Wednesday, 5 June 2013

Wiper relay upgrade

As standard the Defender has 3 speed settings for the front window wipers:

  1. Continuous Slow
  2. Continuous Fast
  3. Intermittent (every 5 seconds)
In addition the wash wipe function wipes three times for every button press.

In light rain or road spray the intermittent wipe is often too slow and the Continuous slow setting can be too fast. To fix this, the standard (Red) wiper relay has been replaced with one from a Skoda (Black). It is very common to use  a VW relay, but the Skoda variant does pretty much the same job and is easier to obtain since it is scarcely mentioned on guides.

The photos below show the two relays and their position in the fuse box.
    



As a result the intermittent wipe time can now be programmed by turning the intermittent wipe on and then off after the length of time you want the wipe cycle to be. When you turn the intermittent wipe on again, it will assume the cycle time you set. I have tested settings from 1 second up to around 10 seconds.
In addition, the new relay also reduces the number of wipes from 3 to 2 when activating the wash/wipe for a short burst, but maintains the 3 wipe cycles when activated for a long burst.

3 comments:

  1. can you advise the part number of the relay you have utilised
    thanks

    ReplyDelete
  2. Hi Mark,
    thanks very much for sharing your knowledge!!!!!!
    Great yuor ideas, you should have been working at Landrover improving the Defender to a higher standerd!
    Thanks for all the fantastic ideas I have never thought about!
    The Check Temp III modification goes beyond my abilities but there
    are some other mods I am definitevaly going to work on!
    The Check Temp modification however I think I can install the display in the angled side part of the dash.....
    As a first can you help me with the wiper interval relay's part number please? Thanks again in advance!!
    Dirk Bal
    Defender 110, Santorini Black, 2007 2,4 Tdci, 118000 Kms

    ReplyDelete
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