Product Quality Disputes: The Contractual Basis of Claims
When a purchased product fails to meet reasonable quality expectations, the buyer's claims are built on the rules of sale in the Civil Code. Unlike a tort suit against the manufacturer, the dispute is with the seller, and the basis of the claim is the seller's contractual obligations. Article 487 of the Civil Code establishes the general requirement: the seller must deliver to the buyer a thing free of material and legal defects. Every quality problem is thus first assessed in the contractual context, and only afterwards is the remedy chosen.
When a Thing Is Free of Material Defects
The criterion for assessing quality is defined precisely in the law. Under the first part of Article 488 of the Civil Code, a thing is free of material defects if it is of the agreed quality. Where the quality has not been agreed in advance, the thing is deemed defect-free if it is fit for the use envisaged by the contract or for customary use. A detailed description of quality in the agreement thus strengthens the buyer's position: a deviation from the agreed quality is easily established. Where quality is undefined, the court confines itself to the customary-use standard.
The law also defines the notion of a defect broadly: it is equated with a defect if the seller delivers only a part of the thing, a completely different thing, a lesser quantity, or where one part of the thing is defective, except where the defect cannot materially influence performance. This means that an incomplete set, a wrong model or even a partial delivery may be treated as a defect where it materially influences performance.
Cure, Replacement and Reimbursement of Expenses
On discovering a defect, the buyer's initial claims against the seller are defined by Article 490 of the Civil Code: where the sold thing has a defect, the seller must either cure the defect or, where the thing is a generic thing, replace it within a period necessary for the purpose. The question of expenses is also resolved: the seller bears the reimbursement of the expenses necessary for curing the defect, including the costs of transport, road, work performance and materials. Transporting the defective item, repair work and materials must therefore go at the seller's expense.
Two additional rules complete this picture. First, the seller may refuse both to cure the defect and to replace the thing where this requires disproportionately large expenses. Second, where the seller transfers to the buyer a defect-free thing in order to cure the defect, the seller may demand from the buyer the return of the defective thing. This last rule balances the economics of replacement: the new thing is received, and the defective one goes back to the seller.