Mercedes-Benz Auxiliary Water Pump - Bosch 4478350164

Product Information

An engine auxiliary water pump is a component in a vehicle's cooling system that helps circulate coolant to the engine, heater core, and supporting systems leveraging coolant like the turbocharger. It is particularly useful in systems where additional coolant flow is needed to maintain optimal operating temperatures, especially during low-speed driving or when the engine is idling.

• Overheating Engine: If the auxiliary water pump fails, it can lead to inadequate coolant circulation, causing the engine to overheat, especially in stop-and-go traffic or under heavy loads
• Coolant Leaks: A malfunctioning pump may develop leaks due to damaged seals or housing, resulting in visible coolant pooling under the vehicle
• Inconsistent Cabin Heating: If the pump is not circulating coolant properly, the heater may produce inconsistent or insufficient heat, leading to cold air blowing from the vents

About Bosch

Bosch is one of the worlds leading suppliers of engine electronics and sensors. Their sensors and modules can be found in almost every modern car on the planet. Bosch Automotive offers a comprehensive portfolio of unmatched solutions for every job. From diverse diagnostic solutions and OE-quality auto parts, to industry-leading software and unmatched vehicle coverage, to innovative charging, repair and maintenance tools. Making repair and maintenance more effective, efficient, and sustainable for the vehicles of yesterday, today and tomorrow. With over 130 years of experience in the automotive industry, Bosch continues to lead the way in automotive innovation by inventing and developing quality products and solutions that focus on customer needs, shaping the future, and the continued pursuit of excellence.

Robert Bosch founded the “Workshop for Precision Mechanics and Electrical Engineering” in Stuttgart, Germany in 1886. Since the beginning Bosch has been a leader in innovation and development. They introduced fuel injection into mass production in 1967 laying the foundation for modern ignition electronics. Bosch brought lambda sensors to market in 1976, paving the way for cleaner exhaust gases and better fuel economy.

With millions of parts and products in their product line, Bosch offers everything from brake pads to household tools and medical supplies. FCP Euro has partnered with Bosch for the 2019 TC America Championship. They are a sponsor on our 2018 Volkswagen GTI TCR race cars. We offer Bosch's full line of OE and OEM components for your European vehicle.