Camper vans are handed over to you in a clean and tidy condition on the inside as well as on the outside, and shall also be returned by you in a clean and tidy state. External cleaning is included in the price. If, following return of the vehicle, inside cleaning, emptying of the sewage water tank and / or emptying of the toilet cassette have to be carried out by the lessor in part or in full, the lessor shall charge a cleaning fee.