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Intelligent Technology 219
Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical Data
The Brake Assist is activated by the very quick operation of the brake
pedal. In such cases, a much greater braking pressure exists than during
a normal brake application. This makes it possible, even with a relatively
low resistance of the brake pedal, to produce an adequate pressure in the
brake system in the shortest possible time, which is required for maximum
deceleration of the car. You must apply the brake pedal firmly and hold it
in this position in order to achieve the shortest possible braking distance.
The Brake Assist is able to help you achieve a shorter braking distance in
emergency situations by rapidly producing the pressure required in the
brake system. It fully exploits the attributes of the ABS. After you release
the brake pedal, the function of the Brake Assist is automatically switched
off and the brakes operate in the normal way.
The Brake Assist is part of the ESP system. If a fault occurs in the ESP,
the Brake Assist function is also not available. Further information on the
ESP ⇒ page 213.
WARNING
• The Brake Assist is also not able to overcome the physical
limits of your car in terms of the braking distance required.
• Adapt your speed to the conditions of the road surface and to
the traffic situation.
• The increased safety offered by the Brake Assist must not tempt
you to take a greater safety risk than otherwise.
Uphill-Start off-Assist*
The uphill-start off-assist makes it much easier to start off on steep hills.
The system assists a start off by holding the brake pressure produced by
the brake pedal actuation for approx. 2 seconds after releasing the brake
pedal. The driver can therefore move his foot from the brake pedal to the
accelerator pedal and start off on the slope, without having to actuate the
handbrake. The brake pressure drops gradually the more you operate the
accelerator pedal. If the vehicle does not start off within 2 seconds, it starts
to roll back.
The uphill-start off-assist is active in the event of a 5% slope, if the vehicle
door is closed. It is always active on slopes when in forward or reverse
start off. When driving downhill, it is inactive.
Electromechanical power steering
The power steering enables you to steer the vehicle with less physical
force.
With the electromechanical power steering, the steering assist is automat-
ically adapted to the speed and to the steering angle.
It is still possible to fully steer the vehicle if the power steering fails or if the
engine is not running (vehicle being towed in). The only difference is that
greater physical effort is required.
If there is a fault in the power steering, a red or yellow warning light
lights up in the instrument cluster ⇒ page 33.
WARNING
Contact your specialist garage if the power steering is defective.
s24s
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book
Page
219
Thursday
,
November
24
,
2005
12:27
PM
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