Auxiliary Coolant Pump | Audi A8 2005-2009, Allroad 2004-2005 | Replaces: 078121601A - Motiv8

Electric auxiliary coolant pumps for Audi A8 & Allroad 078121601A Auxiliary pumps have a life of their own; replacing them in a timely manner will extend the overall life of the engine. Electric Auxiliary Coolant Pumps circulate coolant through the cooling system to provide cooling of not only the engine but also inverters, batteries, turbochargers, HVAC systems, and assists start-stop vehicles in engine-off conditions. If the engine temperature light is illuminated or the pump makes high pitch screeching noises than it's most likely time for a new coolant pump. Contaminated coolant, corrosion, or particles in the coolant can cause seals and internal pump parts to fail. Thus, before replacing your electric auxiliary coolant pump, ensure to flush the coolant system and use only the correct engine coolant as specified in the owner's manual. If the coolant system is not flushed, there is a chance the failure can return due to particles in the coolant damaging the pump impeller. Se