What does AB maintenance mean?

[PhoebeAnn]

Mercedes-Benz's A maintenance generally involves changing the engine oil and oil filter, while B maintenance includes replacing the air filter and cabin air filter, in addition to the items covered in A maintenance. A maintenance is typically performed at 10,000 kilometers, and B maintenance is usually done at 20,000 kilometers. Below are the specific details: 1. A maintenance is commonly referred to as minor maintenance, which usually involves basic maintenance tasks performed at the mileage or time intervals specified by the manufacturer to ensure vehicle performance. It mainly includes changing the engine oil and oil filter. 2. B maintenance is the major maintenance for the vehicle, referring to the maintenance tasks performed at the mileage or time intervals specified by the manufacturer. In addition to changing the engine oil and oil filter, it also includes replacing the air filter, cabin air filter, brake fluid, transmission fluid, and other items. Therefore, B maintenance includes A maintenance, and typically, A and B maintenance are performed alternately.