How do you drain water from the spare tire compartment of my 1998 BMW 740iL?

To drain water from the spare tire compartment of your 1998 BMW 740iL, first, remove the spare tire and any tools or covers in the compartment. Look for drainage holes at the bottom of the compartment; these may be clogged with debris. If you find them, use a small tool or your fingers to clear any obstructions, allowing the water to flow out. If necessary, you can gently tilt the car or use a sponge to soak up any remaining water.