What causes Volkswagen engine oil leakage?
2 Answers
Causes of Volkswagen engine oil leakage: Improper assembly, unclean mating surfaces, damaged or displaced gaskets, or failure to follow installation procedures as specified. Other causes of oil leakage: When engine oil is overfilled, the pressure between various components inside the car becomes excessive. Frequent driving under such high pressure accelerates the aging of internal components. Particularly for crankshaft oil seals, excessive pressure and severe aging can lead to oil leakage. Hazards of oil leakage: Insufficient oil can easily cause bearing seizure, cylinder scoring, and in severe cases, crankshaft breakage leading to engine block damage. Excessive oil affects vehicle performance and may lead to oil carryover into combustion chambers, resulting in oil burning.
Speaking of Volkswagen engine oil leaks, I've had a similar experience. My car developed this issue after eight or nine years of use, mainly due to aging rubber seals like crankshaft oil seals and valve cover gaskets. Over time, these parts harden and crack, allowing oil to seep through the gaps. Additionally, excessive internal engine pressure can also cause oil leaks, especially when the PCV system is clogged. The accumulated oil pressure overwhelms the seals. I recommend first checking for oil stains on the ground and feeling if the engine underside is wet. Addressing this promptly is crucial, as severe oil loss can lead to engine overheating and damage, resulting in hefty repair bills. Regular oil changes and seal inspections can prevent this. While maintenance costs for older cars are high, safety comes first—it's best to leave the repairs to professional technicians.
