The Front Assist (hereinafter referred to as the system) warns you of the dan-
ger of a collision with a vehicle or another obstacle in front of the vehicle, and
tries to avoid a collision or mitigate its consequences by automatically applying
the brakes where necessary.
The area in front of the vehicle is monitored by a radar sensor
page 106.
WARNING
The general information relating to the use of assistance systems must
■
be observed
» page 96,
in section Introduction.
The system does not respond to crossing or oncoming objects.
■
CAUTION
In case of failure of more than one brake light on the vehicle or on the electri-
cally connected trailer, the system becomes unavailable.
Radar sensor
Read and observe
and
The radar sensor
» Fig.
129(hereinafter referred to as the sensor) may detect
objects by emitting and receiving electromagnetic waves.
The sensor function may be impaired in the events of one of the following.
▶
The sensor cover is soiled (e.g. with mud, snow and the like).
▶
The area in front of and around the sensor cover is obscured (e.g. by labels,
auxiliary headlights and the like).
▶
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is dirty or covered, the corresponding message appears on the
display of the instrument cluster
106
Driving
» Fig. 129
Fig. 129
Installation location of the radar
sensor
on page 106 first.
» page
108, Malfunctions.
WARNING
If you suspect that the sensor is damaged, deactivate the system. Have
■
the sensor checked by a specialist garage.
A collision or damage in the front or lower area of the vehicle could affect
■
the sensor function - there is risk of accident! Have the sensor checked by
on
a specialist garage.
Do not cover the area in front of and around the sensor cover. This can
■
lead to impaired function of the sensor - risk of accidents!
CAUTION
Remove the snow with a brush and the ice with a solvent-free de-icer.
Operation
Read and observe
The system support is provided in the following manner.
▶
Alerts you about a dangerous proximity to the vehicle ahead.
▶
Warns you of an impending collision.
▶
Assists with a brake action triggered by the driver.
▶
If the driver fails to respond to a detected danger, an automatic braking ac-
tion is performed.
The system can work only if the following basic conditions are met.
The system is activated.
TCS is activated
» page
The vehicle is travelling forwards at a speed of more than approx. 5 km/h.
Note
The system can be impaired or may not be available, for example when driving
in "sharp "curves or with an ESC engagement
and
on page 106 first.
97.
» page
97.