Wiper Motor for Column Mounted Switch > Beetle 1970-197912 volt windscreen wiper motor for flat screen 1300 1500cc models with column mounted switch and 1200 deluxe models from 1976 on. Not 1303 or standard 1200cc models. The original wiring colours terminal is as follows: 53a black grey, 31b or 53e green, 53b black yellow, 31 brown, 53 black. For new motors with mixed coloured wiring the red wire is the earth wire terminal 31, the green wire is the slow speed terminal 53, the yellow wire is the fast speed