A1 Auto Repair Smog in San Juan Capistrano, CA. is an official smog check center & full service auto repair: offering all types of DMV required smog tests which includes the Biennial smog check, smog check test, out of state, vehicle registration smog test, diesel smog check, regular smog check, registration renewal smog check, gross polluter certification, change of ownership smog test, vehicle smog check. We offer free electronic smog certificate transfer to DMV that is included in our smog check coupon. We use the latest diagnostic equipment and the highest quality parts and fluids to service and repair your vehicle: Engine, Computer Diagnostics, Brake & Lamp inspections, Electrical System, Tires, Oil Change, Brake, Wheel Alignment and more.