Most modern Mercedes-Benz performance cars are equipped with Mercedes-Benz exhaust flap technology for adjusting air flow through the exhaust, affecting sound, performance, and comfort. Mercedes-Benz flap technology works in conjunction with DYNAMIC SELECT Driving Modes. When a mode is selected, the exhaust flaps, located inside the exhaust near the rear bumper, allow more or less air through the exhaust piping. By allowing more air through, the engine will sound more aggressive and can possibly add a little bit of power, sacrificing efficiency and noise reduction.
Actually, the exhaust flaps have more to do with sound than actual performance. If you are driving an AMG SL65, you might notice more of a power gain than if you are driving a CLA45, but in reality, it is only a few horsepower. That being said, the sound change is like magic and gives driving a really fun twist.
To make the Exhaust flaps coding, you can follow the steps below:
- Enter the Special Functions menu
- Enter “Exhaust Flaps” and make the desired changes
After making all of the desired changes, click the “Write” button to save the changes in the car.