A turbocharged 2.3-liter inline-four gasoline engine is standard in most markets, with a 2.2-liter turbodiesel offered in select European markets.
During its production from 2007 to 2012, Mazda provided two main engine configurations depending on region: a gasoline turbo for the global market and a diesel option for Europe and a few other territories. This article explains those options and their typical characteristics.
Engine options by market
Gasoline engine: 2.3-liter turbocharged inline-four (MZR 2.3 DISI)
This four-cylinder gasoline engine uses direct injection (DISI) and was the standard powerplant for the CX-7 in North America and most other regions. It typically produced around 244 horsepower and about 258 lb-ft of torque, depending on market and model year. It was commonly paired with a five- or six-speed automatic transmission (with some markets offering a manual in earlier trims).
Diesel engine: 2.2-liter turbodiesel (MZR-CD)
A turbodiesel version was offered in selected European markets and other regions outside North America. The 2.2-liter diesel prioritizes high torque and fuel economy, with power and torque figures varying by year and market. It was not offered in the United States.
Summary
The Mazda CX-7's engine lineup centered on two configurations: a global 2.3-liter turbocharged gasoline engine and a European-market 2.2-liter turbodiesel. The choice depended on region and model year, reflecting Mazda's approach to balancing performance and efficiency for different markets.