Vauxhall Astra H MK5 2004-2014 Radiator Coolant Expansion Header Tank & Cap Vehicle Model_Lodgy E Number (171 323 0017)

E Number (171 323 0017) in the product specification to help ensure correct compatibility before ordering

One of the lesser-known parts on your Vauxhall Insignia is the coolant expansion tank

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Vauxhall Astra H MK5 2004-2014 Radiator Coolant Expansion Header Tank & Cap Vehicle Model_Lodgy E Number (171 323 0017)One of the lesser known parts on your Vauxhall Astra is the coolant expansion tank. This component is responsible for catching and storing coolant overspill from the vehicle's radiator. The coolant in your vehicle is designed to prevent the engine from overheating. As it reaches its optimal operating temperature, it expands and can overflow. The expansion reservoir collects this excess fluid and stores it safely instead of letting it spill onto the