You access the panel from underneath the floor of your trunk. The batter will be on the right bottom hand side under a panel of plastic. It will be secured by two screws, and if your car is like mine, you will need a flat head screw-diver to loosen them. Once the screws are loose, the panel is secured to the interior right wall of your car through a trench-like system, you need to sink the back panel of the plastic, pull out.
To remove a starter from a 2004 BMW 325ci, you need to first remove the screws from the top of the motor. You will see a tube looking device about 3 inches from the top, on the left. This needs to be unscrewed, and the wires should come out with it.
i believe if its anything like my 2002 BMW 325ci that it would be in the trunk on the right. remove the black thing on the right (there should be 2 little plastic bolt looking things holding it down).
The battery can be found in the trunk, under boot to the right hand side under the plastic cover. There is a positive terminal located in the engine bay on the top left hand side.
325CI
cubic
it has 214 horsepower
inside the glove box
The keys that BMW provides are sealed...they make them that way so you have to go to the dealership to buy a new one. I followed this diy (link below) and it worked for me on my 2001 325Ci coupe.
ralf schomp
Check your brakes
On the dashboard P.s. It is the BMW 325ci
right behind the back seat