What is the reason for the sudden burst of Volvo S80 heating box during driving?

1. oil change operation: the oil change timing of Volvo cars is determined by the mileage and is not affected by the season. However, if single-grade oil is used (only in summer), the lubricating oil that meets the seasonal temperature requirements must be replaced during seasonal maintenance; If multipolar oil suitable for winter and summer is used, it is only necessary to change the lubricating oil according to the oil change interval. Generally speaking, automobiles should use multipolar lubricating oil (engine oil, gear oil, etc.). ) as much as possible. Multipole lubricating oil has many advantages, such as wide application range, oil saving and cost saving. 2. Replace antifreeze: Volvo cars have added antifreeze, anti-boiling, anti-rust, anti-fouling and other functional coolants, so owners only need to check the liquid level before winter, and there is no need to replace it. If the water tank is filled with ordinary water, the antifreeze must be changed before winter comes. According to the manufacturer's regulations, the antifreeze is prepared into qualified cooling liquid and filled into the engine. Before adding antifreeze. The engine cooling system should be cleaned. In order to ensure the good cooling of the engine, it is recommended to use long-term antifreeze. 3. Battery maintenance: During the seasonal maintenance before winter, the battery should be cleaned and supplemented with distilled water. Due to the low temperature, the capacity of the battery is reduced. If the battery is used for a long time, it should be sent to a repair shop for a first charge and the proportion of the battery should be adjusted. Keep the battery in good working condition. 4. Check the air conditioner: Volvo cars adopt an electronically controlled automatic constant temperature air conditioning system, and passengers only need to choose the desired temperature. As for whether to use compressor or heating equipment, it is managed by temperature control computer. Check the heating equipment to start the car before winter, and choose the air conditioner with the highest temperature when the car is cold. Volvo is scheduled to raise the temperature inside the car in a short time, which is basically not limited by the engine water temperature. Second, the interior maintenance articles clean, fresh, bright and comfortable driving environment can not only improve driving mood, but also effectively extend the life of the interior. There are two things to pay attention to in the interior maintenance of luxury cars: 1, luxury cars are mostly leather seats, and leather is a natural thing, so maintenance should not be taken lightly. Chemical cleaning agents can't be sprayed casually. Strong alkaline cleaning agents, such as soapy water, should be selected and dried with cotton paper towels after cleaning. In addition to avoiding sharp scratches, daily maintenance should also pay attention to dust and sun protection. Because dust is everywhere, it will absorb the natural oil in leather and become a thousand skins. In addition, it is best not to use "protective agent" for leather, which will make leather "addictive" and must be used frequently, otherwise the leather will be dull and lifeless. The key point is that "protective agent" is not very beneficial to leather. 2. Dashboards and door decorations are mostly made of plastic. Under the irradiation of sunlight and ultraviolet rays and the "care" of ozone in the air, it will age, brittle and crack after a long time. Usually pay attention to cleaning or coating a layer of clean protective water wax on the dashboard and door decoration, which can also reduce external damage.