Audi A8/S8 Coolant / Heater Control Valve Unit 4E0959617C

OEM Part #: 4E0-959-617-C (4E0959617C)

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COOLANT / HEATER CONTROL VALVE UNIT This HVAC heater control valve (OEM Part Number: 4E0959617C) is designed for precise temperature regulation within your Audi A8 Quattro and S8 models. Located in the engine compartment, this unit controls the flow of coolant to the heating system, ensuring optimal cabin temperature. Common issues such as inconsistent heating or coolant leaks may arise when the valve fails. Compatibility includes 2004-2010 Audi A8 Quattro (4.2L V8, 6.0L W12) and 2007-2010 Audi S8. Other part numbers include 4E0959617A, and it is typically associated with heater bypass valve or water pump applications. Invest in reliable climate control with this essential component.

Specifications

Specifications for Coolant / Heater Control Valve Unit 4E0959617C
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4E0-959-617-C (4E0959617C)
Compatible OEM Part No 4E0-959-617-A
CategoryRadiator / Coolant

Compatible Vehicles

Fits 21 vehicle configurations across 1 make, 2004-2010.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A8 2004-2010 · 18 variants
  • S8 2007-2009 · 3 variants
View all 21 vehicle configurations
Full vehicle fitment list for Coolant / Heater Control Valve Unit 4E0959617C
Year Make Model Trim Engine Note
2004 Audi A8 Quattro L Sedan 4.2L V8
2005 Audi A8 Quattro Sedan 4.2L V8
2005 Audi A8 Quattro L Sedan 4.2L V8
2005 Audi A8 Quattro L Sedan 6.0L W12
2006 Audi A8 Quattro Sedan 4.2L V8
2006 Audi A8 Quattro L Sedan 4.2L V8
2006 Audi A8 Quattro L Sedan 6.0L W12
2007 Audi A8 Quattro Sedan 4.2L V8
2007 Audi A8 Quattro L Sedan 4.2L V8
2007 Audi A8 Quattro L Sedan 6.0L W12
2007 Audi S8 Sedan 5.2L V10
2008 Audi A8 Quattro Sedan 4.2L V8
2008 Audi A8 Quattro L Sedan 4.2L V8
2008 Audi A8 Quattro L Sedan 6.0L W12
2008 Audi S8 Sedan 5.2L V10
2009 Audi A8 Quattro Sedan 4.2L V8
2009 Audi A8 Quattro L Sedan 4.2L V8
2009 Audi A8 Quattro L Sedan 6.0L W12
2009 Audi S8 Sedan 5.2L V10
2010 Audi A8 Quattro Sedan 4.2L V8
2010 Audi A8 Quattro L Sedan 4.2L V8

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