You came to the right place because I myself recently looked for a way to clean the seats and could not find it. It's good that I was advised to pay attention to the material Steam extractor vs. Steam cleaner | Which is better? which tells about cleaning with steam cleaner with extraction and conventional steam cleaner. By following the step by step instructions you will succeed.I have crumbs and stuff in the holes of the seats and in the lining of the seats? Anybody know how to clean it?