BMW X3 Owners Manual: Interval mode or rain sensor
The concept The rain sensor automatically controls the time between wipes depending on the intensity of the rainfall. The sensor is located on the windshield, directly behind the interior rearview mirror.
Activating/deactivating
Press button on the wiper lever.
Wiping is started. If the vehicle is equipped with a rain sensor: LED in wiper lever lights up.
When wipers are frozen to windshield, wiper operation is deactivated.
Deactivate the rain sensor in car washes
Deactivate the rain sensor when passing through an automatic car wash; otherwise, unintentional wiping can cause damages.
Setting the frequency or sensitivity of the rain sensor
Turn the thumbwheel.
Switching the wipers on/off and brief
wipe
Hints
Do not activate wipers if frozen to windshield
Do not switch on the wipers if they are frozen
to the windshield; otherwise, the wiper blades
...
Clean the windshield, headlights
Pull the wiper lever towards you.
The system sprays washer fluid on the windshield
and activates the wipers briefly.
In addition, the headl ...
Other materials:
BMW X3 Owners Manual > Lane departure warning: System limits
The system may not be fully functional in the
following situations:
In heavy fog, rain or snowfall.
In the event of missing, worn, poorly visible,
merging, diverging, or multiple lane
markings such as in construction areas.
When lane markings are covered in snow,
ice, dirt or water.
...