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CL7 Indicator/Daytime running lights mod

DLR LED Mod

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#21 zav13r

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Posted 17 June 2017 - 02:31 PM

Hi All, has anyone tried this since the OP? I've had kit delivered and looks to be ok quality considering its from China. A little confused by the additional wiring for sidelights though. Is it just a case of stripping the existing wiring back and soldering/joining this in?

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#22 Sinkewa

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Posted 17 June 2017 - 11:21 PM

Hi All, has anyone tried this since the OP? I've had kit delivered and looks to be ok quality considering its from China. A little confused by the additional wiring for sidelights though. Is it just a case of stripping the existing wiring back and soldering/joining this in?

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Hi, yes, the wire for drl lights has to be joined to the positive wire of the stock side lights. The pcb inside each bulb will take care of switching between white and amber leds. 

 

The way this work,is there is three wires out of the bulb, the positive for amber, the positive for white, and a common ground for both white and amber lights. The ground is  supplied via stock indicator connector. When + is supplied to the drl wire (the extra wire that has no connector on it), white leds are turned on. When + is supplied to the indicator wire (the one with the wedge type connector), amber leds come on. The + can be supplied to both, drl and indicator wires at the same time, but indicator will have priority, so when you have your drl's on and indicate, drl on that side will go out and indicator will come on, and as soon as indicator is canceled the drl will come back on after a 1 second delay.  Sorry if I made this a bit confusing, never been good at explaining stuff to people.

 

The way I have done mine the first time is, I've stripped a small portion of insulation on positive wire of stock side lights, just behind the bulb connector, soldered the drl wire to it, and wrapped it with some good quality electric tape. I have since then redone it with crimp splice connectors and heat shrink. Both methods work fine, and never caused any problems, but crimping and heat shrinking just feels more reliable.

 

I would also suggest adding a relay to turn drl's off when main lights are turned on, because, although these drl's don't look as bright in the daylight, they can be quite a nuisance to oncoming cars during the night. Also, in UK it is required by law.



#23 zav13r

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Posted 18 June 2017 - 07:59 AM

Perfect answer mate and all very clear so thank you. Going to give this a go in the next few days I think.

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#24 zav13r

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Posted 19 June 2017 - 11:00 PM

When you mention a relay, do you mean something along these lines: http://www.ebay.co.uk/itm/162430544717

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#25 Sinkewa

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Posted 20 June 2017 - 07:13 AM

When you mention a relay, do you mean something along these lines: http://www.ebay.co.uk/itm/162430544717

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No, I've used one of these before, and although it seemed ‚Äčto work fine at first, eventually caused one of the bulbs to blow. The problem with these modules is they are using duty cycle method to dim the drl when main lights are turned on, and it messes with the circuits in the drl bulbs as they are being turned on and off rapidly many times a second. In my case it had blown an IC in one of the bulbs and caused a short between sidelight and indicator circuit, causing all the indicator lights to glow when side lights where turned on. Fortunately it didn't cause any damage to cars stock circuits. So wouldn't advice to use it.

I have used a good old fashioned electromagnetic relay, that is in a normally closed position.
One like this
http://www.ebay.co.uk/itm/290919977733

You put the switch side of the relay in series between your sidelights and drl, and connect the coil side to positive of your headlight at one end, and to the ground anywhere on the chassis at the other end. That way, when sidelights are turned on, the drl's will come on as well, but when the headlights are turned on, it will cause the relay to open the drl circuit, turning drl's off.

I've connected the ground of a relay to one of the bolts, that hold the airbox in place, and used a length of a bicycle tube with cable ties at both ends to protect the relay from elements, and some double sided tape to hold the whole thing in place.
Would also advice to use an inline fuse for the coil circuit of the relay with a low amp fuse, to avoid getting your headlight circuit fuse blown in case something goes wrong with the Chinese relay.
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#26 zav13r

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Posted 02 July 2017 - 12:03 PM

I've finally got round to fitting this yesteday and I love it! Thanks to @Sinkewa for the diy and advice. Still need to wire in the relay but as I rarely drive the car at night this can wait for now.

If you like the idea of this but are worried about wiring, it really is straight forward.

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#27 Sinkewa

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Posted 03 July 2017 - 06:51 AM

Always happy to help.

#28 Timberfake

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Posted 24 July 2017 - 07:45 PM

What do you guys think of this mod?

https://youtu.be/B6ZciIZrm9k

Basically I always wanted DLR lights, but couldn't face drilling the bumper, or attaching lights with cable ties etc. and ruining the look of the car. So I found this bulbs on ebay ( http://www.ebay.co.u...dgAAOSwgQ9VrftX ). Similar to what Audi A6 has. They fit instead of your normal indicator bulbs and one extra cable attaches to your sidelights. When you turn your sidelights on they light up white, when you put your indicator on the white on that side goes out and amber light comes on, then when you cancel the indicator, there is about a second delay and white light comes on again. I think they look awesome and go really well with led sidelights.

Tell me, what you think.

If anyone is interested I might do a tutorial on this, as just changed my saloon cl7 for a tourer recently, and thinking of moving this mod over to new car.

I like you should..

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