Hyundai XG350 Problems: 5 Issues Every Owner Should Know
2001-2005 model years · 150+ owner reports · Updated April 2026
According to Au7o's analysis of 150+ owner reports, the 2001-2005 Hyundai XG350 has 5 documented known issues, with 1 rated critical. The most serious is Timing Belt Tensioner Failure (3.5L Sigma V6) ($500-$1,200 repair). The most commonly reported issue is Power Steering Pump Failure and Line Leaks with 150 owner reports. Across all issues, repair costs range from $150 to $1,200. DIY maintenance guides at au7o.io.