Mercedes Benz ML350 2007 Opening Rear SAM to access circuit board W164

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Added 2 years ago by vindheim

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None of my brake lights, backup lights, right turn signal were working... After checking the bulbs and contacts I determined my Rear SAM unit was likely the cause. I noticed water was leaking into the area and some of the foam was wet. I pulled the rear SAM out and gave it a good cleaning with some QD contact cleaner and a Q-Tip and fine toothbrush. I also sprayed all the male clips as there was some corrosion in them. Re-assembled and everything worked again! Now I have to find out where the leak is coming from... Either sunroof drain, back hatch seals or tail light seal... If this video helped you... give me a like! Thanks for watching!