Where is the engine number located on an Audi A6?

[ODelaney]

The engine number of the A6 is located on the lower left side of the engine, near the flywheel position. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and the attributes of the engine. It is used to represent information such as the manufacturer, specifications, performance, features, manufacturing process, intended use, and production batch of the engine, including details like fuel type, number of cylinders, displacement, and static braking power. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and the attributes of the engine. It is used to represent information such as the manufacturer, specifications, performance, features, manufacturing process, intended use, and production batch of the engine, including details like fuel type, number of cylinders, displacement, and static braking power. Engines installed in passenger cars or multi-purpose passenger vehicles are required to clearly indicate the professional engine manufacturer, model, and production number. It is important to note that the engine number is not the same as the engine model. The engine model refers to the specifications and size of the engine within the manufacturer's product line, and multiple engines can share the same model. The engine number, however, refers to the production number of the engine, with each engine having a unique number that cannot be duplicated. Composition of the engine number: Prefix: Includes product series code, generation symbol, and regional or corporate code. Manufacturers may choose appropriate letters as needed, but these must be approved and recorded by the industry standard regulatory body. Middle section: Consists of symbols for the number of cylinders, cylinder arrangement, stroke, and cylinder diameter. Suffix: Comprises symbols for structural features and intended use. Tail: Distinguishing symbol. When differentiation is required due to improvements or other reasons within the same product series, the manufacturer may select an appropriate symbol. The suffix and tail can be separated by a hyphen (-).