Operation Manual

Assist systems
General information

Introduction
This chapter contains information on the following subjects:
Radar sensor 135
WARNING
The following general information regarding the use of assistance systems
must be observed.
■
The assistance systems only serve to support and do not relieve the driv-
er of the responsibility for driving the vehicle.
■
The increased safety provision, as well as the increased occupant protec-
tion provided by the assistance systems must not tempt you to take risks -
risk of accident!
■
Adjust the speed and driving style to the current visibility, weather, road
and traffic conditions.
■
The assistance systems have physical and system-related limitations. For
this reason, the driver may experience some undesired or delayed system
responses in certain situations. You should therefore always be alert and
ready to intervene!
■
Only activate, deactivate or set the assistance systems so that you have
the vehicle fully under control in every traffic situation - risk of accident!
Radar sensor
Fig. 154
Mounting location of the radar
sensor
Read and observe on page 135 first.
The radar sensor » Fig. 154 (From here on referred to as sensor) is used to as-
sess the traffic situation in front of the vehicle.
The sensor can distinguish objects by radiating and receiving electromagnetic
waves.
The sensor is a component of the ACC » page 150 and Front Assist
» page 155 systems.
The sensor function may be impaired in the events of one of the following.
▶
The sensor is soiled by mud, snow and the like.
▶
The area in front and around the sensor is obscured by labels, auxiliary lights
and similar.
▶
When visibility is poor, (e.g. fog, heavy rain, thick snowfall).
If the sensor is covered or dirty, the corresponding message appears in the in-
strument cluster display for the ACC system » page 155 or Front Assist system
» page 157.
WARNING
■
If you suspect that the sensor is damaged, deactivate the ACC system
» page 150 and Front Assist system » page 155. Have the sensor checked
by a specialist garage.
■
The sensor can become misaligned by collisions or by damage to the front
of the vehicle, the wheel arch or the underside of the vehicle. This can lead
to impaired function of the sensor - risk of accidents! Have the sensor
checked by a specialist garage.
■
The area in front and around the sensor should not be obscured by labels,
auxiliary lights and similar. 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.
Braking and stabilisation systems

Introduction
This chapter contains information on the following subjects:
Stability Control (ESC)
136
Anti-lock braking system (ABS) 136


135
Assist systems