Controls and features -> Central locking system for your BMW 3 Series 1997-2006

Opening and closing  
30 Keys  
Central locking system  
2 Spare master key – for storage in a  
safe place, such as in your wallet.  
This key is not intended for constant  
use  
The concept  
The central locking system engages  
and releases the locks on the  
>doors  
3 Door and ignition key – the locks for  
the luggage compartment lid and the  
glove compartment cannot be oper-  
ated with this key. This is useful for  
valet parking, for example  
>luggage compartment lid  
>fuel filler door and  
>glove compartment.  
The central locking system is ready for  
operation whenever the driver's door is  
closed.  
The central locking system can be  
operated  
The key set  
>from outside via the door lock and  
using the remote control  
>from inside via the central locking  
system button.  
1 Master keys with remote control unit  
– determine the functions of the Key  
Memory, refer to page 65.  
You can mark the individual keys for  
subsequent identification by apply-  
ing the colored decals that you  
received when accepting delivery of  
your vehicle  
If it is operated from inside, the fuel  
filler door will not be locked, refer to  
page 34.  
Operating it from outside simulta-  
neously activates the anti-theft system,  
which prevents the doors from being  
unlocked via the door lock buttons or  
the door release handles. The alarm  
system is also armed or disarmed.  
There is an extended-life battery  
in every master key with remote  
control that is charged automatically in  
the ignition lock as you drive.  
For this reason, if you have a master  
key with remote control that is other-  
wise not used, use that key at least  
once every year while driving for an  
extended period to charge the bat-  
tery.<  
The central locking system unlocks  
automatically in the event of an acci-  
dent. In addition, the hazard warning  
flashers and interior lamps come on.