12-26-2014, 04:10 PM | #1 |
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Best way to hook up LED DRLs to BMW battery posts
I'm trying to hook up some Philips LED 8 Daylight Running Lights to the charging posts under the hood and i was slightly dismayed to see that these posts are not what i'm accustomed to seeing.
This is my first BMW and i'm used to seeing the old-school type of battery posts under the hood - actually i'm used to seeing a battery under the hood Anyways, the LED DRL power clips are those defacto red/black clips that normally attach to an auxiliary post off the main battery terminals, but in BMW F30s, there's only a single huge 1/2" post available. I guess nothing is meant to really be attached here as its primary purpose is for jump starting a car with jumper cable clamps. Anyone know of a good adaptor that allows me to attach these clips to this post to power the LED DRLs? Or perhaps there is even a better or more clever way to apply power to the DRLs? There must be some other power source interface that was designed to attach applications like this. Thanks in advance! |
12-26-2014, 04:51 PM | #2 |
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You're going to have issues other than figuring out where to wire them. BMW electrical systems don't like you to add on like that.
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12-26-2014, 04:57 PM | #3 | |
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Someone on a different forum didn't seem to indicate any issues with the same car. |
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01-03-2015, 01:20 AM | #4 |
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booyah
After more digging i saw that piggy backing on existing circuits could potentially void the warranty if there are any electrical issues.
So... i decided to play it safe and tap into the unused 12v aux lighter port under the glove box. Had to run wires from engine bay into cabin through firewall... what a PITA, but learned a TON. Next up.. PDC front/rear and rearview cam retrofit! |
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01-04-2015, 11:19 PM | #8 |
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i installed it as much for function as i did for form... but i haven't driven car yet since i finished the install, so i can't answer that question yet. I'll let you know my impressions in a week or so.
Btw... after noticing how big of a color discrepancy there is between the new LEDs (pure white) and the gharish orange/yellow stock halogen lights are, i'm going to replace the stock DRLs and the parking lights with LEDs, and do a xenon HID retrofit. Everything will be a matched pure white 6000k color temp. Just ordered the DRL and parking light LED bulbs tonight, and need to do a little more research on the xenon HIDs. AND THEN i'll move on to the OEM PDC/rearcam retrofit |
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01-06-2015, 09:19 AM | #10 |
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LOL... All you had to do was clip these off and crimp on a ring terminal to fit the stud under the hood in your picture... That's where I got power for my motorized plate. That is the main power source from the battery located in the engine bay for jumping. Can't get a better 12v power supply than that stud. A great ground is up front against the passenger side fender with a similar but smaller stud where you see they grounded their components.
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01-06-2015, 07:13 PM | #11 | |
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j/k actually, (to my dismay) I found the extra power posts/studs under the battery post cover _after_ first taking apart the inside cabin (e.g. a-pillar, lower glove trim, glove box, floor trim). And they were pretty close to the standard size i need to hook up the DRLs with those clips, but i figured since i already did the hard work, i'll just use this 12v aux port like i originally planned. But i have other retrofits planned later where the power studs will come in handy. So yes, while i feel like an idiot now, i don't regret taking apart the inside, because i learned a ton of s*** I tried to do everything to make the install look as clean and OEM as possible including wire routing, cable tie everything, and wrapping all the wires using the OEM cloth electrical tape similar to what BMW/Mercedes uses for their wire running. Its hard to tell anything was done under the hood except for the control module that had to be stuck to a clean bare metal area. Everything else is tucked under existing wiring or under the rubber lining running along the edge of the engine bay. I tried to install the DRLs under the lid of those edge grills to make them as inconspicuous as possible. The nice thing is that if i have to sell the car one day and the potential buyer wants a clean OEM car as possible, i just have to clip off 4 cable ties to remove them, and another 5 mins to pull all the wires out. There was no cutting, no glue, no screws, no holes, no cut wires in the car. No harm, no foul ... |
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01-06-2015, 08:31 PM | #12 | |
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Last edited by squidlyboy; 01-06-2015 at 08:40 PM.. |
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01-06-2015, 09:00 PM | #13 |
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Oh thanks for the pics! It definitely looks much brighter in the pictures as opposed to real life situation huh? I may be in the minority but i think the contrast of the more yellow drl up top and white led on bottom looks good.
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01-17-2015, 12:42 AM | #14 |
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Don't mean ta disrepect you, but its my car ... booyah ya know i luv ya jig, right?
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01-17-2015, 07:12 PM | #15 |
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I wouldn't recommend hooking your aftermarket DRL directly to your battery because it can cause your battery to die unexpectedly since the power is constantly on. A proper way to power something like this is by tapping into the ACC or IGNITION-ON HOT WIRES, where power would time out once your car is off or key is removed. A generic DRL harness or a more popular DAEOS DRL harness are recommended for extra protection.
since your car has stock DRL, an easier solution to power your aftermarket DRL is by tapping into the power source of your stock DRL. I believe you can reach to the wires from the back lids of your headlights. |
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01-18-2015, 12:34 AM | #16 |
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Thanks for the info... fortunately, i did tap into the ACC, but it was in the passenger cabin aux port. It woulda been much easier to tap into the stock DRL power, but i didn't have a wiring layout of the headlight assembly at the time. Oh well...
Speaking of DRLs... I guess these will suffice for now, i'm really bummed out that my F30 didn't come with the Angel Eye DRLs that i had just assumed BMW outfitted with ALL their cars from top to bottom (i.e. standard equipment/option). I mean.. thats one of BMWs signature moves. It like getting a pair of Air Jordans without the Jumpman logo. I've looked high and low for Angel Eye / Corona retrofits, DIY after-market LED Halo Rings, blueaudi18, ONEighty NYC, OSS, but there always seems to be SOMETHING that prevents a good (complete) solution. And by that i mean, good quality LED lighting (low burnout rate), classy, simple, clean OEM look. I wouldn't mind going DIY route, but none of the Corona LED rings i've found are good quality. The best of rest of the alternatives right now seems to be the Mars Performance retrofit, but i'm a little meh on the style. Not aggressive enough for my tastes, but whatever. But ... if you happen to hear of anything promising over the horizon, Gullit ... |
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08-24-2015, 01:48 PM | #17 |
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Help with DRL Install
I have a 2011 BMW 528i and bought some oem direct fit led drl's. Here's the link:
http://store.ijdmtoy.com/BMW-5-Serie...s-p/70-707.htm. I live in Chandler, AZ and was wondering if you could help me with the install, I would be willing to pay for it. Thanks! |
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08-24-2015, 09:22 PM | #18 |
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Daymmm... those look absolutely DOPE - super clean and OEM. would love to see them up close. tell you what... have a couple of 4-packs of DogfishHead 90 minute IPA on ice and i'll be over to help
Oh yah.... and Welcome to the Madhouse!!!! |
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04-01-2016, 07:22 PM | #19 |
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hey
how did you mount your phillips 8 DRL's? is there a thread for it? within some other thread?
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04-02-2016, 01:06 AM | #20 |
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Yah, this thread
The key is using the mounting bracket and using it to secure the DRLs to either the grill or to the lip, depending on where you are wanting to put it. The bracket has a number of holes that you can use to your advantage to either cable-tie the bracket to the grill or to screw on to the lip. Remember, this is done at your own risk to your car... i am NOT responsible for what happens if something should go wrong ... This is what i did... not saying you should do this... If you are placing them under the "lip edge" of your front bumper just beneath the headlights ...
If you are placing them on your splitter ...
I've had my DRLs on for over a year now, with no issues, so i'm pretty sure what i did is fine. But again, what you do ... you do at your own risk |
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05-07-2016, 12:56 AM | #21 | |
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05-14-2019, 07:03 PM | #22 | |
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