A-Premium Crankcase Vent Valve Breather Hose Kit for BMW inline-six (E36/E39/E46/E83/E85) — Complete OEM-fit PCV kit

The A-Premium Crankcase Vent Valve Breather Hose Kit is a complete PCV ventilation assembly designed to replace worn crankcase valves, hoses and separators on select BMW six-cylinder models.

This all-in-one kit gathers the valve, hoses, return pipe and oil separator needed to restore proper crankcase ventilation on a range of BMW E36, E39, E46, E83 and E85 vehicles with inline-six engines. Each component is engineered to match original-equipment fit and routing so installation is straightforward and the system performs reliably under typical road conditions.

Which BMW models and engines will this kit fit?

This kit fits many BMW six-cylinder models across several chassis generations, provided the vehicle is not equipped with Cold Weather packages. Confirm part compatibility by matching model year and engine displacement.

• E46 Series: 320i (2001–2005, L6 2.2L), 323Ci/323i (1999–2000, L6 2.5L), 325Ci/325i/325xi (2001–2006, L6 2.5L), 328Ci/328i (1999–2000/2000, L6 2.8L), 330Ci/330i/330xi (2001–2006, L6 3.0L).
• E39/E60 Series: 525i (2001–2005, L6 2.5L), 528i (2000, L6 2.8L from 1/00), 530i (2001–2005, L6 3.0L).
• E83 Series (X3): 2.5L and 3.0L inline-six (2004–2006). E36/Z3 and E85/Z4 six-cylinder variants (2000–2005) where applicable.

What components are included and what are their reference numbers?

The kit contains every major part you'd remove when replacing a failed PCV assembly, organized to simplify replacement and reduce parts hunting.

• Crankcase valve to oil dipstick tube — Part# 11157532649 / 11157532629 / 46106.
• Crankcase valve to crankease breather hose — Part# 11617504535 / 46045.
• Return pipe (oil return) — Part# 11617504536 / 46064.
• Crankcase valve to valve cover hose — Part# 11611432559 / 46044.
• Crankcase pressure regulator valve and oil separator — Part# 11617501566 / 11617533400 / 46063.

How does this kit make replacement easier than sourcing individual parts?

Buying the full A-Premium kit eliminates compatibility guessing and multiple orders; components are designed to match OEM specifications and routing so you can replace the entire ventilation circuit in one service session.

• Complete set avoids missing pieces and mismatched fittings.
• Parts engineered for OEM-like dimensions and connection points.
• Simple install reduces labor time compared with piecemeal replacements.

What quality assurances and warranty coverage come with the product?

A-Premium backs this PCV assembly with a one-year unlimited-mileage guarantee. The design relies on durable materials and precision molding to meet expected road use, and the warranty gives you recourse if a manufacturing defect appears within the coverage period.

• One-year unlimited-mileage warranty from A-Premium.
• Manufactured to match original part specifications for fit and function.
• Sold as a complete kit to lower the risk of installation-related failures.

Who is this for: This A-Premium Crankcase Vent Valve Breather Hose Kit is intended for BMW owners, mechanics and enthusiasts who need a straightforward replacement for a failing PCV system on select inline-six E36, E39, E46, E83 and E85 models. Choose this kit if you want an OEM-style fit, all necessary hoses and valve hardware in one package, and a backed warranty to protect your investment.