BMW OEM Plate Light LED's
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So lets see if I understand this:
I need a relay/resistor combo for each side (left and right).
Positive feed from car connects to 85 and 30 on the relay.
Ground connects to 86.
87 connects to positive on LED.
Where do I connect the ground from the LED?
And I connect the resistor to both positive and ground leads from the car?
I need a relay/resistor combo for each side (left and right).
Positive feed from car connects to 85 and 30 on the relay.
Ground connects to 86.
87 connects to positive on LED.
Where do I connect the ground from the LED?
And I connect the resistor to both positive and ground leads from the car?
Thread Starter
Contributors
Joined: Nov 2006
Posts: 2,903
Likes: 0
From: Los Angeles, CA
My Ride: 2007 E60 530i
Color: Jet Black/Black Anthracite
STEP | Sport | Premium | NAV | Logic 7
EXTERIOR:
M-Tech Kit | M5 Mirrors, Trunk Finisher | Jet Black Kidney Surrounds | Madico Charcool Tint 54%, 35%
LIGHTING:
Euro-Headlights | Euro-LCI Tail Lights | AiB V3.0 | Solaris Invisi-bulbs | OEM LED Plate Lights
PERFORMANCE:
Porterfield R4-S Brake Pads | K&N Air Filter
WHEELS & SUSPENSION:
Work VS-XX 20x9, 20x10 | Toyo T1R 245/30/20, Michelin Pilot Sport A/S 295/25/20 | KW V2 Coilovers | Rogue Engineering 15mm Spacers
Originally Posted by my530i' post='506870' date='Dec 14 2007, 02:14 PM
Connect Positive wire of existing license plate light to pin 85.
And do I connect the resistor to both positive and ground leads from the car? I don't understand where the resistor goes based on your diagram.
Does Fry's Electronics sell relays? Where can I buy them from?
Thread Starter
Contributors
Joined: Nov 2006
Posts: 2,903
Likes: 0
From: Los Angeles, CA
My Ride: 2007 E60 530i
Color: Jet Black/Black Anthracite
STEP | Sport | Premium | NAV | Logic 7
EXTERIOR:
M-Tech Kit | M5 Mirrors, Trunk Finisher | Jet Black Kidney Surrounds | Madico Charcool Tint 54%, 35%
LIGHTING:
Euro-Headlights | Euro-LCI Tail Lights | AiB V3.0 | Solaris Invisi-bulbs | OEM LED Plate Lights
PERFORMANCE:
Porterfield R4-S Brake Pads | K&N Air Filter
WHEELS & SUSPENSION:
Work VS-XX 20x9, 20x10 | Toyo T1R 245/30/20, Michelin Pilot Sport A/S 295/25/20 | KW V2 Coilovers | Rogue Engineering 15mm Spacers
Originally Posted by coolguy' post='506874' date='Dec 14 2007, 02:31 PM
So what exactly are you gaining from this mod compared to just buying LEDs and replaced them in existing holder?
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From: SJC/CA/US
Thread Starter
Contributors
Joined: Nov 2006
Posts: 2,903
Likes: 0
From: Los Angeles, CA
My Ride: 2007 E60 530i
Color: Jet Black/Black Anthracite
STEP | Sport | Premium | NAV | Logic 7
EXTERIOR:
M-Tech Kit | M5 Mirrors, Trunk Finisher | Jet Black Kidney Surrounds | Madico Charcool Tint 54%, 35%
LIGHTING:
Euro-Headlights | Euro-LCI Tail Lights | AiB V3.0 | Solaris Invisi-bulbs | OEM LED Plate Lights
PERFORMANCE:
Porterfield R4-S Brake Pads | K&N Air Filter
WHEELS & SUSPENSION:
Work VS-XX 20x9, 20x10 | Toyo T1R 245/30/20, Michelin Pilot Sport A/S 295/25/20 | KW V2 Coilovers | Rogue Engineering 15mm Spacers
Is this the same thing?
I'm gonna stop by Fry's on my way home. What resistors should I pick up? I can always return the ones I don't use. I just don't want to have to go back out again. Let me know!
I'm gonna stop by Fry's on my way home. What resistors should I pick up? I can always return the ones I don't use. I just don't want to have to go back out again. Let me know!
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Joined: Aug 2004
Posts: 4,979
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From: SJC/CA/US
OK. I just replaced current festoon with LED one along with 25W/30-Ohm resistor and it works perfectly fine.
The higher ohmage, the cooler the resistor will be, but if it's too high, little current will be drawn from LCM which does trigger warning.
Here is the 25W/30-Ohm power resistor.
The pic you have for relay is correct.
The higher ohmage, the cooler the resistor will be, but if it's too high, little current will be drawn from LCM which does trigger warning.
Here is the 25W/30-Ohm power resistor.
The pic you have for relay is correct.
Thread Starter
Contributors
Joined: Nov 2006
Posts: 2,903
Likes: 0
From: Los Angeles, CA
My Ride: 2007 E60 530i
Color: Jet Black/Black Anthracite
STEP | Sport | Premium | NAV | Logic 7
EXTERIOR:
M-Tech Kit | M5 Mirrors, Trunk Finisher | Jet Black Kidney Surrounds | Madico Charcool Tint 54%, 35%
LIGHTING:
Euro-Headlights | Euro-LCI Tail Lights | AiB V3.0 | Solaris Invisi-bulbs | OEM LED Plate Lights
PERFORMANCE:
Porterfield R4-S Brake Pads | K&N Air Filter
WHEELS & SUSPENSION:
Work VS-XX 20x9, 20x10 | Toyo T1R 245/30/20, Michelin Pilot Sport A/S 295/25/20 | KW V2 Coilovers | Rogue Engineering 15mm Spacers
Thanks for the update Fred. I picked up a handful of different resistors from Fry's and luckily a 25W/30-Ohm resistor was one out of the bunch I picked up! Hah. 
I'll test and post my results tomorrow.
I didn't get the relay because it's too big to fit through the hole for the plate light housing (about 1 cm too wide). Do they make smaller sized ones? I couldn't find any at Fry's at least.
I'll test and post my results tomorrow.I didn't get the relay because it's too big to fit through the hole for the plate light housing (about 1 cm too wide). Do they make smaller sized ones? I couldn't find any at Fry's at least.
