About Service A
Mercedes Benz has grouped the types of maintenance your car needs into two service groups. They are referred to as Service A and Service B. Each service is the chance to catch any repairs for your Mercedes before the issue becomes serious. Service A is the more basic service and B is more extensive. The computer in your Mercedes dashboard will remind you of Service A at 10,000 miles and every subsequent 20,000 mile interval.
Service A Includes
Change engine oil and filter
Check the warning and indicator lamps and horn for functionality
Check the windshield/headlamp wiper and washer systems for functionality and fluid levels
Ensure that seat belts are functioning correctly
Inspect tires and check tire pressure (including the spare tire)
Inspect brake pad thickness and disc condition
Check and correct all fluid levels
Reset your vehicle’s Flexible Service System (FSS) counter
Cabin filters
In all SLK, CLK, C-Class, and E-Class models, the interior cabin dust filter should be replaced.