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Recommended Posts

Posted
I like the look of LEDs. Not sure if LED tail lights exist for the 996.

Complete LED bulb set in my 2001 C4 from V-leds, velocity leds on ebay.com, even markers.

Posted

Hey wwest - when I put the led bulbs in for my brake lights, my center led brake light no longer worked. Switched it with my stock one and it works. Is this a resistance issue I've heard about with turn signal bulbs?

.

I like the look of LEDs. Not sure if LED tail lights exist for the 996.

Complete LED bulb set in my 2001 C4 from V-leds, velocity leds on ebay.com, even markers.

Posted
Hey wwest - when I put the led bulbs in for my brake lights, my center led brake light no longer worked. Switched it with my stock one and it works. Is this a resistance issue I've heard about with turn signal bulbs?

.

I like the look of LEDs. Not sure if LED tail lights exist for the 996.

Complete LED bulb set in my 2001 C4 from V-leds, velocity leds on ebay.com, even markers.

No, I had no problem as you describe.

I originally used individual LED lamps in the factory center mount brake light assembly and discovered that the cruise control did not work because LEDs always drop 0.5 to 1.2 volts. I added a small "dip" relay and a 50 watt 12 volt halogen bulb. The bulb is in the circuit, dropping the brake circuit "keep-alive" voltage to virtually zero, only when the relay is not energized. When the factory LED high mount became available I simply snapped it in.

The turn signal flasher relay is yet another story.

It has a solid state controller built in. A current sensing link is used to detect a turn signal bulb failure so you get the FAST flash you would expect. You have to open the flasher relay assembly and replace the current sensing link with a low ohm resistor of the correct valve.

The only difference I can think of is that I have 4 LED brake lamps that come on with braking. I added the "backup" light fixtures, both sides, to the brake circuit to give better "notice" that I am on the brakes.

Posted
Hey wwest - when I put the led bulbs in for my brake lights, my center led brake light no longer worked. Switched it with my stock one and it works. Is this a resistance issue I've heard about with turn signal bulbs?

Hi Glenn, did the brake light LEDs at least work? Maybe you just have a polarity issue. Other than normal bulbs LEDs need the correct polarity to work right.

Thorsten

Posted
Hey wwest - when I put the led bulbs in for my brake lights, my center led brake light no longer worked. Switched it with my stock one and it works. Is this a resistance issue I've heard about with turn signal bulbs?

Hi Glenn, did the brake light LEDs at least work? Maybe you just have a polarity issue. Other than normal bulbs LEDs need the correct polarity to work right.

Thorsten

Yes - the LED brake lights worked fine - the center LED just wouldn't light. What I haven't done is switched out the LED brake lights to make sure the LED centre is still operating. May try that this weekend.

Tanks for your input.

Glenn

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