Ahead of the upcoming October 11 InsiderAR augmented reality conference in Munich, German automaker Volkswagen has unveiled an iOS-centric augmented reality service support app for its vehicles, reports The Next Web. Codenamed MARTA, which is short for Mobile Augmented Reality Technical Assistance, the application is designed to be used on Volkswagen’s XL1 concept car and walks technicians through each step of a repair or service, pointing out individual parts and displaying step-by-step instructions to service specific sections.