Do they really wash your car at your place? I’m not sure. ‘Carwash’ is Dutch for ‘car wash’. When English words become accepted in Dutch, they often get crammed together. However, ‘mobil’ is neither Dutch nor English, so I have to assume it could be the name of the company, although there’s no capital letter. Wax as a noun is OK in Dutch, but not as an verb. It’s all too much for me.