Description
It is typically found in vehicles such as the Audi A4, A5, A6, Q5, Q7, Q8, and VW Touareg/Amarok equipped with 3.0 TDI engines. Because it’s an OEM part manufactured to original specifications, it fits precisely and maintains proper coolant management to support optimal engine performance and prevent overheating or improper cabin heating.
Identity & Purpose
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Part Number: 059121737AR (OEM Audi/VW Group valve).
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Function: Coolant regulation/control valve — modulates coolant flow within the engine’s cooling/heating circuits to help maintain engine temperature and heating system effectiveness.













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