LED load equalizer install
Thread Starter
MBWorld Fanatic!
Joined: Oct 2002
Posts: 7,737
Likes: 1
From: San Diego, Ca
2003 Citron Green C230KMT
LED load equalizer install
I did do a search of the forum, but am still unable to find out what color wires are required for the LED turn signals in the front and rear. I know one end of the load equalizer goes to brown for ground, and i hear that yellow is for the brake lights. is that correct? also what color are the wires for the front and rear turn signals. especially on the headlight housing it seems there are two sets of plugs going into it. i may be wrong it was kinda hard to see in the garage. any help would be much appreciated.
Administrator
Joined: Sep 2002
Posts: 15,769
Likes: 37
From: www.Traben-Trarbach.de
MPG+ ROLFCOPTER
Originally posted by CitronC230K_03
oh ok. one end goes on the positve lead to the bulb the other to ground right? do you know the color of the wires?
oh ok. one end goes on the positve lead to the bulb the other to ground right? do you know the color of the wires?
MBWorld Fanatic!
Joined: Nov 2001
Posts: 2,498
Likes: 3
From: Ashburn, VA
'19 GLC 300, '19 TM3SR+
Originally posted by amdeutsch
Yor resistor will need to be installed in series with the LED light instead of in parallel.
Yor resistor will need to be installed in series with the LED light instead of in parallel.
Trending Topics
Member
Joined: Oct 2002
Posts: 187
Likes: 0
From: SoCal
if the led bulb draws less current than the stock bulb, and the voltage remains constant, the led bulb would have to have a higher resistance... but, if the led bulb actually has a lower resistance than the stock bulb, that would mean the led bulb actually draws more current.
v = ir
if the led bulb draws less current than the stock bulb, the resistor would have to be connected in parallel to decrease the total resistance and maintain the same voltage. if the led bulb has a lower resistance than the stock bulb, then it would have to be in series.
v = ir
if the led bulb draws less current than the stock bulb, the resistor would have to be connected in parallel to decrease the total resistance and maintain the same voltage. if the led bulb has a lower resistance than the stock bulb, then it would have to be in series.
Last edited by potatobbq; Apr 18, 2004 at 06:12 AM.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Administrator
Joined: Sep 2002
Posts: 15,769
Likes: 37
From: www.Traben-Trarbach.de
MPG+ ROLFCOPTER
Most LEDs require a current limiting resistor unless it is built into the design. Plus there are also safety and failure conditions to consider. A LED is a diode; what happens if it fails open or short?
1) Resistor in series
a) LED fails short -> all current will be used up by the resistor
b) LED fails open -> no current draw
2) Resistor in parallel
a) LED fails short -> direct short to ground
b) LED fails open -> all current will be used up by the resistor
1) Resistor in series
a) LED fails short -> all current will be used up by the resistor
b) LED fails open -> no current draw
2) Resistor in parallel
a) LED fails short -> direct short to ground
b) LED fails open -> all current will be used up by the resistor
MBWorld Fanatic!
Joined: Nov 2001
Posts: 2,498
Likes: 3
From: Ashburn, VA
'19 GLC 300, '19 TM3SR+
Originally posted by CitronC230K_03
does anyone know the color of the wires for the front and rear turn signals and brakes?
does anyone know the color of the wires for the front and rear turn signals and brakes?
Last edited by vadim; Apr 18, 2004 at 07:29 PM.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2002
Posts: 7,737
Likes: 1
From: San Diego, Ca
2003 Citron Green C230KMT
Originally posted by vadim
You can always find the wire by using a multimeter. Connect one of the probes (negative or ground) to any grounded point on the car, then use a thin sewing needle paired with an alligator clip as the second probe. Use the needle to puncture the insulation to get through to the wire - this is not going to damage it if done carefully. Turn signal is easy - just turn on the emergency blinker and find the wire that has voltage pulses. For the brake sugnal, you will need someone to sit and press the pedal as you observe. Good luck!
You can always find the wire by using a multimeter. Connect one of the probes (negative or ground) to any grounded point on the car, then use a thin sewing needle paired with an alligator clip as the second probe. Use the needle to puncture the insulation to get through to the wire - this is not going to damage it if done carefully. Turn signal is easy - just turn on the emergency blinker and find the wire that has voltage pulses. For the brake sugnal, you will need someone to sit and press the pedal as you observe. Good luck!
MBWorld Fanatic!
Joined: May 2002
Posts: 2,916
Likes: 1
From: The blue white rock, third out.
2002 C230 Coupe(M111)
Mine are wired in Parallel. In the front turns, its a load equalizer, and on the city lights, its just a nother 4w bulb and socket scotch locked on.
Don't worry, the MB computer will cut the power entirely if you don't have enough draw.
Don't worry, the MB computer will cut the power entirely if you don't have enough draw.
