Porsche Cayenne 4.8L M48.51 Oil Separator Diaphragm, 85 mm - 94810723653

A torn oil separator diaphragm can admit air that the MAF has not measured. This separate 85 mm membrane is for the Porsche Cayenne 4.8L M48.51 oil separator, associated with references 94810723653 and 94810723652.

Vehicle Applications

• Porsche Cayenne 4.8L - M48.51.

When to Inspect Crankcase Ventilation

• Whistling or excessive crankcase vacuum.
• Unstable idle.
• Increased oil consumption.
• Oil deposits in the intake.
• Exhaust smoke after warm-up.
• Mixture faults associated with unmetered air.

These symptoms call for inspection of the ventilation valve and housing; they do not establish the cause on their own.

Other Signs and Repair Scope

The membrane can dry out and tear with age. Difficult starting and misfires may accompany the resulting air leak. A whistling sound near the separator calls for inspection, rather than confirming a torn membrane by itself. A damaged membrane may also admit road dust, contributing to engine wear.

Assembly and Related References

94810723652, 94810723653.

Repair Scope

This separate membrane allows the failed component to be serviced while retaining a sound separator housing.

First Start After Replacement

The engine may initially run unevenly while the ECU adjusts its fuel maps after the repair. Let it run for a while, then restart it.

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

Which engine designation is specified?

Porsche Cayenne 4.8L M48.51 is specified for this membrane.

What is the diaphragm diameter?

The specified diameter is 85 mm.

Which references should be matched?

Compare 94810723653 and 94810723652 with the installed assembly.

Why can the engine run unevenly after replacement?

The ECU may need time to adjust its fuel maps after repair. The instructions say to let the engine run for a while and then restart it.

Part Number / PN

94810723652, 94810723653

SKU: KL94810723653.

Replacement Instructions

• Remove the oil separator.
• Replace the torn diaphragm with the new membrane.
• Reassemble in reverse order.

• Porsche

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.

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