* Golf 1.8T: This model had a 1.8-liter turbocharged four-cylinder engine.
* Golf GLS 1.9TDI: This model had a 1.9-liter turbocharged diesel engine.
* Golf GLS 2.0: This model had a 2.0-liter four-cylinder engine.
* Golf GTI: This model had a 1.8-liter turbocharged four-cylinder engine.
The most common base engine for the 2002 Golf was the 1.8-liter turbocharged four-cylinder engine. However, it's essential to know the specific trim level to determine the exact engine size.