rr. Is not the vacuum prob. Cars are very dusty one. U see normal seats already will have black stains, imagine the carseats, wah, when the first time i wash the britax carseat, i wan to faint. The water is black! This maxi one i always use wet tissue to wipe, also very dirty. Ai yo, cannot, i die die my rape the maxi tomorrow morning and wash till clean clean. From my niece use till now, 5yo already! Never wash before!