Model X

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Model X Broken Front Axles

I have a Model X long range that is a little over 1 year old with about 12,000 miles on the odometer. It developed the "dreaded" suspension shudder under acceleration. Tesla replaced both front axles and this seemed to help, however after about 600 miles of driving following the replacement I was just driving around town one evening and as I slowed down for a stop light there was a loud "thump" on the front right side followed by a very loud screeching/grinding noise. I pulled to the side of the road and the car shut down. I contacted Roadside Assistance. They had me reset the car and try to move it; however, it would barely budge and there was a loud grinding noise coming from the front when I stepped on the accelerator. Tesla sent a tow truck and towed the car to the Marietta, GA Service Center (about 120 miles from where I live). They serviced the car the next day and told me that one of the newly installed front axles had broken. Also, after they replaced that axle they took the car out for a test drive and the other newly installed front axle broke. So, they replaced that one too. When I picked-up the car the next day, I was told that when the axles were originally replaced they hadn't been seated properly and that now the problem should be solved. So, I returned home and the car seemed to be running fine with no vibration (shudder) when accelerating. Today I took the car out for a short drive and as I accelerated from a stoplight, I heard the same loud "thump" on the front right side followed by the same grinding noise. So I assume an axle has broken again. This time the car continued to be drivable and I was able to make it home. I've set-up another service appointment; however, since this problem has happened twice now in close succession I'm starting to wonder if there is some basic flaw in the drive train. Even if they repair it again, I won't feel I can trust the car for trips (i.e., I worry I'll get stranded somewhere far from home and possibly far from Tesla Service). I'm wondering if anyone else has had this problem and if they know what it took to fix it.


  • Strange, I've not heard of others in the forums had an axel actually break, let alone more than once. Something is clearly wrong, but I don't know what it may be. Service needs to figure it out, but it sounds like something else is really wrong.
  • Tesla is actively working on a MX front half shaft redesign, and I've had one replacement, have current active shudder (was just denied second replacement pending availability of the new version), but this is the first I've heard of breakage. Yikes.
  • Don’t hold your breath for a redesign and/or upgraded parts. My 2016 has already gone through 3 sets and until yesterday I thought the last set was working. The noise is back again at acceleration. Doesn’t appear that the “known problem” has yet been solved. Fortunately, I have never been stranded for that reason. Sorry to hear about yours. Hopefully, it was only an installation error that has now been corrected. First time I have heard of the front shudder actually deadlining the vehicle.
  • Here's an update on my broken axle problem. This time around they are replacing not only the front halfshafts, but also the front drive unit. The repair has been completed and I'll be picking-up the car tomorrow. I guess we'll see that happens. Hopefully the halfshafts won't break again. I'll update again as I know more.
  • Literally, this just happened today to my Model X. Luckily, I was just backing out of my driveway. Waiting for Roadside to tow my vehicle to a Tesla Service Center. Just scary, what if the family were in the car and we were on the highway. Will update...
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