What is service b in Mercedes-Benz?

Service B in Mercedes-Benz is a scheduled maintenance program designed for vehicles that typically occurs approximately every 20,000 miles or once a year, depending on driving conditions. It includes a comprehensive inspection of key vehicle systems, fluid replacements, and the replacement of the cabin air filter. Service B aims to ensure optimal performance and safety, along with adherence to warranty requirements. Owners are alerted when it's time for Service B through the vehicle's onboard maintenance system.