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Drive Unit Replacement Frequency?

Discussion in 'Model S' started by TR5642, Sep 21, 2017.

Tags:
?

Have you had your drive unit replaced?

  1. Yes, under warranty

    47.2%
  2. No, not needed

    50.9%
  3. Yes, paid for it.

    1.9%
  1. TR5642

    TR5642 Member

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    I have read about many folks getting the drive unit replaced and now it has happened to me. It makes me wonder how common of a failure this really is? It is sounding really common which has me concerned for total lifetime situation. (Yes I know it's under a long warranty)

    Survey below for raw numbers. It would be interesting to provide details if you have had it replaced:

    Model: S
    Approx Miles/kms: 37,000 mi
    Trigger for replacement: Whine like gear noise on acceleration.
     
  2. Todd Burch

    Todd Burch Voltage makes me tingle.

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    Smithfield, VA
    When was your car built? Anecdotally, used to happen often but my impression is those issues have since been resolved. I've got 65,000 miles on my drivetrain not needing service.
     
  3. cwerdna

    cwerdna Active Member

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    There was this flawed poll: Drive Unit Replacement Poll.

    These are 2 of the most extreme I know of:
    Drive Unit Replacement Poll
    Drive Unit Replacement Poll

    There was 1 person in Europe (can't find the post) who was close to this.

    From Model S Not Ready For Commercial Use Prime Time. Can I afford to own this car?, and Model S Not Ready For Commercial Use Prime Time. Can I afford to own this car?, this company is on DU #5.

    Per Two Thirds of Early Model S Drivetrains May Fail By 60,000miles, early on, DU replacements were very common, mostly for noise and a small subset of those for total failure..

    The replacement for noise seems to have died down with the revision -Q units but I still sometimes see reports of DUs completely failing.
     
    • Informative x 1
  4. TR5642

    TR5642 Member

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    Good point. Mine was built at the end of 2014
     
  5. TR5642

    TR5642 Member

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    Built late 2014
     
  6. TR5642

    TR5642 Member

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    Any idea when the Rev Q units went into production? It appears my replacement is a rev Q but is also a refurb. I wonder if Q's have already cycled or if they are refurbed up to Q status?
     
  7. cwerdna

    cwerdna Active Member

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  8. kort677

    kort677 Banned

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    #8 kort677, Sep 22, 2017
    Last edited: Sep 22, 2017
    fwiw: my '14 model S85 I had 1 unit replaced and I traded the car in with about 18k miles on it.
    my current late '15 models 90d with about 24k miles I haven't had any issues to date with much of anything.
    IMHO the late '15 to earlier '16 model s seem to be a sweet spot for the car, models built, '15s through the first part of '16 seem to have little problems. many newer issues cropped up when the AP2 cars started to come online. YMMV
     
    • Informative x 1
    • Funny x 1
  9. gabeincal

    gabeincal Enjoying Napa life the electric way

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    My car was built Summer 2016, and after about 20k miles my DU started to click on throttle on/off at low speed. San Rafael SC replaced the DU, and it failed within 4 miles of the SC. Towed it back, had another DU put in. Once i received a car, put it in reverse and big clunking on throttle on/off. Waiting for another DU now. Pretty disappointing, considering how well they should understand DU's now.
     
    • Informative x 1
  10. Zorg

    Zorg Member

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    Location:
    Fremont, ca
    2014 S85 DU is being replaced at 43K miles.
     
  11. henderrj

    henderrj Member

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    Location:
    Graham, WA, United States
    Bought my late 2014 AP1 Model S third-party, and with the Drive Unit whine. Tesla immediately replaced it under warranty with what I believe was a rebuilt unit. It had a clunking sounds from the moment I got it. Some 50,000 miles later I was in the middle of Backcountry New Mexico when I got a warning something like car may not restart. Called them and drove by Salt Lake City. Although I never experienced a problem they said the Drive Unit needed replacing. The new one has been quiet and perfect for quite a while, about 20,000 miles.
     
  12. Chancellor32

    Chancellor32 Member

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    late 2014 60kw had mine replaced at 32,000 miles. started to have pretty bad whine when accelerating. funny thing is it still whines now on very slight regen at like 70-80mph.
     
  13. AustinP

    AustinP Member

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    Location:
    Belgium
    June ‘15 S85.
    DU replaced after about one year and 35k km/22k miles for miling noise. No discussion from SeC, under warranty for a Q revision DU.
    Lasted perfectly up to July this year at 125k km/78k miles until I experienced a reduced power issue that was diagnosed as a DU issue. New Q revision under warranty. Great service as usual.
     
  14. rays427

    rays427 Member

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    Location:
    Penn Valley, CA
    Purchased P85D December 2014. DU and both axles replaced at about 42,000 miles. Something actually broke and the car could not be driven. Seemed like something was jammed in the gears.
     
  15. David99

    David99 Active Member

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    Brea, Orange County
    Drive units used to have issues in the first production years. THey ironed out all the issues and they seem to work fine now. I had mine replaced every 15k miles and since I drive a lot I had a few replacements. Then I got the new revision and it's been working without issues ever since and I put more than 70k miles on it. It is a topic that keeps coming up because there were many that needed replacement in the first two years. The issues are all solved now.
     

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