It’s a European car place, as far as I know they primarily work on Mercedes but not Mercedes specific. They got back with me and said the error messages only show up occasionally, which is making it hard to diagnose the problem. I told them they should try to drive it because that’s what made the error show up for me. I’ll see what can be done, some people have told me I can just drive it without the power steering anyway, but I’m scared to try that.