Valve Cover Membrane With Rubber Diaphragm For Audi VW Passat Golf Polo

Replace deteriorating valve cover membrane units with this rubber diaphragm engineered specifically for VW Group TDI powerplants. When the original sealing element cracks or loses elasticity, crankcase ventilation pressure collapses, triggering oil seepage, dashboard warning lights, and sluggish turbo spool. This direct-swap pump restores stable vacuum balance within the engine ventilation circuit, halting external leaks and preserving consistent airflow through the intake manifold. Fabricated with a hermetically sealed rubber interface and a compact housing shape, it mounts securely to factory bracketry without modifications or auxiliary fittings. Designed to endure sustained thermal cycling and continuous oil saturation, this replacement maintains precise pressure regulation across 1.4, 1.9, and 2.0 TDI configurations.

Benefits & Practical Tips

• Crack Resistance: The specialized rubber blend bends reliably under vibration while resisting hardened brittleness common in older aftermarket substitutes.
• Bolt-On Fitment: Aligns with factory mounting points for straightforward removal and reinstallation using standard hand tools.
• System Maintenance: Inspect connected PCV hoses and check valves during replacement, as collapsed tubing frequently mimics membrane failure and accelerates wear on the new unit.

Technical Specifications

• Core Material: Automotive-grade rubber diaphragm
• Compatible Displacements: 1.4 TDI, 1.9 TDI, 2.0 TDI
• Platform Coverage: Audi A3 (8L1/8PA), A4 (B5/B6/B7), A6 (C5); Ford Galaxy I (WGR); Seat Alhambra, Cordoba, Toledo II, Ibiza; Skoda Fabia, Octavia (A4/A5), Roomster, Superb; Volkswagen Bora, Caddy III, Golf IV/V/Plus/Jetta, New Beetle, Passat (B5/B6), Polo, Sharan, Transporter T5, Touran
• Fits OEM References: 038103469AE, 038103469AD, 038103469AH, 038103469M, 038103469S, 038103469AJ, 038103469R, 038103469T, 045103469C, 045103469D, 045103469E, 045103469J, 045103469G, 045103475C
• Stock Status: Brand new replacement component

Package Includes:

• One (1) Valve Cover Membrane with Rubber Diaphragm pump assembly

Warnings & Reminders

• Pre-Purchase Verification: Compatibility ranges are supplied solely as reference guides. Always physically compare the stamped manufacturer code on your existing unit against the OEM references above before completing your order.
• Storage Precaution: Keep the diaphragm wrapped in its protective packaging until installation to shield the rubber surface from UV exposure and chemical contact.

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