X4XZ PCV Valve Oil Separator for Audi 2.0L — Direct-Fit Replacement with Gasket & 5 O-Rings, Heat-Resistant

This X4XZ oil separator (PCV valve assembly) is engineered as a direct-fit replacement for Audi 2.0L engines found in a range of A4, A5, A6, Q3, Q5 and Allroad models. Built with heat- and oil-resistant components and shipped with a new gasket and O-rings, the unit restores the crankcase ventilation path and replaces worn or clogged separators that can fail over time.

How does this part affect engine performance?

A functioning oil separator helps manage blow-by gases and keeps oil out of the intake tract, reducing deposits and maintaining more consistent combustion. Replacing a degraded separator prevents oil accumulation in intake components and can help avoid symptoms like increased oil consumption and rough idling.

• Restores separation of oil from crankcase ventilation gases
• Reduces oil transfer into intake and combustion chambers
• Helps maintain stable idle and fuel burn characteristics
• Includes gasket and five O-rings for a sealed installation

Which vehicles and part numbers is this compatible with?

This X4XZ assembly matches several Audi OE references and fits many 2.0L turbocharged gasoline applications across model years. Confirm fitment by comparing the OE number or checking the pictured vehicle list before purchase to ensure direct compatibility.

• OE references: 06H103495AE, 06H103495J, 06H103495AK
• Fits Audi A4, A5, A6, Q3, Q5 and Allroad 2.0L 4-cylinder variants
• Refer to the second main product image for more detailed vehicle coverage
• Designed as a direct replacement for original equipment separators

What is included and how difficult is installation?

The kit ships with the oil separator body plus a new gasket and five O-ring seals so you can replace all engine-side seals at once. Installation is straightforward for someone with basic mechanical skills; no instruction manual is included, but the part is a bolt-in design that follows OE mounting locations.

• Package contents: oil separator x1, gasket x1, O-ring seals x5
• Bolt-on replacement — uses existing mounting points and hoses
• Recommended tools: basic hand tools and torque specs per service manual
• Professional installation recommended if you lack automotive experience

How durable is the X4XZ oil separator under engine conditions?

Materials are chosen to withstand elevated engine bay temperatures and continuous exposure to oil and vapors, offering a reliable service life compared with a worn OEM unit. The construction aims to resist cracking and seal failure that can occur from thermal cycling and oil contamination.

• Heat- and oil-resistant materials for long-term durability
• Precision fit reduces risk of vacuum leaks and oil seepage
• Manufactured to match OE mounting and flow characteristics
• Backed by one-year product support from the seller

Who is this for: This X4XZ PCV valve oil separator is intended for Audi owners, DIY mechanics and repair shops needing a reliable replacement for failed or aging crankcase vent separators on 2.0L gasoline engines. If you detect oil in the intake, higher-than-normal oil use, or a check-engine light related to PCV codes, this direct-fit unit plus seals offers a practical repair option to restore proper ventilation and protect intake components.