Mercedes Benz Flex B Maintenance

Checklist and Scheduling for Service B

Service B Schedule for your Mercedes-Benz

Mercedes-Benz Service B is a comprehensive maintenance service that includes a set of recommended tasks to ensure the continued performance and longevity of your vehicle. The specific tasks may vary slightly depending on the model, year and configuration of your Mercedes-Benz vehicle.

You'll need to perform Service B when your service indicator system alerts you that it is necessary, typically at 20,000 miles and every 20,000 mile interval after that. Service B alternates with Service A, as well as a few other service interval options. The following are common tasks typically performed during a Service B appointment:

  • Synthetic Motor Oil Replacement: The engine oil and filter are changed using the manufacturer-recommended synthetic motor oil.
  • Fluid Level Checks and Corrections: The technician will inspect and adjust fluid levels as necessary, including coolant, brake fluid, power steering fluid, and windshield washer fluid.
  • Tire Inspection and Rotation: The tires are visually inspected for wear, and a rotation may be performed to ensure even tire wear.
  • Brake Component Inspection: The braking system, including brake pads, discs, and fluid, is inspected for wear and proper functioning.
  • Cabin Air Filter Replacement: The cabin air filter, which helps maintain air quality inside the vehicle, is replaced if necessary.
  • Engine Air Filter Replacement: The engine air filter, which helps filter the air entering the engine, is replaced if necessary.
  • Seat Belts: Checked to ensure that the seat belts are functioning correctly.
  • Throttle Linkage: lubricate and inspect the throttle linkage.
  • Steering Components: checks steering play for proper functionality.
  • Resetting Maintenance Counter: The maintenance counter or indicator is reset, acknowledging that the Service B has been completed.
  • Leakage: Check major components for leakage.
  • Windshield/headlamp: Check wiper and washer systems for functionality.
  • Additional Checks: Depending on the model, there may be additional checks or inspections specific to your vehicle, such as inspecting the battery, lights, horn, windshield wipers, belts, hoses, suspension components and exhaust system.

In all SLK, CLK, C-Class, and E-Class models, as well as in S-Class and SL-Class models without the active charcoal filter, you'll also need to replace the dust filter.

Further Maintenance For Your Mercedes

Flex schedules vary depending on the class and model year of your Mercedes. Service A and Service B will be the Flex task lists that you will use most often. To learn more about the Mercedes Flex Service System and other Mercedes repair and maintenance topics, please see our list of Mercedes Service, Maintenance, and Repair articles.