Product Description
Core Product Description
The 11518635090 BMW Electric Water Pump is an essential component of the engine cooling system for BMW vehicles equipped with the N55 3.0L turbocharged inline-6 engine. This electric water pump is responsible for circulating coolant through the engine block, cylinder head, and radiator to maintain optimal operating temperatures.
Unlike traditional belt-driven pumps, this electric water pump is controlled by the engine management system and operates only when needed, including after the engine has been turned off to manage residual heat. This design improves efficiency and reduces parasitic drag on the engine, contributing to better fuel economy and lower emissions.
This component is manufactured to high-quality standards and serves as a direct replacement for the original cooling system component. The pump features a 12-volt electric motor and is designed for the specific cooling requirements of the N55 engine platform.
The electric water pump is a known wear item on BMW N55 engines. Due to the electronic control unit integrated into the pump, failure can occur without significant prior warning. Regular inspection and proactive replacement are recommended to avoid unexpected overheating and potential engine damage.
Complete List of BMW N55 3.0L L6 Turbo Engine Applications
| Year |
Model |
| 2019 |
640i Gran Coupe, 640i xDrive Gran Coupe, X6 sDrive35i / xDrive35i |
| 2018 |
640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe, M2, X5 sDrive35i / xDrive35i, X6 sDrive35i / xDrive35i |
| 2017 |
M2, X5 sDrive35i / xDrive35i, X6 sDrive35i / xDrive35i |
| 2016 |
335i GT xDrive, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, M2, M235i, M235i xDrive, X5 sDrive35i / xDrive35i, X6 sDrive35i / xDrive35i |
| 2015 |
335i, 335i GT xDrive, 335i xDrive, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, M235i, M235i xDrive, X5 sDrive35i / xDrive35i, X6 sDrive35i / xDrive35i, ActiveHybrid 3 |
| 2014 |
335i, 335i GT xDrive, 335i xDrive, 435i, 435i xDrive, M235i, X5 sDrive35i / xDrive35i, ActiveHybrid 3 |
| 2013 |
335i, 335i xDrive, ActiveHybrid 3 |
| 2012 |
335i, 335i xDrive |
Features & Functional Notes
Performance Notes:
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The water pump is critical for maintaining proper engine operating temperature and preventing overheating.
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Due to the electronic components integrated into the pump, failure may occur without mechanical warning signs such as noise or leaks.
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Regular maintenance and proactive replacement are recommended to ensure cooling system reliability.
Inspection & Maintenance Recommendations
English:
The electric water pump on N55 engines is a known wear item. Due to the integrated electronic control unit, failure can occur without clear mechanical warnings. Proactive replacement is recommended to prevent unexpected overheating and engine damage.
Common indicators that the water pump may need replacement:
Recommended Service Interval:
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Many specialists recommend replacing the electric water pump at 60,000 to 80,000 miles as a preventive measure.
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This is considered a proactive maintenance item to avoid roadside breakdowns.
Maintenance Tips:
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Use only BMW-approved coolant at the correct mixture ratio.
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Inspect the cooling system hoses and connections for leaks or wear during water pump replacement.
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Always replace the 3 mounting bolts with new ones, as they are designed for single use.
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Perform a proper cooling system bleed after any repair involving coolant drainage to prevent air pockets.
FAQ
Q1: When should I replace the water pump?
A4: Many specialists recommend replacement at 60,000 to 80,000 miles as a preventive measure. The electric water pump is a known wear item on N55 engines and can fail without significant prior warning.
Q2: What are the signs of a failing water pump?
A6: Common signs include engine overheating, coolant leaks near the pump area, a whining noise from the front of the engine, or a low coolant warning light.
Q3: How do I bleed the cooling system after installation?
A7: BMW cooling systems require a specific bleeding procedure that uses the electric water pump itself. Consult the vehicle service manual for the correct process. Failure to properly bleed the system can result in air pockets and overheating.
Service Commitment:
Related Product Recommendations
Coolant Temperature Sensor/ Thermostat/ Coolant Expansion Tank
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