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184
Driving and Driving Safety
Possible distance settings
Automatic braking to a stop
If the vehicle in front stops, adaptive cruise control
will slow your vehicle down to a stop provided this
is possible within the control limits of the system.
The display
lights up on the instrument panel.
The vehicle is actively held at a stop.
For information on the HOLD function:
f
Please see the chapter “HOLD FUNCTION:
DRIVE-OFF ASSISTANT AND STANDSTILL
MANAGEMENT” on page 206.
Note
Depending on the traffic flow, e.g. slow moving
traffic, stopping is initiated by a slow crawling
phase which ends in vehicle standstill.
Caution!
Brake pedal feels different. When adaptive
cruise control is operating normally or when
the HOLD function is active, the brake pedal
may feel different and you may hear
hydraulic noises.
This behavior is normal for the system.
It is not a fault.
Driving off again
The vehicle can be driven off again after being
stopped and speed and distance control will be
resumed, depending on the operating state of the
adaptive cruise control system.
For information on the operating states of the
adaptive cruise control system:
f
Please see the chapter “OPERATING STATES
WHEN ADAPTIVE CRUISE CONTROL IS
SWITCHED ON” on page 182.
Adaptive cruise control active
1. Press the control stalk on the steering wheel
up (position
4
,
RESUME
).
2. Briefly press the accelerator pedal.
Your vehicle drives on automatically.
Note
Your vehicle will not drive off if the vehicle
detected in front is stationary.
Adaptive cruise control is ready
Automatic speed and distance control can only
be resumed when your vehicle is moving.
1. Drive off normally.
2. Press the control stalk on the steering
wheel up (position
4
,
RESUME
).
or
Set or change the desired speed.
Suitable for speedy driving in lines of
traffic. The time headway is 1 second.
This corresponds to 36 yd. (33 meters)
at a speed of 75 mph (120 km/h).
Suitable for driving comfortably in lines
of traffic. The time headway is
1.3 seconds. This corresponds to
47 yd. (43 meters) at a speed of
75 mph (120 km/h).
Preset distance
Corresponds to the general
recommendation of the road traffic
safety regulation (“two seconds time
headway”). The time headway is
1.8 seconds. This corresponds to
66 yd. (60 meters) at a speed of
75 mph (120 km/h).
Suitable for driving on country roads.
The time headway is 2.3 seconds.
This corresponds to 63 yd. (58 meters)
at a speed of 56 mph (90 km/h).