ESP MERCEDES-BENZ GL SUV 2009 Service Manual

laden or towing a trailer, you must select shift
range 1,2or 3in good time. By doing so, you
will make use of the braking effect of the
engine, which relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. G
Risk of accident
The brake pedal is retracted when Distronic
brakes. Do not restrict the movement of the
pedal in any way.
R Do not put any objects in the footwell.
R Ensure that floor mats and carpets are fixed
securely.
R Do not place your foot under the brake
pedal as it could become trapped.
You could otherwise cause an accident and
injure yourself and others. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
Risk of accident
Distronic is only an aid designed to assist
driving. The driver is fully responsible for the
vehicle's distance from other vehicles, the
vehicle's speed and for braking in good time.
Distronic does not react to:
R pedestrians
R stationary obstacles on the road, e.g. sta-
tionary or parked vehicles
R oncoming and crossing traffic
Distronic may not detect narrow vehicles driv-
ing in front, e.g. motorcycles, or vehicles driv-
ing on a different line. Therefore, always pay
attention to traffic conditions even when Dis-
tronic is activated. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
If a slower-moving vehicle is detected in front,
Distronic causes your vehicle to brake and maintain the preset distance to the vehicle in
front that you have set. G
Risk of accident
Distronic cannot take account of road and
traffic conditions. Deactivate, or do not acti-
vate, Distronic if it does not detect the vehicle
in front, or if it no longer detects it. This is
especially the case:
R before corners
R in filter lanes
R when changing to a lane with faster moving
traffic
R in complex driving situations or where the
lanes are diverted, e.g. at motorway/road-
way construction sites
Otherwise, Distronic maintains the current
speed or accelerates to the set speed.
Distronic cannot take account of weather
conditions. Deactivate, or do not activate,
Distronic:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when Distronic is activated. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers.
If no car is driving in front of you, Distronic
works like cruise control in the speed range
between 30 km/h and 200 km/h. If a vehicle
is driving in front of you, Distronic Plus works
in the speed range between 0 km/h and
200 km/h.
Do not use Distronic while driving on roads
with steep gradients. 120
Driving systemsControls
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 120
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:21; WK

G
Risk of accident
Distronic brakes your vehicle at a maximum
of 4m /s2
, depending on its speed. This cor-
responds to approximately 40% of your vehi-
cle's maximum brake force. You must also
apply the brakes yourself if this braking power
is not sufficient.
If Distronic detects a risk of collision with a
vehicle in front, an intermittent warning tone
sounds. In addition, the ·distance warn-
ing lamp in the instrument cluster lights up.
Brake to avoid a collision.
Cruise control lever You can operate Distronic and variable
Speedtronic with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off:
Distronic is selected.
R LIM indicator lamp lit:
Variable Speedtronic is selected. :
To store the current speed or a higher
speed
; To adjust the specified distance
= LIM indicator lamp
? To store the current speed or call up the
last stored speed
A To store the current speed or a lower
speed B
To switch between Distronic and variable
Speedtronic
C To deactivate Distronic
Selecting Distronic X
Check whether LIM indicator lamp =is off.
If it is off, Distronic is already selected.
If it is not, press the cruise control lever in
the direction of arrow B.
LIM indicator lamp =in the cruise control
lever goes off. Distronic is selected.
Switching on Distronic, storing and
maintaining the current speed G
Risk of accident
The vehicle can be braked when Distronic is
activated. For this reason, deactivate Dis-
tronic if the vehicle is to be set in motion by
other means (e.g. in a car wash or by towing).
You can activate Distronic in the following
circumstances:
R for about two minutes after the engine is
started
R when the engine is running
R if you do not brake during the journey
R when the parking brake is not applied
R if ESP ®
is activated
R if the automatic transmission is in position
D
R if the bonnet is closed
Activating while driving
When driving at speeds below 30 km/h, you
can only activate Distronic if the vehicle in
front has been detected and is shown in the
multi-function display. If the vehicle in front is
not shown in the multi-function display and is
no longer being detected, because it has
changed lanes, for example, Distronic is
deactivated and you hear a warning tone. Driving systems
121Controls
X164_AKB; 2; 3, en-GB
wobuchh,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 121 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:21; WK

X
Briefly pull the cruise control lever towards
you ?or press it up :or down Ato the
pressure point.
Distronic is activated.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the stored
speed.
i You can use the cruise control lever to set
the stored speed and the thumbwheel on
the cruise control lever to set the specified
minimum distance (Y page 123).
i If you do not fully release the accelerator
pedal, the DISTRONIC Override message
appears in the multi-function display. The
distance to a slower-moving vehicle in front
will then not be governed. You will be driv-
ing at the speed you determine by the posi-
tion of the accelerator pedal.
Driving
If there is no vehicle in front, Distronic oper-
ates in the same way as cruise control.
If a slower-moving vehicle is detected in front,
Distronic causes your vehicle to brake and
maintain the preset distance to the vehicle in
front.
If Distronic detects a faster-moving vehicle in
front, it increases the driving speed, but only
as far as the stored speed. G
Risk of accident
If you depress the brake pedal, Distronic is
deactivated. Distronic will then no longer
brake your vehicle. The driver is fully respon-
sible for the vehicle's distance from other
vehicles, its speed and for braking in good
time. Stopping G
Risk of accident
The Distronic braking effect is cancelled and
the vehicle can start moving if:
R Distronic is deactivated using the cruise
control lever.
R you accelerate.
R the system or the power supply is disrup-
ted, e.g. due to battery failure.
R the electrical system in the engine com-
partment or the fuses have been tampered
with.
R the battery is disconnected. G
Risk of accident
Distronic must never be operated or deacti-
vated by a passenger or from outside the vehi-
cle.
If you wish to leave the vehicle or park it,
deactivate Distronic and secure the vehicle
against rolling away.
If Distronic detects that the vehicle in front is
stopping, it brakes your vehicle until it is sta-
tionary.
i Depending on the specified minimum dis-
tance, your vehicle will come to a standstill
about four metres behind the vehicle in
front. The specified minimum distance is
set using the thumbwheel on the cruise-
control lever.
Distronic is deactivated automatically when
stopping:
R on flat stretches of road or on downhill gra-
dients when the vehicle is stationary.
R while the vehicle is still moving on uphill
gradients, to prevent the vehicle from unex-
pectedly rolling back when Distronic is
deactivated.
If Distronic is deactivated, you will hear a
warning tone.
X Secure the vehicle against rolling away. 122
Driving systemsControls
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 122
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:21; WK

i
Distronic is not deactivated if you depress
the accelerator pedal. If you accelerate
briefly to overtake, Distronic adjusts the
vehicle's speed to the last speed stored
after you have finished overtaking.
Distronic is automatically deactivated if:
R you depress the parking brake
R you are driving slower than 25 km/h and
there is no vehicle in front, or the vehicle in
front is no longer detected
R ESP ®
intervenes or you deactivate ESP ®
R you shift the automatic transmission to N,
P or R
If Distronic is deactivated, you will hear a
warning tone. You will see the DISTRONIC
Off message in the multi-function display for
approximately five seconds.
Tips for driving with Distronic The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. Distronic is then deacti-
vated.
Cornering, entering and exiting a bend
The ability of Distronic to detect vehicles
when cornering is limited. Your vehicle may
brake unexpectedly or too late. Vehicles travelling on a different line
Distronic may not detect vehicles travelling
on a different line. The distance to the vehicle
in front will be too short.
Other vehicles changing lane
Distronic has not yet detected the vehicle
cutting in. The distance to this vehicle will be
too short.
Narrow vehicles Distronic has not yet detected the vehicle in
front on the edge of the carriageway, because Driving systems
125Controls
X164_AKB; 2; 3, en-GB
wobuchh, Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 125 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:23; WK

of its narrow width. The distance to the vehi-
cle in front will be too short.
Obstructions and stationary vehicles Distronic does not brake for obstructions or
stationary vehicles. If, for example, the detec-
ted vehicle turns a corner and there is an
obstacle or stationary vehicle ahead of it, Dis-
tronic will not brake for these.
Crossing vehicles Distronic may detect vehicles that are cross-
ing your lane by mistake. Activating Distronic
at, for example, a traffic light with crossing
traffic, could cause your vehicle to pull away
at the wrong time. Speedtronic
Speedtronic brakes automatically so that you
do not exceed the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
select shift range 1,2or 3in good time. By
doing so, you will make use of the braking effect of the engine, which relieves the load
on the brake system and prevents the brakes
from overheating and wearing too quickly. If
you need additional braking, depress the
brake pedal repeatedly rather than continu-
ously. G
Risk of accident
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
You can set a variable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
(Y page 128) G
Risk of accident
Speedtronic is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic With the cruise control lever, you can operate
cruise control, Distronic* and variable Speed-
tronic.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off: 126
Driving systemsControls
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 126
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:23; WK

Adapt your driving style to suit the vehicle
level. ESP ®
cannot reduce the risk of an acci-
dent if you drive too fast. ESP ®
cannot over-
ride the laws of physics.
! When driving on extremely rough terrain,
select a high vehicle level in good time.
Make sure there is always sufficient ground
clearance to prevent damage to the vehi-
cle.
You will find information about driving off-
road in the "Operation" section
(Y page 188).
Basic settings The extent to which the vehicle is raised or
lowered depends on the basic setting selec-
ted.
Select:
R Off-road level 3 for freeing the vehicle in
impassable terrain at low speeds only
R Off-road level 2 for driving on normal off-
road terrain
R Off-road level 1 for driving on easily nego-
tiable off-road terrain
R Highway/high-speed level for normal roads
The individual vehicle levels are:
R Off-road level 3: 90 mm above highway
level
R Off-road level 2: 60 mm above highway
level
R Off-road level 1: 30 mm above highway
level
R Highway level: +/- 0 mm
R High-speed level: 15 mm below highway
level Off-road levels G
Risk of accident
Off-road level 3 is not permitted for use on
public roads. Off-road level 3 gives your vehi-
cle a very high centre of gravity. This increa-
ses the risk of the vehicle tipping over.
R Only select off-road level 3 for driving off-
road in particularly rough terrain.
R Adjust your driving style to the altered han-
dling characteristics.
R Do not drive faster than 20 km/h.
R Avoid sudden major steering movements.
R Take account of the altered handling char-
acteristics.
If you are driving too fast in off-road level 3,
the Bring speed below 20 km/h message
appears in the multi-function display. You
additionally hear a warning tone. The vehicle
is lowered.
i You cannot clear these messages.
Only select an off-road level when this is
appropriate for the road conditions. Other-
wise, fuel consumption increases and han-
dling performance may be affected.
Your selection remains stored even if you
remove the key from the ignition lock. 130
Driving systemsControls
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 130
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:24; WK

X
Start the engine.
X Turn selector wheel :clockwise.
The vehicle is raised.
or
X Turn selector wheel ;anti-clockwise.
The vehicle is lowered.
Indicator lamps =for the desired off-road
level flash:
R Off-road level 1: the lower indicator lamp
flashes
R Off-road level 2: the lower and centre indi-
cator lamps flash
R Off-road level 3: all three indicator lamps
flash
The vehicle is being adjusted to the off-road
level selected. As soon as an off-road level is
reached, the corresponding indicator lamp
stops flashing and lights up constantly.
While the adjustment is taking place, a mes-
sage appears in the multi-function display,
e.g.: The vehicle rises from highway level to off-
road level 1.
If you press the
WorX button on the
multi-function steering wheel, the messages
will disappear.
Once off-road level 2 has been reached, you
will see a message in the multi-function dis-
play, for example: Lower and centre indicator lamps
=are on. If you have not previously selected the off-
road menu (Y
page 102) in the on-board com-
puter, the message disappears after about
five seconds.
The 20km/h max. message draws your atten-
tion to the maximum speed permitted for off-
road level 3.
While the adjustment from off-road level 2 to
off-road level 3 is taking place, you will see a
message such as the following in the multi-
function display: Once off-road level 3 has been reached, you
will see a message in the multi-function dis-
play, for example:
If you drive above 20 km/h in off-road level
3, you will see the following message in the
multi-function display:
Off-road level 3 is cancelled.
If you then increase the speed again, the mes-
sage remains in the multi-function display.
The newly set level is not displayed until the
vehicle has been set to a level suitable for the
current speed. Driving systems
131Controls
X164_AKB; 2; 3, en-GB
wobuchh, Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 131 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:25; WK

If one or more indicator lamps
=are on:
X Turn the selector wheel anti-clockwise ;
until all indicator lamps =that are lit start
to flash.
The vehicle is lowered to highway level. As
soon as the next lowest level is reached,
the indicator lamp stops flashing and goes
out.
While the adjustment is taking place, a mes-
sage appears in the multi-function display,
e.g.: If you press the
WorX button on the
multi-function steering wheel, the messages
will disappear.
Once highway level has been reached, all indi-
cator lamps =go out. You will see a message
in the multi-function display, for example: If you have not previously selected the off-
road menu (Y
page 102) in the on-board com-
puter, the message disappears after about
five seconds.
The vehicle automatically selects highway
level if you are driving at a speed above
115 km/h or if you drive at between
100 km/h and 115 km/h for around 20 sec-
onds. Depending on the ADS basic setting
(Y page 129), the vehicle is lowered to high-
speed level at high speeds. PARKTRONIC*
G
Risk of accident
PARKTRONIC is only an aid and may not
detect all obstacles. It is not a substitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
Risk of injury
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid
using ultrasound. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically when
you:
R switch on the ignition
R release the parking brake
R shift the automatic transmission to D,Ror
N
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper. :
Example: sensors in the front bumper,
left-hand side Driving systems
133Controls
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 133 Z
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:26; WK

the responsibility to pay attention. The cam-
era cannot show objects:
R very near to the rear bumper
R below the rear bumper
R that are located above the tailgate handle
recess
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. This applies to the areas
behind, in front of and next to the vehicle. You
could otherwise endanger yourself and oth-
ers. G
Risk of accident
Under the following circumstances, the
reversing camera will not function, or function
in a limited manner:
R if the tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light R
if the area is lit by fluorescent light (the dis-
play may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In this
event have the camera position and setting
checked at a qualified specialist workshop.
Mercedes-Benz recommends that you use
a Mercedes-Benz Service Centre for this
purpose.
Do not use the reversing camera in these
types of situation. You could, otherwise,
injure others or damage objects and your
vehicle while you are parking.
Activating the reversing camera X
Make sure that the key is in position 2in
the ignition lock.
X Engage reverse gear.
The area behind the vehicle is shown in the
COMAND APS display. Air conditioning
Overview of air-conditioning systems
The vehicle is equipped with one of the following air-conditioning systems: Thermatic 2-zone automatic climate control
Front control unit Thermatic 2-zone automatic climate control
combines an automatic heating and ventila-
tion system with a cooling system. You can
control the temperature separately for the
driver's and front-passenger sides.136
Air conditioningControls
X164_AKB; 2; 3, en-GB
wobuchh
,V ersion: 2.11.8.1
2009-03-31T14:14:58+02:00 - Seite 136
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:27; WK

G
Risk of injury
Children could injure themselves if they oper-
ate the sliding sunroof.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
a short time. G
Risk of injury
The glass in the panorama sunroof could
break in an accident. If you are not wearing a
seat belt, there is a risk that you could be
thrown through the opening in the event of the
vehicle overturning. Therefore, always wear a
seat belt to reduce the risk of injuries.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. The seals could otherwise
be damaged.
i When the sliding sunroof is open, apart
from the normal airflow noises resonance
noises may also occur. They are caused by
minor pressure fluctuations in the vehicle
interior. Change the position of the sliding
sunroof or open a side window slightly to
reduce or eliminate these noises.
i Related topics:
R convenience opening from the out-
side (Y page 87) or from the inside
(Y page 147)
R convenience closing from the out-
side (Y page 87) or from the inside
(Y page 147)
R automatic closing of the sliding sunroof
(PRE-SAFE*) (Y page 40) Sliding/tilting sunroof*
Overhead control panel
:
To open
; To close/lower
= To raise
X Turn the key to position 2in the ignition
lock.
X Pull or push the switch in the corresponding
direction.
i If you press the switch beyond the point
of resistance, an automatic opening/clos-
ing process is started in the corresponding
direction. You can stop automatic opera-
tion by pressing again.
The sun protection cover automatically opens
along with the sliding/tilting sunroof. Once
you have closed the sliding/tilting sunroof,
you can close the cover by hand.
Closing with increased force and with-
out the anti-entrapment feature G
Risk of injury
You could be severely or even fatally injured
when closing the sliding/tilting sunroof with
increased force or without the anti-entrap-
ment feature. Make sure that nobody can
become trapped when closing the sliding/tilt-
ing sunroof.
If the sliding/tilting sunroof locks up during
closing:
X Immediately after it locks up, pull the
switch again to the pressure point in the 150
Sliding sunroofControls
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
Version: 2.11.8.1 2009-03-31T14:14:58+02:00 - Seite 150
Dateiname: 6515431202_buchblock.pdf; erzeugt am 01. Apr 2009 00:17:32; WK