NHTSA lists 3 safety recalls covering the 2003 Audi A4. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.
Fuel System, GasolineAug 2007 · NHTSA campaign 07V375000
On certain vehicles equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
Risk: If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
Fuel System, GasolineJan 2006 · NHTSA campaign 06V017000
On certain vehicles produced from september 2002 - march 2003, equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
Risk: If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
Exterior LightingMar 2005 · NHTSA campaign 05V096000
On certain passenger vehicles, there is a possibility of xenon headlamp coating degradation over time. The luminous transmittance of the headlamp may decrease over a period of time.
Risk: This condition could affect a driver's field of view, increasing the risk of a crash.