Why should you not top off gas of Mercedes c230?

Topping off the gas in a Mercedes C230 can lead to overfilling the fuel tank, which may cause fuel to overflow or damage the evaporative emissions system. This can result in costly repairs and potential issues with fuel leaks. Additionally, overfilling can disrupt the fuel gauge readings and lead to incorrect fuel level indications. It’s best to fill the tank to the recommended level and avoid topping off.