BMW E46 3-Series Clock and Radio Reset Procedure DIY, How To
This answer is applicable for many BMWs in addition to the one listed below.
car year: 2002
car model: 325i
I need to reset code for radio after battery installation & how to reset clock.
The radio in the E46 chassis (3-series 99-05, 323i, 325i, 328i, 330i, M3) does not require a security code if the power is interrupted (as the earlier models do).
The instructions for resetting the clock are in the owner’s manual. If you need a replacement owner’s manual, we can offer this to you.
Procedure, in short:
1) Key in position 1 or 2
2) Use the reset button that is to the right of the tachometer … turn clockwise to increase time … turn counter-clockwise to set-back time.
3) Pressing the button changes from 12-hr time to 24-hr time