Hello guys, I have Mercedes-Benz E-Classe E270, 2003. When I start on the engine and press the gas pedal it will rev over 3000rpms, but after that it won't rev over 3000rpms. Below is the video for better explanation.

It'll rev past 3k after you deal with your brake and engine warning lights.

Brake lights has been there for months, but this problem has started like 2 weeks ago, I don't think brakes are rhe issue

What codes are being thrown?