How can I install programmable wiper control in my car like the new cars have?

• The programmable wiper control allows you to program the interval time. Because VW does not like to add new knobs and wires, they have put all the control in the relay in a type of teach and play back mode. If your old windshield wiper relay part number is 191 955 531, then you can swap it with the programmable unit: 357 955 531 or the new number 1HM 955 531B for under US$40. Note, APS sells these control units for about 10US$ less. The APS part number is: 25-955. ... more