- Sep 09, 2026BMW F15 X5 40e coolant loss: the weep that looks like a top-upCoolant disappears gradually on the F15 X5 40e because the pump and thermostat housing seals weep rather than leak. How to tell drift from a fault, and the two-minute check that catches it.
- Sep 09, 2026BMW G30 530e rear brake discs: why they corrode, and the one habit that stops itRear discs corrode on the G30 530e because regenerative braking does most of the stopping. Why it happens, how it shows up at MOT, and the weekly habit that prevents it.
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