Front brake rotors are the platform's known weak point — prone to warping and expensive from Audi, so owners frequently upgrade to Girodisc or ECS big-brake kits. The other recurring item is direct-injection carbon buildup, which owners point out is actually worse on low-mileage, short-trip cars than on regularly-driven higher-mileage ones — so 'low miles' is not automatically lower risk here.
Brakes (warping rotors) and carbon are the cost items
Audi RS5 (B8) · mechanical