2007. 2007 Mazda CX-7 Problems. Find the most common issues based on car owner complaints. Get Your Car Fixed. Find a high quality auto repair shop or dealer near you. View Nearby Shops. Report a Problem. Share your car problem with the RepairPal community. Average Cost to Fix: $1,900. Average Mileage: 107,000 mi. The 2007 Mazda CX-7 has 786 problems & defects reported by CX-7 owners. The worst complaints are engine, AC / heater, and lights IUaMH.