Engine light problem in a Mercedes C-Class Diesel

The Carly tool can indeed read and clear error codes from your vehicle's OBD system. However, it's important to identify the specific error code before clearing it to ensure there are no underlying issues that need attention. Start by using the Carly tool to scan for the error code, and then research or consult a professional to understand what the code indicates. If you clear the code without addressing the root cause, the issue might persist or worsen. Let me know how it goes or if you have any further questions!