Again - auto headlight retrofit. Where to get harness?

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wide23
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Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

Hello,

I want to install automatic light swith in my Polo 6r with stock xenon lights, stock rain sensor and "D" in VIN number. I read about ciclo's harness but they are no longer aviable. Where can I get it now? Any another manufacturer? Or where can I find details about part numbers of connectors, pins/socket type, and diagram to make it myself?

Best regards
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iichel
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Re: Again - auto headlight retrofit. Where to get harness?

Post by iichel »

I've made a few in the past, if you're handy you can make them yourself as well.
wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

iichel wrote: Sat May 06, 2023 10:19 pm I've made a few in the past, if you're handy you can make them yourself as well.
Yup, could you support in details like part number list?
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Re: Again - auto headlight retrofit. Where to get harness?

Post by peter_dk25 »

wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

Is it for stock light switch?
How about harness for switch with "auto position" (I prefer to use)?
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Re: Again - auto headlight retrofit. Where to get harness?

Post by peter_dk25 »

Ask the shop....
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iichel
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Re: Again - auto headlight retrofit. Where to get harness?

Post by iichel »

10 pin connector contra 191972735
10 pin connector F 191972725
2 pin connector M 1J0972752
2 pin connector F 1J0972762
10 pin connector light switch 8E0971980
double relay holder 4H0937529 (MY2013+) OR 8E0937527

These are the parts I use. The original version is with a 10-pin ISO connector instead of the 191...

I got to say that's pretty cheap at x2car.de, I usually sell at about double that price, albeit with a light switch and installation.

This is what mine look like with the part numbers as mentioned above

Image
wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

Perfect, thanks!

So as I understand there is no exist female side for OE 1J0 972 999 to make this harness more plug&play, right?
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iichel
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Re: Again - auto headlight retrofit. Where to get harness?

Post by iichel »

That is correct yes
wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

Thanks, parts ordered!

Can I ask about section lengths as well? (it can be helpful for someone in future):

Image

A ?
B ?
C ?
D ?

I check what I need for BCM and I prepared some tabele. Is it correct?

Image


According 4H0 951 253 C relays holder I'm little confused:
JPT sockets OE: N 906 844 05 (1mm2 cross section, rep. cable OE: 000 979 133 E / (no exist size socket for 0,5mm2 but exist 0,5mm2 rep. cable OE: 000 979 021 E)) - for pins 1,2?
MCP 4.8 OE: 018 545 49 26 (rep. cable: 1mm2 OE: 000 979 152 E or 2,5mm2 OE: 000 979 243 E) for pins 3,5 ?
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ciclo
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Re: Again - auto headlight retrofit. Where to get harness?

Post by ciclo »

I made them with the next approx lengths to facilitate the installation, and accommodate the wires in a harmonious way so it won't be a nightmare every time you remove any of the BCM connectors.

A=20mm
B=60mm
C=10mm
D=135mm from the original connector T10/2 to terminal 37a. The length of the wire for terminal 1a will then be defined.
F Fog signal = 85mm

With these lengths you have plenty to make the rectifications you need when crimping the terminals.

Relay holder 4H0937527 (in your case, 'D' MY).

https://www.a4-freunde.com/showwiki.php ... uebersicht

Image

https://drive.google.com/file/d/0B2nv91 ... N3bT1BRvUA
wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

ciclo wrote: Thu May 11, 2023 3:37 am A=20mm
B=60mm
C=10mm
D=135mm from the original connector T10/2 to terminal 37a. The length of the wire for terminal 1a will then be defined.
F Fog signal = 85mm
Centimeter’s, I’m pretty sure? 😉
Thanks a lot.
ciclo wrote: Thu May 11, 2023 3:37 am
With these lengths you have plenty to make the rectifications you need when crimping the terminals.

Relay holder 4H0937527 (in your case, 'D' MY).

https://www.a4-freunde.com/showwiki.php ... uebersicht

wd alw pic

https://drive.google.com/file/d/0B2nv91 ... N3bT1BRvUA
Yup, my conclusions comes from your data from another topic. Now I have relay holder in my hands so I think I was right.

What is release tool for MPC4.8 socket?
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ciclo
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Re: Again - auto headlight retrofit. Where to get harness?

Post by ciclo »

wide23
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Re: Again - auto headlight retrofit. Where to get harness?

Post by wide23 »

ciclo wrote: Thu May 11, 2023 12:57 pm centimeters.

https://www.ebay.co.uk/sch/i.html?_from ... ol&_sop=15
Ah, so this same type. OK.

Are you sure about wire cross size for relay pin no1?
I have relay holder with a piece of stock wiring loom. Pins 1, 3, 5 has this same diameter. Bigger than you suggest for pin no1 on scheme - 0.5mm2

Regards
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ciclo
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Re: Again - auto headlight retrofit. Where to get harness?

Post by ciclo »

Through pin 1a the BCM sends the signal for low beam operation (Auto or normal), that is, it is a signal with which a wire section of 0.35 mm2 would be more than enough.

There are multiple reasons to determine the section of the wires in a relay holder...
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