I think you should check to see if the regulator/brush assembly is replaceable like the previous models. Sorry, but I haven't looked at mine yet. If it is, then pull the VR and see if the brushes are really short. Then you have your answer.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
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