When doing replacement or upgrading on 1990 – 1995 Volkswagen Corrado, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

High Beam and Low Beam Headlight 1990 – 1995 9004
Back Up Light 1990 – 1995 1156
Brake 1990 – 1995 1157
Dome Light 1990 – 1995 578
Front Side Marker 1990 – 1995 12929
Front Turn Signal 1990 – 1995 P21/5W
License Plate 1990 – 1995 T4W
Parking Light 1990 – 1995 1157
Rear Side Marker 1990, 1992 – 1994 12929
1991, 1995 T4W
Rear Turn Signal 1990 – 1995 1156
Tail Light 1990 – 1995 1157
Center High Mount Stop Light 1990 – 1995 194