TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC
Start a Discussionhttps://teslamotorsclub.com/tmc/tags/

Drive Unit Replacement Poll

Discussion in 'Model S: Driving Dynamics' started by nleggatt, Apr 11, 2014.

?

Drive Units Replaced

  1. 1 Units

    272 vote(s)
    79.8%
  2. 2 Units

    50 vote(s)
    14.7%
  3. 3 Units

    10 vote(s)
    2.9%
  4. 4 Units

    4 vote(s)
    1.2%
  5. 5+ Units

    5 vote(s)
    1.5%
  1. cwerdna

    cwerdna Active Member

    Joined:
    Jul 11, 2012
    Messages:
    1,215
    Location:
    SF Bay Area, CA
    • Informative x 1
  2. f-stop

    f-stop Member

    Joined:
    Jul 31, 2015
    Messages:
    862
    Location:
    Vancouver BC, Canada
    Yeah I thought that was an odd statement, just 12 posts earlier I reported a rear DU failure in my late 2015 70D. No noise before it failed, and flatbed required to get it to the Service Centre. But hopefully these failures ARE becoming more rare and I was just unlucky
     
  3. randompersonx

    randompersonx Member

    Joined:
    Oct 10, 2014
    Messages:
    501
    Location:
    Miami, FL
    A few months back, my December 2014 P85D had a rear DU become "noisy", and had the service center replace it. They were able to do the replacement in a single day as they had a spare on-site.

    Vehicle never stopped working, but the noise was louder than an ICE car would have been, and the noise was loudest at 70mph, quieting down at speeds higher and lower.

    Not sure if the issue has been 'fixed' after this point, but certainly it still existed in late 2014.
     
  4. MS16

    MS16 Member

    Joined:
    Jan 23, 2017
    Messages:
    330
    Location:
    Calif
    What month/year was yours produced?
     
  5. f-stop

    f-stop Member

    Joined:
    Jul 31, 2015
    Messages:
    862
    Location:
    Vancouver BC, Canada
    late Nov 2015 production
     
    • Informative x 2
  6. neroden

    neroden Happy Model S Owner

    Joined:
    Apr 25, 2011
    Messages:
    6,157
    Location:
    Ithaca, NY, USA
    Interesting. The contactor failure can actually cause the car to die completely (if the power contacts get sufficiently pitted). So I guess S85 owners just have to wait until it dies to get it replaced.

    Edit: I see other people have had their contactors replaced proactively. Mine haven't been and my car's early enough I'm pretty sure they should have been. I'm going to keep an ear out for the balloon squeal.

    Regarding the drivetrain, -Q revisions (for ordinary S cars) and -P revisions (for "performance" cars) seem to work right; if you have any earlier revision it will eventually need to get replaced, so try to break it before your warranty expires. They seem to have started using these revisions in late 2015, not clear exactly when.
     
  7. Ironforge

    Ironforge Member

    Joined:
    Feb 5, 2014
    Messages:
    16
    Location:
    Orange County, CA, USA
    I had my 2014 P85 rear DU replaced earlier this week due to "milling" sound. This new DU appears more powerful than the old one. The car feels quicker and accelerates more effortlessly. Are the specs for the newer performance rear DU better than the older versions? Or I'm just imagining things?
     
  8. XJmaxxG8

    XJmaxxG8 Member

    Joined:
    May 9, 2017
    Messages:
    6
    Location:
    Cleveland, OH
    My VIN #16,xxx S85 had the drive unit replaced during CPO reconditioning a year ago this month. That DU was replaced in September 2016 along with the battery heater due to isolation faults (0.1 kohms for the DU and 44 kohms for the battery heater).
    Those are the two I am aware of, although I suppose it could have had the DU replaced at some point in its first three years of existence.
     
    • Informative x 1
  9. Michael7S

    Michael7S New Member

    Joined:
    May 18, 2017
    Messages:
    1
    Location:
    Santa Cruz, California
    silverp85+ Same thing just happened to my 2013 P85. After installation of 1025598-00-P in April 2017, it feels about 20% weaker.

    Were you able to resolve?

    -Michael
     

Share This Page