How many catalytic converters does a 2012 Acura MDX have?
Two catalytic converters, one for each bank of the V6 engine, is the typical configuration for the 2012 MDX.
The 2012 Acura MDX uses a 3.5-liter V6 engine with a dual-exhaust layout designed to meet emissions standards. Each bank of the engine typically houses a catalytic converter, and the exhaust system includes sensors to monitor their efficiency. In most U.S.-spec MDXs from that model year, you’ll find two catalytic converters in the exhaust path.
Location and function of the converters
The catalytic converters are integrated into the exhaust system on each bank of the V6. They reduce pollutants before exhaust gases exit the vehicle, and oxygen sensors monitor performance to ensure compliance with emissions standards.
Oxygen sensors and system monitoring
Typically, a two-cat layout is accompanied by multiple oxygen sensors—often two upstream sensors and two downstream sensors—to monitor catalytic efficiency on both banks. Exact sensor counts can vary by market and trim; consult the service manual for VIN-specific details.
Maintenance considerations
Catalytic converters are a critical but costly emissions component. To protect them, address exhaust leaks, misfires, or engine problems promptly, as these can damage the cats. If symptoms such as reduced power, increased fuel consumption, unusual exhaust smells, or a check-engine light with relevant codes appear, have a qualified technician diagnose the converter(s) and related sensors.
Summary
For the 2012 Acura MDX, the typical setup includes two catalytic converters—one on each bank of the V6 engine. This arrangement helps meet emissions requirements and supports proper engine performance. If you need VIN-specific confirmation or regional variations, check the owner’s manual or contact a Acura dealer service department.
