engages.
X Fold back the backrest until it engages.
Folding down the seats in the second
row electrically Important safety notes
G
WARNING
If the seat and backrest are not engaged, they
can fold forwards, e.g. in the event of sudden
braking or an accident.
R This will cause the vehicle occupants to be
forced into the seat belt by a seat or backrest which is not engaged. The seat
belt can no longer offer the intended level
of protection and could even cause injuries.
R A child restraint system would no longer be
anchored or positioned correctly and would
not be able to perform its required function.
R The seat backrests cannot restrain objects
or loads in the cargo compartment.
There is an increased risk of injury.
Always make sure that the seat and backrest
are engaged as described:
R before traveling with a passenger on a seat
with the EASY-ENTRY/EXIT feature
R after you have adjusted the seat
R after the EASY-ENTRY/EXIT feature has
been used
R after the cargo compartment enlargement
has been folded forwards G
WARNING
The seat does not engage in the entry/exit
position. The seat could fold back suddenly,
e.g. when accelerating, braking, changing
direction suddenly or in the event of an
accident. Persons in the sweep of the seat
could become trapped. There is a risk of
injury.
Always fold back a seat which has been folded
forwards before you pull away. Make sure that
the seat and backrest engage fully.
General notes
To enter or exit the third row of seats: the
outer left and right seats of the second row
can be folded down electrically.
One of the outer seats of the second row is in
the entry/exit position: the multifunction
display shows, e.g. the 2nd Seat Row, 2nd Seat Row,
Right Not locked
Right Not locked display message.
If you fold the seat back until it engages, the
display message disappears.
Pull the backrest firmly to ensure that it is fully
engaged. Seats
115Seats, steering wheel and mirrors Z

X
To switch on: turn the light switch to
Ã.
X Press the combination switch beyond the
pressure point in the direction of
arrow :.
The _ indicator lamp in the
multifunction display lights up when it is
dark and the light sensor activates the low-
beam headlamps.
If you are driving at speeds above
approximately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above
approximately 19 mph (30 km/h) and no
other road users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 16 mph (25 km/h) or other
road users have been detected or the roads
are adequately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
X To switch off: move the combination
switch back to its normal position or move
the light switch to another position.
The _ indicator lamp in the instrument
cluster goes out. Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of
the headlamp. Interior lighting
Overview of interior lighting
Overhead control panel
:
p To switch the left-hand front reading
lamp on/off
; c To switch the front interior lighting
on
= v To switch the on/off
? | To switch the front interior lighting/
automatic interior lighting control off
A p To switch the right-hand front
reading lamp on/off
B To switch the automatic interior lighting
control on Rear overhead control panel (second row of seats)
:
To switch the reading lamp on/off Interior lighting
135Lights andwindshield wipers Z

=
To direct the airflow through the rear air vents
? To direct the airflow through the footwell vents Information about using 2-zone
automatic climate control
The following contains notes and
recommendations on optimum use of dual-
zone automatic climate control.
R Activate climate control using the Ãand
¿/Á buttons. The indicator lamps in
the à and¿/Á buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "Windshield defrosting"
function briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp above the ábutton goes
out.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for
approximately three seconds at the bottom
of the screen in the COMAND display. See
also the separate COMAND operating
instructions. You will see the current
settings of the various climate control
functions. Overview of climate control systems
149Climate control

Control panel for 3-zone automatic climate control
USA only
Front control panel
: To set the temperature, left (Y page 157)
; To defrost the windshield (Y page 159)
= To switch maximum cooling on/off (Y page 159)
? To switch cooling with air dehumidification on/off (Y page 155)
A To switch the rear window defroster on/off (Y page 160)
B To set the temperature, right (Y page 157)
C To switch the ZONE function on/off (Y page 159)
D To switch climate control on/off (Y page 154)
E To set the air distribution (Y page 158)
F To increase the airflow (Y page 158)
G To reduce the airflow (Y page 158)
H Display
I To adjust the climate mode settings (Y page 157)
J To activate/deactivate air-recirculation mode (Y page 161)
K To set climate control to automatic (Y page 156)
Rear control panel
L To increase the airflow (Y page 158)
M Setting the temperature (Y page 157)
N To set rear-compartment climate control to automatic (Y page 156)
O To direct the airflow through the rear air vents (Y page 158)
P To direct the airflow through the footwell vents (Y page 158)150
Overview of climate control systemsClimate control