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Brake Wear Light on/blinks

1040 2
2004 ML500, 36K miles.

Brake wear light cames on/blinks when cames to a full stop or full press down on the brake.

New Front/Rear Pad/rotors. Factory parts.
checked and fill brake fuild.

Did not replace brake wear sensor at the time of brake change. I did check that wear sensor has not been damage.

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CURRENT: 2011 SL550 FORMER: C300, ML350, CLK550 Cabriolet, C240, ML320, 300TD
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The wear sensors on the pads turn activate by completing a circuit to ground. Maybe there is one with some worn insulation on the wire that is contacting ground? You could check that by unplugging the sensor leads to see if it still happens. If it’s not the pad sensors, then it must be the fluid level sensor in the reservoir. Maybe it’s defective?
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