Mercedes-Benz C230 key won’t turn after battery change on Mercedes-Benz C230

Some Mercedes-Benz C230 owners report experiencing difficulties with their key not turning after a battery change, often due to a dead battery in the key fob or a faulty key fob itself. Additionally, some owners find that the key fob may need to be reprogrammed, which can be a common cause of this issue. Others have reported encountering electrical problems within the car that contribute to the key not functioning properly. Furthermore, a low or dead car battery can also lead to this frustrating situation. It is recommended that owners consider these potential causes to effectively troubleshoot and resolve the issue.