T3 headlight relay modification??? |
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youthy giblets
Vanorak Joined: 29 Jul 11 Location: Darlington Status: Offline Points: 2117 |
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Posted: 05 Jan 12 at 21:50 |
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Read somewhere that I can improve the headlights by altering some wiring and the headlight relay, anyone know anything about this mod?
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Steve B
Vanorak Joined: 26 Apr 05 Location: Mong free zone Status: Offline Points: 13190 |
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Sure I saw something about it on the inside of last nights takeaway box....or was it on here when searching for headlight relay or headlight upgrade?
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Tee3
Admin Group Coprophagous Cretin Joined: 06 Jun 04 Location: Huddersfield Status: Offline Points: 9763 |
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there is no headlight relay... thats the problem.
You can add one... Simple relay wiring, edit... see below Edited by Tee3 - 05 Jan 12 at 22:03 |
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YOU CANT EDUCATE GAMMON http://www.tee3.co.uk/ |
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Tee3
Admin Group Coprophagous Cretin Joined: 06 Jun 04 Location: Huddersfield Status: Offline Points: 9763 |
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i'd do it slightly differently 1 relay for dip, another 2 for the main beams. Edited by Tee3 - 05 Jan 12 at 22:03 |
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YOU CANT EDUCATE GAMMON http://www.tee3.co.uk/ |
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club joker 84
Groupie Joined: 21 Jul 09 Location: Cornwall Status: Offline Points: 138 |
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Do it! One of the best things I've done to my van. Add a pair of "Nightbreaker" bulbs for the full effect. A huge improvement over standard
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youthy giblets
Vanorak Joined: 29 Jul 11 Location: Darlington Status: Offline Points: 2117 |
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Sarcasm is the funniest form of humor!!!! |
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Steve B
Vanorak Joined: 26 Apr 05 Location: Mong free zone Status: Offline Points: 13190 |
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and humour.
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Tee3
Admin Group Coprophagous Cretin Joined: 06 Jun 04 Location: Huddersfield Status: Offline Points: 9763 |
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Also worth mentioning the earths... if youre going to the trouble of fitting relays, split the earths up and earth them to the body near the lights, rather than the standards setup where the spindly little earth wires go all the way back to the earth spider by the fuse box.
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YOU CANT EDUCATE GAMMON http://www.tee3.co.uk/ |
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caron666
Vanorak I'M NOT A BIRD, HONEST! Joined: 15 Jul 08 Location: Pembrokeshire Status: Offline Points: 2130 |
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I thought sarcasm was the lowest form of wit? |
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If it's got tits or wheels sooner or later you're going to get problems.
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Steve B
Vanorak Joined: 26 Apr 05 Location: Mong free zone Status: Offline Points: 13190 |
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and also the highest form of intelligence.
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Red Westie
Yardie Joined: 23 Feb 07 Location: United Kingdom Status: Offline Points: 567 |
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I modded that diagram a little with more detail to suit a twin square lamp T3....I'd probably split the earth and have one each side somewhere behind the lamps. You really only need two relays but I would recommend a 40amp for the full beam (30amp for the dip). Martin
Edited by Red Westie - 06 Jan 12 at 01:09 |
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shelly
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sdelasal
Groupie Joined: 18 Aug 07 Location: Essex Status: Offline Points: 122 |
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and where is the best place to mount these relays then and cut into the loom?
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steve
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Titus A Duxass
Vanorak Joined: 12 Feb 08 Location: Lossatal, Germ. Status: Offline Points: 2164 |
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Mine are behind the headlights.
I made flying leads to going into the original headlight bulb connector. You could use a duff bulb to get the connecting spade. |
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Bollocks to it all!!
51°24′N 12°52′E |
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syncroandy
Yardie Joined: 18 May 05 Location: North Lancs. UK Status: Offline Points: 630 |
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When I did this mod, I placed the relays into the existing main and high-beam wires coming from the switch. I think they are rated OK, the weakness in the original design is more the switch taking the full load, and the earthing. I cut into the yellow and white wires just behind the relay plate, and used two VW relay holders which snap onto the relay plate. I got 12v from a spare term 30 on the back of the relay plate. I did add separate earth wires for each light, and brought them back inside and onto one of the earthing crowns. This approach keeps everything inside out of the wet, and makes for a neat install IMO.
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Titus A Duxass
Vanorak Joined: 12 Feb 08 Location: Lossatal, Germ. Status: Offline Points: 2164 |
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That's well tidy that is!
Think I'll have to revisit mine. |
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Bollocks to it all!!
51°24′N 12°52′E |
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syncroandy
Yardie Joined: 18 May 05 Location: North Lancs. UK Status: Offline Points: 630 |
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Maybe I should I add i didn't take the dash just to do this !
It was already out to upgrade the brake servo (thx. Charlie, did it at last !) so it was an ideal chance to sort one or two wiring jobs. |
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Titus A Duxass
Vanorak Joined: 12 Feb 08 Location: Lossatal, Germ. Status: Offline Points: 2164 |
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Off topic - How much of a difference did the servo upgrade make?
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Bollocks to it all!!
51°24′N 12°52′E |
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syncroandy
Yardie Joined: 18 May 05 Location: North Lancs. UK Status: Offline Points: 630 |
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Significant I would say. One thing I did notice though, was there is slightly more drop in the pedal before the brakes bite, compared with stock. At first this concerned me, but I soon got used to it.
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youthy giblets
Vanorak Joined: 29 Jul 11 Location: Darlington Status: Offline Points: 2117 |
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Have you found it much of an improvement to the standard set up? |
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syncroandy
Yardie Joined: 18 May 05 Location: North Lancs. UK Status: Offline Points: 630 |
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Yes, it does make a noticeable improvement. I guess it may depend to an extent how worn-out the old switches are (how much voltage-drop they cause). Definitely worth the hours work and a few bits IMO (assuming you have old relays etc. lying about). The later cars I've seen do have relays as std. so VW obviously thought so. |
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