In this Tech Tip, Rick Urso from Motor Age shares a comprehensive guide to performing a successful R-1234yf AC service using the Robinair AC1236-6 and Bosch ADS 625X scan tool. Urso walks viewers through each stage of the process — from checking static pressures to vacuum testing, leak detection, and final system charging.
A major focus is on AC leak detection methods, highlighting tools like the LD7 and LD9 tracer gas kit for AC, which help identify leaks efficiently without wasting expensive refrigerant. Urso also explains how to manually inject PAG oil and the necessity of following J-standard protocols and stresses the importance of holding a 609 AC certification when servicing modern systems.
The Bosch ADS 625X scan tool plays a key role in diagnosing vehicle-specific AC issues with real-time data and integrated wiring diagrams. Watch the full video to see the complete workflow in action and improve your shop’s AC service capabilities. Then learn more about R-1234yf products from Robinair here.
Rick Urso has been in the automotive industry for over 20 years. Currently, he works at a family-owned shop, Hi-Tech Auto Specialists in the southwest suburbs of Chicago. Urso started out sweeping the floors and worked his way up to lead technician, then to store manager. He runs the shop while diagnosing most of the drivability and electrical problems that come through. Urso notes that their shop takes pride in doing good, honest work and diagnosing problems correctly the first time.
