Interior lighting
- Thread starter Jack0495
- Start date
Make sure the switch for the bulb is in the right position [try them all] - and double check that fuse! 
Don't know which year/model you have but the wiring diagram can be found here under Interior light 6330.3 http://wedophones.com/Manuals/BMW/1998 BMW Z3 - M Roadster Electrical Troubleshooting Manual.pdf
The selector switch is 3 position i.e manual (upper depressed), off in central neutral position, or auto (lower position depressed).
In auto the light will illuminate if either door is opened or central locking is deactivated using fob (or at least that's how mine works).
When you exit the car and the doors are closed the light will stay on until central locking is activated or a 15? min time out.
Does it work in manual position?
The selector switch is 3 position i.e manual (upper depressed), off in central neutral position, or auto (lower position depressed).
In auto the light will illuminate if either door is opened or central locking is deactivated using fob (or at least that's how mine works).
When you exit the car and the doors are closed the light will stay on until central locking is activated or a 15? min time out.
Does it work in manual position?
Probably need to get voltmeter on bulb contacts and then switch to see if you are getting any voltage there. The live to the switch should be permanent Hot for manual operation.