Blinkrelais 433953213B Was ist das?

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Blinkrelais 433953213B Was ist das?

Postby Slider2 » 30 May 2017, 20:33

Blinkrelais-433953213B

I'm in the process of tidying up a few wiring gremlins lurking under the dash.
Under there I have found one of these things.... A relay timer device of some kind?
It appears to have factory connectors etc and links in to some of the wires on my diff-lock switch unit. But it is just dangling loose.

Can anyone confirm whether it is a legit part and if so what does it do and where should it be mounted.

Many thanks in advance!
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Re: Blinkrelais 433953213B Was ist das?

Postby spherehopper » 30 May 2017, 20:40

Sounds like an indicator relay. In fact, just did a Google translate on "blink relais" and that's what it was!
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Re: Blinkrelais 433953213B Was ist das?

Postby Slider2 » 30 May 2017, 21:01

But why isnt it just part of the cluster.... And why the three spring loaded contacts.... And why is it just floating loose behind the diff locker panel?! And why not just use a relay with flasher built in?

To me, judging by the shape and contacts, it looks like an 'slot in' module to fit something bigger. But the soldered flying leads look factory done as does the connector on the end. Maybe it is a parts bin special recycled from a previous audi / porsche (from the epc mentions found on google)...?
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Re: Blinkrelais 433953213B Was ist das?

Postby marlinowner » 30 May 2017, 21:24

Im no expert on syncros, but isn't there a flashing light on the diff control panel when front diff is locked?
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Re: Blinkrelais 433953213B Was ist das?

Postby Slider2 » 30 May 2017, 22:11

marlinowner wrote:Im no expert on syncros, but isn't there a flashing light on the diff control panel when front diff is locked?


Aah - thanks for that.... Makes a bit more sense! And helped me find this thread?...
http://forum.club8090.co.uk/viewtopic.php?f=4&t=127059

Thanks again,
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Re: Blinkrelais 433953213B Was ist das?

Postby silverbullet » 01 Jun 2017, 07:12

Its the flasher circuit to warn you that the front diff lock is engaged.

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Re: Blinkrelais 433953213B Was ist das?

Postby syncroandy » 01 Jun 2017, 09:31

The wiring diagram for it is here:

http://syncrosport.com/info/wiring/VW_Transporter_80-92_4x4_No14&15.pdf

The circuit uses the inputs from the vacuum switch (just behind the difflock controls) and the switch on the front diff itself. When vacuum has been applied by pulling the switch, the LED flashes the driver to warn him or her steering is about to be compromised. When the lock engages, the warning lamp changes to steady to show the lock is operational.

Re. mounting, originally it had a thin layer of foam rubber glued on each side to prevent rattles and short-circuits (it has ignition live on it), and its just tucked away behind the locker controls. You could cable-tie it to stop it flopping about I suppose..
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Re: Blinkrelais 433953213B Was ist das?

Postby Slider2 » 01 Jun 2017, 11:26

Thank you for he information gents - very helpful.
I was indeed concerned about it's exposed connections so will do something about that before the covers go back on.

I'm guessing it is fairly redundant for the moment.... Seeing as a previous owner has replacd the front diff with one without a diff-lock ( or even holes in the casting to recieve one!). Functionality of this circuit is a bit academic until the front diff gets replaced with a correct part!

Cheers?
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Re: Blinkrelais 433953213B Was ist das?

Postby bene » 01 Jun 2017, 13:44

Slider2 wrote:Seeing as a previous owner has replacd the front diff with one without a diff-lock ( or even holes in the casting to recieve one!). Functionality of this circuit is a bit academic until the front diff gets replaced with a correct part!

Cheers?


Well thats a bit of a bugger.... why would somebody do that? availability i suppose but still.
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