On 09/08/2018 09:38 PM, Peri Hartman via EV wrote:
Well, does anyone have actual numbers regarding failures of Teslas? Overall, they've been out long enough that "we" should know if there are reliability problems or not. On my part, I have not heard of any widespread Tesla failure. What reliability problems is C.S. referring to?
Anecdotal, but I know of quite of few Ss that have had their batteries replaced/repaired in warranty. On my ~130k mile 2013 S, the battery was recently changed. There was no real obvious issue but the Tesla service people said it should be changed. Range was still above 90% of original and I had not complained of range loss; I considered the loss reasonable. I would guess 30-50% of Tesla with more than 100k miles have had their batteries replaced. Probably all under warranty; I have heard of no one who had to buy a battery. Fact is, cost of replacement in generally unknown. It seems Tesla is not replacing with new batteries. In some cases they install a loaner battery while the faulty battery is being refurbished. In other cases they replace with a refurbished battery. I assume the refurbishment involves replacing a smallish number of bad cells.
Much in contrast to Nissan, the battery replacements are painless; as mentioned, I did not even know I had a battery problem but Tesla was eager to make it right. Nissan refuses to replace obviously bad batteries.
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