Vaico V10-3559 Engine Crankcase Vent Valve

Crankcase Vent Valve for Audi Applications

The VAICO V10-3559 engine crankcase vent valve is a pneumatic emission control component built for crankcase ventilation service on select Audi models. It is sized at 76 mm high, 90 mm long, and 56 mm wide, with a lightweight 0.090 kg construction for OE-style replacement needs.

Compatible With Audi A6, Audi A6 Quattro, Audi S4, Audi A4, Audi A4 Quattro, Audi S6, Audi 200, and Audi 200 Quattro applications listed below. The VAICO V10-3559 is also cross-referenced to OE part numbers 034 145 710 A and 034 145 710 B for the same application.

Key Features

• Brand: VAICO / Vaico
• Part number: V10-3559
• Category: Emission Control > Crankcase Ventilation System
• Part type: Engine crankcase vent valve
• Operating mode: Pneumatic
• Dimensions: 76 mm height, 90 mm length, 56 mm width
• Lightweight design at 0.090 kg

Product Details

VAICO V10-3559 is a crankcase ventilation valve used in the engine emission control system to manage crankcase pressure and routing within the breather circuit. The VAICO product line is positioned for OE-style replacement parts, and this component is listed for multiple Audi platforms spanning 1989 through 2005. If you are sourcing a crankcase vent valve for an Audi A6, Audi A4 Quattro, or Audi S4, this part number should be checked against the original OE reference before installation.

What This Part Helps Address

• Crankcase pressure control issues
• Breather system flow irregularities
• Oil vapor routing problems in the ventilation circuit
• Emission control faults related to crankcase ventilation
• Replacement needs for worn or damaged vent valve assemblies

Installation Notes and Tips

• Verify the OE number and engine application before ordering: V10-3559.
• Confirm the pneumatic operating mode matches the original crankcase ventilation setup.
• Inspect connected breather hoses and seals during replacement to avoid repeat leaks.
• Use the vehicle-specific fitment list below to confirm the exact Audi model and year.

Fitment

• Fits 2000-2005 Audi A6, N/A
• Fits 2000-2004 Audi A6 Quattro, N/A
• Fits 2000-2002 Audi S4, N/A
• Fits 1997-1999 Audi A4, N/A
• Fits 1997-1999 Audi A4 Quattro, N/A
• Fits 1996 Audi S6, N/A
• Fits 1989-1991 Audi 200, N/A
• Fits 1989-1991 Audi 200 Quattro, N/A

Quality Assurance

VAICO parts are cataloged for OE-style replacement use, and this V10-3559 crankcase vent valve is specified with published dimensions and operating mode details to support accurate application matching. Confirm fitment against the original part number and vehicle configuration before installation.