2008 MERCEDES-BENZ GLK SUV steering

appears in the multi-function display with the
Off
message. You also hear a warning tone.
Changing the set speed while the vehi-
cle is in motion When DSR is activated, you can change the
set speed to a value between 4 km/h and
18 km/h while the vehicle is in motion.
X
To increase or reduce the set speed by
1 km/hincrements: briefly press the
cruise control lever to the pressure point
up : for a higher set speed or down ;for
a lower set speed.
On vehicles with the multi-function steering
wheel (4 button), the set value appears in
the left-hand status indicator. On vehicles
with the luxury multi-function steering
wheel* (12 button), the set value appears
in the multi-function display.
X To increase or reduce the set speed by
2 km/hincrements: briefly press the
cruise control beyond the pressure point
up : for a higher set speed or down ;for
a lower set speed.
On vehicles with the multi-function steering
wheel (4 button), the set value appears in
the left-hand status indicator. On vehicles
with the luxury multi-function steering
wheel* (12 button), the set value appears
in the multi-function display. Off-road drive program* (vehicles
with off-road engineering package*)
The off-road drive program assists you in driv-
ing off-road and when fording. The engine’s
performance characteristics and the gear-
shifting characteristics of the automatic
transmission are adapted for this purpose.
ABS, ESP ®
and ETS programs especially
adapted to off-road driving are also activated.
Do not use the off-road drive program on
roads that are snowy or icy or if you have fit-
ted your vehicle with snow chains. X
To activate: press button ;.
Indicator lamp :lights up.
On vehicles with the luxury multi-function
steering wheel* (12 button): in the multi-func-
tion display you see the off-road symbol: X
To deactivate: press button;.
Indicator lamp :goes out. On vehicles
with the luxury multi-function steering
wheel* (12 button), the off-road display
= also goes off. Off-road driving
107Controls
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Driving systems
Overview of driving systems
The vehicle's driving systems are described
on the following pages:
R cruise control* and Speedtronic*, which
are used to control the speed of the vehicle
R Parktronic*, which assists you in parking
and manoeuvring
R reversing camera*, which assists you when
parking and manoeuvring
The ABS, BAS, adaptive brake lights, ESP ®
and EBV (electronic brake-power distribution)
driving safety systems are described in the
"Driving safety systems" section
(Y page 51). Cruise control*
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
select shift range 1,2or3 in 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. 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.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 30 km/h. G
Risk of accident
Cruise control cannot take account of road
and traffic conditions. Always pay attention to traffic conditions
even when cruise control is activated.
Cruise control is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time. G
Risk of accident
Do not use cruise control:
R in road and traffic conditions which do not
allow you to maintain a constant speed (e.g.
heavy traffic or winding roads). You could
otherwise cause an accident.
R on slippery roads. Braking or accelerating
could cause the drive wheels to lose trac-
tion and the vehicle could then skid.
R when there is poor visibility, e.g. due to fog,
heavy rain or snow
Cruise control display in the speedom-
eter (vehicles with the luxury multi-
function steering wheel *,12 buttons) When cruise control is activated, the seg-
ments from the set speed to the maximum
speed light up in the multi-function display.
:
Segments
Cruise control lever You can operate cruise control 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: 108 Driving systemsControls
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cruise control is selected
R LIM indicator lamp lit:
variable Speedtronic is selected :
To store the current speed or a higher
speed
; LIM indicator lamp
= To store the current speed or call up the
last stored speed
? To store the current speed or a lower
speed
A To switch between cruise control and var-
iable Speedtronic
B To deactivate cruise control
When cruise control is activated, the stored
speed is displayed in the multi-function dis-
play for five seconds. In vehicles with the
multi-function steering wheel (4 button), the
stored speed is then permanently displayed
in the status indicator together with the
¯ symbol.
Selecting cruise control X
Check whether LIM indicator lamp ;is off.
If it is off, cruise control is already selected.
If it is not, press the cruise control lever in
the direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes off. Cruise control is selected.
Storing and maintaining the current
speed You can store the current speed if you are
driving faster than 30 km/h. X
Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever to the
pressure point up :or down ?.
X Remove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Storing the current speed or calling up
the last stored speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current situation. Otherwise, sudden acceler-
ation or braking could endanger you or others.
X Briefly pull the cruise control lever towards
you =.
X Remove your foot from the accelerator
pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously
stored speed.
Setting a speed X
Press the cruise control lever to the pres-
sure point up :for a higher speed or
down ?for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake, Driving systems
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Vehicles with the multi-function steering
wheel (4 button): the stored speed is per-
manently displayed in the status indicator,
e.g. LIM 100 km/h.
Vehicles with the luxury multi-function
steering wheel*( 12 button): the segments
from the start of the scale up to the stored
speed light up in the speedometer.
Storing the current speed or calling up
the last stored speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current driving and traffic situation. Other-
wise, sudden braking could endanger you or
others.
X Briefly pull the cruise control lever towards
you =.
Making fine adjustments in
1 km/hincrements X
Briefly press the cruise control lever to the
pressure point, up :for a higher speed or
down ?for a lower speed.
or
X Keep the cruise control lever pressed to the
pressure point until the desired speed is
set. Press the cruise control lever, up :
for a higher speed or down ?for a lower
speed.
Making adjustments in 10 km/hincre-
ments X
Briefly press the cruise control lever
beyond the pressure point up :for a
higher speed or down ?for a lower speed.
or
X Keep the cruise control lever pressed
beyond the pressure point until the desired
speed is set. Press the cruise control lever, up
: for a higher speed or down ?for a
lower speed.
Deactivating variable Speedtronic There are several ways to deactivate variable
Speedtronic:
X
Briefly press the cruise control lever for-
wards B.
or
X Briefly press the cruise control lever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable Speedtronic is
deactivated.
Cruise control* is selected.
Variable Speedtronic is deactivated automat-
ically when you depress the accelerator pedal
beyond the pressure point (kickdown), but
only if your current speed does not differ by
more than 20 km/h from the stored speed.
You will hear a warning tone if this is the case. G
Risk of accident
It is not possible to deactivate variable Speed-
tronic by braking.
i The last speed stored is cleared when you
switch off the engine.
Permanent Speedtronic (vehicles with
the luxury multi-function steering
wheel*, 12 buttons) i
Permanent Speedtronic is only available
in certain countries.
You can use the on-board computer to limit
the speed permanently to a value between
160 km/h (e.g. for driving with winter tyres)
and the maximum speed.
Just before the stored speed is reached, it
appears in the multi-function display.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). 112 Driving systemsControls
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Socket in the luggage compartment
X
Lift up the cover of socket :.Mobile phone*
G
Risk of accident
Observe the legal requirements of the country
in which you are currently driving regarding
operating mobile communications equipment
in a vehicle.
If it is permitted by law to operate communi-
cations equipment while the vehicle is in
motion, you may only do so when the traffic
situation allows. Otherwise, you could be dis-
tracted from the traffic conditions, cause an
accident and injure yourself and others.
Two-way radios and fax equipment used with-
out low-reflection exterior aerials can inter-
fere with the vehicle's electronics and,
thereby, jeopardise the operating safety of
the vehicle and your safety. Therefore, you
must only use this equipment if it is correctly
connected to a separate, reflection-free, exte-
rior aerial. G
Risk of injury
Excessive electromagnetic radiation may
cause damage to your health and the health
of others. Using an exterior aerial takes into
account current scientific discussions relat-
ing to the possible health risk posed by elec-
tromagnetic fields.
To ensure optimum reception quality for
mobile phones in the vehicle, and to minimise mutual influences between the vehicle elec-
tronics and mobile phones, Mercedes-Benz
recommends the use of an approved exterior
aerial. An exterior aerial conducts the elec-
tromagnetic fields generated by a wireless
device to the exterior of the vehicle; the field
strength within the vehicle interior is lower
than in a vehicle that does not have an exte-
rior aerial.
i
There are various mobile phone brackets
that may be fitted to your vehicle; in some
cases, these are country-specific. You can
obtain these mobile phone brackets from a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
The functions and services available when
you use the phone depend on your mobile
phone model and service provider.
Inserting the mobile phone
X Open the telephone compartment
(Y page 130).
X Place the mobile phone bracket into the
pre-installed fitting; see the separate
mobile phone bracket fitting instructions.
X Insert the mobile phone into the mobile
phone bracket; see the separate mobile
phone bracket fitting instructions.
If the mobile phone is inserted in the mobile
phone bracket, you can speak to the person
you are calling using the hands-free system.
You can operate the telephone using the
6 and~ buttons on the multi-function
steering wheel*. You can operate other
mobile phone functions via the on-board com-
puter (Y page 99).
When you take the key out of the ignition lock,
the mobile phone stays on but you can no
longer use the hands-free system.
If you are making a call and you would like to
take the key out of the ignition lock, first
remove the mobile phone from the bracket.
Otherwise, the call will be ended. 140 FeaturesControls
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Direction of rotation
Tyres with a specified direction of rotation
have additional benefits, e.g. if there is a risk
of aquaplaning. You will only gain these ben-
efits if the correct direction of rotation is
observed.
An arrow on the sidewall of the tyre indicates
its correct direction of rotation.
i An emergency spare wheel* may also be
fitted against the direction of rotation. Tyre tread
G
Risk of accident
Bear in mind that:
R tyre grip decreases rapidly on wet roads
when the tread depth is less than 3 mm.
Thus, you should replace tyres that have
insufficient tread.
R winter tyres should be replaced when the
tread depth is 4 mm or less as they will no
longer provide adequate grip.
R the tread on a tyre may not wear evenly.
Thus, you should regularly check the tread
depth and the condition of the tread across
the entire width of all tyres. If necessary,
turn the steering wheel so that you can see
the tyre tread more easily.
Otherwise, you could lose control of the vehi-
cle and cause an accident due to the reduced
grip of the tyres on the road. Tyre pressures
i You will find a table of tyre pressures for
various operating conditions on the inside
of your vehicle's fuel filler flap.
The valid value for the "Minispare" emer-
gency spare wheel* is stated on the spare
wheel and in the technical data section. G
Risk of accident
Tyre pressure that is either too high or too low
has a negative effect on the vehicle’s driving
safety, which could lead you to cause an acci-
dent. Therefore, you should regularly check
the pressure of all the tyres, particularly prior
to long trips, and correct the pressure as nec-
essary.
To test tyre pressure, use a suitable pressure
gauge. The outer appearance of a tyre does
not permit any reliable conclusion about the
tyre pressure. G
Risk of accident
Should the tyre pressure drop repeatedly:
R check the tyre for foreign bodies.
R check whether the wheel is losing air or the
valve is leaking.
R make sure that only a valve cap approved
by Mercedes-Benz has been fitted on the
tyre valve.
Tyre pressure that is too low has a negative
effect on the vehicle’s active safety, which
could lead to your causing an accident.
If possible, you should only correct tyre pres-
sures when the tyres are cold. Depending on
the ambient temperature, the speed you are
driving at and the load on the tyres, the tyre
temperature and thus the tyre pressure may
change by approximately 0.1 bar per 10 °C.
Take this into account when checking the
pressure of warm tyres and only correct it if
it is too low for the current operating condi-
tions.
Driving with tyre pressure that is too high or
too low can:
R shorten the service life of the tyres
R increase the likelihood of tyre damage
R have a negative effect on handling charac-
teristics (e.g. by causing aquaplaning) 152 Ty
res and wheelsOperation
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H
Environmental note
Check the tyre pressure regularly, at least
every 14 days. Tyre pressure loss warning
While the vehicle is in motion, the tyre pres-
sure loss warning system monitors the set
tyre pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tyre. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appear in the multi-function dis-
play. G
Risk of accident
The tyre pressure loss warning system does
not warn you of an incorrectly set tyre pres-
sure. The table on the inside of the fuel filler
flap will help you decide whether the tyre
pressures should be corrected.
The tyre pressure loss warning system does
not replace the need to regularly check your
vehicle's tyre pressures, since an even loss of
pressure on several tyres at the same time
cannot be detected by the tyre pressure loss
warning system.
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tyre is penetrated by a foreign object.
In the event of a sudden loss of pressure, bring
the vehicle to a halt by braking carefully. Do
not make any sudden steering movements
when doing so.
The function of the tyre pressure loss warning
system is limited or delayed if:
R snow chains are fitted to your vehicle's
tyres
R road conditions are wintry
R you are driving on sand or gravel R
you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration)
R you are towing a very heavy or large trailer
R you are driving with a heavy load (in the
vehicle or on the roof)
Restarting the tyre pressure loss warn-
ing system Restart the tyre pressure loss warning system
if you have:
R
changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, consult the table of tyre
pressures on the inside of the fuel filler flap
to ensure that the tyre pressure in all four
tyres is set correctly for the operating con-
ditions concerned.
X Also observe the notes in the section on
tyre pressures ( Ypage 152). G
Risk of accident
The tyre pressure loss warning system can
only give reliable warnings if you have set the
correct tyre pressure.
If an incorrect tyre pressure is set, these
incorrect values will be monitored.
A tyre with insufficient pressure results in
vehicle instability when driving, thus increas-
ing the risk of an accident.
Configuring using the multi-function
steering wheel
X Make sure that the key is in position 2in
the ignition lock.
X Press èto select Tyre pressure
menu: R.
X Press the íbutton.
The following appears in the multi-function
display: RFI active Reactivate: R
X Press the íbutton.
The following appears in the multi-function
display: Tyre press. OK? Tyres and wheels
153Operation
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Yes+ Cancel-
To confirm the restart of the tyre pressure
loss warning system:
X Press the +button.
The following appears in the multi-function
display: Run Flat Indicator restar-
ted.
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
or
To cancel the restart of the tyre pressure
loss warning system:
X Press the -button.
The previous settings will not be changed.
Configuring with the luxury multi-func-
tion steering wheel*
X Make sure that the key is in position 2in
the ignition lock.
X Press the (or& button to select the
Service menu.
X Press the $or% button to select
Tyre pressure.
X Press #.
The following appears in the multi-function
display: Run Flat Indicator active
Restart with OK
X Press #.
The following appears in the multi-function
display: Tyre press. now OK?
To confirm the restart of the tyre pressure
loss warning system:
X Press $or% to select Yes.
X Press #.
The following appears in the multi-function
display: Run Flat Indicator restarted
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
or
To cancel the restart of the tyre pressure
loss warning system: X
Press $or% to select Cancel.
X Press #.
The previous settings will not be changed. Interchanging the wheels
G
Risk of accident
Interchange the front and rear wheels only if
they have the same dimensions: for example
size, offset, etc.
After every wheel interchange/change, have
the tightening torque checked at a qualified
specialist workshop that has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
The wheels could work loose if they are not
tightened to a torque of 150 Nm.
For safety reasons, Mercedes-Benz recom-
mends that you only use wheel bolts of the
correct size which have been approved for
Mercedes-Benz vehicles.
The wear patterns on the front and rear tyres
differ, depending on the operating conditions.
Interchange the wheels before a clear wear
pattern has formed on the tyres. Front tyres
typically wear more on the shoulders and the
rear tyres in the centre.
Interchange the wheels every 5,000 km to
10,000 km depending on the degree of tyre
wear, provided that the vehicle has the same
size front and rear tyres. Do not reverse the
direction of tyre rotation.
Clean the contact surfaces of the wheel and
the brake disc thoroughly every time a wheel
is interchanged. Check the tyre pressure and,
if necessary, restart the tyre pressure loss
warning system. 154 Tyres and wheelsOperation
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