Talk:RR3 Wiki:Sales This Release/@comment-28176349-20180321013235/@comment-4939977-20180325023913

Because instant service requires not only an active mechanic but also a car that is not currently servicing. Wait for the car to finish servicing normally, downgrade its condition and if you service it again, it becomes instant service.

I learned it the hard way when I can't service a car with instant service because of the busy mechanics.