What are the defects of the N46 engine?
1 Answers
The N46 engine has issues with oil leaks from the valve cover gasket, cylinder head gasket, and burning oil due to aging valve stem seals. Below are the relevant details: 1. Sealing performance: This engine operates at a temperature of around 110°C. After driving 40,000 to 60,000 kilometers, the sealing performance of some rubber seals deteriorates. 2. Rubber hardening and brittleness: The valve cover gasket, which frequently operates under high temperature and pressure, causes the rubber to harden and become brittle over time, leading to reduced sealing performance and oil leaks from the valve cover gasket. 3. Deterioration of oil seal performance: The decline in sealing performance of the valve stem seals results in severe oil burning in the N46 engine, consuming approximately 1 liter of oil every 1,000 kilometers.