1. Check for an emergency keyhole or release: Many Mercedes Benz models have a small emergency keyhole or release mechanism located near the trunk latch. Look around the trunk area, particularly on the underside or near the license plate, and try to locate it. If there is an emergency keyhole, insert your spare key and unlock the trunk.
2. Use the valet key: Some Mercedes Benz C-230s come with a valet key, which is typically smaller than the main key. This key is often used to unlock the glove box or the center console, but it may also work for the trunk. Try using the valet key to open the trunk if available.
3. Access through the rear seat: Some models of the C-230 have folding rear seats that can be lowered from inside the vehicle. If your car has this feature, fold down the rear seats and try to reach the trunk release lever from there. You may need to use a flashlight and a tool to reach it.
4. Manual trunk release: Some older Mercedes Benz models may have a manual trunk release cable or lever located under the rear seats or near the trunk hinge mechanism. Try to locate and pull on this release to open the trunk manually.
5. Call for assistance: If none of the above methods work, or if you feel uncomfortable attempting them, it's best to call for assistance from a qualified technician or a professional locksmith. They have specialized tools and techniques to open locked trunks without causing damage to your vehicle.
Remember, it's important to avoid any actions that could potentially damage the locking mechanism or the trunk itself. If you're not comfortable with the suggested methods or lack the necessary tools, seeking professional help is always a wise decision.