Reset problem after servicing on BMW x5 Diesel

For the maintenance indicator, try this: turn on the ignition without starting the engine, press and hold the odometer reset button until the service menu appears, then use the button to scroll to the brake pad reset option and hold it to reset. For the spongy brakes, check for air in the brake lines and ensure they are properly bled. If the issue persists, it could be a sign of a more serious problem, and I recommend having a mechanic inspect it for safety reasons. Let me know how it goes or if you have further questions!