Is it permissible to take a sum of money for a missing part from a rented car, knowing that its price in the used market is forty dinars?

The permissibility of taking the value of a part differs depending on the reason for its damage or loss. If the company renting the car was negligent or exceeded its bounds, it is obligated to pay the value of what it damaged. The value of the part is estimated based on its current condition. If the value of a used part is less than the estimated value, the company pays the difference. If it is more, the car owner returns the excess.