Mercedes-Benz E-Class Problems: 12 Issues Every Owner Should Know
2003-2024 model years · 12,500+ owner reports · Updated April 2026
According to Au7o's analysis of 12,500+ owner reports, the 2003-2024 Mercedes-Benz E-Class has 12 documented known issues, with 8 rated critical. The most serious are M272 Balance Shaft Gear Wear ($2,000-$5,000 repair), 7G-Tronic Conductor Plate Failure ($500-$1,500 repair), Air Suspension Failure (W212) ($800-$3,000 repair), OM642 Diesel Oil Cooler Leak ($800-$2,500 repair), 48V Integrated Starter-Generator / DC-DC Converter Failure Causing Sudden Power Loss and No-Restart ($1,200-$4,500 repair), Front Brake Hose May Rupture or Leak, Reducing Braking Performance ($0-$600 repair), Fuel Pump Delivery Module Failure Leading to Extended Crank, Stalling, or No-Start ($900-$1,800 repair) and Panoramic Sunroof Glass Bonding Defect Can Cause Panel Separation or Fly-Off ($0-$2,500 repair). The most commonly reported issue is M272 Balance Shaft Gear Wear with 2,600 owner reports. Across all issues, repair costs range from $0 to $5,000. DIY maintenance guides at .