Installed Catz HID on 99 E320
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Installed Catz HID on 99 E320
I just installed a set of Catz HIDs on my 99 E320. The lights are great and look amazing, but triggers the headlamp defected warning light. Does anyone know how I can fix this problem or whether or not there is a way to bypass this warning so that it does not show up?
Senior Member
Joined: Apr 2002
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From: Sacramento, CA
W204 C300 2010
The headlight warning is coming on because the resistive load of the HID ballast is much less than the H7 bulb. You can fool the sensor by inserting a parallel resistor where the ballast connects to the original wiring. I fooled my BMW fog light circuit with a 2.2K ohm resistor. It does not have to be large, but I would use at least a 1/2 watt size. You may have to go to a 1K ohm if the 2.2 does not work.
Rob Lee
Rob Lee
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So I can fool the computer by getting a resistor from Radio shack and putting that inbetween the original wire harness and the power wire that the HID kit uses to connect to it? How did you do it? Did you solder it on?
GT
GT
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Joined: Oct 2002
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From: Columbia, SC
E300
Originally posted by gtran888
So I can fool the computer by getting a resistor from Radio shack and putting that inbetween the original wire harness and the power wire that the HID kit uses to connect to it? How did you do it? Did you solder it on?
GT
So I can fool the computer by getting a resistor from Radio shack and putting that inbetween the original wire harness and the power wire that the HID kit uses to connect to it? How did you do it? Did you solder it on?
GT
Senior Member
Joined: Apr 2002
Posts: 405
Likes: 12
From: Sacramento, CA
W204 C300 2010
gtran888 - Given the start up current of the ballast is in the 25amp range, you may want to get a higher wattage resistor. A sand or wire wound type will work.
Attached is a diagram of the connection circuit.
Hope this helps. You can add a resistor in parallel if you have problems with LED turn indicator bulbs too.
Attached is a diagram of the connection circuit.
Hope this helps. You can add a resistor in parallel if you have problems with LED turn indicator bulbs too.
