17. 3rd Gen BMW X3

The third-generation BMW X3 is a well-built, refined compact luxury SUV that combines strong driving dynamics with impressive practicality and modern technology. Its 2.0-liter turbocharged four-cylinder and 3.0-liter turbocharged B58 inline-six provide plenty of performance, while the ZF eight-speed automatic and xDrive all-wheel-drive system make the X3 equally comfortable on the highway and capable in poor weather. Build quality is generally excellent, with the body, suspension, and major mechanical components aging well. The M40i, in particular, stands out for its smooth and powerful B58 inline-six, which has earned a strong reputation for durability and is capable of very high mileage when properly maintained.

Like most modern German vehicles, however, the X3 is sensitive to maintenance and can become expensive when problems are allowed to accumulate. Common issues include oil and coolant leaks from aging plastic components and gaskets, carbon buildup, fuel-injector problems, timing-chain tensioner wear on the four-cylinder, and VANOS issues on the B58. The ZF transmission should also be serviced despite BMW’s “lifetime” fluid claims, while earlier models can experience transfer-case actuator and rear differential mounting issues. Overall, the third-generation X3 ranks well for reliability, particularly with the B58-powered M40i, but buyers should prioritize a thorough maintenance history and budget for higher repair costs than they would with a comparable Japanese or Korean SUV.