Volvo 1.6D D4164T Valve Cover PCV Diaphragm, 51 mm - 31259241

In the listed Volvo 1.6D D4164T applications, this 51 mm diaphragm belongs to the crankcase ventilation valve in the cylinder head cover. References 31259241 and 30711484 are used to identify the specified application.

Vehicle Applications

• Volvo C30 - 2007-2011.
• Volvo V50 - 2005-2012.
• Volvo V70 - 2009 onward.
• Volvo S80 - 2009-2012.

When to Inspect the Membrane

• Oil leakage or misting around the valve cover.
• A burnt-oil smell after the engine warms up.
• Unmetered air through the cover or crankcase ventilation system.
• Unstable idle.
• Increased oil consumption.
• Whistling, abnormal vacuum or mixture faults linked to an air leak.

Inspect the cover, membrane and ventilation system to identify the source of the fault. These symptoms do not confirm that the membrane alone needs replacement.

Assembly and Related References

31259241, 30711484, 9660281080, 36050300.

Repair Scope

The diaphragm can be serviced separately when the surrounding cover and housing are sound. Inspect the other sealing components before choosing the repair; replacing a membrane does not correct damage elsewhere in the assembly.

Important Before Ordering

Compare the installed assembly reference, membrane design and dimensions before ordering. Check the housing and ventilation hoses for damage; a membrane alone may not resolve a cracked housing.

FAQ

Is this the 51 mm Volvo cover diaphragm?

Yes. The listed diameter is 51 mm for the specified 1.6D D4164T applications.

Which years are listed for Volvo V50?

Volvo V50 is listed for 2005-2012. Confirm the installed cover reference.

Does the Volvo V70 application have a closing year?

The listed V70 range starts in 2009 without a closing year. Match the engine, cover reference and membrane design before ordering.

Part Number / PN

31259241, 30711484, 9660281080, 36050300

SKU: KL31259241.

• 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