If it is equipped with the automatic transmission - the "P" indicator on your gear selector will remain lit for 16 minutes after shutdown. After the 16 minutes has passed, you'll notice the lamp has gone out. That is your indicator that the vehicle has entered "sleep" mode (when the light is out).
To check the sleep mode on a BMW X3, you can look at the vehicle's dashboard display. When in sleep mode, the display typically dims or goes off entirely after a period of inactivity. Additionally, you can verify if the vehicle is in sleep mode by attempting to access features like the navigation or infotainment system; if they do not respond, the car is likely in sleep mode. Finally, refer to the owner's manual for specific details related to your model year.
Check out the realted link for some advice on how to reset the computer in your 2003 BMW 325I computer.
you dont it never needs to b changed
check the glove compartment, i think BMW put a lever in there that will open the back(not sure though)
Where is the starter located on my 2003 BMW 325i
The 2003 BMW M5 has a V8 engine.
The 2003 BMW M3 has 24 valves.
The 2003 BMW X5 has 24 valves.
The 2003 BMW M5 has 32 valves.
The 2003 BMW Z4 has 24 valves.
Check Your Tranny Fluid.
The 2003 BMW M3 is a gas-powered vehicle.