BMW Z4 Roadster Owner's Handbook Manual page 202

CONTROLS
Malfunction
Radar sensor
The system cannot be activated if the radar sen‐
sor is not correctly aligned, for example following
parking damage.
A Check Control message is displayed if the sys‐
tem has failed.
Have the system checked by a Service Partner
of the manufacturer or another qualified Service
Partner or a specialist workshop.
The system may have limited functionality if the
radar sensor detection range is partially covered,
for example by the number plate holder.
Camera
The function for detecting and responding to
stationary vehicles when approaching may be
limited in the following situation:
▷ During the camera calibration process imme‐
diately after vehicle delivery.
▷ Failure or soiling of the camera. A Check
Control message is shown.
Speed Limit Assist
Principle
When the systems in the vehicle (Speed Limit
Info, for example) detect a change in the speed
limit on the route, it is possible to adopt this new
speed limit value for the following systems:
▷ Manual Speed Limiter.
▷ Cruise Control.
▷ Active Cruise Control with Stop & Go func‐
tion.
The speed value is proposed as a new desired
speed for adopting. The relevant system must
be activated for the speed value to be adopted.
202
Driver Assistance Systems
Safety notes
The system does not relieve you of your per‐
sonal responsibility to assess the traffic situa‐
tion correctly. Due to system limitations, it can‐
not respond independently and appropriately in
all traffic conditions. There is a danger of acci‐
dents. Adapt your driving style to the traffic
conditions. Observe the traffic situation and in‐
tervene actively if the situation warrants it.
The desired speed may be accidentally set in‐
correctly or called up by mistake. There is a
danger of accidents. Adjust the desired speed
to the traffic conditions. Observe the traffic sit‐
uation and intervene actively if the situation
warrants it.
Overview
Buttons on the steering wheel
Button Function
Switching on/off and setting
Via iDrive:
1.
2.
3.
4.
5.
6.
Online Edition for Part no. xxx - X/18
WARNING
WARNING
Adopt the suggested speed manually.
Rocker switch:
Set the speed; see Cruise Control.
"CAR"
"Settings"
"Driver assistance"
"Driving"
"Speed Assistant"
"Info on speed limits"
Select the desired setting: