1, check obd in the garage. If you find a problem, you can ask the master about the manifestation of the fault. For example, there is a problem with electronic power here. I want to tell people in 4s that sometimes they will change direction after starting, and it will be _ after restarting. The fuel gauge shows that it is accurate. I want to tell them that my car is out of gas, and the oil meter shows that it is out of gas. Say something concrete and vivid, and I dare to be careless. Although I haven't encountered these problems, the system does have bugs.

2. Disadvantages of high oil temperature: The oil temperature is high, and many 4s answers you are _ normal, and BMW is _ like this. _ yes. If the car _ itself, maybe _ will handle it like this, after all, there is a risk of water leakage. BMW Rescue has consulted, and the boiling point of BMW antifreeze is 107 degrees. When the oil temperature reaches 1 15, I get the water tank temperature of _ 107- 109, which means that the water tank has been boiled, but there is no fryer. Why do so many customers say that BMW's water tank leaks? In fact, the quality of the water tank is _ _ _ _, there is something wrong with the cooling system, and so is the water tank. High water temperature will have the following disadvantages. First of all, fuel consumption will increase and the engine will wear out. The internal expansion coefficient of 1 15 degree engine is the same as that of 90 degree engine. Because the piston is a precision part, the fuel consumption will increase and the cylinder wall wear will also increase. My oil consumption jumped from 10.2 to 10.8 at first, which is also the risk source of burning oil in the future. Another point is that the temperature is too high, the rubber parts are aging, and the engine is not airtight enough, which will cause the oil to volatilize, which will also lead to the decrease of fuel consumption and power.