One problem related to engine exhaust system has been reported for the 2003 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Acura MDX based on all problems reported for the 2003 MDX.
Noxious odor inside and outside vehicle due to catalytic converter overworking. Acura insists this is normal and has advised us to continue driving car while causing my family to become nauseous and sick from the smell. They insist that hydrogen sulfide is environmentally safe but research indicates that this chemical causes damage to the respiratory system. Acura has refused to correct this problem and has advised us to pursue litigous means. I do not understand why my car smell is so potent while other Mdx's do not smell.