Where is the crankcase ventilation valve located on the Passat Lingyu?

1 Answers
DelEden
07/29/25 4:05pm
Volkswagen Passat's crankcase ventilation valve is located below the intake manifold. Precautions for crankcase usage: If the crankcase ventilation check valve is damaged, it will cause increased pressure in the crankcase, excessive oil consumption, and affect exhaust emissions. Timely inspection and replacement are required if the crankcase ventilation valve is damaged or malfunctioning. Function of the crankcase: The crankcase is one of the most critical components in the engine. It bears the force transmitted from the connecting rod and converts it into torque output through the crankshaft to drive other engine accessories. The crankcase is subjected to centrifugal forces from rotating masses, periodically varying gas inertial forces, and reciprocating inertial forces, causing the crankshaft to endure bending and torsional loads. It also prevents oil deterioration and leakage from the crankshaft oil seals and crankcase gaskets.
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