some of u guys have seen this dashboard test for the E46 and dont know how to do it
ok so here it is..
with the car turned off.. MUST BE!!!
1) Push the left button on the dash and keep it pushed
2) still pushing turn the ignition key till accesories, now release the button.
3) U will see in the screen (the left one i think) "test 1. "
4)fast, push the button once and it should go to "test 2."
5) 3 seconds after it should go to test "test 2.0"
6) push fast again..