2005-2011 Audi A6 Coolant Reservoir / Tank / Bottle 4F0121403C
OEM Part #: 4F0-121-403-C (4F0121403C)
This page covers one exact OEM part number. Every unit we stocked has sold.
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Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
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This OEM coolant reservoir (part number 4F0121403C) serves as a vital component in maintaining the efficient cooling system of your Audi A6 or A6 Quattro. Positioned strategically within the engine bay, this expansion tank is designed to store excess coolant and facilitate pressure regulation, ensuring optimal engine performance. Common issues such as leaks or cracks in the reservoir can lead to overheating and engine damage. This genuine replacement part is compatible with the 2005-2011 Audi A6 and A6 Quattro, featuring 3.0L and 3.2L V6 engines. Additional compatible part numbers include 4F0121403N and 4F0121403R. Trust in factory-original quality for reliable performance.
Specifications
| Fits Vehicle Model | A6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4F0-121-403-C (4F0121403C) |
| Compatible OEM Part No | 4F0-121-403-N, 4F0-121-403-G, 4F0-121-403-R |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 13 vehicle configurations across 1 make, 2005-2011.
View all 13 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Sedan | 3.2L V6 | |
| 2006 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2006 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Sedan | 3.2L V6 | |
| 2007 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2007 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Sedan | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Wagon | 3.2L V6 | |
| 2008 | Audi | A6 | Quattro Sedan | 3.2L V6 | |
| 2009 | Audi | A6 | Sedan | 3.2L V6 | |
| 2010 | Audi | A6 | Sedan | 3.2L V6 | |
| 2011 | Audi | A6 | Sedan | 3.2L V6 |