Acura
MDX
BMW
X5
Acura MDX vs BMW X5: 2024 Comparison
The short answer
Based on available data, the BMW X5 comes out ahead of the Acura MDX on fuel economy and 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 However, criticism includes outdated technology by modern standards (no Bluetooth, basic infotainment in early years), thirsty fuel consumption (16-19 MPG combined), transmission issues affecting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…
X5
Overall
Sentiment is mixed and heavily dependent on the specific generation, powertrain, and ownership approach. For the current G05 generation (2019+), the inline-six (B58) powertrain is very frequently praised for its performance and noted reliability, with some owners calling it "super reliable" and "the best inline 6 in the world." The driving experience is consistently highlighted as a major strength, described as "performance oriented" with superior ride, handling, and road feel compared to key competitors. However, significant criticism is directed at the plug-in hybrid variant (50e), with one detailed owner report citing a "terrible" experience involving multiple, repeated drivetrain failures and extensive dealership visits.
Best version to buy
Insufficient owner data available to declare a single "best" version. Strong, recurrent praise is directed at models equipped with the B58 inline-six engine (e.g., xDrive40i), which is lauded for its reliability and performance.
Known issues
- ⚠. For long-term ownership (5-10 years), setting aside a significant fund for maintenance and repairs is considered mandatory. A pre-purchase inspection by a specialist is critical, especially for older or high-mileage examples.
The verdict
The BMW X5 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Acura MDX, based on the data above. If power matters more to you than running costs, the Acura MDX is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Acura MDX or the BMW X5?
Owner reports show similar reliability sentiment for the Acura MDX and the BMW X5. Check the known issues listed above for specific differences between the two.
Which is better for families, the Acura MDX or the BMW X5?
The Acura MDX seats more passengers than the BMW X5 on its catalogued best-equipped version. Body type also differs: the Acura MDX is classed as a SUV, the BMW X5 as a SAV.
Which has better fuel economy, the Acura MDX or the BMW X5?
The BMW X5 is more fuel-efficient on paper: 11.5-12.5 L/100km combined versus 12.4 L/100km for the Acura MDX, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Acura MDX or the BMW X5?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the BMW X5 than the Acura MDX. See the known issues comparison above.