If they repossessed the car or he chose not to buy the car after the lease was up they would have left the immobilizer in the car for the next person to lease i

If they repossessed the car or he chose not to buy the car after the lease was up they would have left the immobilizer in the car for the next person to lease it, or removed it and installed it in a different car. I bet if we had a copy of the contract he says he didn't really ask about there is a clause saying that the immobilizer was their property, and not included in the sale. The issue here is more about how the dealership attempted to recover their property and the fee that he claims wasn't mentioned in the contract, not whether or not they actually owned the immobilizer.