When temperatures rise, there's nothing more refreshing than getting into a cool, air-conditioned car. However, auto A/C and heating systems can wear over time with use, and your refreshingly cold air becomes.hot. DW Campbell Tire and Service Center can perform routine auto A/C maintenance and heating system repairs which will keep your car comfortable for you and your passengers. DW Campbell Tire and Service Center offers quality auto repair services in Atlanta, GA and surrounding areas. What auto a/c and heating system does: Auto heating and A/C systems function to keep your car cabin warm in the winter and cool in the summer.