Delphi invented the first air conditioning system for vehicles back in 1954. Since then Delphi has continued to develop and manufacture climatic systems on behalf of many car manufacturers, standing out for the excellence of its products and the ceaseless research of innovating solutions. Delphi owns 10 manufacturing plants for the production of AC systems in the world. The competence center for aftermarket products is Delphi-Diavia, located in Molinella, on the outskirts of Bologna.

Delphi-Diavia designs, manufactures and distributes air conditioning systems since 1970. In addition, the AC range is integrated by components, spare parts, maintenance and repair equipment and mobile refrigeration systems, offering to the independent distributors a complete package of products and services. Delphi-Diavia is capable of designing, even with short deadlines, tailor-made AC systems suited to the needs of special vehicles , for both road and stationary applications. In addition, Delphi-Diavia is also a training center for the design, installation and maintenance of air conditioning and is able to fully meet the requirements of the professionals.