PCV Membrane – BMW M52 E36 E39 E38 (pre-1998) | OEM 11151703484

11151703484 PCV Membrane for BMW M52 E36, E39, E38

This PCV membrane is designed for BMW M52 engines before 1998 using OEM reference 11151703484. It replaces the worn diaphragm inside the crankcase ventilation valve and helps restore correct PCV / oil separator function.

The membrane is intended for targeted repair of the existing crankcase ventilation system. It is not a complete crankcase ventilation valve, complete oil separator, or full breather assembly.

OEM / Reference Numbers

Primary OEM number:

• 11151703484

Secondary OEM / reference numbers:

• No additional OEM or reference numbers are specified on this product page.

Product reference:

• SKU: KL11151703484

Part Type

• PCV membrane
• crankcase ventilation diaphragm
• oil separator diaphragm
• engine breather membrane
• CCV diaphragm
• BMW M52 PCV repair component

What This Part Does

The PCV membrane helps regulate crankcase pressure and controls the flow of blow-by gases through the crankcase ventilation system. When the original rubber membrane loses elasticity, becomes hard, cracks or breaks, the PCV valve can no longer maintain correct pressure and ventilation flow.

Replacing the failed membrane helps restore the function of the existing crankcase ventilation valve, supports stable engine operation and helps reduce oil consumption caused by PCV diaphragm failure.

Compatible Vehicles

This PCV membrane is listed for BMW M52 engine applications before 1998.

• BMW E36 with M52 engine before 1998
• BMW E39 with M52 engine before 1998
• BMW E38 with M52 engine before 1998

The product text also references BMW E39 528i and BMW E38 728i PCV repair context. Compatibility should be confirmed by checking OEM number 11151703484 and comparing the membrane design with the original part.

Engine / Engine Family / Technical Detail

• BMW M52 before 1998
• Replacement rubber PCV membrane
• Designed for crankcase ventilation valve repair

Common Symptoms of Failure

• uneven engine operation
• rough or unstable idle
• third-party noises or whistling from the PCV area
• increased oil consumption
• increased fuel consumption
• reduced engine dynamics
• incorrect crankcase ventilation pressure
• oil separator or CCV valve malfunction symptoms

Why Choose This Replacement

• Targets the exact repair intent for 11151703484
• Replaces the failed PCV membrane inside the existing ventilation valve
• Cost-effective alternative to replacing the complete valve when only the membrane has failed
• Helps restore crankcase pressure regulation and PCV system function
• Suitable for BMW M52 crankcase ventilation repair before 1998

Important Before Ordering

• Check that your original crankcase ventilation component matches 11151703484.
• Confirm that your vehicle uses a BMW M52 engine before 1998.
• Compare the membrane shape and installation design with the diaphragm in your original valve.
• This product is a PCV membrane only, not a complete crankcase ventilation valve or oil separator assembly.
• Verify compatibility by OEM number, engine type and original part design before ordering.

FAQ

• BMW

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