The 2019 Audi S5 has 4 recalls, the most serious involving a rear axle lock nut that can break and misalign the rear axle, causing the driver to lose control of the vehicle.
The front suspension also has a concern: cracks can develop in the front shock absorber forks, allowing the shock absorbers to work loose. A loose shock absorber reduces the damping that keeps the tire in contact with the road and can make the vehicle difficult to steer, particularly during quick maneuvers or on uneven surfaces. The passenger airbag system has a separate issue where the front passenger seat sensor can fail to correctly detect an occupant, causing the system to disable the passenger airbag. In a crash, that means the front passenger rides without airbag protection. Rounding out the list, the same rear axle misalignment that poses a control risk in the most severe recall can also cause uneven or accelerated tire wear, which may reduce traction over time and raise the risk of a crash even before the alignment problem becomes obvious to the driver.