After driving the S6 for the first time a few videos ago, I knew I needed to bleed the brakes before this thing would be road-worthy. I went to Harbor Freight and picked up their pneumatic brake fluid bleeder. I was pleasantly surprised, as you can see in this review.
Buy it here: https://www.harborfreight.com/brake-fluid-bleeder-92924.html?_br_psugg_q=brake+bleeder