The shudder problem: Current status (end of February 2020)

[MXLRplus]

My car is back at Tesla for the 'new' front axles. I'm averaging 11,000 miles on a set. I'm crossing my fingers because my warranty has 1,000 miles left.

EDIT - DOH!! I forgot I posted here recently.

 

[ElectricIAC]

My car is back at Tesla for the 'new' front axles. I'm averaging 11,000 miles on a set. I'm crossing my fingers because my warranty has 1,000 miles left.

EDIT - DOH!! I forgot I posted here recently.

You too eh?!

 

[mxnym]

Update version 2021.44.30.8 from a few weeks ago gave me a bug where Automatic Lowering was set to Never, but was lowering itself from Standard to Low by location (freeway). I did this for a few hundred miles and reported the bug a few times. Last week's update (version 2022.4.5) has fixed the bug. I'm about 10K miles since the May 2021 bulletin shafts (and clevis) and no shudder.

Thanks for reporting that bug has been fixed. I guess FSD beta testers will have to wait a bit longer, because 2021.44.30.21 still exhibits this behavior when automatic lowering is set to none or even 100 MPH.

 

[E90M3Jerez]

Can I ask a silly question here? Does the shudder eventually cause mechanical failure or is it just an annoying noise? I'm still new to this forum and if I asked this question in the Bimmfest forum, I'm sure I would be roasted. But, thankfully, I no longer concern myself with people's opinions of me.

 

[ElectricIAC]

Can I ask a silly question here? Does the shudder eventually cause mechanical failure or is it just an annoying noise? I'm still new to this forum and if I asked this question in the Bimmfest forum, I'm sure I would be roasted. But, thankfully, I no longer concern myself with people's opinions of me.

Well it certainly can’t be good for the motors.

 

[Aaron14902]

Can I ask a silly question here? Does the shudder eventually cause mechanical failure or is it just an annoying noise? I'm still new to this forum and if I asked this question in the Bimmfest forum, I'm sure I would be roasted. But, thankfully, I no longer concern myself with people's opinions of me.

I had an E90 325i stripper and yes, they'll crucify you over there. The half shaft ball races into the motor wear unevenly causing the shudder. The clevis mount is what helps alleviate motor vibration. I haven't read anything on mechanical failure. I have friends with a 2016 and 2017 that have just lived with the shudder with no mechanical failure.

 

[Aaron14902]

Well it certainly can’t be good for the motors.

Yes, I imagine if you floor it enough that it can damage the motors.

 

[E90M3Jerez]

I had an E90 325i stripper and yes, they'll crucify you over there. The half shaft ball races into the motor wear unevenly causing the shudder. The clevis mount is what helps alleviate motor vibration. I haven't read anything on mechanical failure. I have friends with a 2016 and 2017 that have just lived with the shudder with no mechanical failure.

Ok that makes sense!

 

[sorka]

Yes, I imagine if you floor it enough that it can damage the motors.

Metal fatigue on control arms and bushings.

Another front suspension control arm failure

Reversing out of a parking space we heard a very loud sound followed by a grinding/scraping noise from the front right. At first we thought we'd run over something, but there was nothing under or anywhere near the car. Moving the car forwards, the car felt like it first jacked up a bit on the...

teslamotorsclub.com

A lot of these folks had the shudder.

 

[E90M3Jerez]

This is one of the issues holding me back from buying a model X. However, I have been researching aftermarket control/lowering arms by Ntuitve. Currently out of stock until July. It's a bit worrisome to be thinking about a potential fix on a vehicle that I don't even own yet.

 

[Aaron14902]

This is one of the issues holding me back from buying a model X. However, I have been researching aftermarket control/lowering arms by Ntuitve. Currently out of stock until July. It's a bit worrisome to be thinking about a potential fix on a vehicle that I don't even own yet.

There are a couple of alternatives, but they don't have complete sets like N2itive:

Unplugged Performance Adjustable Rear Camber Arms - Tesla Model S & X

Tesla Model S and Tesla Model X owners can benifit from correcting the rear camber to improve tire wear and provide a wide range of adjustment for alignment.

unpluggedperformance.com

MACSBOOST Tesla S X Camber arm set - MACSBOOST.com

MACSBOOST Tesla model S and model X ultra high performance adjustable camber arms. Significantly improve tire life and reduce camber! for 2013-2020 Tesla model S and X

www.macsboost.com

 

[dmurphy]

This is one of the issues holding me back from buying a model X. However, I have been researching aftermarket control/lowering arms by Ntuitve. Currently out of stock until July. It's a bit worrisome to be thinking about a potential fix on a vehicle that I don't even own yet.

Annoying? Sure, a bit. I had mine replaced once at about 26k miles. Now crossing 40k miles this week and it hasn’t come back at all. If it does and I’m out of warranty, I’ll get the Ntuitive kit. But there’s no way I’d let it stop me from loving the X.

For example, I couldn’t do this without it …. (Current situation!)

 

[E90M3Jerez]

I am already factoring this "mod/repair" into the purchase price. Patiently waiting for one of my cars to sell and then will install home charger, and then hopefully get an X. It looks like used X's drop in price until they are sold on the website. I agree @dmurphy , I won't let one design flaw outweigh all of the other amazing qualities the X has.

 

[Dcam]

This is one of the issues holding me back from buying a model X. However, I have been researching aftermarket control/lowering arms by Ntuitve. Currently out of stock until July. It's a bit worrisome to be thinking about a potential fix on a vehicle that I don't even own yet.

Smart, without free supercharging I would not have tolerated maintaining ownership of my model X.

 

[Dzsink]

One last question for the experts: it sounds like this shudder problem belongs to model X but not model S - is this true?

Has anybody tried to ask for a model exchange as resolution to the issue?

Thanks for your advise.

I have this on our CPO 2017 MS100D. Just got this car 1,5 months ago.

 

[ngng]

I am already factoring this "mod/repair" into the purchase price. Patiently waiting for one of my cars to sell and then will install home charger, and then hopefully get an X. It looks like used X's drop in price until they are sold on the website. I agree @dmurphy , I won't let one design flaw outweigh all of the other amazing qualities the X has.

The X has plenty of other issues once you resolve that.

 

[E90M3Jerez]

The X has plenty of other issues once you resolve that.

I decided on a Y. Hopefully, less issues!

 

[DMDK82]

Just got a fix for shudder issue on my 2020 X LRPlus with 33,000kms on it.
Attached is a repair sheet with apparently new HalfShafts.

After drive home seems the shudder is pretty much gone. A slight consistent harmonic vibration “hum” which apparently sounds unsolvable persists at all speeds and driving modes.

 

[kskog]

Just got a fix for shudder issue on my 2020 X LRPlus with 33,000kms on it.
Attached is a repair sheet with apparently new HalfShafts.

After drive home seems the shudder is pretty much gone. A slight consistent harmonic vibration “hum” which apparently sounds unsolvable persists at all speeds and driving modes.

This resembles my experience as well. The «hum» is on acceleration and most noticable on good road conditions?

 

[DMDK82]

This resembles my experience as well. The «hum» is on acceleration and most noticable on good road conditions?

Yes, It feels like the consistent low level vibration is if the wheel balance is just slightly off. I balanced the wheels 2 times and aligned the car 3 times over with no resolution of the hum.
Im having more and more thoughts its the front motor, but Tesla would never admit it and just change the motor.
Its Definitely a Raven issue, I have loads of friends with pre-Raven X's and after they all go for their annual Shutter service their cars all ride silky smooth, even though they don't have Adaptive Air.

Oh and just to confirm the hum is gone when the car is coasting (not Regening) at the sweet-spot, so definitely has to do with front engine under throttle of any sort.