(1) If the possessor has combined with the thing another thing as an essential part, the possessor may separate the thing and take possession of it. The provision of section 258 applies.
(2) The right to separate is excluded if the possessor may not require reimbursement of the outlay under section 994 (1) sentence 2 or the separation is not of benefit for the possessor or the possessor is reimbursed at least the value that the component would have for them after separation.