My 2017 had a clicking/buzzing fan when it was about 2 years old. I bought a used fan from a seller on eBay (I think it was a $12 part), took the laptop apart (involved some very tiny screws) and replaced it and it's been fine ever since. There's even videos on YouTube you can follow along with.
Nowhere near as simple as repairs on the old non-Retina, unibody machines but easier than an iPad.
Nowhere near as simple as repairs on the old non-Retina, unibody machines but easier than an iPad.