Keep bugging the ***********. I know it may be annoying, but eventually they'll have to duplicate the problem. Ask to go for a test drive with the technician. Don't give up though. BTW, whatever you do, don't give the car to the dealer to do your brakes. Apart from the fact that they will take an arm and a leg for it, it's so easy that a caveman could do it.

 

first what brakes do you need? front pads? rotors? i have a set of rotors resurfaced..

and for the air suspension light ... what is the code? if it's C2302 if it;s not the relay then it's the air compressor... have also seen shocks leak..

does it sayAIR SUSPENSION FAULT?

 

Look to spend around $350 on labor alone, if only the fronts.

 

If the car currently has brendo's on it it's about a 15 minute job to change the pads or are you saying that you need to install the whole brembo system (calipers, rotors, pads) ? I still don't think it is a bad job for a person that regularly works on cars.
I was just reading that your car comes standard with brembo's so I guess your just changing the pads and maybe the rotors. My advice would be to use better pads than the factory spec. I had mew brembo pads installed by the dealer for free due to a frozen caliper and I replaced them with a better pad about a month later because of the noise and extreme dust. Now my wheels stay much cleaner(much cleaner!!).
I hope something that I wrote helps.