Mercedes-Benz Service Guide - Everything you need to know

Understanding Mercedes-Benz Services, Both the 'A' and 'B'

To make servicing as simple as possible, Mercedes-Benz has two main types of service, known as 'A' and 'B' - which differ from other manufacturers.

Here, your car will even let you know when a service is due by showing you a message on your dashboard, so you don't have to worry about remembering as well.

But how do they differ?

The Mercedes 'A' Service

Think of the 'A' Service as a thorough check-up for your car.

It's usually needed after the first year (or around 10,000 miles) and then every two years after that.

During an 'A' Service, our technicians will, for instance:

• Change the engine oil and filter using genuine Mercedes-Benz parts.
• Check and top up all vital fluids (like coolant and windscreen wash).
• Carry out a full brake inspection.
• Check your tyres for wear and set them to the correct pressure.
• Reset the service light on your dashboard.

The Mercedes 'B' Service

The 'B' Service, though, is more detailed and happens roughly a year after your 'A' Service, and then every two years after that.

This then includes everything in the 'A' Service, plus some extra checks and replacements, for instance.

For example, in addition to the 'A' Service tasks, a 'B' Service includes:

• Replacing the cabin dust/combination filter to keep the air inside your car fresh and clean.
• A more in-depth inspection of all components, including the engine, suspension, and steering.

Your car may also sometimes ask for an additional item, like a brake fluid change or a new air filter, which our Mercedes service team will always discuss with you first.

Understanding Your Dashboard, A Guide to Mercedes Warning Lights

Beyond the service reminder, your dashboard is your car's primary way of communicating with you and letting you know what's off.

For example, when a light illuminates, it’s a message to you that you shouldn't be ignored.

As a result, understanding what they mean can save you from unnecessary worry or prevent a minor issue from becoming a major one.

While your owner's manual has a full guide, here’s a simple breakdown of what the colours generally mean:

Red Warning Lights, Stop Safely

A red light indicates a potentially serious issue that requires your immediate attention.

Common examples include problems with braking, coolant temperature, or oil pressure.

So, if you see a red light, the safest course of action is to pull over as soon as it is safe to do so and contact us or your roadside assistance provider.

Amber or Yellow Warning Lights, Caution Advised

These are the most common warning lights. An amber light is an advisory, signalling that a system requires attention soon.

This could be anything from a faulty sensor or low tyre pressure to an engine management issue (the 'check engine' light). While the car is usually safe to drive, you should book a diagnostic check with our team to identify the exact cause.

Don't worry about trying to reset these lights yourself; our fully-trained technicians will do this after confirming the issue has been resolved.

Ready to Book Your Service?

As you can see, looking after your Mercedes-Benz is a partnership, and we're here to help you every step of the way.

If your car is telling you a service is due, or if you have any questions, please get in touch with our friendly service team.

You can book your service online or give us a call.

We look forward to seeing you and your car soon.

So is a Mercedes Service Right For You?

So there you have it, and we hope that with this guide, you now have a clear overview of the Mercedes-Benz servicing process to help you keep your vehicle in the best condition going.

At its core is the straightforward 'A' and 'B' service schedule, designed to cover all necessary checks and replacements at regular intervals, with your car automatically notifying you when maintenance is due.

We also explained how the modern Digital Service Book securely stores your car’s history online, protecting its warranty and enhancing its resale value by providing a complete and verifiable record of its expert care.

Ultimately, we now hope that you are more informed about how to maintain your Mercedes to the highest standards, giving you complete peace of mind on every journey.

Who is Sinclair Group?

Here at the Sinclair Group, we are a prominent family-owned motor retailer based in South Wales with a rich history dating back to 1945. Founded by Bill Sinclair in Port Talbot, our company has grown significantly over the decades.

Today, we operate 25 dealerships representing 12 prestigious automotive brands, including new Audi cars, new BYD cars, new Mercedes-Benz cars, new Land Rover cars to name just some of our 12 car brands, which allow us to offer your some of the most competitive and best prices on new car and used car deals available.

We also employ around 900 staff members, many of whom have been with the Group for over a decade, reflecting our dedication to our employee development and satisfaction as well.