BMW 550i xDrive Gran Turismo 2010 User Manual
Page 233
Snow chain detection*
The concept
When using snow chains, you should set
whether you are driving with or without snow
chains via the iDrive.
The snow chain detection system supports you
by automatically showing the detected state on
the Control Display.
When snow chains are in use, the rear axle steer‐
ing of the Integral Active Steering* is deacti‐
vated automatically.
At speeds above the maximum allowable speed
with snow chains of 30 mph/50 km/h, the rear
axle steering is activated again automatically.
Activating the status
1.
"Settings"
2.
"Tire chains"
3.
"Tire chains installed"
Automatic detection
If functioning properly:
▷
Snow chains are mounted. The setting is not
activated .
After you drive a short distance, the mes‐
sage is shown on the Control Display and the
status is activated automatically.
Confirm the automatic activation.
▷
Snow chains are not mounted. The setting
is activated
.
At speeds above 30 mph/50 km/h, a warning
lamp lights up and a message is displayed.
Deactivate the status manually.
If not functioning properly:
▷
Snow chains are mounted. The setting is not
activated .
A message does not appear on the Control
Display.
The automatic detection system is malfunc‐
tioning. Activate the status manually.
Activating/deactivating rear axle
steering
If the status indicating that snow chains are in
use is activated, the rear axle steering is deacti‐
vated automatically.
At speeds above 30 mph/50 km/h, the rear axle
steering is activated again, even though snow
chains are in use.
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