What are the Differences Between Service A and B?

Person Changing Car Tire

After investing in a luxury Mercedes-Benz vehicle, protecting their purchase is likely in the forefront of Springfield drivers’ minds. You’ll often hear talk of two important service intervals: Mercedes-Benz Service A and Mercedes-Benz Service B. Your vehicle’s driver information center may have recently alerted you that you’re due for one of these services, but what separates them from each other and what specific service tasks do they encompass? Mercedes-Benz of Eugene answers all of your most pressing questions to help you get the most out of your new or used Mercedes-Benz vehicle, below!


What is the Mercedes-Benz Service A Checklist?

Mercedes-Benz Service A* is performed after one year or 10,000 miles, whichever comes first. The services carried out may vary depending on the specific model year of your vehicle, but Service A includes the following services:

  • Synthetic Motor Oil Replacement**
  • Oil Filter Replacement**
  • All fluid level checks and corrections are dependent on factory-recommended service intervals for your vehicle’s year and model
  • Tire inflation check and correction
  • Brake component inspection
  • Reset maintenance counter
  • Adhere to all required elements listed by model year and specific model as indicated on the corresponding service sheet for Mercedes-Benz Maintenance Systems in the USA

What’s the Mercedes-Benz Service B Checklist?

Mercedes-Benz Service B* is performed at 20,000 miles or 2 years, whichever comes first. During Service B, the following services are carried out:

  • Synthetic Motor Oil Replacement**
  • Oil Filter Replacement**
  • All fluid level checks and corrections are dependent on factory-recommended service intervals for your vehicle’s year and model
  • Tire inflation check and correction
  • Brake component inspection
  • Reset maintenance counter
  • Cabin dust/combination filter replacement
  • Brake flush & fluid renewal (additional $205.00 charge) *Recommended by Mercedes-Benz during this interval
  • Adhere to all required elements listed by model year and specific model as indicated on the corresponding service sheet for Mercedes-Benz Maintenance Systems in the USA.

Service A vs. Service B Intervals: What Are Their Key Differences?

One of the most prevalent differences between Mercedes-Benz Service A and Mercedes-Benz Service B is their time intervals. As we noted for Roseburg and Corvallis drivers up above, Service A is suggested after 1 year or 10,000 miles, whichever passes first, while Service B is recommended after 2 years or 20,000 miles, whichever interval passes first.

Concerning the actual services that get carried out, Service A and Service B tasks are overall very similar. However, during Service B, your vehicle undergoes a brake fluid replacement and a cabin air filter replacement. Certain CLA and GLA AMG® models will also have an engine air filter replacement during Service B.

What is Mercedes-Benz A7 Service? Or B4 Service?

Certain older model year Mercedes-Benz vehicles may prompt the driver to bring their vehicle in for “Mercedes-Benz A7 Service,” or other combinations of A/B followed by a number between 0 – 9. Each number corresponds to extra service item(s) that needs to be completed in addition to Service A or Service B (indicated by the letter A or B that precedes the number).

What is Mercedes-Benz A7 service? This particular combination indicates a need for Mercedes-Benz Service A maintenance items, plus automatic transmission oil and filter replacement.

Listed below is the full range of letter/number combinations you may at some point see on your dash, and what they indicate a need for in addition to Service A or Service B:

  • Mercedes-Benz A0 Service or Mercedes-Benz B0 Service – Add on sunroof cleaning and lubrication (if applicable) and spark plug service for select models
  • Mercedes-Benz A1 Service or Mercedes-Benz B1 Service Add on brake fluid replacement
  • Mercedes-Benz A2 Service or Mercedes-Benz B2 Service – Add on brake fluid replacement and sunroof cleaning and lubrication
  • Mercedes-Benz A3 Service or Mercedes-Benz B3 Service – Add on air filter replacement and spark plug service
  • Mercedes-Benz A4 Service or Mercedes-Benz B4 Service – Add on air filter replacement, spark plug service, and sunroof cleaning and lubrication
  • Mercedes-Benz A5 Service or Mercedes-Benz B5 Service – Add on air filter replacement, spark plug service, and brake fluid replacement
  • Mercedes-Benz A6 Service or Mercedes-Benz B6 Service – Add on air filter replacement, spark plug service, brake fluid replacement, and sunroof cleaning and lubrication
  • Mercedes-Benz A7 Service or Mercedes-Benz B7 Service – Add on automatic transmission oil replacement and transmission filter replacement
  • Mercedes-Benz A8 Service or Mercedes-Benz B8 Service – Add on automatic transmission oil replacement, transmission filter replacement, and sunroof cleaning and lubrication
  • Mercedes-Benz A9 Service or Mercedes-Benz B9 Service – Add on automatic transmission oil replacement, transmission filter replacement, and brake fluid replacement

Again, these service codes were previously implemented on older Mercedes-Benz vehicles. If you own a newer late-year model and it requires any of the extra services listed above, you will simply receive a notification for Mercedes-Benz Service A or Mercedes-Benz Service B on your dash. When you bring your vehicle to our service center, our trusted technicians will let you know if any of these extra items are required.

Schedule Service in Eugene Today!

Is it time to carry out a Service A or Service B interval for your new or CPO Mercedes-Benz vehicle? Don’t wait to schedule your appointment at the Mercedes-Benz of Eugene service center! Our technicians uphold the high standards of Mercedes-Benz service in a timely manner. And, when you consult our service specials, you can often find convenient savings to top off our already fair service prices. Of course, if you have any specific questions regarding Mercedes-Benz Service A costs^ or Mercedes-Benz Service B costs^, we welcome you to contact our team online or call us directly at 541-687-8888 for a quick quote!

*Services and pricing for Service A/Service B may vary due to your driving habits, mileage, and local environmental conditions. Please refer to your maintenance booklet for additional details and general guidelines for your vehicle’s year and model.

**Oil and filter change is the base advertised service component. Additional services as determined by your vehicle’s ASSYST Plus system, which calculates service needs based on your driving habits, time, mileage and environmental conditions, may increase service cost.

^2009 and newer Mercedes-Benz vehicles only. Price advertised for Service A/Service B includes all factory-required components. Please refer to your maintenance booklet for the complete list of factory-required services and details on the specific intervals for your vehicle’s year and model.

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