Stock light bulb replacement list for the 2004 VW R32:

Stock Halogens

Front:
High Beam: H7
Low Beam: H7
Turn Signal: 3357/3457
City Light (small bulb in High Beam reflector): W5W/168
Fog Light (if so equipped): H3 55w

Rear:

Brake Lights: P21W (1156 or 7506)

Turn Signal: P21W (1156 or 7506)

Running/Tail Light: R10W (5008)

Reverse: P21W (1156 or 7506)

Rear Fog: P21W (1156 or 7506)

OEM HIDs

Low: D2S
High: H7
Turn Signal: H21W
Parking Light: H6W