{"product_id":"pcv-check-valve-03c103175b-03c103175j-for-vw-lavida-polo-passat-skoda-octavia","title":"PCV Check Valve 03C103175B \/ 03C103175J for VW Lavida, Polo, Passat \u0026 Skoda Octavia","description":"\u003ch2\u003ePCV Check Valve — 03C103175B \/ 03C103175J\u003c\/h2\u003e\u003cp\u003eA small part that makes a big difference. This \u003cstrong\u003ePCV (Positive Crankcase Ventilation) check valve\u003c\/strong\u003e regulates crankcase pressure and prevents oil vapors from flowing back into the intake system. When this valve fails, you may notice rough idling, increased oil consumption, or even engine misfires. Replacing it with a quality part restores smooth, efficient engine operation.\u003c\/p\u003e\u003ch3\u003eCompatible Part Numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e03C103175B\u003c\/li\u003e\n\u003cli\u003e03C103175J\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolkswagen Lavida\u003c\/li\u003e\n\u003cli\u003eVolkswagen Polo\u003c\/li\u003e\n\u003cli\u003eVolkswagen Passat\u003c\/li\u003e\n\u003cli\u003eSkoda Octavia\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSymptoms of a Failing Check Valve\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRough or unstable idle\u003c\/li\u003e\n\u003cli\u003eIncreased oil consumption or oil leaks\u003c\/li\u003e\n\u003cli\u003eCheck engine light (P-codes related to crankcase ventilation)\u003c\/li\u003e\n\u003cli\u003eWhistling or hissing noise from the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ Direct OEM replacement — plug-and-play installation\u003c\/li\u003e\n\u003cli\u003e✅ Restores proper crankcase ventilation and engine pressure balance\u003c\/li\u003e\n\u003cli\u003e✅ Durable construction for long service life\u003c\/li\u003e\n\u003cli\u003e✅ Compatible with both 03C103175B and updated 03C103175J part numbers\u003c\/li\u003e\n\u003cli\u003e✅ Helps prevent oil leaks and protects engine internals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eRecommended as part of routine engine maintenance. Easy DIY installation — no special tools required.\u003c\/em\u003e\u003c\/p\u003e","brand":"vwpartly","offers":[{"title":"Default Title","offer_id":52129089814811,"sku":"03C103175B","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/5972\/9435\/files\/03C103175B_POLO_03C103175J.jpg?v=1777363662","url":"https:\/\/vwpartly.com\/products\/pcv-check-valve-03c103175b-03c103175j-for-vw-lavida-polo-passat-skoda-octavia","provider":"VW Partly Auto Parts","version":"1.0","type":"link"}