Do all 2014 Model S 85 come with the 8 year battery/drive unit warranty?

Do all 2014 Model S 85 come with the 8 year battery/drive unit warranty?

Hello all,

Still debating between a brand new Model 3 and a used Model S.


Found this used 2014 Model S 85 at a nearby dealer. I read it on a few forums that 2014 Model S comes with an 8 year battery and drive unit warranty.

But just want to be completely sure.

Regardless of the production month, all of the model s 85s have 8 year warranty on battery and drive unit?
This is not something that the first owner had to purchase additionally?
It will also transfer to the new owner correct?


sbeggs | 2019年2月14日


carlk | 2019年2月14日

This warranty applies to all Model S at no additional cost.

aviator172rr | 2019年2月14日

Thanks guys

Bighorn | 2019年2月14日

Some 60s came with mileage phase outs—120k as I recall.

stevenmaifert | 2019年2月14日

The 40s came with 8 years, 100K miles. The 60s came with 8 years, 125K miles. Ref:

jordanrichard | 2019年2月14日

What dealer is this car at? BTW, there is no mileage limit on that 8 yr warranty. 8yrs or infinite miles, which ever comes first.......

eggbert747 | 2019年2月14日

But, be aware, if you are not buying a Certified Pre-owned from Tesla directly, you most likely will not have the 4 year/50K miles warranty. I hope the car has had a new motor with the ceramic bearings, or it will cost you, typically between 30-50K, the older bearings will fail.

Bighorn | 2019年2月14日

$30-50k for a drive unit?! Complete BS.

Bill_75D | 2019年2月15日

30-50K miles, not $$$

Bighorn | 2019年2月15日

Ok, got it. I’d say between 18k and 30k miles in that case.

Bighorn | 2019年2月15日

You must admit that the sentence was horribly ambiguous and pointing toward cost. Comma karma.

carlk | 2019年2月15日

Anyone remembers when was the ceramic bearing first implemented?

SoCal Buzz | 2019年2月15日

@carlk, my motor was updated in Jan 2016 with new bearings. My best recollection is that I experienced the issue about 4 months after starting to hear about replacements on the Forum. But obviously Tesla probably addressed the problem with new deliveries before that.

jordanrichard | 2019年2月15日

I think this is bit more than just semantics, but the original bearings did not "fail" as in physically fell apart. Due to microscopic etching from arcing, it caused the bearings to develop a humming/milling noise. Tesla certainly could tell new customers that there is nothing to worry about because at that point Tesla was only about 3 years into making cars with practically no track record for reliability. So they right so, came up with a better design using ceramic bearings to negate the issue and replace DUs when customer's citing the issue with their cars.

dgibson2 | 2019年2月15日

They replaced the drive unit on my 2013 S60 last summer. I was hearing the milling/grinding noise at slow speed. You think my new DU has the ceramic bearings?

Bighorn | 2019年2月15日