C-Class: AIR BALANCE package - Mercedes-Benz original - YouTube
MERCEDES-BENZ ORIGINAL PERFUME RETROFITTED in W213 - YouTube
Amazon.com: Boxiti Set – AMG #63 Mood for Mercedes Benz Air Freshener System, Genuine Perfume for Mercedes, Interior Cabin Fragrance for Mercedes Cars Equipped with Air Balance Package (P21) and Boxiti Wipe :