So disappointing

I have a 2017 A4 Prestige edition I purchased from a dealer three years ago. It really was driven by an old couple to church on Sunday. It is spotless with only 47k on it. I have really only used my dealership for oil changes, but during the last one I was informed that the suspension mounts were cracking and dry rotting, and I should plan to take action in the near future. I have found an excellent “euro car” mechanic who looked at the car yesterday. After driving it and inspecting it he told me there is nothing wrong with the suspension, and would definitely NOT have any work done. I appreciate his honesty but am saddened by my dealership’s willingness to rip me off. Yes, I am female, but I thought I had built up a trusting relationship with them. Is this a common practice - I hope I don’t already know the answer to my question.