Bosch 0392022010 Engine Auxiliary Water Pump

Bosch Engine Auxiliary Water Pump for Mercedes-Benz

Bosch part number 0392022010 is an engine auxiliary water pump built to original equipment specifications for Mercedes-Benz and Maybach applications. It is 100% new, torque tested for impeller-to-shaft integrity, and vacuum leak tested to verify sealing performance.

This Bosch Engine Auxiliary Water Pump line is focused on OE-style fitment and validation. Where the isolator grommet and bracket can be reused, Bosch uses OE mating parts and accessories to confirm proper fitment during replacement.

Key Features

• 100% new auxiliary water pump
• Designed to meet exact original equipment specifications
• Torque tested to verify proper impeller-shaft mating
• Vacuum leak tested for housing, seal, tube binding, and plug leakage
• Clockwise rotation
• 1 inlet port and 1 outlet port
• 58 W water pump design
• Mixed-material construction
• Bosch part number 0392022010

Detailed Description

Use Bosch 0392022010 when replacing an engine auxiliary water pump on Mercedes-Benz SL550, E550, CLS550, GL550, S600, and related applications. This pump is engineered for OE-level fitment and function, with testing procedures that check both mechanical integrity and sealing performance before it leaves the factory. It is a direct replacement choice for vehicles that require a clockwise-rotation auxiliary pump with one inlet and one outlet port.

This part cross-references 0005000386 and 000500038680 for the same application.

What It Helps Address

• Auxiliary coolant circulation concerns
• Leakage at the pump housing or seals
• Noise or performance issues from loose impeller-shaft fitment
• Cooling system flow problems on turbocharged or high-output Mercedes-Benz engines
• Replacement needs on aging Bosch auxiliary pump assemblies

Installation Notes and Tips

• Confirm the vehicle uses a clockwise-rotation auxiliary pump before installation.
• Inspect the isolator grommet and bracket; Bosch notes these may be reused when applicable.
• Because mounting hardware, gasket, seal, and bracket are not included, transfer or source the required related components separately as needed.
• Verify port orientation and OE connector/line routing against the removed unit before final assembly.

Quality Assurance

Bosch validates this auxiliary water pump with torque testing and vacuum leak testing to confirm proper operation and sealing. The result is a replacement part built around OE specifications for Mercedes-Benz and Maybach cooling-system service.

Compatible with select Mercedes-Benz SL450, SL550, GLE400, GLS450, E400, E550, CLS550, S600, and Maybach 57/62 applications, depending on model year and engine configuration. Bosch 0392022010 is also listed for additional Mercedes-Benz fitments including E63 AMG, GL63 AMG, and SL65 AMG.