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Why won't my MB ml350 brake lights work even after i install new bulbs?

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Did you check the fuse? Either the fuse may be out, or the brake light swith on the brake pedal may be out or need adjusting. You should have 12 volts at the brake switch.

Posted on Nov 18, 2011


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I replaced a cracked rear tail light with an after market new light. Now the brake light won't work but reverse lights and directional signal do. The bulbs are fine as I've moved them around and...

  • If there are no brake lights period the check the stop switch (brake light switch)
  • This is attached to the upper part of the brake pedal itself. Should be a little wire off of it. When that goes bad the brake lights will not work at all.
  • Please note that the fuse for "brakes" is ABS only and has no bearing on the brake lights themselves working.
Regards, Tony

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Do you have further information on the recall? Such as a recall number? My '06 ML350 is now having this same problem (right brake light out/left brake light out, substitue bulb on). My shop cannot find...

I never found any recall for it, so I got lot of cars same problem all the cars i found faulty light, common problem is burn contact, remove light and have a look inside contact plate you can see burn mark on it, clean the burn mark and put some led by soldering, if it's not work or no burn mark on bulb holder contact plate check wiring, if both way not found any fault possibly faulty rear SAM.

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