I tried to change out my battery myself and accidentally dropped a piece of the bracket that secures the battery inside the engine. It's currently sitting at the bottom of the engine block on a steel tray where it's impossible to reach. What is the simplest way to retrieve this bolt myself? If it's not possible to do this myself, is it safe to drive the car to the repair shop with a loose bolt inside the engine block, and the battery only partially secured? Any advice would be great at this point. Thanks.
Inside the engine? For Petes' sake how did you get a screw inside a sealed engine? Was the valve cover off? Do you mean on the subframe or on a part of the bodywork? A magnet on a telescoping wand should do the trick.