URO 8K0121405N Engine Coolant Reservoir

Brand URO 8K0121405N
Fits Audi · 37 vehicles

OE dimensions. Precision-molded for compatibility with original sensors and connections.

Heat-resistant materials. Built to handle engine heat and harsh cooling system conditions.

Factory pressure-tested. Verified for dependable cooling system performance.

Cross-references URO 8K0121405N, 8K0 121 405F and 8K0 121 405H for the same application. See all 7.

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Engine Coolant Reservoir for Audi Applications

This URO engine coolant reservoir is a direct-fit replacement for select Audi models with a heat shield. It is molded to OE dimensions for proper sensor and hose connection alignment, and it is factory pressure-tested for cooling system use.

  • Guaranteed fitment for listed Audi applications
  • Precision-molded to OE dimensions for sensor and connection compatibility
  • Built from materials that resist engine heat and cooling system exposure
  • Factory pressure-tested before release
  • 24 Month Unlimited Mileage Warranty

Fitment Details

  • Fits 2009-2016 Audi Q5, with Heat Shield
  • Fits 2010-2016 Audi S4, with Heat Shield
  • Fits 2010-2016 Audi S5, with Heat Shield
  • Fits 2014-2016 Audi SQ5, with Heat Shield
  • Fits 2012 Audi A4, with Heat Shield; Production Date Range: Thru 01/09/2012.
  • Fits 2012 Audi A4 Quattro, with Heat Shield; Production Date Range: Thru 01/09/2012.
  • Fits 2009-2011 Audi A4, with Heat Shield
  • Fits 2011 Audi A4 Quattro, with Heat Shield; Production Date Range: From 05/02/2011.
  • Fits 2009-2010 Audi A5 Quattro, with Heat Shield
  • Fits 2008 Audi A5 Quattro, with Heat Shield; Production Date Range: From 03/11/2008.

Common Replacement Reasons

  • Coolant leaks from a cracked or aged reservoir
  • Low coolant warnings caused by reservoir damage
  • Improper sensor fitment after reservoir failure
  • Heat-related plastic deterioration in the cooling system
  • Loss of pressure retention in the expansion tank

Installation Notes

Verify the vehicle uses the heat shield configuration before ordering. Confirm the part number and production date range on 2011-2012 Audi A4, A4 Quattro, and 2008 Audi A5 Quattro applications. Inspect hoses, caps, and sensor connections during replacement to ensure the cooling system seals correctly.

Quality Assurance

URO 8K0121405N is factory pressure-tested and backed by a 24 Month Unlimited Mileage Warranty. This part also cross-references URO-012896 for the same application.

This part fits 37 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2016AudiQ5Premium Plus3.0LV6N/Awith Heat Shield
2016AudiQ5PrestigeN/Awith Heat Shield
2016AudiS4N/Awith Heat Shield
2016AudiS5N/Awith Heat Shield
2016AudiSQ5N/Awith Heat Shield
2015AudiQ5Premium Plus3.0LV6N/Awith Heat Shield
2015AudiQ5PrestigeN/Awith Heat Shield
2015AudiS4N/Awith Heat Shield
2015AudiS5N/Awith Heat Shield
2015AudiSQ5N/Awith Heat Shield
2014AudiQ5Premium Plus3.0LV6N/Awith Heat Shield
2014AudiQ5PrestigeN/Awith Heat Shield
2014AudiS4N/Awith Heat Shield
2014AudiS5N/Awith Heat Shield
2014AudiSQ5N/Awith Heat Shield
2013AudiQ53.0LV6N/Awith Heat Shield
2013AudiS4N/Awith Heat Shield
2013AudiS5N/Awith Heat Shield
2012AudiA4N/Awith Heat Shield; Production Date Range: Thru 01/09/2012.
2012AudiA4 QuattroN/Awith Heat Shield; Production Date Range: Thru 01/09/2012.
2012AudiQ53.2LV6N/Awith Heat Shield
2012AudiS4N/Awith Heat Shield
2012AudiS53.0LV6N/Awith Heat Shield
2011AudiA4N/Awith Heat Shield
2011AudiA4 QuattroN/Awith Heat Shield; Production Date Range: From 05/02/2011.
2011AudiQ53.2LV6N/Awith Heat Shield
2011AudiS4N/Awith Heat Shield
2011AudiS53.0LV6N/Awith Heat Shield
2010AudiA4N/Awith Heat Shield
2010AudiA5 Quattro3.2LV6N/Awith Heat Shield
2010AudiQ5N/Awith Heat Shield
2010AudiS4N/Awith Heat Shield
2010AudiS53.0LV6N/Awith Heat Shield
2009AudiA4BaseN/Awith Heat Shield
2009AudiA5 QuattroN/Awith Heat Shield
2009AudiQ5N/Awith Heat Shield
2008AudiA5 QuattroN/Awith Heat Shield; Production Date Range: From 03/11/2008.
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
URO — 8K0121405N8K0 121 405F8K0 121 405H8K0 121 405N8K0 121 405Q8K0 121 405SURO-012896