Someone tried to break into my mercedes vito van (2003) by puncturing a hole just underneath the lock on the sliding side door. Its a fairly deep hole and they did manage to get access, but I am new to mercedes and I'd like to be able to fix it up myself. Will I need a completly new side door? can the hole be repaired? I defiantly need to act on it because it will rust and the lock is loose. Any advice must appreciated, thanks!