Engine number
WARNING: This page is about a different car, the 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, 2004 Volkswagen Jetta, and 2004 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
The engine number ( "Code letters" and "Serial number" ) can be found on the joint between engine/gearbox.
Additionally there is a sticker on the toothed belt guard with "Engine code" and "Serial number".
The engine code is also included on the vehicle data plate.
The engine number consists of up to nine characters (alphanumeric). The first part (maximum 3 characters) makes up the "engine code" , and the second part (6 characters), the "serial 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.