BMW 428i xDrive oil pump failure led to engine destruction without warning on BMW 428i xDrive

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some BMW 428i xDrive owners report experiencing oil pump failures that can lead to catastrophic engine damage without warning. These failures often result in a sudden loss of oil pressure, which causes inadequate lubrication of engine components and severe damage. Symptoms of a failing oil pump reported by owners include decreased engine performance, sluggish acceleration, rough idling, and overall poor performance. Prompt checks of the oil pump are advised if any drop in power or unusual sensations while driving are noticed. Repair costs for oil pump failures can be substantial, and in some cases, replacing the entire engine may be more cost-effective than repairs. Regular oil changes, recommended every 10,000 miles by BMW, are crucial for maintaining engine health and preventing oil pump issues. This problem can affect various BMW models, including the 428i and 435i from 2014 to 2016, as well as the M4 from 2015 to 2020, depending on the engine type. Addressing oil pump issues through vigilant maintenance can help prevent serious engine damage in BMW 428i xDrive vehicles.

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