Mängel

Mängel is a German term that translates to defects, deficiencies, or shortcomings. In everyday language and professional contexts, it denotes deviations from expected standards, performance, or quality. The term is widely used in legal, construction, procurement, and consumer-protection settings to describe problems that undermine usefulness or value.

In contract and sales law, a defect (Sachmangel) is a fault that prevents a product from conforming to the contract or from being fit for its intended purpose. The seller may be obliged to remedy defects through repair or replacement (Nacherfüllung). If fulfillment is impossible or unjustified, the buyer may seek price reduction or rescission, and potentially damages. A timely Mängelrüge—the notification of defects—often governs the preservation of warranty rights.

In construction and project management, Mängel are identified during inspections and commissioning. A defect list (Mängelverzeichnis) records deficiencies and governs corrections, payment adjustments, and acceptance procedures. Effective defect management helps ensure compliance with specifications and reduces dispute risk.

In consumer protection and product liability, Mängel can trigger statutory Gewährleistung or warranty rights, with varying durations depending on jurisdiction and product type. The term also encompasses broader quality problems in services or performance.

Originating from the German noun Mangel, its plural Mängel is used primarily in German-speaking contexts, while similar terms exist in other languages to describe defects and deficiencies.

See also: Gewährleistung, Sachmangel, Mängelrüge, Nacherfüllung, Rücktritt, Minderung, Schadensersatz, Mängelverzeichnis