What does B7 mean?

[EllianaLynn]

Mercedes-Benz maintenance B7 item means it is currently prompting that the maintenance is due, and the specific maintenance items need to be checked at the 4S store based on the mileage. The following are the related introductions of maintenance items: Oil filter: The replacement of oil and oil filter is mainly for the maintenance of the lubrication system. The main function of the lubrication system is to effectively lubricate various parts of the car engine to prevent excessive wear. The function of the oil filter is to remove various impurities in the oil to ensure the normal operation of the lubrication system. The oil filter should be replaced together with the oil when changing the oil. Under normal circumstances, the car needs to be maintained every 5000KM. Air filter: The function of the air filter is to filter the air before it enters the cylinder, removing impurities, dust, sand and other foreign objects contained in it. The cleaning and maintenance of the air filter depend on the usage environment. The gasoline filter is generally replaced when driving 20000-25000KM.