The most reliable used Mazda CX-5 model years are generally considered to be 2016, 2019 to 2021, and 2022 onward, as these combine strong reliability with improved technology and safety features. The 2020 model year, in particular, is noted for excellent reliability, with newer models from 2023 and 2024 also showing promise though they are relatively new. Common problems with used Mazda CX-5s include transmission issues (especially with Skyactiv-Drive automatics), diesel engine concerns such as Diesel Particulate Filter clogging and turbocharger failures, infotainment system freezing or touchscreen unresponsiveness, and suspension wear causing noisy front struts. With proper maintenance, a used Mazda CX-5 can last between 200,000 and 300,000 miles, equating to about 13 to 20 years of reliable service. Certified pre-owned (CPO) Mazda CX-5s are generally worth it because they come with extended warranties, typically covering up to 7 years or 100,000 miles on the powertrain, offering peace of mind. The average price for a used Mazda CX-5 varies by model year and condition, but CPO examples from recent years often range roughly between $23,000 and $35,000, depending on mileage and trim level.