Mercedes-Benz Service A and Service B: What’s the Difference?

When it comes time to service your Mercedes-Benz, you may notice your dashboard reminding you of Service A or Service B. While both are part of Mercedes-Benz’s factory-recommended maintenance schedule, they serve different purposes depending on your vehicle’s mileage and age. 

Understanding the difference helps ensure your vehicle continues to perform at its best for years to come. 

What is Mercedes-Benz Service A? 

Service A is the first routine maintenance your vehicle will receive. It is required at 10,000 miles or one year, whichever comes first, and is then performed approximately every 20,000 miles or two years thereafter. 

This service focuses on routine maintenance that helps keep your Mercedes-Benz performing as intended. 

Service A includes: 

• Synthetic motor oil replacement 

• Oil filter replacement 

• Cleaning of the visible area of the water deflector 

• Brake component inspection 

• Fluid level checks and corrections 

• Tire inflation check and correction 

• Coolant level check and correction 

• Windshield washer system fluid check and correction 

• Inspection of engine compartment air flap 

• Inspection of engine hood catch, safety catch, and hinges 

• Wiper blade replacement (on select models) 

• Key battery replacement 

• Maintenance counter reset 

What is Mercedes-Benz Service B? 

Service B is performed at 20,000 miles or at two years and alternates with Service A as part of the Mercedes-Benz maintenance schedule. 

This service is more comprehensive and includes everything from Service A plus additional inspections and replacements.  

Service B includes: 

• Synthetic motor oil replacement 

• Oil filter replacement 

• Cleaning of the visible area of the water deflector 

• Activated charcoal combination filter replacement 

• Dust filter replacement 

• Brake fluid replacement 

• Brake test performance 

• Brake component inspection 

• Fluid level checks and corrections 

• Tire inflation check and correction 

• Coolant level check and correction 

• Windshield washer system fluid check and correction 

• Inspection of engine compartment air flap 

• Inspection of engine hood catch, safety catch, and hinges 

• Inspection of driveshaft flexible discs 

• Inspection of poly-V belt condition 

• Inspection of vehicle underside for damage and leaks 

• Inspection of visible engine components for damage and leaks 

• Inspection of front and rear axles and axle ball joints 

• Inspection of steering and rear axle tie rods 

• Inspection of suspension struts, shock absorbers, and springs 

• Wiper blade replacement (on select models) 

• Key battery replacement 

• Maintenance counter reset 

Why Both Services Matter 

Service A and Service B work together to keep your Mercedes-Benz running like new. By alternating between the two, your vehicle receives the right care at the right time, helping maintain smooth operation, efficiency, and overall reliability.   

Schedule a service appointment through our online scheduler.

For any questions or assistance in scheduling your appointment, contact us at 281-207-1500.