The 2015 Audi A7 has 3 recalls, the most serious being a fire risk from an auxiliary heater electrical connector that can overheat due to excessive electrical resistance.
The two remaining recalls both involve airbag failures. The head curtain airbags along the roofline may not deploy correctly in a crash, leaving an unbelted passenger with reduced protection against being ejected. Separately, the front passenger seat contains a body-sensing mat that detects whether the seat is occupied and by whom. Stress or wear on that mat can cause the passenger occupant detection system to malfunction, which in turn can prevent the front passenger airbag from deploying in a crash, raising the risk of injury to whoever is sitting there.