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What Causes Oil Leakage in the Tiguan?

1 Answers

LaPaisley

07/29/25 10:17pm

Oil leakage in cars is generally caused by damage to engine cylinder gaskets, oil pan gaskets, or sealing rings, failure of crankshaft front/rear or camshaft oil seals, loose fastening screws, aging seals on oil coolers and oil filter bases, among other reasons. Valve cover oil leakage: This occurs more frequently in vehicles approximately 5 years old, requiring replacement of the valve cover gasket. Engine oil pan leakage: This is due to aging of the oil pan gasket, necessitating removal of the oil pan, replacement of the gasket, and reapplication of sealant. Crankshaft oil seal leakage: Replacing the crankshaft oil seal is a complex operation involving extensive disassembly and high labor costs. If the leakage is not severe (such as minor seepage), one may choose to delay repairs.

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