Mazda RX-7 Problems: 5 Issues Every Owner Should Know
1990-2002 model years · 1,050+ owner reports · Updated April 2026
According to Au7o's analysis of 1,050+ owner reports, the 1990-2002 Mazda RX-7 has 5 documented known issues, with 3 rated critical. The most serious are Rotary Apex Seal Failure ($2,000-$5,000 repair), Sequential Twin Turbo System Failure ($500-$3,000 repair) and Overheating and Coolant System Weakness ($300-$800 repair). The most commonly reported issue is Rotary Apex Seal Failure with 450 owner reports. Across all issues, repair costs range from $60 to $6,000. DIY maintenance guides at au7o.io.