One problem related to engine noise has been reported for the 2003 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Audi A4 based on all problems reported for the 2003 A4.
After returning home from a drive through fast food place last night my daughter was parking in our driveway, she was in reverse. The car (a 2003 Audi A4 cv convertible) bounced and made a sound then she stopped. I said take the keys out of the ignition to her black smoke started to rise out of the top of the hood crack in front of the front windshield. I told her to get the dog in our back seat and herself out I assumed it was on fire because the dark smoke. I grabbed my purse piped the hood and my daughter called 911 as the neighbors ran inside there home for a fire extinguisher. Two men from across the street attempted to put it out as I spoke to the 911 operator. The fire department arrived and got the fire out. My car is now junk. My daughter was emotionally strained, hysterical throughout the incident. It was traumatic for us both. The firefighters said it was possibly caused by electrical malfunctions.