PCV Valves & Oil Separators
Restore idle stability and regulate crankcase pressure. A failed pressure control valve (PCV) or oil separator is a common culprit for vacuum leaks, rough idling, and excessive oil consumption in Audi and VW engines. Replacing a ruptured diaphragm valve eliminates whistling noises and prevents oil from fouling your intake system.
- Vacuum Leak Fix: Resolves "lean" fuel mixture codes and erratic idle speeds caused by failed membranes.
- Oil Management: Efficiently separates oil mist from crankcase gases to reduce carbon buildup on intake valves.
- Direct Fit: OE-calibrated spring tension and housing design for a perfect seal and factory-spec pressure regulation.
The 28CarParts Advantage
A faulty PCV valve can lead to blown engine seals due to over-pressurization. We stock specialized German brands like Vaico (Q+ Quality), Febi Bilstein, and Genuine VAG to ensure your engine breathes correctly and stays leak-free.
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