Ets/4Ets; General Notes - Mercedes-Benz M-Class Operator's Manual

20 mph (30 km/h) and uses the radar sensor
system to evaluate the traffic situation.
With the help of Adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
Should you approach an obstacle and
Adaptive Brake Assist has detected a risk of
collision, Adaptive Brake Assist calculates the
braking force necessary to avoid a rear-end
collision. Should you apply the brakes
vigorously, Adaptive Brake Assist will
automatically increase the braking force to a
level suitable for the traffic conditions.
Keep the brake pedal depressed until the
X
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
you release the brake pedal
R
there is no longer any danger of a rear-end
R
collision
no obstacle is detected in front of your
R
vehicle
Adaptive Brake Assist is then deactivated.
If Adaptive Brake Assist requires particularly
high brake pressure, preventive passenger
protection measures (PRE-SAFE
deployed simultaneously.
Up to vehicle speeds of around 155 mph
(250 km/h), adaptive Brake Assist is capable
of reacting to moving objects that have
already been recognized as such at least once
over the period of observation. Adaptive
Brake Assist does not react to stationary
obstacles.
If Adaptive Brake Assist is not available due
to a malfunction in the radar sensor system,
the brake system remains available with full
brake boosting effect and BAS.
In particular, the detection of obstacles can
be impaired if there is:
dirt on the sensors or anything else
R
covering the sensors
snow or heavy rain
R
interference by other radar sources
R
there are strong radar reflections, for
R
example in parking garages
a narrow vehicle traveling in front, e.g. a
R
motorbike
a vehicle traveling in front on a different line
R
relative to the center of your vehicle
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.
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ESP

General notes

i
Observe the "Important safety notes"
section (
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ESP monitors driving stability and traction,
i.e. power transmission between the tires and
the road surface.
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If ESP
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to
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) are
keep the vehicle on the desired course within
physical limits. ESP
pulling away on wet or slippery roads. ESP
can also stabilize the vehicle during braking.
ETS/4ETS (Electronic Traction System)
ETS/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 (
Driving safety systems
(Electronic Stability Program)
page 66).
Y
detects that the vehicle is deviating
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assists the driver when
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.
page 248).
Y
71
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.
Z