One problem related to engine exhaust system has been reported for the 2003 Acura TL. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Acura TL based on all problems reported for the 2003 TL.
Burning smell emanating from exhaust area into cabin at 9800 miles. Terrible - can smell it on the outside from 25 feet away. The stench inside the back seat of the cabin is enough to make you gag. Car is only 100 miles overdue for an oil change (3100 miles) running manufacturer recommended oil weight. Car has had trouble since I bought it - but mostly external until now (peeling paint).