Fix BMW N57 PCV Issues Without Replacing the Entire Valve Cover!
Stop oil consumption, rough idle, and engine noise without replacing the full valve cover. This Klifex PCV repair kit replaces the failed diaphragm and cap — the most common issue in BMW N57 diesel engines.
Over time, the original membrane fails due to heat and pressure, causing vacuum imbalance, oil being drawn into the intake, and unstable engine operation. This kit restores proper crankcase ventilation and engine performance quickly and cost-effectively.
Important Note! Please verify your engine code and OEM part number before purchase to ensure compatibility.
Common Failure Symptoms:
• Increased oil consumption
• High-pitched whistling noise at idle
• Rough or unstable engine idle
• Oil leaks from gaskets and seals
• Pressure imbalance in the crankcase
Why This Repair Kit Works:
• Restores proper crankcase pressure regulation
• Eliminates vacuum leaks and engine noise
• Reduces oil consumption and improves engine stability
• Prevents further damage to seals and intake system
• Cost-effective alternative to full valve cover replacement
Durable Construction:
• Made from high-grade oil-resistant elastomer
• Designed for diesel engine heat and pressure conditions
• Resistant to cracking, hardening, and wear
• Long service life compared to OEM membrane
Perfect Fitment:
• Direct replacement diaphragm and cap
• Matches OEM specifications
• Replaces valve cover part numbers: 11128578811;11127823181;11128515745;11127800309;11128507607;11128515746;11127812894;11128510234
Compatibility: Engine Codes: N57; N57N; N57T; N57S; N57X
3 Series: E90; E91; E92; E93; F30; F31; F34 GT
4 Series: F32; F33; F36
5 Series: F07 GT; F10; F11
7 Series: F01; F02
X Series: X3 (F25); X4 (F26); X5 (E70; F15); X6 (E71; F16)
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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