Urgent Audi service needed – engine light just came on

So I was driving home from work yesterday in my 2017 Audi Q5 and the check engine light started flashing, which immediately put me in a bit of a panic. I pulled over, turned the car off and back on again, and the light went away, but I can't just pretend it didn't happen because I know with modern cars, especially Audis, you really can't ignore these warnings. I've got a long road trip planned for next week and I need to make sure the car is in perfect condition before I head out, but I'm dreading taking it to the dealership because I've heard they charge eye-watering amounts just for a diagnostic scan. I've been looking at a few independent Audi specialists in the Musaffah area and I found one online – https://zenfoautoservices.ae/audi-repair-abu-dhabi/ – that seems to focus specifically on these cars, which is exactly what I need. Has anyone here used them before and can tell me if they're reliable and fair with their pricing? I'm hoping it's just a sensor issue or something minor, but I want to be prepared for the worst. Also, do they offer loaner cars or do I need to arrange alternative transport? Would really appreciate some honest feedback before I book it in.