Mercedes-Benz M-Class Owner's Manual page 69

Driving safety systems
66
G
WARNING
If EBD has malfunctioned, the braking system
remains available with full brake boosting
effect. However, the rear wheels can still lock,
e.g. under full braking. This could cause you
to lose control of your vehicle and cause an
accident. You should therefore adapt your
driving style to the different handling charac-
teristics.
Observe the notes on warning and indicator
X
lamps ( page 286) as well as display mes-
Y
sages ( page 256).
Y
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function (
hill start assist (
information, see Driving tips (
®
PRE-SAFE Brake
®
PRE-SAFE Brake is only available in vehicles
with DISTRONIC PLUS.
i
Observe the "Important safety notes" sec-
tion ( page 61).
Y
®
PRE-SAFE Brake can help you to minimise
the risk of a frontal collision with a vehicle
ahead or reduce the effects of such a colli-
sion. If PRE-SAFE
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.
This function will issue a warning at speeds of
around 30 km/h or more if:
for a period of several seconds, the dis-
R
tance to the vehicle in front is too short for
the speed at which you are travelling. The
page 187) and
Y
page 141). For further
Y
page 162).
Y
®
Brake has detected a risk
· distance warning lamp then lights up
in the instrument cluster.
you are rapidly approaching the vehicle in
R
front. An intermittent warning tone will
then sound and the · distance warning
lamp will light up in the instrument cluster.
Brake immediately in order to increase the
X
distance from the vehicle in front.
or
Take evasive action provided it is safe to do
X
so.
If the driver and passengers have fastened
their seat belts, PRE-SAFE
can also perform the following at speeds of
above approximately 30 km/h:
brake the vehicle automatically from a
R
speed of up to approximately 200 km/h
trigger preventative passenger protection
R
measures (PRE-SAFE
Due to the nature of the system, particularly
complicated driving conditions may cause
unnecessary warnings or the unnecessary
intervention of PRE-SAFE
you can either depress the accelerator pedal
further, activate kickdown or release the
brake pedal.
The braking action of PRE-SAFE
ended automatically if:
you drive slower than approximately
R
15 km/h.
you manoeuvre to avoid the obstacle.
R
there is no longer any danger of a rear-end
R
collision.
there is no longer an obstacle detected in
R
front of your vehicle.
If you have activated DSR (
®
SAFE brake is deactivated.
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.
At speeds up to approximately 70 km/h,
®
PRE-SAFE Brake may also detect stationary
®
Brake can also
®
) ( page 45)
Y
®
Brake. To end this,
®
Brake is
page 220), PRE-
Y