BuMotar's take

“This is a used front differential, not a complete car, so you're buying a single component for repair or rebuild. Without the model year, mileage, or price, you cannot compare this against other differentials or judge whether you're paying fair money. Ask the seller for the exact BMW model and year it came from, the current mileage on that vehicle, and whether this unit has been tested or rebuilt.”

An opinion based on the listing's photos and how its price compares with similar cars. It is not an inspection and is no substitute for one.