Auxiliary Water Pump

The Bosch 0392022010 is an engine auxiliary water pump, also known as the Bosch 010 pump, designed as an upgraded OE-quality replacement for a range of Mercedes-Benz AMG models. This pump is particularly noted as a common cause of power loss on supercharged Mercedes engines. It is manufactured in Germany and meets original equipment specifications. This auxiliary water pump is crucial for circulating coolant to the engine, heater core, and other systems that utilize coolant, such as turbochargers. Its function is especially vital in maintaining optimal operating temperatures during low-speed driving or idling conditions where additional coolant flow is necessary. Symptoms of a failing auxiliary water pump can include engine overheating, coolant leaks from damaged seals, and inconsistent cabin heating due to inadequate coolant circulation. This upgraded Bosch 010 pump is used on many contemporary AMG vehicles and is considered a superior alternative to stock pumps. While it is a direct replacement for many applications, some users have found it to be a larger and better-flowing version than the original equipment pump. It is designed for 12V systems and requires correct wiring to ensure proper flow; incorrect polarity can significantly reduce its output. The Bosch 0392022010 is compatible with a wide array of Mercedes-Benz vehicles, including but not limited to the C32 AMG (2002-2004), SLK32 AMG (2002-2004), CL55 AMG (2003-2006), E55 AMG (2003-2006), S55 AMG (2003-2006), CL600 (2003-2014), S600 (2003-2006), and others such as the CLS55 AMG, CLS63 AMG, and E320. It is essential to verify fitment for your specific vehicle model, year, and engine configuration.