Coolant Expansion Tank - NRF 454007

The NRF Coolant Expansion Tank (454007) is a high-quality replacement part designed to maintain th...

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Coolant Expansion Tank fits AUDI A6 Allroad C6 3.0D 06 to 11 NRF 4F0121403 New

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eBayCoolant Expansion Tank fits AUDI A6 Allroad C6 3.0D 06 to 11 NRF 4F0121403 New

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AutodocNRF Expansion Tank AUDI 454007 4F0121403,4F0121403B,4F0121403F Coolant Expansion Tank,Coolant Reservoir,Coolant Tank,Expansion Tank, coolant,4F0121403

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Product Information

Full details

The NRF Coolant Expansion Tank (454007) is an essential maintenance replacement for Audi, Seat, Skoda, and VW owners looking to restore their cooling system's integrity. Engineered to maintain precise system pressure, this unit includes an integrated sensor and top cap, ensuring a reliable fit for compatible vehicles. While it serves as a robust OEM-standard replacement, users should strictly verify their vehicle's specific compatibility—referenced by part numbers such as 4F0121403—before installation to ensure a perfect match for their engine bay.

All features

Model Part Number	454007
Brand	NRF

Extended Product Information

FAQs

Does this tank come with the sensor?

Yes, the NRF 454007 comes with an integrated sensor and the top cap included.

How do I know if this fits my car?

Compare your current expansion tank's OEM part number with the following: 4F0121403, 4F0121403B, 4F0121403F, 4F0121403M, or 4F0121403Q.

Can I reuse my old cap?

It is highly recommended to use the new cap provided with the NRF tank to ensure the pressure relief valve is functioning correctly.

What is the material of the tank?

The tank is made from automotive-grade heat-resistant plastic designed to withstand engine bay temperatures.

Is it difficult to install?

It is a standard mechanical repair, but it requires patience to bleed the air out of the cooling system properly after installation.

Troubleshooting

Coolant warning light remains on after installation

Ensure the sensor connector is fully seated and free of corrosion or debris.

Coolant level drops shortly after replacement

Check for air pockets in the cooling system; perform a proper coolant system bleed procedure.

Hose connections are leaking

Verify that hose clamps are positioned correctly and not damaged during removal.

Pros and Cons

Pros

Direct fit for multiple VAG group models (Audi, Seat, Skoda, VW)
Includes essential hardware like the cap and sensor
Maintains required system pressure for engine cooling efficiency
High-quality construction matching OEM standards

Cons

Compatibility requires strict verification against specific OEM part numbers
Requires proper cooling system bleeding after installation
Professional installation recommended to prevent air locks

Setup, Compatibility & Care

Before beginning installation, ensure the engine is completely cool to avoid injury from hot pressurized coolant. Drain the cooling system sufficiently before removing the old tank. When installing the NRF 454007, ensure all hose connections are seated securely and clamps are tightened to manufacturer torque specifications.

Compatibility

This tank is compatible with several OEM references including 4F0121403, 4F0121403B, 4F0121403F, 4F0121403M, and 4F0121403Q. Always verify your specific VIN or original part number before installation.

Care Instructions

Periodically inspect the tank for discoloration or brittleness.
Ensure the cap is screwed on completely to maintain system pressure.
Use only the coolant type recommended by your vehicle manufacturer.