PCV Valve Diaphragm – Universal | BMW VAG Peugeot Citroen Ford Volvo | Price per Piece

PCV Valve Diaphragm for Valve Covers and Oil Separators

This universal PCV valve diaphragm is designed for repairing crankcase ventilation components in valve covers and oil separators across BMW, VAG, Peugeot, Citroen, Ford, Volvo and other platforms. It replaces a torn, hardened or worn membrane inside the existing PCV valve or oil separator unit.

This product is supplied as a diaphragm only. It is not a complete valve cover, complete PCV valve or full oil separator assembly.

OEM / Reference Numbers

Primary OEM number:

• No exact OEM number is specified for this universal diaphragm.

Product reference:

• SKU: PCV001

Part Type

• PCV valve diaphragm
• universal PCV membrane
• valve cover diaphragm
• oil separator membrane
• crankcase ventilation diaphragm
• engine breather membrane

What This Part Does

The PCV diaphragm helps regulate crankcase pressure and controls blow-by gas flow through the crankcase ventilation system. When the original diaphragm tears or stiffens, the system can lose pressure control and cause oil consumption, oil leaks, rough idle or crankcase ventilation faults.

Replacing the failed diaphragm helps restore pressure control in the existing valve cover or oil separator unit when the housing is still usable.

Compatible Vehicles

This universal PCV valve diaphragm is listed for multiple vehicle platforms and should be selected by matching the original diaphragm diameter and design.

• BMW
• VAG: Audi, Volkswagen, Skoda, Seat
• Peugeot
• Citroen
• Ford
• Volvo
• Other applications using a compatible PCV diaphragm design

Engine / Engine Family / Technical Detail

• Universal application by diameter and design
• Available in multiple diaphragm diameters
• Measure the original membrane before ordering

Common Symptoms of Failure

• oil consumption
• crankcase pressure faults
• oil leaks
• rough or unstable idle
• vacuum leak symptoms
• whistling noise from the PCV area
• oil vapor issues in the intake system

Why Choose This Replacement

• Universal repair option for valve covers and oil separators
• Suitable for multiple platforms when diameter and design match
• Cost-effective alternative to replacing the complete PCV valve, oil separator or valve cover when only the diaphragm has failed
• Supports targeted repair of the existing crankcase ventilation component
• Price is per one diaphragm piece

Important Before Ordering

• Measure the diameter of your original diaphragm before ordering.
• Compare the shape, edge design and installation style with your original membrane.
• This product is a universal PCV diaphragm only, not a complete assembly.
• Compatibility is confirmed by dimensions and design, not by exact OEM number.
• Check your valve cover or oil separator construction before purchase.

FAQ

• BMW
• SKODA
• Seat
• Volkswagen
• Audi
• Peugeot
• Citroen
• Ford
• Volvo

Returns and exchanges

Request a change-of-mind return within 14 calendar days of delivery, then send the goods within 14 calendar days of notifying us. Our voluntary return option applies to unused, uninstalled, complete goods in their original condition and packaging. Exchanges are subject to availability and agreement.

The customer pays change-of-mind return shipping. No restocking fee applies. Refunds and original delivery charges are handled under our Refund & Return Policy and applicable law.

Faulty, damaged or incorrect goods

Email contact-us@klifex.net with your order details and a description of the problem. These claims are separate from change-of-mind returns. Where we are responsible, we bear the required remedy and return costs. Installation alone does not remove mandatory defect rights.

Your legal rights

Applicable statutory rights take precedence, including EU/EEA and UK withdrawal rights and legal guarantees. Necessary inspection does not remove a statutory withdrawal right; deductions for excessive handling must reflect an actual, evidenced loss of value.

Contact us for the correct return address before shipping. Our legal address is not a return address.

Read the full Refund & Return Policy