co2112 said:
My understanding of the Tesla motors is they were rated for 200k miles but were only lasting 100k+ real world miles. They changed the design and now are supposed to last 1 million miles.
Source?
As https://teslamotorsclub.com/tmc/threads/low-speed-high-pitch-whine.47379/page-2#post-1088221 put it ""Tesla's goal of a 1 million mile powertrain", well they are 20k down, and 980k of reliability left to go... "
michael said:
I am so astonished that a car company with Tesla's reputation can't make a dependable motor. Are models S similarly afflicted? Or is it just the motor used in the Rav?
Yes. They've been suffering from DU developing noise for a long time. Complete failures don't happen that often but they still seem to, as well.
These guys were past 7 DU replacements. Not sure of their latest status.
https://teslamotorsclub.com/tmc/threads/drive-unit-replacement-poll.29834/page-27#post-1603011
https://teslamotorsclub.com/tmc/threads/drive-unit-replacement-poll.29834/page-27#post-1653580
I have tons of pointers to folks who've had DUs replaced, some multiple times besides the above. You can find more just by Googling for stuff like
site:teslamotorsclub.com du replaced
site:teslamotorsclub.com "drive unit" replaced
https://teslamotorsclub.com/tmc/threads/tesla-model-s-survey-by-plug-in-america.16813/page-2#post-1272883 has some PIA DU survey raw numbers from Dec 2015. In contrast, look at average problem rates for each system in the table at http://www.consumerreports.org/cro/2012/04/reliability-histories/index.htm for a 12-month window of time for each model year (shorter for the latest model year).
Examples of recent failures involving the DU:
https://teslamotorsclub.com/tmc/threads/model-s-technical-mechanical-issues.10398/page-142#post-1811020
https://teslamotorsclub.com/tmc/threads/new-p100d-model-s-failed.78593/page-3#post-1774189
My guess is that given results like https://teslamotorsclub.com/tmc/threads/consumer-reports-model-x-least-reliable-car.79793/page-2#post-1798860, the repair records at https://www.edmunds.com/tesla/model-s/2013/long-term-road-test/wrap-up.html and the notoriously bad front and rear doors Model X (developing problems within the first few weeks of ownership), they're not doing sufficient long-term reliability and durability testing of their parts (e.g. https://teslamotorsclub.com/tmc/threads/automotive-reliability-and-durability-testing.56176/) or their manufacturing or that of their suppliers isn't able to consistently produce parts that can pass such tests, assuming they have passed similar tests.