2003 Acura MDX engine problems
The 2003 Acura MDX has 28 engine complaints filed with NHTSA — 11% of the year's total, and up sharply from the prior model year.
28
Engine complaints
11%
Share of year
0
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“NOXIOUS SULFUR ODOR INSIDE AND OUTSIDE THE VEHICLE WHICH IS LIKELY RELATED TO THE CATALYTIC CONVERTER. I WAS FIRST ADVISED THAT ACURA KNEW OF THIS PROBLEM WHICH WAS RELATED TO A NEW PELLET INSIDE OF THE CONVERTER. ACURA NOW SAYS THAT THERE IS NO PROBLEM. I AM BEING ADVISED THAT THIS TERRIBLE ODOR…”
Common questions
How many engine complaints does the 2003 Acura MDX have?
NHTSA has 28 complaints about the 2003 Acura MDX engine — 11% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.