Interaction of small hydrocarbon ions, CD3+, CD4+, CD5+, and their isotopic variants CHn+ and (CHn+)-C-13 (n = 3, 4, 5), with room-temperature and heated carbon (highly oriented pyrolytic graphite, HOPG) surfaces was investigated over the collision energy range 16-52 eV. Mass spectra, translational energy distributions, and angular distributions of product ions were determined. Collisions with room-temperature surfaces showed both surface-induced dissociation of the projectiles and chemical reactions with the surface material. All projectiles showed formation,of C2X3+ (X = H, D) in interaction of the projectiles with terminal CH3-groups of surface-adsorbed hydrocarbons and a small amount of C-3 product ions, and collisions of CD4+ led, in addition, to CD4H+ by H-atom transfer from surface hydrocarbons. The surface collisions were inelastic with 41-55% of incident energy in product-ion translation (incident angle 60degrees with respect to the surface normal). Heating of the surface to 600degrees C practically removed the surface hydrocarbon layer. Interactions of the projectiles with the heated surface showed then only dissociation of the projectile ions (no chemical reactions) in inelastic collisions with about 75% of the incident energy in product-ion translation. The ion survival, probability was estimated to about 10% for CD5+ and about 30-60 times smaller (0.2-0.4%) for CD3+ and CD4+.