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<h2> <strong>Genuine BMW Electric Auxiliary Water Pump (Charge Air Cooler / Battery Cooling)</strong> — OEM part number <strong>11518600442</strong>.</h2> <ul> <li> <strong>Function:</strong> Electric coolant pump for the charge air cooling circuit; also used for battery cooling on hybrid applications.</li> <li> <strong>Fitment (verified):</strong> <ul> <li>BMW F22 / F23 2 Series (B58 3.0L) — incl. M2 Competition</li> <li>BMW F30 / F34 3 Series (B58 3.0L) — 340i, 340i xDrive (2016-2018)</li> <li>BMW F32 / F33 / F36 4 Series (B58 3.0L) — 440i, 440i xDrive</li> <li>BMW F80 M3 / F82 M4 / F83 M4 (S55 3.0L), 2015-2018</li> <li>BMW G30 5 Series (B58 3.0L) — 540i (2017-2019)</li> <li>BMW G32 6 Series GT — 640i xDrive</li> <li>BMW I12 / I15 i8 (B38), 2014-2020 — battery cooling application</li> </ul> </li> <li> <strong>Symptoms of failure:</strong> Overheating, coolant leaks, unusual noise from the pump area, or temperature-related warning lights.</li> <li> <strong>Note:</strong> Mounting hardware (M8x35 and M6x30 hex bolts, Torx bolt) and the pump holder 17117850616 are separate items.</li> <li>Genuine OEM part — confirm fitment with your VIN before ordering.</li> </ul>
The catalog often lists the same model at several merchants — worth a price check before you buy.