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'89 C4: Where is the rear wiper relay?

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Old 04-27-2013, 11:56 AM
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GeorgeK
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Default '89 C4: Where is the rear wiper relay?

Title says it all. I would like to change it for one that allows only one pass per actuation, but I can not seem to find it, or reference to its position in the owner's manual, workshop manual or online.
Anyone?
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Old 04-27-2013, 01:12 PM
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crg53
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The wiper relay is R42, which is located in the front fuse box.

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Old 04-27-2013, 01:35 PM
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GeorgeK
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No it's not, at least not in my '89 C4.
*rear* wiper relay?
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Old 04-27-2013, 01:46 PM
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crg53
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Sorry George, was thinking of the front wiper.
According to Adrians book the rear wiper relay is "mounted on motor assembly", so my guess is, that it's up under the shelf in the back window. I have the motor assembly in my spare parts bin, will go and check.

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Old 04-27-2013, 01:56 PM
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Here is a shot of the motor assembly with location of the relay.

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Old 04-27-2013, 03:12 PM
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GeorgeK
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Many thanks!
Oh crap, now to take the car apart....
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Old 04-30-2013, 05:33 AM
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LM964
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Not too difficult though. Take out the few screws holding the rear panel and parcel shelf and the motor/mechanism is accessible from there.

Better still, remove the wiper arm and motor - save some weight and use a delete bung for the rear glass!
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Old 04-30-2013, 06:30 AM
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GeorgeK
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Update,
It is indeed child's play to get to the relay on the rear wiper motor
However, I could not resolve my issue.
I want the rear wiper do pass only once per actuation, as opposed to the 2-3 passes it provides now
I tried swapping with the intensive windshield washer relay as recommended on the 993 forum, but no dice. The headlight washer relay is a no-go either

Would anyone know which relay would be a fit-in for a single pass per actuation?
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Old 04-30-2013, 06:38 AM
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I know a few of the relays are also Audi/VW shared. Maybe there's something there that could be used/swapped(?)
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Old 04-30-2013, 06:55 AM
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This is the puppy;

http://www.type911shop.co.uk/shop/ar...6aid%3D4497%26
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Old 04-30-2013, 07:46 AM
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GeorgeK
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Thank you. Seems much hceaper than anything in my fuse box.
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Old 05-03-2013, 10:15 AM
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GeorgeK
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Update,
Done and works. hit the switch, one pass. Want more? Keep your finger on the switch
The relay neded is a basic working relay, with a resistance added between the 85 and 86 terminals. It is often labeled "53". 10$

Last edited by GeorgeK; 12-11-2014 at 02:43 AM.
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Old 05-03-2013, 12:39 PM
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stevepaa
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well now you need to add the rear washer.
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