For 2001 - 2002 Golf, GTI, Jetta
Engine identification number is stamped on a machined pad on front of engine block, below cylinder head, where engine and transaxle mate together. In addition there is a sticker on the valve with engine code and engine serial number. Engine code is also included on the vehicle data plate.

Section :
1.8L Turbo, Automatic A/C Circuit, Anti-lock Brake Circuits, Late Production W/O Traction Control, Anti-theft Circuit, Ground Distribution Circuit

Main Wiring Diagram, 2.8L Gas Engine, Engine Code AAA

Section :
Technical data, Engine, Assembly, Crankshaft, Cylinder block, Cylinder head, Valvetrain, Lubrication, Cooling system, Fuel Supply, Exhaust system, Emission controls