Engine identification and number

To ensure clear identification and classification, the engines have an identification mark on the crankcase. This engine identification is also necessary for approval by the authorities.

Decisive here are the first seven positions. The N74 engine has an engine identification that complies with the new standard, in which the first six positions are the same as the engine designation. The seventh position is a consecutive letter that can be used for various distinctions, e.g. power stage or exhaust emission standard. A general assignment is not possible, but an "A" usually means the basic model.

The engine number is a consecutive number that permits unmistakable identification of each individual engine. The engine designation and number are on the crankcase behind the bracket for the air conditioning compressor.