Mercedes Benz vehicles, particularly those made in 1998 and after, follow the Flexible Service System The Flexible Service System, or FSS, is a series of maintenance schedules that your Mercedes will need throughout the course of its lifetime. While the most commonly known and used are Service A and Service B, these intervals can vary due to the age and model of your car, sometimes reaching as far as H Service.
Typically, most Mercedes will need their Service A every 10,000-13,000 miles, alternating with Service B. You can expect to take your Mercedes in for Service A at 10,000 miles and each subsequent 20,000 miles, and for Service B at 20,000 miles and every subsequent 20,000 miles. The best way to time your Flexible Service System intervals is to follow your maintenance service indicator system.
Your Maintenance Service Indicator System will start preparing you for your service intervals around one month before you will need them with countdown messages dictating which service is needed and how many days you have to schedule it, i.e. "Service A in XX Days." You will also get notification by miles, i.e. "Service A in XX Miles."When the time for your service interval has arrived, you'll get a "Service A due now" message. If you go past the date and mileage specified for service, you'll get messages such as "Service A exceeded by xx Days/Miles." A tone or signal will also sound when you've exceeded the allotted time and mileage for your service interval.
Your Flexible Service System intervals could become more frequent if your Mercedes experiences the following conditions:
If you see an indicator for service intervals C-H, contact your local independent Mercedes Service and Repair shop for more information. Your technician will be able to run diagnostics to let you know precisely what all is included in that service level for your specific model.
The Mercedes Benz service plan for model years 1998 and newer follows a Flexible service system that features alternating service needs in the form of Service A and Service B. You may also see these appointments listed as Flex A and Flex B or Schedule A and Schedule B.
Service A is not as extensive as B Service. For most Mercedes models, your service indicator will recommend Service A at 10,000 miles and every subsequent 20,000 mile interval. The Service A maintenance appointment will include the following tasks:
In all SLK, CLK, C-Class, and E-Class models, you'll also need to replace the dust filter.
Service B, also know as Flex B, or Schedule B, is a service interval in the Mercedes Flexible Service System. You'll need to perform Service B when you 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 Service B maintenance appointment will include the following tasks:
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.