Wagner’s is a family owned automotive repair shop located in San Luis Obispo, CA. We perform routine maintenance and repairs for all makes and models of cars. Services We Perform are: Oil changes, Factory scheduled maintenance, Check engine light diagnostics, Dash warning light diagnostics, Tune-ups Pre-purchase inspections, Brakes, belts, & hoses, Batteries & electrical system repair or service Air conditioner service and repair, Smog certifications and more.