(1) Where a newly manufactured thing is sold, the seller may demand that the seller who sold the thing to them (supplier) reimburse them for the expenses they had to bear in relation to the buyer under section 439 (2), (3) and (6) sentence 2 as well as under section 475 (4) if the defect asserted by the buyer already existed upon the devolution of the risk to the seller or if the defect is based on a violation of the obligation to provide updates in accordance with section 475b (4).
(2) Where the rights designated in section 437 that the seller enjoys vis-à-vis their supplier are concerned, it is not necessary to fix the period of time regarding the defect asserted by the buyer, which would otherwise be necessary, if the seller was obliged to take back the newly manufactured thing sold by them because it is defective, or if the buyer has abated the purchase price.
(3) Subsections (1) and (2) apply accordingly to the claims of the supplier and of the other buyers in the supply chain vis-à-vis their respective sellers if the obligors are traders.
(4) Section 377 of the Commercial Code (Handelsgesetzbuch) remains unaffected.