POLL: vibration felt when slightly accelerating refresh Mode S Plaid or LR

[Zuikkis]

Here's Formula1 incar for you. Really unstable. They really don't know how to build cars. I wonder why they all just don't drive Bentleys, would be so much smoother.

 

[Milan Djabirov]

lol what’s that supposed to mean, if you’re comparing the MSP to a formula 1 I’ve got bad news for you - its actually not a great track car either for all the power it has.

 

[Milan Djabirov]

Just checked the vote results (not part of it as I don’t own an S and also don’t have says vibration in my X yet). Sad. “Glass smooth” with about 25% probability. And that’s definitely a statistically significant number of votes though there could be negative bias due to the thread topic.

 

[Milan Djabirov]

Ok, so aside from the “glass smooth” debate, which is a bit of a distraction from the topic, I decided it was time for me to do true road force balance check as I never thought my MXP was glass smooth and a Tesla tech riding with me for an unrelated test drive told me he thought my front passenger wheel was off or could be bent.

Indeed RF was measured at:

Left Front - 10
Right Front - 37
Left Rear - 20
Right Rear - 17

As you can see RF is too high and not in balance with LF. The balancing did not reveal a bent wheel though so the tire tech suspects “a front axle” issue.

Could this be the infamous half shaft showing signs of distress? Note that this isn’t like the vibrations others describe, it’s more like a feel of something not being quite smooth.

Also tire tech wrote:

“R/F axle boot torn and losing grease. Could contribute to vibrations”

What does this mean?

Will take these numbers for my next SC visit at Tesla in 2 weeks. Any recommendations on what to do to figure this out?

 

[sorka]

Ok, so aside from the “glass smooth” debate, which is a bit of a distraction from the topic, I decided it was time for me to do true road force balance check as I never thought my MXP was glass smooth and a Tesla tech riding with me for an unrelated test drive told me he thought my front passenger wheel was off or could be bent.

Indeed RF was measured at:

Left Front - 10
Right Front - 37
Left Rear - 20
Right Rear - 17

As you can see RF is too high and not in balance with LF. The balancing did not reveal a bent wheel though so the tire tech suspects “a front axle” issue.

Could this be the infamous half shaft showing signs of distress? Note that this isn’t like the vibrations others describe, it’s more like a feel of something not being quite smooth.

Also tire tech wrote:

“R/F axle boot torn and losing grease. Could contribute to vibrations”

What does this mean?

Will take these numbers for my next SC visit at Tesla in 2 weeks. Any recommendations on what to do to figure this out?

If the front right measured 37 off the car and on the balancer, then that alone will cause the issue.

 

[Milan Djabirov]

Yes but why would it measure so? Wonky tire?

I guess he is saying there are two separate issues - wonky wheel / tire and leaky half shaft boot.

He wrote “R/F axle boot torn and losing grease” - isn’t that a sign of failing half shaft? Axle boot is the end of it no?

Aside from asking Tesla to look at the half shaft, is my option to also replace the wheel/ tire? What’s the standard way to figure what’s off? Under 40 is considered acceptable road force but I don’t like the difference between left and right - it’s definitely felt.

 

[Milan Djabirov]

In talks to tirerack to replace the right front tire as part of warranty. Will see what happens with the leaky half shaft boot when I go the the SC appointment next week - service ticket number 10 since December.