I was driving my new 2018 audi a5 cabriolet (approx. 4500 miles) on a local road. the driver side sun visor was in the 'down' position when driving this morning headed into the rising sun. as the sun shifted from in front of me to my left side, i released the sun visor from the clip and moved it to the left side to block the sun. the arm of the sun visor, attached to the car just above the windshield, broke away from that attachment and fell into my lap (see attached photo p3110021). this left me with no protection from the intense sunlight, blinding me as the car turned to the left with the sun now in my eyes. this is the second time this has happened, the first time at about 1500 miles on a new vehicle (which was eventually repaired by the dealer, under warranty ' see attached 'scan_001'). both times, the sun visor broke away from the vehicle (see attached photo p3110020) while turning it to protect from sunlight on the left side of the vehicle. the passenger side sun visor also broke in the same manner (while moving it to protect from sun light on the right side) at about 2000 miles, and was repaired under warranty at the same time as the first driver side sun visor (same attachment referred to above). i consider this a safety issue because a) if headed into the sun, this immediately removes the sun blocking protection and could result in sudden blindness on the road ahead, and b) not having use of the sun visor could also impair vision while driving in a sunny environment, even if using sunglasses.