Has anyone found out what the source of the squeal was? My wifes '15 MCS developed the same squeal today with only 3,700 miles on it. Loud in first and second gear, not too bad in third and cant hear it from 4th to 6th gear.
This morning i drove her car in mid and sport mode and i drove it hard for 20 min and could not replicate the squeal...not a peep. Odd in my opinion. Has this happened to anyone else that the squeal went away?
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