When it is necessary to check the braking system of your motorcycle immediately?

The selected combination of options is correct because it covers all essential checks for ensuring motorcycle braking safety.

1. Checking if the brake fluid level has dropped significantly is crucial because low brake fluid can indicate a leak or that the brakes are worn, affecting their performance and safety.

2. Not feeling a pressure point when pulling the brake lever suggests a potential failure in the brake system, which could mean that brakes may not engage properly, posing a serious safety risk.

3. If the brake control light illuminates while driving, it serves as a warning that there is a malfunction or issue within the braking system that needs immediate attention.

In German traffic regulations, ensuring that your vehicle is safe and roadworthy is paramount, and these checks are vital for maintaining braking efficiency, thus protecting the rider and other road users. Always perform these checks before riding to comply with safety standards and regulations.