Monthly Archives: January 2026

Check Engine Light on a Rainy Day: EVAP and Sensor Basics for European Cars

Check Engine Light on a Rainy Day: EVAP and Sensor Basics for European Cars

Why Your Audi or BMW Might Be Trying to Tell You Something After a Storm What Is Going On When the Light Comes On? As you navigate through Burbank following a light rain, the roads glisten with moisture, and your windshield wipers rhythmically sweep away droplets. Suddenly, that familiar orange glow catches your eye on the dashboard, and the check engine light appears. This is one of those exasperating warnings every driver dreads, especially when it conveniently appears just as weather conditions change or when they're already under a hectic schedule. Owners of European cars such as Audi, BMW, Mercedes, and Volkswagen are well acquainted with this situation. Contemporary vehicles depend on intricate emissions and vapor control systems that can be sensitive to factors such as moisture, temperature fluctuations, and even minor vacuum leaks. While certain check engine lights signal serious problems, others may be triggered by minor issues such as a loose gas cap or a moisture sens ... read more