Your BMW is equipped with an electronic engine oil level monitoring sensor that will illuminate the image seen above. This light does NOT mean you are due for an oil change that is a common misconception amongst new BMW owners; this light indicates you are AT LEAST 1 quart/liter low on engine oil. Of course there are 3 potential causes, oil leaks, and oil consumption that cause oil loss, and faulty oil level sensors (most common on older models). With BMW’s factory over extended oil change interval there is even more time for the oil level to drop between changes …