E46 Hidden OBC functions

[FesterNath]

Found this instruction while wasting time on youtube. Anyone know anything about it?

Instructions to access the hidden OBC functions:
1. Hold Trip Reset while turning ignition key to on position
2. OBC should show "Test"
3. Use Trip Reset to select function 19.0 that unlocks all the features
3. Wait for display to show "Off"
4. Depress Trip Reset for 1/4 second and release it
5. With no delay press Trip Reset several times to select one of the following functions.

Select 7.3 + Vehicle speed / Current Speed in km/hour

http://uk.youtube.com/watch?v=-aCyp1fONmw&feat...