Mercedes B3 Service [What’s Included & Checklist, Cost]

Mercedes-Benz vehicles require routine maintenance to ensure long-lasting and safe performance on different roads.

Getting accurate and relevant information about Mercedes-Benz B3 service messages is difficult.

It is common for Mercedes flexible service systems to be reminded to be serviced by sending the owner a reminder.

Two years ago, I was puzzled by the same message. As a result, I wrote this article to share my own experience with Mercedes B3.

In this article, I explain in detail what the B3 service involves, how it is performed, and how much it costs.

Table of Contents

What Is Mercedes B3 Service?

Mercedes B3 Service

The Mercedes B3 service consists primarily of oil and filters.

Every 60,000 miles or after one year, Mercedes-Benz’s B3 service performs an oil and filter change.

This maintenance service also contributes to road safety since it includes brake and suspension inspections.

If you correct the problems related to these components, your vehicle will perform better and last longer.

Mercedes Service B3 Checklist

This checklist can help you do the service yourself instead of going to the garage.

Service ItemType
Replace Air FilterB3 Exclusive
Replace Spark PlugsB3 Exclusive
Replace Synthetic Motor OilStandard B-Service
Replace Oil FilterStandard B-Service
Replace Cabin Air FilterStandard B-Service
Check Fluid LevelsStandard B-Service
Check Tire PressureStandard B-Service
Check Brake ComponentsStandard B-Service

Mercedes B3 Service: What’s Included?

Mercedes B3 Service

The following is a detailed description of B3 services:

Spark Plug Service

The comfort and performance of Mercedes-Benz vehicles make them ideal for road trips.

Spark plugs can fail if the vehicle is idling for a long period of time or if it is driven slowly.

It is important to change your spark plugs if your engine runs rough, misfires, or surges. You should also keep your air filters and fuel injectors clean to prevent spark plug stalling for a long time.

Replacement Of Synthetic Motor Oil

A synthetic oil service is recommended for Mercedes-Benz models once a year or every 10,000 miles to ensure maximum engine performance.

By optimizing heat distribution, the new oil protects the engine against overheating and surging. Replacement of engine oil is included in Mercedes-Benz B3 services.

A reputable and reputable Mercedes dealer should be able to provide you with synthetic oil. Engine failure can result from adverse weather conditions affecting regular oil.

Check And Correction Of All Other Fluids

Fluid is required for the operation of several Mercedes-Benz components. This fluid drains out when it leaks, causing it to malfunction.

The B3 service at Mercedes includes a fluid check and correction, if necessary. Checking and adjusting fluid levels is dependent on the car’s model, year, and service interval.

Read your car manual to find out which fluids need regular inspections and replacements.

Air Filter Replacement

Dust accumulates in Mercedes-Benz air filters as a result of driving on dusty roads. Dust-clogged air filters result in dirty oil and poor performance of the engine.

Furthermore, a B3 service on Mercedes is an excellent option for inspecting and replacing all the air filters. As a result of the new filters, dust will be trapped, allowing the engine to run more efficiently.

Inspection Of Brake Components

Vehicle safety largely depends on the brakes, which are one of the most important components. Pedal pressure can be prevented from being transmitted to the wheels if brake fluid leaks.

Additionally, disc depreciation will make it harder for the vehicle to stop due to brake failure. By performing routine maintenance, such situations can be avoided.

It is necessary to inspect the pedal, brake fluid, brake lines, shoes, and pads of Mercedes B3 brakes. It is possible to identify damages and malfunctions before they lead to severe problems through this method.

How Much Does Mercedes B3 Service Cost?

Mercedes B3 Service

Service costs for Mercedes-Benz B3s usually range from $200 to $450. Among the services included in the B3 are oil changes, brake inspections, and suspension inspections.

A minor service includes checking fluid levels and correcting them if necessary. Mercedes should be serviced after one year if they haven’t been serviced previously.

In addition to being more expensive than Mercedes A services, maintenance services require component replacement. The cost of Mercedes-Benz B3 service depends on the model, the year, and the replacement of components.

In comparison to older Mercedes-Benz models, modern models cost more to maintain and service. It is extremely expensive to replace worn-out components of brakes and suspensions, since they are sold as sets.

It is best to seek out an independent mechanic rather than going to an authorized dealer (unless you have a warranty and service plan).

Also, regular oil does not disperse heat, so don’t use it in your engine. The performance of your engine will be optimized if you use synthetic oil instead of regular oil.

Consider your options before paying too much for a technician in your area. It is important that the mechanic you choose for the B3 service has experience working on all Mercedes-Benz models.

Why Is A B3 Service So Expensive?

Mercedes B3 Service

The B3 service may seem quite expensive if you own a Mercedes-Benz. Can you tell me why the price is so high?

A-services are categorized as A1, A2, A3, etc. B-services are classified as B1, B2, B3, etc. Thus, last year’s A3 service cost you considerably less.

It takes specialists to diagnose and repair Mercedes-Benz vehicles because they are designed with sophisticated technology and high-quality parts. By leveraging their expertise, B3 services maintain your vehicle in top condition.

The exclusivity of Mercedes-Benz also affects service costs. The Mercedes-Benz brand is synonymous with luxury, performance, and comfort.

They provide high-quality cars (like Audi, BMW, and others), as well as excellent service and maintenance. It is, therefore, also expensive to maintain a vehicle.

In order to maintain a Mercedes-Benz B3, this cost is included in the total cost of ownership. You should find a trusted mechanic if you need a mechanic who knows Mercedes in your area. You’ll often benefit from more individualized service in addition to saving money.

How Often Should A B3 Service Be Performed?

Typically, these services need to be performed after 60,000 miles (or the sixth year of ownership). In the Flexible Service System, the EXACT time will be determined by the car. Approximately 10,000 miles (a year) will pass after the A3 service has been completed.

If you don’t remember the exact date, your car will display a message that says “B3 Service Due”, “B3 Service Exceeded by X Days”, or “Service B.” Don’t worry if you don’t remember the exact date.

Mercedes Service B3 Maintenance Benefits

Mercedes B3 Service

Enhances Acceleration And Driving

By replacing spark plugs and changing air filters, Service B3 enhances your vehicle’s performance. Your car’s engine will perform better with new and clean spark plugs and air filters, resulting in better acceleration.

Improved Fuel Efficiency

When an engine is properly maintained, synthetic oil should be replaced and fluid levels should be checked. The engine runs smoother and consumes less fuel when clean oil is used, which reduces friction.

Maintaining Resale Value

With Service B3, potential issues can be detected and repaired before they become serious. This proactive maintenance approach can help you preserve the resale value of your vehicle over time.

Enhanced Safety Features

Your vehicle’s safety is significantly enhanced by a brake component inspection included in Service B3. Identifying potential brake system problems early will prevent your vehicle’s stopping ability from being compromised.

Prevents Costly Repairs

Regularly maintaining your equipment through Service B3 will help you avoid expensive repairs down the road. When minor issues are addressed during service, they are unlikely to escalate into severe damage.

How To Reset Service B3 On A Mercedes In 4 Methods?

Method 1: Start The Ignition Process

As soon as you turn on the ignition, the mileage will appear on the dashboard. Make sure the key is in the first position. A steering wheel-mounted navigation button is an important feature to note.

Method 2: Navigate To The ‘Trip’ Menu

When you press the left navigation button, the “Trip” menu will appear. While holding down the call button, hold down the “OK” button for about five seconds.

You will be taken to the shop menu when you click this button. You will find “Trip” at the bottom of the page.

Method 3: Locate ‘Assyst Plus’ And Select It

By repeatedly pressing the down navigation button, you will find the “Assyst Plus” option. You can confirm by clicking “OK”.

Next, click the down arrow again and click “OK”. Click “OK” when you have selected “Full Service”.

You will reach “Conf.” after you scroll down. You can select “Full Service” from the list. Select your option. You will then be asked, “Service performed? ”.

You can confirm your choice by clicking the down arrow and selecting “Yes ”.

Method 4: Finalize The Process

You will see a message that says “Cannot be done.”. Click “Confirm” to continue. I would appreciate it if you could click “OK” once you have understood.

Please note that you cannot reverse the reset of the service light by confirming. Finally, a message will appear asking, “Full Service Carried Out? ”.

The process is complete once you click “OK” to confirm your approval. For the system to continue, each step must be confirmed.

Some Mercedes models will not work with this reset, but most will.

Choosing The Right Service Center

Mercedes B3 Service

Get An AASE-Certified Mechanic To Work On Your Vehicle

Their professional experience and rigorous testing have prepared them for vehicle maintenance and repair.

Use Of Genuine Parts

Mercedes-Benz service centers should only replace parts during Service B3. Your vehicle’s performance and resale value will be maintained if you use genuine parts. You can be sure that your parts will fit and function perfectly if they are authentic.

Communication And Transparency

Providing good customer service requires good communication. They should be able to answer any questions about Service B3 procedures.

Authorized Mercedes Service Centers

The first step should be to identify a Mercedes-Benz service center that is certified. As a result of this certification, the service center has been trained by the manufacturer, ensuring it has the technical know-how and tools necessary to service Mercedes vehicles. These centers are likely to provide high-quality service as they are equipped with the latest information and tools.

Customer Reviews And Testimonials

As part of your research, you need to evaluate the service center’s reputation. Customers are able to share their experiences through digital platforms through the use of reviews and ratings.

Identify service centers that are highly regarded by their customers. Pay attention to the comments that highlight their professionalism, work quality, and dedication to the customer.

Centers With A Strong Mercedes Track Record

The importance of experience in automobile service cannot be overstated. It is common for long-established service centers to accumulate extensive knowledge and expertise, which allows them to handle intricate service requests, such as Service B3, efficiently.

How Long Does A B3 Service Take?

Mercedes B3 Service

Depending on the location, season, and maintenance requirements, Mercedes B3 servicing can take between 2-3 labor hours.

Mechanics trained by dealer shops and streamlined processes cannot compete with independent specialists. The labor rates of independents, however, are typically lower. The peak spring and fall seasons can result in longer wait times at overbooked shops.

The level of staffing in a shop also impacts turnaround time. There are some maintenance requirements not covered in the B3 checklist, so adding more requirements will lengthen the maintenance process. In addition to the B3 service, there is likely to be shop delay, seasonal demands, and additional maintenance that may take more than three hours to complete.

Tips For Maintaining Your Mercedes Between B3 Services

Regular Vehicle Inspections

You can catch potential issues early if you check your Mercedes regularly. If you notice any changes in performance, fluid leaks, or unusual sounds, you should take note of them.

Proper Tire Maintenance

In order for tires to perform well and be safe, they must be designed properly. You should check your tire pressure regularly, rotate your tires according to the manufacturer’s recommendations, and replace them when necessary to maintain optimal handling.

Keeping Up with Routine Checks

The best way to maintain the overall health of your Mercedes is to check its fluid levels, replace air filters, and inspect belts between B3 services.

Can I Do A B3 Service Myself?

You can perform these services on your own. Before starting this project, a few factors need to be taken into account.

To begin with, make sure you have all the tools, knowledge, and skills you need. The replacement of oil filters and spark plugs is simple for novices (such as oil changes), whereas the replacement of brake fluid and spark plugs requires more skill and tools.

Understanding your car’s functions and components is necessary to perform a service effectively. The owner’s manual for your vehicle, forum postings by users, YouTube videos, and even specific model-specific service manuals can provide information about these aspects.

Furthermore, you should know that performing a B3 service yourself carries some risks. It is possible to make mistakes or even damage your car if you’re not careful or experienced.

You may also void your warranty if you perform a B3 service yourself. Make sure you read the terms and conditions in your car’s warranty before performing the service on your own. It is possible to void some warranties if they are performed by someone who is not authorized.

B3 service can be provided by do-it-yourselfers, but they must consider their skills, the tools they have available, the risks they may face, and any terms of use they may need to comply with. Although you will save some money, it is important to remember that Mercedes-Benz parts are not exactly cheap, so you won’t be able to afford them.

Read: Mercedes B7 Service

Read: Mercedes A7 Service

Read: Mercedes Service B9

Read: Mercedes Service A3

Frequently Asked Questions

Is B3 service only for new Mercedes vehicles?

To ensure ongoing performance and longevity, Mercedes vehicles are recommended for B3 service regardless of age.

How often should I schedule a B3 service?

Mercedes usually recommends maintenance based on mileage, however, performance changes and unusual sounds may indicate a problem that needs immediate attention.

Can I perform B3 service on my own to save money?

Some maintenance tasks can be performed by owners, but B3 service requires intricate procedures best handled by certified technicians.

Is B3 service expensive compared to other maintenance options?

The overall health of your Mercedes can be ensured with a comprehensive service such as B3, thereby justifying its cost.

What should I look for in a service center for B3 service?

Providing certified technicians, genuine parts, and positive customer reviews are the characteristics of the best Mercedes service center.


Maintaining your Mercedes B3’s performance, longevity, and safety is more than just a routine maintenance package. In addition to preserving its value, regular maintenance ensures that your B3 drives smoothly and enjoyably. Don’t consider Mercedes’ health as an expense; take proactive measures to protect it.

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