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Safety and Security
Driving safety systems
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost, thereby poten-
tially reducing the braking distance.
̈ Apply continuous full braking pressure
until the emergency braking situation is
over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the
brakes function again as normal. The BAS
is then deactivated.
For more information, see “Practical hints”
section (
୴ page 544).
BAS Plus*
BAS Plus operates in emergency braking
situations and uses radar sensors to as-
sess the traffic situation.
When you step quickly on the brake pedal
in an emergency braking situation,
BAS Plus automatically regulates the
brake pressure to a level that is suitable for
the traffic situation.
If BAS Plus requires a particularly high
brake pressure, PRE-SAFE
®
is activated at
the same time.
̈ Step on the brake pedal until the emer-
gency braking situation is over.
During this process, ABS prevents the
wheels from locking up.
Once you take your foot off the brake ped-
al or when there is no longer a risk of colli-
sion, the brake pedal functions again as
usual. BAS Plus is deactivated.
EBP
The Electronic Brake Proportioning (EBP)
enhances braking effectiveness by allow-
ing the rear brakes to supply a greater pro-
portion of the braking effort in straight line
breaking without a loss of vehicle stability.
Warning! G
When the BAS is malfunctioning, the brake
system is still functioning normally, but with-
out the additional brake boost available that
BAS would normally provide in an emergen-
cy braking maneuver. Therefore, the braking
distance may increase.
Warning! G
The BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking efficiency beyond that af-
forded by the condition of the vehicle brakes
and tires or the traction afforded. The BAS
cannot prevent accidents, including those
resulting from excessive speed in turns, fol-
lowing another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful
driver can prevent accidents.
The capabilities of a BAS equipped vehicle
must never be exploited in a reckless or dan-
gerous manner which could jeopardize the
user’s safety or the safety of others.