Genuine BMW N57 Diesel Mechanical Coolant Pump | OEM Water Pump 11518516205 Fits F06 F10 F11 F12 F13 F25 F26 F30 F31 F32 F33 F34 F36 F01/F02 LCI F15 E70 LCI E71 F16 - 330d

Authentic BMW Factory-Spec Engine Cooling Pump - Part No. 11518516205

Protect your BMW diesel straight-six with the original factory cooling solution. This belt-driven coolant circulation pump is the exact OE-grade component specified for N57-powered models across multiple BMW platforms, delivering stable temperature control, quiet operation and long-term durability. Ideal as a like-for-like replacement for a noisy, leaking or worn pump on vehicles such as 330d, 430d, 435d xDrive, 530d, 535d, 640d, 730d, M50d and more.

We fit this unit on our own N57 builds and customer cars, and the feedback is consistently excellent. Fitment is spot on, performance is factory-correct and reliability is outstanding under daily use and spirited driving.

Why this OE-grade cooling pump is the right choice

• BMW factory part for precise fit and correct coolant flow
• Designed for the N57 diesel engine with exact tolerances and quality materials
• Direct swap for the original belt-driven pump with no modifications
• Helps prevent overheating, hot spots and unnecessary engine stress
• Perfect to install alongside auxiliary belt, tensioner and coolant refresh
• Proven reliability on our own projects and customer vehicles

Part number

BMW Part No: 11518516205

Vehicle applications

For BMW models equipped with the N57 diesel engine. xDrive indicates all-wheel drive variants.

3 Series

• F30 Saloon - 330d, 330d xDrive, 335d xDrive
• F31 Touring - 330d, 330d xDrive, 335d xDrive
• F34 Gran Turismo - 330d, 330d xDrive, 335d xDrive

4 Series

• F32 Coupe - 430d, 430d xDrive, 435d xDrive
• F33 Convertible - 430d, 435d xDrive
• F36 Gran Coupe - 430d, 430d xDrive, 435d xDrive

5 Series

• F07 Gran Turismo - 530d, 530d xDrive, 535d, 535d xDrive
• F10 Saloon - 530d, 530d xDrive, 535d, 535d xDrive, M550d xDrive
• F11 Touring - 530d, 530d xDrive, 535d, 535d xDrive, M550d xDrive

6 Series

• F06 Gran Coupe - 640d, 640d xDrive
• F12 Convertible - 640d, 640d xDrive
• F13 Coupe - 640d, 640d xDrive

7 Series

• F01 LCI - 730d, 730d xDrive, 740d, 740d xDrive, 750d xDrive
• F02 LCI - 730Ld, 740Ld xDrive, 750Ld xDrive

X Models

• X3 F25 - xDrive30d, xDrive35d
• X4 F26 - xDrive30d, xDrive35d
• X5 E70 LCI - M50d
• X5 F15 - xDrive30d, xDrive35d, xDrive40d, M50d
• X6 E71 - M50d
• X6 F16 - xDrive30d, xDrive40d, M50d

Fitment check

We will confirm compatibility before dispatch. Add your UK registration or the last 7 of your VIN at checkout so our team can verify this cooling pump suits your specific N57 vehicle.

Warranty

Two years manufacturer warranty for UK customers. One year manufacturer warranty for international customers when a valid VIN is supplied at checkout on compatible vehicles.

Professional fitting

Prefer a specialist to install it for you? Book expert fitting with MJ Modifications in Warwickshire. Request a quote via info@mjmodifications.co.uk.

Helpful symptoms and maintenance cues

• Coolant loss, pink or blue residue around the pump housing
• Whining or grinding from the front of the engine
• Temperature fluctuations or overheating under load
• Ideal time to replace when servicing the auxiliary drive belt and tensioner

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