Acceleration Shudder

[GSD Rides]

Our 2016 Model X P90DL is in shop right now for it's 3rd. Possibly 4th Half shaft depending on if other side is any good after a month of being replaced. They just seem unable to handle the massive instant torque. Right now it just seem they are running through current inventory before they start putting out some revised half shaft that can handle the power.

Also had them replaced on my 2016 Model S P90DL as they started doing it to on hard accelerate. They on the other hand last 20K before showing signs of it. Wasn't to bad either but I use my car at EV events to show prospective buyers. You can't have issue on a car your trying to convince someone to invest into.

It should get progressively worst with raising suspension too. If you want to get it to happen raise suspension level by level to see how bad yours is (Not saying go into High or very High as full accelerate on that level is not smart). Also shaft will get so bad to the point where they stop doing it. Yet just cause it not doing it anymore doesn't mean you are in the clear. Most likely the opposite.

 

[voltaren]

Issue is still present on recent builds. My MX is less than a month old and it shudders pretty badly - depending on how high SAS is set. On very low, no shudder. Anything higher has a shudder.

Service tech knew exactly what it was... it was an imbalance and engineering is "working on a fix." The SC replaced the front half shafts and the issue is exactly the same. SC even had the half shafts in stock. Took them a little over a day to fix. Service tech made sure to mention that it wasn't a safety issue which I found interesting.

 

[Gwgan]

Just crested 22k miles and am starting to feel the shudder in Low suspension height now. Been keeping service appraised of the progress. When/if there is a fix I hope to get it ASAP.

 

[qadaemon]

Well, it's been a few thousand miles now since I had all three shafts replaced, and it's starting to come back again. Seems to be about a 10k mile service interval before it starts to feel unsafe. Is this happening to all X's or just early ones, or what?

 

[X Fan]

^^^^^
Engineering problem looking for a fix.....I suspect Tesla knows why but hasn't figured out how to mitigate.

 

[OnlyDataNoBS]

^^^^^
Engineering problem looking for a fix.....I suspect Tesla knows why but hasn't figured out how to mitigate.

Any new news? The problem is just as annoying as it was last year.

 

[X Fan]

Haven't heard re: engineering but local ranger suggests that uneven tire tread is part of problem. Might be right since I've just installed new tires and "shudder" is significantly reduced......

 

[fillerup]

Is the problem I only on acceleration? I notice a shudder when changing lanes, soon after I pass the nubs on the road I feel a shudder on the steering which eventually goes away after a second.

 

[beths11]

Is the problem I only on acceleration? I notice a shudder when changing lanes, soon after I pass the nubs on the road I feel a shudder on the steering which eventually goes away after a second.

Are you using your blinker? If not that is a feature to let you know you have drifted out of your lane.

 

[Chrisizzle]

@FarmerDave

I didn't read the last 7 pages of posts, but I will say I had the same issue on a two month old car. They replaced some shaft (I can dig up the service report if required).

I find it still happens but to a much lesser degree. I also find it is more pronounced at higher suspension settings.

I am obviously keeping an eye on it an wouldn't be surprised to hear it get worse and need another replacement.

 

[OnlyDataNoBS]

Sounds like no progres to resolution in over a year then

@FarmerDave

I didn't read the last 7 pages of posts, but I will say I had the same issue on a two month old car. They replaced some shaft (I can dig up the service report if required).

I find it still happens but to a much lesser degree. I also find it is more pronounced at higher suspension settings.

I am obviously keeping an eye on it an wouldn't be surprised to hear it get worse and need another replacement.

 

[Milin1609]

Is the problem I only on acceleration? I notice a shudder when changing lanes, soon after I pass the nubs on the road I feel a shudder on the steering which eventually goes away after a second.

You could have Lane change warning ON..!!!!

 

[Tessa]

So glad this forum is explaining what I, too, have discovered with my S90d. Got it October 2016 and it currently has just short of 12000 miles. Started noticing it last winter and thought maybe wheels were slipping as they put sand on streets and I had put on snow tires. Just finished a 3,000+ road trip with regular tires and many fine roads. The shudder is real on hard acceleration...and worse when suspension is on higher settings. I'll bring this up with dealer soon and get it fixed. I hope Tesla will make a repair change that will last. Great car otherwise!!

 

[OnlyDataNoBS]

Model S?

So glad this forum is explaining what I, too, have discovered with my S90d. Got it October 2016 and it currently has just short of 12000 miles. Started noticing it last winter and thought maybe wheels were slipping as they put sand on streets and I had put on snow tires. Just finished a 3,000+ road trip with regular tires and many fine roads. The shudder is real on hard acceleration...and worse when suspension is on higher settings. I'll bring this up with dealer soon and get it fixed. I hope Tesla will make a repair change that will last. Great car otherwise!!

 

[OnlyDataNoBS]

Just drove a friend's Model S P85D and found that acceleration even under VERY HIGH mode is butter smooth. Makes me sad.

 

[GazUK67]

Has anyone heard of a permanent fix yet for this acceleration shudder issue?

 

[NovemberXray]

Yes, they had to replace both front axles on my Model X and now it's smooth again.

 

[sorka]

Has anyone heard of a permanent fix yet for this acceleration shudder issue?

Mine have been replaced twice. Last time was about 4K miles ago. The shudder is just starting to come back.....again. It is still very faint but it's coming back like before. In another 6K miles or so it will be back to full strength if it if continues to get worse.

Unfortunately, the second replacement was supposedly with a revised cv/half shaft part that is thicker than the previous part.

 

[GazUK67]

Sorka, how long ago was your last half shaft replacement? Maybe they have been updated again since your last visit to the service center?

 

[sorka]

Sorka, how long ago was your last half shaft replacement? Maybe they have been updated again since your last visit to the service center?

4K miles ago in early March.