systems can neither reduce the risk of
accident nor override the laws of physics.
Driving safety systems are merely aids
designed to assist driving. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in
good time. Always adapty
our driving style to
suit the prevailing road and weather
conditions and maintain asafe distance from
the vehicle in front. Drive carefully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tires and
the road surface. Please pay special
attention to the note son tires,
recommended minimu mtire tread depths,
etc. (Y page 312).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary,
snow chains. Only in this way will the
driving safety systems described in this
section work as effectively as possible. ABS (Anti-lock Braking System)
Important safety notes i
Observe the "Importan tsafety notes"
sectio n(Ypage 67). G
WARNING
If ABSi s faulty, the wheels could lock when
braking. The steerability and braking
characteristics may be severely impaired.
Additionally, further driving safety systems
are deactivated. There is an increased danger
of skidding and accidents.
Drive on carefully. Have ABS checked
immediately at a qualified specialist
workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Y page 239) and
display messages which may be shown in the
instrument cluster (Y page 215). ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
ABS works from a speed of about 5 mph
(8 km/h) upwards, regardless of road-surface
conditions. ABS works on slippery surfaces,
even if you only brake gently.
The yellow
!ABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running.
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking
situation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel
a pulsing in the brake pedal.
The pulsating brake pedal can be an
indication of hazardous road conditions, and
functions as a reminder to take extra care
while driving. BAS (Brake AssistS
ystem)
i Observe the "Important safety notes"
section (Y page 67). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergency braking
situations. If you depress the brake pedal
quickly, BAS automatically boosts the braking
force, thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. 68
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 24).Important safety notes
G
WARNING
The driver's concentration must always be
directed primarily at road traffic.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions permit
it to be done safely.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 feet (approximately 14 m) per
second. G
WARNING
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see
information about your driving conditions,
such as
R speed
R outside temperature
R warning/indicato rlamps
R malfunction/warning messages
R failure of any systems
Driving characteristics may be impaired. If you must continue to drive, do so with added
caution
.Contactana uthorized Mercedes-
Ben zCenter as soon as possible. G
WARNING
Malfunction and warning messages are only
displayed for certain systems and are
intentionally not very detailed. The
malfunction and warning messages are
simply a reminder with respect to the
operation of certain systems. They do not
replace the owner's and/or driver's
responsibility to maintain the vehicle's
operating safety. Have all required
maintenance services and safety checks
performed on the vehicle. Bring the vehicle to
an authorized Mercedes-Benz Center to
address the malfunction and warning
messages. G
WARNING
All categories of messages contain important
information which should be taken note of
and, where a malfunction is indicated,
addressed as soon as possible at an
authorized Mercedes-Benz Center.
Failure to repair the condition noted may
cause damage not covered by the Mercedes-
Benz Limited Warranty, or result in property
damage or personal injury.
For an illustration of the instrument cluster,
see (Y page 31). Displays and operation
Instrument lighting
The buttons for controlling the brightness are
at the top of the instrument cluster
(Y page 31).
Instrument cluster: if the light switch is set
to Ã, TorL, brightness control
takes ambient light into account. 200
Displays and operationOn-board computer and displays
Safety systems
Display messages Possible causes/consequences and
M Solutions
!÷
Unavailable See
Operator's Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE ®
, hill start assist and
ESP ®
trailer stabilization are temporarily unavailable.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster.
Possible causes are:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance, making slight steering
movements at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. !÷
Inoperative See
Operator's Manual ABS, ESP
®
, BAS, PRE-SAFE ®
, hill start assist and ESP ®
trailer
stabilization are unavailable due to a malfunction.
The $ (USA only)/J (Canada only),÷,åand!
warning lamps in the instrumen tcluster also light up.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident. Display messages
215On-board computer and displays Z
Display messages Possible causes/consequences and
M Solutions
÷
Inoperative See
Operator's Manual ESP
®
, PRE-SAFE ®
and BAS, hill start assist and ESP ®
trailer
stabilization are unavailable due to a malfunction.
In addition, the ÷andå warning lamps ligh tup in the
instrument cluster.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop. T!
÷
Inoperative See
Operator's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS,
PRE-SAFE ®
, hill start assist and ESP ®
trailer stabilization are
unavailable due to a malfunction.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The fronta nd rearwheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. $(USA
only)!(Canada
only)
Release Parking
Brake You are driving with the parking brake applied.
Awarning tone also
sounds.
X Release the parking brake. Display messages
217On-board computer and displays Z
Tires
Display messages Possible causes/consequences and
M Solutions
Tire Pressure
Check Tires The tire pressure loss warnin
gsystem has detected a significant
loss in pressure.
Aw arning tone also sounds.
G WARNING
With tire pressures which are too low, there is a ris kofthe
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 166).
X If there is a flat tire, inspect the tires (Y page 299).
X Check the tire pressures and, if necessary, correct the tire
pressure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 320).Check tires, then
restart Run Flat
Indicator The tire pressure loss warning system generated a display
message and has not been restarted since.
X
Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 320).Run Flat Indicator
Inoperative The tire pressure loss warning system is faulty.
X
Visit a qualified specialist workshop. Tire pressure
displayed after
driving for a few
minutes The tire pressure monitor is measuring the tire pressure.
X
Drive on.
The tire pressures appearint he multifunction displayafter you
have been driving for a few minutes. Tire Pressure
Monitor
Inoperative The tire pressure monitor is faulty.
X
Visi taqualified specialist workshop. Display messages
231On-board computer and displays Z
Display messages Possible causes/consequences and
M Solutions
Tire Pressure
Monitor
Inoperative No
Wheel Sensors The wheels mounted do no
thave a suitable tire pressure sensor.
The tire pressure monito ris deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Check Tire(s) The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
Aw
arning tone also sounds.
G WARNING
With tire pressures which are too low, there is a ris kofthe
following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 166).
X If there is a flat tire, inspect the tires (Y page 299).
X Check the tire pressure (Y page 320).
X If necessary, correct the tire pressure. Caution: Tire
Defect The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tire, there is a risk of the following hazards:
R A flat tire affects the ability to steer or brake the vehicle.
R You could lose control of the vehicle.
R Continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 166).
X If there is a flat tire, inspect the tires (Y page 299).232
Display messagesOn-board computer and displays
i
Determining the location of the vehicle on
a map is only possible if:
R GP Sreception is available
R the vehicle position can be forwarded to
the Customer Assistance Center
The mbrace system To adjust the volume during an mbrace call,
proceed as follows:
X
Press the WorX button on the
multifunction steering wheel.
or
X Use the volume controller of the audio
system/COMAND.
The mbrace system provides various
services, e.g.:
R automatic and manual emergency call
R Roadside Assistance call
R MB Info call
USA only: you can find information and a
description of all available features under
"Owners Online" at http://www.mbusa.com.
System self-test After you have switched on the ignition, the
system carries out a self-diagnosis.
Am
alfunction in the system has been
detected if one of the following conditions
occurs:
R the indicator lamp in theS OS button does
not come on during the system self-test.
R the indicator lamp in the ºRoadside
Assistance button does not light up during
self-diagnosis of the system.
R the indicator lamp in the EMB-Info call
button does not light up during self-
diagnosis of the system. R
the indicator lamp in one or more of the
following buttons continues to light up red
after the system self-diagnosis:
-SOS button
- Roadside Assistance call button º
- MB Info call button E
R the Tele Aid Inoperative or
Tele Aid
Not Activated message appears in the
multifunction display after the system self-
diagnosis.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. In the event of an emergency,
assistance must be summoned by other
means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Mercedes-Benz Customer Assistance
center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-888-990-9007
R Canada: Customer Service at
1-888-923-8367
Emergency call Important safety notes
G
WARNING
If the indicator lamp in the SOS button is
flashing continuously and there was no voice
connection to the Response Center
established, then the mbrace system could
not initiate an emergency call (e.g. the
relevant cellular phone network is not
available).
The message Call Failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be
summoned by other means.
! Alicense agreement must exis tinorder
to activate the mbrace service .Ensure that
your system is activated and ready for use, 272
FeaturesSto
wage an d features