Submitted by gaurav.tyagi on 27. August 2019
I have a mid-range M3 and started to notice loss of range when I hit ~7000 miles (now at 9000 miles). I have always charged to 85% state of charge since I got the car and never charged to 100% until recently once to see if it would help with calibrating the battery. At 85% charge, I used to get 224 miles and now I get ~212 miles. Approx. 5% degradation in only 7000 miles. I had submitted a ticket with Tesla Service. However, they came back suggesting there is nothing wrong with the battery and that the displayed range is not accurate representation of the actual degradation. They also recommending to discharge to 20% and charging back to 90% for a while. I have been following that routine for over 1500 miles now but there does not seem to be any improvement. In fact, for the first time I charged to 100% last week and only got to 245 miles at 100% charge, which is ~6.5% degradation. I would like to know if other mid-range owners are seeing similar loss in range?