One problem related to headlight concealment device has been reported for the 1999 Audi A4. The most recently reported issues are listed below.
The headlights do not provide sufficient illumination on low or high beam. Driver was not able to avoid hitting a herd of elk because of the lighting. The dealer is not able to correct the problem.
| Headlight Concealment Device problems | |
| Hazard Flashing Warning Light Unit problems | |
| Hazard Flashing Warning Light problems | |
| Brake Light problems |