I have an 09 135i that just hit 50k miles and I'm still on the original pump. But, about 1.5k miles ago the coolant light came on and that got me worried. I filled it back up that same day and the level is still good to date, but I'm wondering if that was a sign of issues to come, or if it was just low for some reason. I assume a dealership won't replace it just because it 'might' fail, before my warranty runs out, huh?
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