VNE 4008211 Engine Crankcase Breather Hose Check Valve

OE-Style Crankcase Breather Valve

The VNE 4008211 engine crankcase breather hose check valve is an OE supplier replacement for crankcase ventilation service. It is built for vehicles using OE number 06B103245 and supports proper one-way flow in the crankcase ventilation system.

• OE supplier replacement for factory-style fit and function
• Engine crankcase breather hose check valve for emission control service
• Direct application for Volkswagen Passat and Audi A4 platforms listed below
• Cross-reference part number: 06B103245

Vehicle Fitment

• Fits 2003-2005 Volkswagen Passat, N/A
• Fits 2002-2003 Audi A4, N/A
• Fits 2002-2003 Audi A4 Quattro, N/A

Function and Common Symptoms

This crankcase breather hose check valve helps regulate airflow in the crankcase ventilation circuit. On the Volkswagen Passat and Audi A4 applications listed here, a worn or sticking valve can contribute to crankcase pressure problems and drivability concerns.

• Excess crankcase pressure
• Oil vapor control issues in the ventilation system
• Rough idle related to ventilation flow problems
• Vacuum leakage at the breather circuit
• Check valve sticking open or closed

Installation Notes

Verify the OE number 06B103245 before installation and compare the original valve shape, hose connections, and routing on the vehicle. Inspect the surrounding breather hoses for cracks, soft spots, or contamination before reassembly.

Quality Assurance

VNE identifies this part as an OE supplier component, indicating factory-style engineering focus for the listed Volkswagen Passat, Audi A4, and Audi A4 Quattro applications. Confirm fitment by model year and OE reference before purchase.