How long is the running-in period of BMW 3 Series?

The running-in period of BMW 3 Series is 2000 kilometers. 100- 1000km is the transition period, and the rotation speed should not exceed 4000 rpm, and the optimal rotation speed should be within 3000 rpm. If it exceeds 100km, always pay attention to gear shifting and running-in braking system. Precautions during the running-in period of BMW 3 Series: warm up before starting, turn the key to the second gear, and wait for 5- 10 seconds before starting. Because the gasoline pump starts to work after the key door is opened, the oil pressure and fuel injection can be adjusted, so it is beneficial to start the motor and engine of the car again after a few seconds. After the engine is started, you can start driving as long as you can maintain a stable speed. Before the water temperature rises, properly control the vehicle speed, and you can drive normally after the water temperature is normal. During the running-in period, avoid slamming on the accelerator and braking. Do not drive at high speed. There is a speed regulation in the initial driving stage of a new car. When the throttle valve is fully open, the vehicle speed should not exceed 80% of the maximum vehicle speed. In use, it is necessary to observe the engine tachometer and speedometer to make the engine speed and speed work at a medium speed. Generally speaking, the engine speed during the running-in period should be strictly controlled between 2000 and 4000 rpm. Avoid overloading. Driving a new car at full load will cause damage to parts. Therefore, in the initial 1000 km, it should not exceed 75%-80% of the rated load. In addition, try to choose a better quality pavement to avoid excessive vibration, collision or emergency braking, and reduce the load on the body and power system.

Million car purchase subsidy