maverik259

I'd imagine you'd have to buy an LED strip and put it under the seat in the back or something and tap either into the footweel where the car wiring is.

KhangT

I got the blue bulbs in and put them in. The bulbs i got for the sunroof were a little difficult to put in cause the bulb was a little longer than the original but they went in and work fine. Sorry for bad pics it was off the phone

05 MB Komp

Looks good.

dynomite05

Looks......Blue

KhangT

Yes im waiting for a camera that someone is selling then ill post some more much better pics

Gynecologist MD

I want pics of the license plate with LED's

Tishers

E= (I*R)

13.5 volts, 100 ohms = 135 mA

W= E*I

13.5 Volts * .135 A = 1.822 Watts (electrical/thermal)

You can get away with a 100 ohm 2 watt resistor

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If you could double the resistor value to ~200 ohms the resistor wattage could be cut in half to a 1 watt unit.

It all depends upon what the minimum current the bulb checking circuit needs to see to be happy.

Tishers

I ordered an interior set in all red. I will post pics if anyone is interested.

Does anyone know what is the bulb style for the under-door puddle lights? I would like to go with a high intensity white LED for the under-door lighting.

I also am changing out the marker lights and DRL bulbs with high intensity white (no blue stuff here). I have factory installed HID's so I do not need pretend blue lights outside the car.

I also ordered the license tag LED lights.

Question: Is there an additional, unused light holder in the front headlight assemblies? I see that there is a black rubber cap covering some spot where a bulb could go.

My factory foglights are futzed up. I bought a replacement set after I ran over an "alligator" (chunk of truck tire) that knocked the passenger side foglight out of the fixture where it was lost on the road.

BTW, if you ever lose your outdoor temperature sensor and the air conditioning will not hold temperature control very well it may have taken out that temperature sensor attached to the passenger side foglight (looks like a black pitot tube attached to the foglight fixture.

05 MB Komp

I won't have a pic of the plate lights till after the first of the month.

My car is at the body shop being fixed after a truck tire smashed the front of it.

I will post it when I get the car back.

jcnash

Sorry but Im going to have to call you on this!

P = VI
Power required to satisfy the computer = 5W
V = 12V (Standard car battery)
Therefore I = P/V = 5/12 = 0.4167amps

V = RI --> R = V/I = 12/0.4167 = 28.78 ohms.

Therefore resistor needed = 28.78 ohms or greater, 5W


Why would you want to use a 100ohm resistor that can only handle 2W, when the required wattage to satisfy the computer is 5W??

Also the 100ohms will draw way more current than say a 30ohm resistor thereby adding unnecessary load on the battery.

Where do you get 13.5V from?

Why do you assume the resistor to be 100ohms right at the start. the goal is to find the resistance required....not the Power.

Do you know how much heat a 200ohm 1W resistor would produce when loaded with a 12V load??? Especially considering it wouldnt even shut the compuer up because it will consume only upto 1 W. Also would reduce its life.

fookoo303

sounds like jcnash has the right idea. If the standard power draw is 5w then you need to do your analysis based on that.
I believe the 13.5V is the voltage from the alternator, which is probably the value that should be used.

jcnash

Not sure about this....

Based on 13.5V:

I = P/V = 5/13.5 = 0.3704 amps

R = V/I = 13.5/0.3704 = 36.44 ohms

However I use a 35ohm 5W resistor for my LED city lights and my LED license plate lights and they work perfectly...no flickering, no errors. Technically this shouldnt work if the threshold is 36.44 ohms (based on 13.5 V)

Im sure 36.44 ohms would work as well, but as I mentioned earlier, the higher the resistance, the more the current drain (and heat generated). So why go higher when 35 ohms will work just as well?

fookoo303

im sure the computer has a range of error, plus or minus .5W for example, before it illuminates a bulb out. The voltage of the vehicle isn't going to be exactly constant all the times so there has to be some room for fluctuation.

I would think the power rating is based off the alternator voltage because that's the voltage the vehicle is primarily under when the car is started.

That 36.44 ohm is going to be your total impedance. You would have to also include the resistance caused by the led's. So with your 35ohm resistor and the internal resistance of the led, along with the computer's range of error(my assumption) your setup works fine.

Keep in mind this is all speculation, I have not run any tests on this but it's just my thought. I agree with you that 100 ohms is pointless and if the values inputted were correct i would stick with 35-40ohm range.

jcnash

Agreed.

This makes sense.

Gynecologist MD

Just ordered my LED license plate lights, will post pics as soon as i get them in.

iJimpanzee

Just checking.

But the unlock lights that turn on are only the front and rear dome lights, right?

Anyone have info on black lights just for those lights?

jcnash

You can get blacklight LED's...but dont do it man. You will look like a tool driving around with glowing eyes and teeth.

iJimpanzee

I'm not going to drive around with them on
Was just thinking it'd be cool for the entrance and exits
I was only thinking of doing blacklights for the dome lights only.

So the map lights and any other light used for actual... well... use... I was planning on getting the ones posted here by the OP.

If anyone finds any, PM me the link/post it here please

Gynecologist MD

Unique idea, But I wouldn't do it. I agree with Jcnash ;P

iJimpanzee

Haha.. I'd still like to buy them to swap out just for Davis meets I guess =/
The group's getting big, and there's a huge variety of cars, but I'm the only benz

jcnash

You better have a stain-less interior!! lol.

Those lights can make even the slightest stain very very visible.

PM user advans...he did a blacklight interior when he had his coupe.

iJimpanzee

Haha, makes cleaning easier

For sure. Thanks for the info

Gynecologist MD

Just installed tonite!


iJDM said error free.. I got errors on my CANBUS..

Gynecologist MD

Nvm, went away

jcnash

Niice...

I might just ditch my resistors and buy these. Its hard to find LED's that are bright enough to illuminate the entire plate.

Gynecologist MD, can you post a link to the place you bought these from?