In my e300d - the wires on both ends of the resistors had burnt to a crisp, I had to patch in about 8 inches of new wires to make it work again.

The fans did not work on either speed.

Best way to repair said wires is to remove the headlamp. If you have 8 or 9 inch fingers you would be able to do it without removing the lamp.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)