Summary
Mercedes Service B corresponds to the most comprehensive overhaul in the periodic maintenance program. It usually alternates with Service A and includes additional checks focusing on safety, undercarriage, and comfort. However, its exact content is determined by the vehicle, its age, mileage, and the information recorded in ASSYST or ASSYST Plus.
What is the difference between Service A and Service B?
Both maintenance services include general checks and, for a combustion engine, an oil change with oil filter replacement according to the manufacturer's specifications. Service B goes further: Mercedes-Benz indicates that it includes additional checks on components related to safety and comfort.
Therefore, the letter B should not be interpreted as a breakdown or an emergency level. It designates a stage in the maintenance schedule. The onboard computer displays the due date and may add a number or code corresponding to additional work.
What checks are usually carried out?
According to Mercedes-Benz maintenance lists, Service B may include:
- engine oil change and oil filter for combustion versions;
- inspection of brakes, tires, lights, and fluid levels;
- replacement of the cabin filter when scheduled;
- inspection of seat belts, undercarriage, axle joints, and boots;
- inspection of the accessory belt and update of the digital service book.
These elements form a basis, not a universal list. Operations related to brake fluid, spark plugs, filters, or transmission may be added depending on the due date.
When should Service B be carried out?
The correct reference is the vehicle's maintenance indicator. ASSYST calculates or reminds the due date based on the configuration and the planned program. The displayed date or mileage must be followed, without waiting for mechanical symptoms to appear.
After the intervention, the professional resets the indicator and records the history. Request details of the planned operations based on the VIN number: two Mercedes of the same range may not have exactly the same list at the same time.
Why does the price vary so much?
The price depends on the engine, the quantity and standard of oil, filters, additional due dates, and the workshop's hourly rate. A serious estimate should separate basic maintenance from additional work. Also check if the brakes, spark plugs, or fluids are only checked or actually replaced.
What to check after the service?
Keep the detailed invoice and check the record in the digital service book. No warning light should remain on, and the next interval should be consistent. To modernize the display without confusing personalization and maintenance, only consult the compatibilities indicated on our Mercedes virtual cockpit.