TS 12373

TS 12373 is a vocational standard for the repairman working on gasoline engines. It defines the occupation, explains how it is classified, and sets out the knowledge and skills expected of practitioners together with the tools, equipment, and materials used in the work. In practical terms, it sits at the intersection of automotive maintenance, fault diagnosis, and mechanical repair for spark-ignition engines.

How the occupation is framed technically

The standard does more than name a job title: it organises the work of gasoline engine repair into a recognisable professional structure. In general technical terms, gasoline engines depend on coordinated fuel delivery, air intake, ignition, compression, and exhaust functions. A repairman therefore needs a working understanding of the engine as a system, not only of individual parts. That distinction matters because many drivability problems arise from interactions between mechanical, fuel, and ignition components rather than from a single part alone.

Knowledge, skills, and workshop equipment

The scope links occupational knowledge and skill requirements with the equipment expected in the trade. This is important in workshop practice, where correct diagnosis and repair depend on appropriate hand tools, measuring instruments, and testing or servicing equipment. For gasoline engines, even small deviations in adjustment can affect starting behaviour, smooth running, power delivery, and overall operating quality, so the occupation requires both careful workmanship and a disciplined technical approach.

• Provides a technical framework for describing and classifying the occupation.
• Connects gasoline-engine repair tasks with the knowledge and skills needed to perform them.
• Relates occupational competence to the tools and equipment used in workshop practice.
• Supports a common professional language for automotive maintenance work on gasoline engines.