Car Problem Reports

Mercedes-Benz 300SEL Repair Leaks From Head Gasket/Timing Cover Gasket Before Oil and Coolant Intermix

Mercedes-Benz 300SEL Problem
4 Reports
Me Too

Model Years Affected: 1990, 1991

Average Mileage: 141,000 mi (75,000 mi - 207,000 mi)


Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.

  • Visitor, , 75,000 mi

    To day I was told by my mechanice that the 1990 merecedes 300 sel need head gasket
    how much will take to fix it. if I will open the head gasket my self and have the shop to fix for me and with the help other mechanice to put on for me.

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  • Visitor, , 207,000 mi

    head gasket leaking again. Had to be replaced about 50,000 miles ago. Leak is at front right of engine (Bermuda triangle) Oil leaks in this area are notorious because of poor engine design - horizontal and vertical gaskets coming together.

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