Acura
MDX
Mazda
CX-9
Acura MDX vs Mazda CX-9: 2024 Comparison
The short answer
Based on available data, the Acura MDX comes out ahead of the Mazda CX-9 on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
MDX
Overall
Overwhelmingly positive sentiment for first-generation model, widely regarded as groundbreaking luxury three-row SUV establishing segment template and Honda reliability reputation. Praised extensively for exceptional longevity with examples routinely exceeding 250,000-300,000 miles (402,000-483,000 km), comfortable ride quality, spacious three-row seating accommodating adults, powerful 3.5L V6 engine (240-265 hp depending on year), and low maintenance costs typical of Honda engineering. Owners report emotional attachments spanning 15-20+ years and multiple hundred thousand miles, describing MDX as "best vehicle ever owned" and "family member." However, criticism includes outdated technology by modern standards (no Bluetooth, basic infotainment in early years), thirsty fuel consumption (16-19 MPG combined), transmission issues affecting some high-mileage examples beyond 200,000 miles, and typical Honda third-row tightness for adults.
Best version to buy
3.5L V6 with Technology Package (2004-2006) The 2004-2006 model years preferred for revised 265 hp engine (versus 240 hp 2001-2003), improved transmission calibration addressing early issues, and Technology Package adding navigation, rear entertainment, premium audio. The SH-AWD (Super Handling All-Wheel Drive) system standard across all trims providing excellent winter traction and handling dynamics. 2005-2006 final years represent most refined iteration before second-generation redesign.
Known issues
- ⚠• Transmission failure (high mileage), slipping gears, delayed engagement, complete failure typically 180,000-250,000 miles (290,000-402,000 km) if maintenance neglected, fluid changes every 30,000 miles (48,000 km) critical prevention, reb…
CX-9
Overall
Predominantly positive sentiment, with the vehicle widely praised for its exceptional driving dynamics, premium interior feel, and strong value proposition. Long-term owner reports consistently highlight its car-like, sporty handling, comfortable and quiet cabin, and upscale styling as key strengths. The consensus indicates high satisfaction among owners who prioritize driving enjoyment and a premium experience in a three-row family SUV.
Best version to buy
Higher trims such as Grand Touring and Signature are frequently mentioned for maximizing luxury features, premium materials, and technology content. The Signature trim, in particular, is associated with a highly upscale interior experience.
Known issues
- ⚠Cylinder head cracking / coolant leak in 2.5T engine: A design/manufacturing defect leading to coolant leaking into the engine, potentially causing catastrophic failure.
- ⚠High oil consumption in some later models: Mentioned alongside the cylinder head issue as a potential problem for some vehicles. Frequency: recurrent.
- ⚠Wide turning radius: Noted as requiring adjustment due to the vehicle's length. Frequency: isolated.
The verdict
The Acura MDX is the better choice for most buyers.
It has more power on its best-equipped version than the Mazda CX-9, based on the data above. If efficiency matters more to you than outright power, the Mazda CX-9 is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Acura MDX or the Mazda CX-9?
Owner reports show similar reliability sentiment for the Acura MDX and the Mazda CX-9. Check the known issues listed above for specific differences between the two.
Which is better for families, the Acura MDX or the Mazda CX-9?
Data on family-specific factors like cargo space is limited for one or both models, but based on available reports, both are positioned as practical daily drivers. Check the specs table above for seating and body type.
Which has better fuel economy, the Acura MDX or the Mazda CX-9?
Fuel consumption data is limited for one or both models. Check the specs table above for the figures available on each catalogued version.
Which is cheaper to maintain, the Acura MDX or the Mazda CX-9?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Acura MDX than the Mazda CX-9. See the known issues comparison above.