Under Supercharger Kit (Audi 3.0T Gen 2 CREC)
Under Supercharger Kit (Audi 3.0T Gen 2 CREC)
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Overview
A complete Under Supercharger Service Kit engineered specifically for the Audi 3.0T Gen 2 CREC engine — covering 2015–2018 C7 A6, A7, A8, and Q7 platforms. This kit bundles every critical gasket, seal, and component that should be renewed any time the supercharger is pulled, including a GPS Gen 2 thermostat assembly, upgraded Graf metal water pump, OEM Hengst PCV valve, Elring intake manifold gaskets, fuel injector seal kit, and genuine VW/Audi PCV-to-supercharger adapter pipe.
The Gen 2 CREC engine commonly develops coolant leaks at the thermostat housing, PCV system failures leading to oil consumption, and rough idle from deteriorated intake manifold gaskets — all of which are only accessible with the supercharger removed. This kit eliminates the risk of a costly second teardown by supplying every serviceable part in one package, whether you are performing carbon cleaning, addressing a coolant leak, or executing a ported blower or pulley upgrade. An optional OEM Audi upper and lower coolant crossover pipe set is available to complete a full cooling system refresh at the same time.
Specifications
| Compatible Engine Code | CREC |
| Compatible Vehicles | 2015–2018 Audi C7 A6, A7, A8, Q7 (3.0T Gen 2 Supercharged TFSI) |
| Thermostat Assembly | GPS Gen 2 — CREC-specific |
| Water Pump | Graf Metal Impeller — OEM Upgraded (PA1228) |
| PCV Valve | OEM Hengst (06E103547AF) |
| Upper Intake Manifold Gaskets | Elring ×6 (079129717D) |
| Lower Intake Manifold Gaskets | Elring ×6 (06E129717F) |
| PCV to Supercharger Adapter Pipe | Genuine VW/Audi (06E103213) |
| Fuel Injector Seal Kit | Elring Klinger ×6 (06E998907F) |
| Optional Add-On | OEM Audi Upper & Lower Crossover Pipes with Coupler and Gaskets (06E121045BE, 06E121045AN, 06E121030K) |
| Gen Compatibility | Gen 2 CREC only — not compatible with Gen 1 |
| Part Quality | OEM and OEM-equivalent components only |
Features & Benefits
✓
CREC-Specific Component SelectionEvery part in this kit is selected for the Gen 2 CREC engine architecture and is not interchangeable with Gen 1 applications — ensuring correct fitment first time.
✓
Eliminates the Second TeardownBundling every serviceable valley component into one kit means nothing gets left behind — avoiding the labour cost and downtime of pulling the supercharger a second time for a missed part.
✓
Upgraded Graf Metal Water PumpThe Graf PA1228 metal impeller pump replaces the OEM plastic-impeller unit, delivering improved durability and long-term cooling reliability on the CREC platform.
✓
OEM and OEM-Equivalent Parts OnlySourced from Elring, Elring Klinger, Hengst, GPS, Graf, and Genuine VW/Audi — no aftermarket substitutes, no compromises on sealing integrity or longevity.
✓
Covers Every Common CREC Valley Failure PointAddresses the thermostat housing coolant leak, PCV system oil consumption, intake manifold gasket deterioration, and fuel injector seals — all in a single service event.
✓
Ideal for Carbon Cleaning, Blower Swaps & Preventive MaintenanceWhether the supercharger is coming off for intake valve carbon cleaning, a ported blower installation, pulley upgrade, or scheduled preventive service, this kit has every part required for a complete refresh.
Frequently Asked Questions
Is this kit compatible with Gen 1 Audi 3.0T engines?
No. This kit is engineered specifically for the Gen 2 CREC engine code found in 2015–2018 C7 A6, A7, A8, and Q7 models. The component specifications differ between generations and Gen 1 fitment is not supported.
Why should I replace all of these parts when the supercharger is already off?
The components in this kit — thermostat housing, PCV valve, intake manifold gaskets, and fuel injector seals — are only accessible once the supercharger is removed. Replacing them proactively during the same service event avoids a second full teardown if any of these items fail shortly after, saving significant labour time and cost.
What is the optional crossover pipe add-on and do I need it?
The optional OEM Audi upper and lower coolant crossover pipes (06E121045BE, 06E121045AN, 06E121030K) allow you to perform a complete cooling system refresh while the supercharger is off. They are recommended if your crossover pipes show cracking, swelling, or if you are addressing a coolant leak and want a comprehensive repair.
Why does the Gen 2 CREC engine commonly develop coolant leaks in the valley?
The thermostat housing on the CREC engine sits deep in the engine valley beneath the supercharger and is subject to significant thermal cycling. Over time the housing and associated seals degrade, allowing coolant to pool in the valley — a known failure point on this platform that the GPS Gen 2 thermostat assembly in this kit addresses.
Is this kit suitable for a DIY service or does it require a professional installer?
This kit is suitable for experienced DIYers with the appropriate tools and familiarity with supercharger removal on the CREC platform. It includes all the gaskets, seals, and components needed for one complete service. Those without prior experience removing the 3.0T supercharger should consult a qualified specialist.
