# 2014-2016 BMW X6 xDrive40d The second-generation X6 xDrive40d pairs BMW's controversial "Sports Activity Coupe" styling with a smooth 3.0-liter inline-six turbodiesel producing 309 hp and 465 lb-ft of torque. This polarizing fastback SUV remains infamous for prioritizing style over practicality, with compromised rear headroom and cargo space. Reviewers praise its surprising athleticism, refined diesel engine, and luxurious cabin, though criticize its limited visibility and niche appeal. The diesel delivers excellent fuel economy (mid-20s MPG) and effortless highway cruising. **Best suited for:** Buyers prioritizing style and performance over utility; empty-nesters or couples who want SUV stance with sports-car flair; highway commuters appreciating diesel torque and efficiency. Note that U.S. models never received this diesel variant—it was primarily sold in Europe, Middle East, and select markets.
The X6 xDrive40d diesel faces potential DEF system issues and expensive diesel particulate filter replacements ($2,000-4,000). Turbocharger problems are common around 80,000 miles. Insurance costs run 15-20% above average due to high repair costs and theft risk. Maintenance intervals are pricey but typical for BMW luxury SUVs. Diesel variants prove more reliable than gasoline counterparts.
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