Audi Post sales service Disgusting

I recently moved away from BMW to try Audi as my partner raved about hers. I bought a two year old SQ5 for R1.1M and all I have had are issues after issues with warning lights coming on and off, advising me to seek an Audi outlet ASAP. When I put it in, for days, no one can find an issue and a few weeks later, same warnings appear. Squeaky breaks - Audi refuse to replace as they are still within their "acceptable norms", but I must be embarrassed every time I break. My advise, go buy a Chinese Hybrid - the German manufacturers need a wake up a call as their post sales service is disgusting to say the least. I have had my Audi for 3 months and sadly, I am already eyeing some Chinese models with double the value at half the price.