Water Pump, BMW - F22 228i, F3X 328i/428i, F10 528i, X3/X4, Z4 28i (N20/N26)

Genuine electric water pump replaces BMW part #11518635089.

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Price:
$409.99

This is the OEM electric water pump used on the F22 228i, F30 328i, F32 428i, F10 528i, X3/X4 28i, and Z4 28i, including xDrive models.

The water pump is an electrical component now and is controlled by the engine computer. It only works when it has to, including even when the engine is shut off. This reduces fuel consumption and has less parasitic drag on the engine. Failures are usually caused by the electronics inside the pump so there is almost no warning of an impending failure or early signs of overheating. One of the only warning signs of electric water pump failure is if the electric fan suddenly starts working all of the time at its highest speed. This is because the pump has stopped, or not responding, and the fans are kicking in to take up the slack. Depending on operating conditions you may only have minutes before the engine shuts off to prevent serious overheating.

The N20 water pump does not seem to have the high failures of the N54 and N55 engines. But given the sudden and unpredictable failure we suggest a preventative replacement before 100,000 miles.

This is a Genuine BMW N20 water pump with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

BMW Fitments:
2 Series
F22 / F23 (2014-2021) > 228i
F22 / F23 (2014-2021) > 228i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 328i
F30 / F31 / F34 (2012-2019) > 328i xDrive
4 Series
F32 / F33 / F36 (14-20) > 428i
F32 / F33 / F36 (14-20) > 428i xDrive
5 Series
F10 / F11 (11-16) > 528i N20 (2012-2016)
F10 / F11 (11-16) > 528i xDrive N20 (2012-2016)
X3 Series
F25 X3 (2011-2017) > X3 sDrive28i
F25 X3 (2011-2017) > X3 xDrive28i
X4 Series
F26 X4 (2015-2018) > X4 28i xDrive
Z Series
E89 Z4 (2009-2016) > Z4 sDrive28i
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