Vorsprung Crankcase Breather Hose | Audi 3.0T Replacement 06E103217AC
Crankcase breather hoses on the 3.0T V6 don't get any easier a life than the rest of the engine bay: constant heat, oil vapor, and years of cycling until the rubber gives up. When it does, you get exactly what you'd expect from a failed PCV hose, a vacuum leak that shows up as rough idle, erratic behavior, and a fault code that sends you hunting in the wrong direction.
The Vorsprung Autowerk Crankcase Breather Hose is a precision-manufactured replacement for the factory unit (cross-references to Audi part 06E103217AC), engineered for the 3.0T V6 platform. It restores the seal in your crankcase ventilation system, so boost, vacuum, and vapor all go exactly where they're supposed to instead of leaking past a hardened old hose.
Why This Hose Fails Right When You Least Expect It
Factory breather hoses are built to survive the warranty window, not a decade of engine bay heat cycling. Once the rubber hardens and cracks, unmetered air sneaks into the system, throwing off your idle and giving the ECU bad information to work with. It's a small part, but a failed one causes an outsized headache.
Key Features & Benefits
- ✅ Precision Fitment — Manufactured to factory dimensions for a proper seal at every connection point. 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 breather circuit properly, keeping unmetered air out of the intake and idle behavior where it should be.
- ✅ Cheap Insurance — A low-cost preventive swap that heads off a vacuum leak before it turns into a longer diagnostic chase.
Bottom line: it's an easy part to overlook until your idle starts telling you something's wrong. Replace it while it's still a simple fix.
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.
Vehicle Fitment
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Audi | A4 | B8/B8.5 | 3.0T Supercharged |
| Audi | A5 / S5 | B8/B8.5 | 3.0T Supercharged |
| Audi | SQ5 | 8R | 3.0T Supercharged |
| Audi | A6 Quattro | C7 | 3.0T Supercharged |
| Audi | A8 | D4 | 3.0T Supercharged |
| Audi | Q5 | 8R | 3.0T Supercharged |
| Audi | Q7 | 4L | 3.0T Supercharged |
| Volkswagen | Touareg | 7P | 3.0T Supercharged |
NOTE: Direct replacement for factory part 06E103217AC. Confirm your chassis code before ordering, and verify this is the crankcase breather hose you need rather than the secondary air injection pipe some suppliers list under the same part number.
Crankcase Breather Hose FAQ
How do I know if my breather hose has failed?
Rough idle, erratic idle behavior, and a vacuum-leak-related fault code are the usual symptoms. A hardened, cracked, or brittle hose is the visual giveaway.
Is this the same part as the secondary air injection pipe?
No — some suppliers list similar-looking parts under overlapping numbers. This listing is specifically the crankcase breather hose cross-referencing OE 06E103217AC; confirm your chassis code before ordering.
Does this fit the Volkswagen Touareg?
Yes, the 7P Touareg with the 3.0T supercharged engine uses the same factory hose.
Should I replace any other parts while I'm in there?
Inspect surrounding clamps and fittings at the same time — a hardened original hose is often a sign nearby components are due for a look too.
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Vorsprung Crankcase Breather Hose | Audi 3.0T Replacement 06E103217AC
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