This is a problem with the charcoal canister getting flooded with liquid fuel or the vent valve in the system siezing.

The entire unit is in the right rear wheel well on the aft side.

Does your car flash the low reserve fuel 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)