Quote:
Originally Posted by dc_wright
It's my understanding BMW wanted the top assembly to be a modular design so that they could test it independently from the car, then drop it place, bolt in in and connect the electricals. They achieved that by mounting the motor to the left side hydraulic cylinder, but putting it inside the drain funnel instead of outside was truly boneheaded.
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As a mechanical engineer, I can say that this was clearly done to simplify manufacturing and reduce its cost. But it failed to address the impact on long term viability of the pump. I suspect that some factory bean counter had a study done to determine that while a high failure rate was likely, most failures would occur outside the warranty period with the repair cost borne by the customer.