Wiper Upgrade Wiring Diagram

113 posts in this topic

Posted (edited)

since I'm going to work on my 73 wiper system,

I made a diagram for both intermittent wiper and electric windshield washer.

This diagram is basically a German optional intermittent wiper diagram.

I added wiring for windshield washer borrowed from Porsche 944 diagram (53c, V5).

post-655-1301388581_thumb.jpg

my switch is from early Rabbit but some 74-later Beetles have all necessary terminals.

Those late switches have 7pin connector while 73-earliers have 5pin.

Other than that, they are in same shape.

I exchanged the connectors so that I can install late switch to early steering column.

(easy snap on assembly. take care not to break the prongs)

There are only 5pins, compared to 6 wires to use.

1 wire (windshield washer) loses his home, but there is much space for the wire get through in the steering column.

I need to attach a new terminal to the wire, though.

If your car is 74-later, you don't have to do this conversion.

The relay must be early water-cooled VW or early Porsche.

Joel mentioned that later relays are different from this diagram.

you can use any washer pump.

I use a pump for Porsche 924 to make it like Genuine.

it is also same as some early water cooled VWs.

Edited by Takashi

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Posted

Thanks Takashi, I will pin this to the top.

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Posted (edited)

The intermittent Relays from later watercooled VWs (7 pin) are different system and don't work in aircooled cars without some wiring modifications

To save making another sticky on the topic for anyone interested in adapting the later watercooled system which also has the variable delay option I wrote a tech article on it here

http://forums.aussieveedubbers.com/viewtopic.php?tid=86544

Edited by Joel

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Posted

Thank you Joel.

Your article is awesome!

For people who will read this thread later, I edited my first post.

This is Porsche diagram for the early intermittent relay.

It explains inside the switch.

post-655-1301476691_thumb.jpg

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Posted (edited)

I made a diagram for #99 relay based on Joel's article.

Joel's diagram is very easy to understand, but I wanted 53c terminal and familiar look & feel.

Wire colors are similar to genuine Super Beetle,

and some additional wire colors are similar to '90s Golf.

Parts written in red are what you need to get.

Part numbers don't mean nothing.

I used numbers that wouldn't used on genuine diagram.

E99: 171 953 519 or similar

J99: 357 955 531 or similar

J100: BOSCH 0 332 014 151 or any 5 pin relay

V99: VDO 246-075-021-006C or any pump

[ picture deleted ]

I did mistake!!!!

I will post again when i finished

Edited by Takashi

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Posted

V99: VDO 246-075-021-006C or any pump

The original VW pump is listed as NLA and is expensive; however, it's the same pump that was in the early Porsche 924/944 which is easy to find and relatively cheap used.

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Posted

The original VW pump is listed as NLA and is expensive; however, it's the same pump that was in the early Porsche 924/944 which is easy to find and relatively cheap used.

yes, the VDO pump i listed is current oem part for porsche.

i bought it as bmw 2002's.

maybe you can find it at a junk yard.

(if you want genuine look)

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Posted

(if you want genuine look)

Here is the genuine VW washer tank with the pump attached to the back side of it, these were very very rare, it took me 7 years to find one.

gallery_371_0_17711.jpg

post-371-1303265871_thumb.jpg

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Posted

Here is the genuine VW washer tank with the pump attached to the back side of it, these were very very rare, it took me 7 years to find one.

great find!!!

well, i think i made mistake on the diagram.

I will redo it.

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Posted (edited)

sorry for messing up.

It was not mistake.

i just changed the wire color between 87a and J.

This is the final version i hope.

post-655-1303276848_thumb.jpg

Edited by Takashi

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Posted

I got a quick look at your diagram before you pulled it down Takashi.

That's very impressive work.

I'll add it to my article once you finish updating.

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Posted (edited)

I got a quick look at your diagram before you pulled it down Takashi.

That's very impressive work.

I'll add it to my article once you finish updating.

Thank you Joel.

but i have a question before work.

87a will be ON while the switch is in both intermittent ON or washer ON.

does J signal override while both T & J are ON?

Edited by Takashi

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Posted

87a has no power while off, only in intermittent.

The wash/wipe function overides the intermittent.

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Posted

87a has no power while off, only in intermittent.

The wash/wipe function overides the intermittent.

today, i did all job.

intermittent always ON while Ign. is ON....

i will check what is wrong tomorrow.

it must be S terminal problem.

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Posted

If it's doing that it just means the change over relay isn't powering up.

So either its not getting the ground from the wiper switch or the power from the fusebox.

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Posted (edited)

If it's doing that it just means the change over relay isn't powering up.

So either its not getting the ground from the wiper switch or the power from the fusebox.

it was easy mistake.

i connected S wire to 53c terminal, and 53c wire to S terminal.

after corrected, it works perfectly.

one thing no good is it's sunny today.

Edited by Takashi

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Posted

I made the diagram redone.

If nobody finds no problem, this is the final update.

post-655-1303819634_thumb.jpg

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Posted

All looks good to me. :thumbup:

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Posted

Hi Guys,

I'm about to go ahead with the intermittent wipers conversion of my '75 1303 and I have a queastion:

Do I need a new or different wipers motor for intermittents?

I have not seen any indication on that in your comments or The Samba forums, but I've been told that I might need a different type of motor.

By the way, I'm planning to use the ".99" relay.

Thanks!

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Posted

Have a read of my aussieveedubbers thread, that explains everything.

And no you don't need to touch the wiper motor, that's the beauty of this conversion.

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Posted (edited)

Have a read of my aussieveedubbers thread, that explains everything.

And no you don't need to touch the wiper motor, that's the beauty of this conversion.

Thanks a lot Joel, excellent thread and info !

Martin

Edited by fusca75

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Posted

Hi everybody.

Thank Joel and Takashi for this usefull info, now my 1973 super beetle works with intermitant wipers, I want to share my adaptation.

I used the original wiper control without S1 terminal, so I installed an extra contact in order to get stalk intermitant position signal, it because I did not want to use an external switch.

I took this contacts from an old dvd player.

a couple of pictures.

P1020916b.jpg

P1020922b.jpg

Sorry for any writting mistake, actually I dont speak English.

Regards

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Posted

i finally got an electric tank!

post-655-1358072177_thumb.jpg

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Posted

I want one too! Or two!

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Posted

Congrats Takashi!!!!!!!!!!!!!!!!! as I've said it took me years and years to find mine. "Oxi-clean" made mine white again. Now, to have the headlight washer system that goes with it like I have, good luck!

gallery_371_0_18666.jpg

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