What Is The Difference Between Mercedes-Benz Service A and B?

What Is The Difference Between Mercedes-Benz Service A and B? | Chicane Motorsport

When you own a Mercedes-Benz, keeping up with regular maintenance is important to ensure your luxury vehicle stays in top shape. Mercedes has its own unique maintenance schedule, and two terms you’ve likely come across are "Service A" and "Service B." These services are designed to keep your car running efficiently, but many people wonder: what exactly is the difference between the two?

Mercedes-Benz Service A

Service A is the first major scheduled maintenance for Mercedes-Benz vehicles and typically occurs when your car reaches 10,000 miles or one year, whichever comes first. After the initial Service A, this maintenance is performed every 20,000 miles or every 2 years.

So, what does Service A include? It’s a comprehensive check of your vehicle’s core systems, ensuring everything is running correctly and safely. Here's what is typically performed during Service A:

Oil and Filter Change
One of the most important aspects of Service A is an oil and filter change. Fresh oil helps keep your engine running smoothly and reduces wear on critical engine components.

Brake Inspection
Your brakes are crucial for your safety. During Service A, your technician will inspect the condition of your brake pads, rotors, and overall braking system.

Fluid Level Checks
The technician will check and top off important fluids, including coolant, brake fluid, and windshield washer fluid.

Tire Inspection
Tires are inspected for wear, and the pressure is adjusted if necessary to promote even wear and ensure optimal handling.

Reset of Maintenance Counter
After completing the service, your car’s onboard system will be updated to reflect the maintenance that has been performed, and the counter will be reset for the next service interval.

Service A is often referred to as a basic maintenance package, focusing on the essentials needed to keep your vehicle operating at its best.

Understanding Mercedes-Benz Service B

Service B takes everything covered in Service A and adds a few more in-depth inspections and services. It is recommended at 20,000 miles or two years (whichever comes first), and after that, it alternates with Service A every 20,000 miles or every two years.

In addition to everything included in Service A, here’s what you can expect from Service B:

Cabin Air Filter Replacement
Clean air is essential for both you and your vehicle. The cabin air filter is replaced during Service B to ensure your car’s air quality remains fresh and free from pollutants.

Brake Fluid Exchange
Over time, brake fluid can absorb moisture and become less effective. As part of Service B, the brake fluid is replaced to maintain optimal braking performance.

Additional System Checks
Service B includes a more thorough inspection of the vehicle’s engine and other systems to ensure that everything is operating as it should be.

Overall, Service B is considered more comprehensive than Service A, addressing additional components and ensuring that your vehicle remains in optimal condition.

Key Differences Between Service A and B

While both services are essential for the longevity and performance of your Mercedes-Benz, the main difference lies in the scope of each.

Frequency
Service A occurs after the first 10,000 miles and then every 20,000 miles or 1-2 years. Service B, on the other hand, starts at 20,000 miles and then alternates with Service A every two years or 20,000 miles.

Additional Services
Service B includes all the checks and services of Service A, with a few more tasks such as brake fluid replacement and a more detailed inspection of the vehicle’s systems.

Both services ensure that your Mercedes remains in excellent condition, but Service B is more extensive, focusing on deeper maintenance.

Why Following the Mercedes-Benz Maintenance Schedule Is Important

Mercedes-Benz vehicles are engineered with precision and advanced technology, which is why following the recommended maintenance schedule is so important. Regular maintenance helps to catch any issues early, keeps the vehicle performing as it should, and extends its overall lifespan. Ignoring Service A or B can result in more costly repairs down the road, as issues that could have been easily resolved may escalate into more serious problems.

Whether it's a simple oil change or a detailed brake inspection, sticking to the Mercedes maintenance schedule ensures that your vehicle runs at peak performance, keeps you safe on the road, and maintains its resale value.

How Do You Know When You Need Service A or B?

Mercedes-Benz vehicles are equipped with a Flexible Service System (FSS) or the newer ASSYST system, which monitors various aspects of your vehicle’s performance and driving conditions. The system will alert you when it’s time for Service A or B, removing the guesswork from maintenance.

If you’re unsure whether it’s time for Service A or B, simply check your vehicle's service records or the display on your dashboard. Your trusted Mercedes-Benz service provider can also assist you in determining what your car needs based on mileage and time.


Keep your Mercedes-Benz in top shape with comprehensive maintenance from Chicane Motorsport. Whether you need Service A or B, our certified technicians have you covered. Contact us to set up your next service!