Test Functions

The test functions are useful for troubleshooting without the BMW diagnosis system. The test functions are displayed in the head-up display.

NOTE: Test function replaced when driving At road speeds greater than 5 km/h, a warning given by the Active Cruise Control or a Check-Control message will replace the test function.

When terminal R or terminal 15 is ON, the test functions will be called up if the button for switching the head-up display is pressed and held for more than 10 seconds. When the first test function is displayed, other test functions can be activated by briefly pressing the button.

NOTE: Enabling and disabling the test functions Some test functions are not freely accessible, but rather have to be enabled. Enablement is only possible in the test function "Enable". An enablement is effected by entering the sum of the last 5 digits of the vehicle identification number. Test functions are disabled again when they are ended.

A test function is, e.g. the system test, which comprises the following sequence:

The projection display cover panel is folded out of the beam.
The light source lights up with maximum brightness.
A series of test patterns appears in the head-up display to check for optical errors. The test patterns make it possible to test readability (focus) and colour reproduction. Test patterns contain:
- Lines
- Colours
- Characters
- Symbols
The light source is deactivated.
The projection display cover panel is folded into of the beam.

The test functions are terminated by the following conditions:

Terminal R OFF
Button pressed for longer than 2 seconds
Test function "Reset" called up