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Adding a programmable intermitant wiper relay
Variable Intermittent Wiper

The following explains how to install a 'programmable' intermittent relay which will give a intermittent wiper time interval from 2 to 45 seconds. The time interval is programmed using the wiper stalk switch. The relay is Bosch P/N 0 986 335 058. It should cost between $30 and $40 from any one of the following:

* Automotive Performance Systems (800-423-3623)
* Wolf Sport (800-342-8669)
* VW or Audi dealers -- VAG P/N 1HM 955 531 A (the "A" is the important part, but this part has been superceded, so when you ask for it, they may give you a part that ends with "B" which should operate the same. Note that the "C" version reportedly does _not_ work, though...)

Installation: This relay takes the place of the relay in position #9 in the main fuse box under the hood. The relay to remove is white and has a large 271 printed on the top. Its part number on the side was 443 955 531. Remove this and replace it with the 'programmable' relay.

Operation:

1. Turn the wiper switch to the intermittent position then turn it to off. The wiper will wipe once.

2. When you need the wiper to wipe again, you place the wiper switch to intermittent and leave it there. It will remember the time interval and repeat the wipe at this interval.

3. To change the interval, just turn to off (wiper will wipe) and then turn back to intermittent position to set the new time interval.

4. The relay is reset to a 6 second default interval when ignition is turned off.