1999 MERCEDES BENZ ML430 BRAKE LIGHTS

  • Tiny
  • Pete Klumb
  • 1999 Mercedes Benz ML430

Electrical problem
1999 Mercedes Benz ML430 V8 All Wheel Drive Automatic 120000 miles

2 out the the three brake lights do no work, only the 3rd (center) light works. I have checked the bulbs and fuses and found no problem?
Can you help? Is it a wiring problem or what?
Thanks,
Pete Klumb

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Friday, July 17th, 2009 AT 5:34 PM

3 Replies

  • Tiny
  • bluelightnin6
  • Expert
  • 17,061 posts

Suspect faulty brake light switch, located on brake pedal arm below driver side dash

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Friday, July 17th, 2009 AT 5:36 PM
  • Tiny
  • Pete Klumb
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If the brake light switch is faulty (your answer) why does the center brake light work fine?

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Friday, July 17th, 2009 AT 6:45 PM
  • Tiny
  • bluelightnin6
  • Expert
  • 17,061 posts

Because the high mount stop lamp runs on a separate circuit. It is ran through a relay, the main brake lamps run through the switch.

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Friday, July 17th, 2009 AT 9:27 PM

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