Quote:
Originally Posted by javapro
So, I charged my car yesterday to 90% in my office parking garage and it showed the estimated range to be 304 miles (what I usually get this time of the year). I unplugged it and moved it to a different L2 charger on a lower level. At this point, the car wasn't charging as it reached the 90% charging target. It was still showing the 304 miles estimate range. When I came back to the car about an hour later, it started showing 258 miles of estimated range at the same 90% SoC! I increased the charging target to 95% just to see if charging would cause the estimate range to jump back to around 300 miles but it stayed at 258. Driving around didn't help either and the range started dropping in local street driving and went up a bit on the highway but it was still relative to the 258 miles of original estimate and no where close to 300 miles I would expect. Resetting the iDrive had no effect either.
I know that the estimated range is just an estimate. Also, I did notice that sometimes when I lock my car and come back to it the next day, this estimate drops by a 3-4 miles especially when it gets colder at night. But I've never seen the estimated range to drop by over 40 miles! Has anyone had this happen to their iX?
P. S. I requested a CarData report and it showed the same 103 kWh battery capacity as a month ago, so it doesn't look like it's a battery issue.
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A 40 mile drop in estimated range in a matter of minutes in a parking garage is NOT normal at all. The temp swing would have to be quite wild to result in a 40 mile range drop like that in such a short period of time. 73º to 65º won't do that.
What is your driving efficiency? Divide your estimated range by your driving efficiency in mi/kWh and you will see the approximate battery capacity the car is using to estimate your range. This may be a good way to determine if you have a problem with one or more battery modules if the calculated capacity comes in significantly below the 103 kWh figure.
One might expect a battery issue to trigger a warning alert, but as far as I'm aware, Teslas and other EVs that encounter pack issues resulting in reduced range do not necessarily throw errors.