Incredible 04 Bmw A4 Check Engine Light On Ideas. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage. Here’s how to read them!

This can range from a loose gas cap to a faulty catalytic converter to. Web here are the 10 most common problems that can trigger a check engine light. Web if your bmw check engine light (or service engine soon light) stays on, it means that the onboard diagnostic system ( also known as digital motor electronics dme) has detected a problem with the emission system, engine, or transmission.