What Causes White Smoke from the Exhaust Pipe of a BMW 3 Series?

[McParker]

White smoke from the exhaust pipe of a BMW 3 Series is caused by the engine block temperature being too low. As the engine temperature rises, the white smoke phenomenon gradually disappears, which is normal. Check the engine coolant temperature, turn on the engine water heater, or run the engine at no-load (or low load) for 10 to 15 minutes. When the coolant temperature rises to 50 to 60 degrees Celsius, the exhaust smoke opacity will gradually return to normal. The BMW 3 Series is a sedan product of the BMW Group, with a body weight of 1465 kg and equipped with an inline 4-cylinder gasoline engine. In terms of body dimensions, the BMW 3 Series measures 4734 mm in length, 1811 mm in width, and 1455 mm in height.