11127552281 / 11127548196 PCV Membrane for BMW N52, N52N, N52K, N52T, N51, N53
This PCV membrane is designed for BMW N52, N52N, N52K, N52T, N51 and N53 engines using OEM references 11127552281 and 11127548196. It replaces the failed diaphragm inside the valve cover PCV unit and helps restore correct crankcase ventilation.
This product is the standalone membrane only. It is intended for vehicles where the PCV cover design allows membrane replacement and is not a complete valve cover assembly.
OEM / Reference Numbers
Primary OEM numbers:
- 11127552281
- 11127548196
Secondary OEM / reference numbers:
- No additional OEM or reference numbers are specified on this product page.
Product reference:
- SKU: KL111275522811
Part Type
- PCV membrane
- valve cover diaphragm
- crankcase ventilation membrane
- engine breather diaphragm
- standalone PCV diaphragm
What This Part Does
The PCV membrane regulates crankcase pressure and controls oil vapor and blow-by gas flow through the valve cover ventilation system. When the membrane fails, oil mist can enter the intake, oil consumption may increase, and crankcase ventilation faults can appear.
Replacing the failed diaphragm helps restore pressure regulation and supports proper PCV function while keeping the existing valve cover in service.
Compatible Vehicles
This PCV membrane is listed for BMW vehicles with N52, N52N, N52K, N52T, N51 and N53 engine applications.
- BMW 1 Series E87
- BMW 3 Series E90 / E92
- BMW 5 Series E60
- BMW 6 Series E63
- BMW Z4 E85
Engine / Engine Family
- BMW N52
- BMW N52N
- BMW N52K
- BMW N52T
- BMW N51
- BMW N53
Common Symptoms of Failure
- oil mist in the intake system
- increased oil consumption
- crankcase ventilation fault codes
- rough or unstable idle
- whistling or suction noise from the valve cover area
- vacuum leak symptoms
- incorrect crankcase pressure
Why Choose This Replacement
- Targets exact repair intent for 11127552281 and 11127548196
- Standalone membrane for valve cover PCV repair
- Cost-effective alternative to replacing the complete valve cover when only the diaphragm has failed
- Helps restore crankcase ventilation and pressure regulation
- Suitable for BMW N52, N51 and N53 engine family applications
Important Before Ordering
- Check that your original PCV / valve cover reference matches 11127552281 or 11127548196.
- Confirm that your vehicle uses a compatible BMW N52, N52N, N52K, N52T, N51 or N53 engine.
- Compare the membrane design with the diaphragm in your existing valve cover PCV unit.
- This product is a PCV membrane only, not a complete repair kit with cap unless your existing cap is reusable.
- If your vehicle still has the original plastic sealed cap, verify whether a full repair kit with metal cap is required.
FAQ
What do BMW 11127552281 and 11127548196 fit?
BMW 11127552281 and 11127548196 are listed for PCV membrane repair on BMW N52, N52N, N52K, N52T, N51 and N53 engine applications.
Is 11127548196 the same type of part as 11127552281?
Both numbers are listed as primary references for this standalone PCV membrane application. Confirm compatibility by the original valve cover and diaphragm design.
What does this BMW PCV membrane do?
The membrane regulates crankcase pressure and controls blow-by gas and oil vapor flow through the valve cover PCV system.
What symptoms indicate PCV membrane failure on BMW N52 or N53 engines?
Common symptoms include oil mist in the intake, increased oil consumption, crankcase fault codes, rough idle, whistling noise, vacuum leak symptoms and incorrect crankcase pressure.
Is this a complete valve cover assembly or full repair kit?
No. This product is the standalone PCV membrane only. It is not a complete valve cover assembly and does not include a replacement cap.
How do I confirm compatibility before ordering?
Confirm OEM number 11127552281 or 11127548196, check the engine type, and compare the membrane with the diaphragm installed in your current PCV unit.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings