Vorsprung Cylinder Head Vent Hose | Audi 3.2L V6 Replacement 06E103217AA

Every 3.2L V6 Audi has a rubber hose connecting the valve covers to the PCV system, quietly routing crankcase vapor where it needs to go. It's not glamorous, but when it fails, you'll know. Cracked cylinder head ventilation hoses are a classic culprit behind vacuum leaks, rough idle, and oil vapor smell that seems to come from nowhere.

The Vorsprung Autowerk Cylinder Head Ventilation Hose is a precision-manufactured replacement for the factory unit (cross-references to Audi part 06E103217AA), engineered for the 3.2L V6 platform. It restores the seal between the valve covers and PCV system, closing off the vacuum leak your old hose has probably already started to develop.

Why This Hose Doesn't Age Gracefully

Sitting right on top of the engine, this hose spends its whole life absorbing heat and oil vapor. Over years of cycling, the rubber hardens and cracks at the fittings, letting unmetered air into the system. The result is exactly what you'd expect: rough or inconsistent idle, a lean condition the ECU doesn't appreciate, and a PCV-related fault code that's easy to misdiagnose as something else.

Key Features & Benefits

• ✅ Precision Fitment — Manufactured to factory dimensions for a proper seal at the valve covers and PCV connection points. Drops in where the original hose lived.
• ✅ Built to Take the Heat — Heat and oil-resistant rubber compound designed to outlast the factory hose's tendency to harden and crack.
• ✅ Restores Correct Crankcase Ventilation — Seals the valve cover-to-PCV connection properly, keeping unmetered air out of the intake and idle behavior back to normal.
• ✅ Cheap Preventive Fix — A low-cost swap that heads off a vacuum leak before it turns into a longer diagnostic chase.

Bottom line: if your 3.2L is idling rough and you've already checked the easy stuff, this is exactly the kind of hidden vacuum leak worth ruling out.

Note: Inspect surrounding clamps and fittings at the time of replacement, since a hardened hose is often a sign nearby components are due for a look too.

Cylinder Head Vent Hose FAQ

How do I know if this hose is causing my rough idle?
A cracked or hardened cylinder head ventilation hose creates a vacuum leak that shows up as rough or inconsistent idle, a lean condition, and a PCV-related fault code. If you've ruled out other common causes, this hose is worth checking.

Is this a direct bolt-on replacement?
Yes. It's manufactured to factory dimensions and drops in where the original hose lived, cross-referencing Audi part 06E103217AA.

What should I inspect while replacing this hose?
Check the surrounding clamps and fittings at the same time, since a hardened hose is often a sign nearby components are due for a look too.

Why does the factory hose fail?
It sits on top of the engine absorbing heat and oil vapor constantly, which causes the rubber to harden and crack at the fittings over time.

Is this an expensive fix?
No. It's a low-cost preventive swap that heads off a vacuum leak before it turns into a longer diagnostic chase.

Drive the difference. Drive Vorsprung.