Engine Number/Engine Characteristics

The engine number ("engine code" and "serial number") are located at the front of the engine/transmission joint.

The engine number consists of up to nine alphanumeric characters. If more than 999, 999 engines with the same engine code are produced, the first of the six characters is replaced with a letter.

The first three letters are the "engine code".

The next six digits are the "serial engine number".

If more than 999, 999 engines with the same engine code are produced, the first of the six characters is replaced with a letter.

There is also a label -arrow- on the toothed belt guard that shows the "engine code and the engine serial number".

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The engine code is also listed on the vehicle data label.

The vehicle data label is located either inside the spare wheel well or on the luggage compartment floor panel.

The vehicle data label is also attached inside the customer Maintenance booklet.

Vehicles With A Four-Digit Engine Code 

• Four-digit engine codes beginning with "C" are used.
• The first three digits describe the mechanical structure of the engine and are still stamped on the engine, as before.
• The fourth digit describes the engine output and torque and depends on the Engine Control Module -J623-.
• The 4-letter engine code can be found on the type plate and on the vehicle data label. It is also stored in the Engine Control Module -J623-.