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

The X4XZ PCV Valve Engine Crankcase Vent Valve Oil Separator replaces worn oil-separator assemblies to restore crankcase ventilation and control hydrocarbon blow-by in compatible Audi 2.0L engines.

This direct-fit oil separator is designed for Audi models using the OE references 06H103495AE, 06H103495J, and 06H103495AK. Built to handle hot, oil-laden crankcase gases, the unit separates oil from vapors before they re-enter the intake, helping reduce deposits on intake components and maintaining more consistent engine operation. The kit arrives with the separator housing plus a gasket and five O-ring seals for a complete replacement that’s ready to install.

How does this oil separator help my Audi run cleaner?

The separator traps oil and returns it to the crankcase while allowing vented vapors to flow through the PCV system rather than contaminating the intake tract. By reducing oil carryover and vapors, it limits oily residue that contributes to intake valve and turbocharger deposits. This can make scheduled maintenance easier and help preserve engine efficiency.

• Replaces OEM separators for correct fit and flow characteristics.
• Reduces oil mist sent into the intake system.
• Helps limit sludge and carbon buildup on intake surfaces.

Which Audi models and engine types are compatible with this part?

This X4XZ oil separator fits a wide range of Audi 2.0L four-cylinder gasoline and flexible-fuel engines from model years roughly 2012–2018, depending on the vehicle and drivetrain. Always verify the listed OE numbers against your vehicle’s parts reference or compare to the unit being replaced to confirm compatibility.

• OE references: 06H103495AE, 06H103495J, 06H103495AK.
• Common fits: A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, Q3, Q3 Quattro, Q5, and Allroad 2.0L engines.
• See product images and your vehicle’s parts label to confirm before purchase.

What comes in the box and is installation difficult?

The kit includes the oil separator housing, one replacement gasket, and five O-ring seals so you can complete the swap without sourcing additional seals. No printed manual is included, but the part is a direct replacement for the factory assembly; basic mechanical skill and common hand tools are usually sufficient for installation.

• Included: oil separator x1, gasket x1, O-ring seals x5.
• Simple gasket and O-ring placement — follow vehicle service manual steps.
• If needed, professional installation is recommended for tight engine compartments.

How durable is the X4XZ oil separator under typical engine conditions?

Constructed from materials chosen to tolerate high under-hood temperatures and constant exposure to oil vapors, the X4XZ separator is built for longevity while performing the oil-vapor separation job. Quality assembly helps resist premature failure and maintains consistent ventilation until the next recommended service interval.

• Heat- and oil-resistant construction for long-term durability.
• Manufactured to meet typical OEM fit and functional standards.
• Backed by a one-year product service and 24-hour customer support.

Who is this for: The X4XZ PCV Valve Engine Crankcase Vent Valve Oil Separator is aimed at Audi owners and independent technicians who need an OE-compatible replacement for 2.0L four-cylinder models that use the 06H103495AE/J/AK family of parts. Choose this kit if you want a full-seal replacement set (separator, gasket, O-rings) to reduce oil carryover, restore proper crankcase ventilation, and avoid intake deposits — provided you confirm OEM reference numbers against your vehicle before ordering.