The Genuine Mercedes Compressor Filter Retaining Collar - 2203280279 is a part used in the air conditioning system of Mercedes vehicles. This collar is responsible for securely holding the compressor filter in place, ensuring proper functioning of the air conditioning unit. It is made of high-quality materials and is designed to fit perfectly in the designated spot in the vehicle's air conditioning system. This Genuine Mercedes part is an essential component for maintaining the efficiency and performance of the air conditioning system in Mercedes vehicles.