Carbon fiber-reinforced plastic (CFRP) composites exhibit excellent mechanical properties such as high strength, light weight, and low thermal expansion, conferring considerable potential for applications as materials for sliding components. The use of these materials is limited due to the low glass transition temperature that is easily attained under sliding conditions. This work aims to quantify the effect of a diamond-like carbon coating (DLC) treatment on carbon fiber reinforced plastic (CFRP) and reveal the tribological performance when the composites are used as sliding components. In this research, the DLC-based coating with a thickness of 1 µm is applied directly on the surface of the CFRP. After characterization of the coated surfaces using Raman spectroscopy, Vickers hardness and laser microscopy, the performance of the CFRP is tested against wear and frictional heat. The results show that the coating treatment improves the wear life and lowers the frictional heat significantly. The application range for a given contact pressure and sliding velocity of a mechanical part under consideration is determined based on the experimentally obtained p-v curves. The overall results show that DLC coated CFRP composites can be used as materials for sliding mechanical parts under the specified P-v curve.