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Need Legal Assistance with 2015 Model S

Larry2019

New Member
Mar 6, 2020
3
2
San Jose, CA
We've been having nothing put problems with our 2015 Model S P85D since Tesla replaced the MCU (it died like they all seem to do after 5 years). We've been in to the Tesla shop 7 times since the MCU replacement, always with something different. Two problems persist:

1. Tesla cut a hole in the side plan to look at or repair something. They claim the hole was already there and that they will not repair it.

2. Car random switches from 40a to 30a while charging OR EVEN WHILE DRIVING (you see it when you park and go to the charging tab, sometimes it just sets itself to 30a). They charge us a $100 diagnostic fee every time (even though they tell us to bring it back when it happens). They've looked at the logs of both cars and see that the car always works, and mine mostly fails. The service person said, "we can tell absolutely it is not the charger." Makes sense as it changes WHILE DRIVING. Meanwhile, they tell us to come in every time it happens, and then charge us $100 with the conclusion that it is due to a bad charger.

We're looking for legal assistance in either taking the car elsewhere and charging back to Tesla, or getting compensated for our time + reduced value of car due to this problems.
 

2101Guy

Active Member
Jan 6, 2020
2,303
3,399
USA
Whats a "hole in the side plan"?
For legal assistance, did you send in a letter to Tesla when you purchased it waiving arbitration? If not, from a legal aspect, I believe you would first have to request arbitration before filing a suit.
 

jdw

Member
Supporting Member
Jun 1, 2015
703
1,401
Vancouver
If the car switches from 40->30 while charging, it is usually due to voltage drop, indicating a problem for the circuit to provide the requested power. The charging rate is location aware and will potentially switch as you drive. It is also driver profile aware so if you set 40A when you are using your profile and you switch to "Easy Entry" or any other profile it may also switch to a different value.

It remembers the last charge rate at each location, so, if you set it to 40 and the circuit can't sustain 40A and it switches to 30A, it will remember 30A at that location until you successfully charge at 40A at that location. You can of course reset it to 40 at any time, but if it doesn't successfully charge at 40A, it will revert to 30A or less.
 
Last edited:

Kandiru

Active Member
Oct 20, 2014
1,302
502
USA
I figured, thanks for sharing, the MCU1 with the habitual small delays will continue to do just fine for me.
 

Akikiki

A'-Lo-HA ! y'all
Nov 26, 2012
6,527
4,882
Kaneohe, HI
I agree with jdw that some of these issues could be driver profile or car location settings. It cost nothing to do it, so I suggest you do a factory reset on the car and see if that helps.
 

Chaserr

Hyperactive Hyperdrive
Sep 5, 2017
2,666
6,523
Logan
I don't know what "a hole in the side plan" is but they take pictures before and after service and can show you pics if it there before they worked on it. If they are truthful.
 

r1200gs4ok

Active Member
Jul 17, 2019
1,414
508
Irvine
If the car switches from 40->30 while charging, it is usually due to voltage drop, indicating a problem for the circuit to provide the requested power. The charging rate is location aware and will potentially switch as you drive. It is also driver profile aware so if you set 40A when you are using your profile and you switch to "Easy Entry" or any other profile it may also switch to a different value.

It remembers the last charge rate at each location, so, if you set it to 40 and the circuit can't sustain 40A and it switches to 30A, it will remember 30A at that location until you successfully charge at 40A at that location. You can of course reset it to 40 at any time, but if it doesn't successfully charge at 40A, it will revert to 30A or less.
well my Nema 15-40 charger was doing the same thing...it would start at 40kW the drop to 30kW.....this cycle would continue from start to finish...Called Tesla and they replaced it with a hard wired charger....no problem since that was replaced and they even gave me $250 for install.....
 

brkaus

Well-Known Member
Jul 8, 2014
8,157
6,713
Austin, TX
Try factory default.

Can they check the wear on the EMC in the MCU? If its a refurb, perhaps they replaced it with a bad one. the replacement MCU should have a 4 year warranty.
 
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Alysashley79

Active Member
Oct 4, 2013
1,243
544
Seattle(ish) WA
Is this a new car or used car? if you bought it new from a legal standpoint you can’t lemon law it. If used maybe.

as a side note mine changes the amperage to depending on where it is. It knows in my husbands profile it’s going to always charge at 32a when it arrives at his office. If I drive to his office it’s set at 40. Turn easy entry off if you have it enabled and I’ll bet the issue resolves itself.
 

Akikiki

A'-Lo-HA ! y'all
Nov 26, 2012
6,527
4,882
Kaneohe, HI
@Alysashley79, are you sure of that? Don't you have it backwards? Lemon law applies to new cars. And I think it might apply to a used car if they car is still under its original manufacturer's warranty.
 

Alysashley79

Active Member
Oct 4, 2013
1,243
544
Seattle(ish) WA
Lemon laws are different by state and apply to new car sales. I don' know of any state that has 5 years to declare a lemon.

you have 30 months from original delivery to declare lemon law and request a buyback from a legal standpoint. There are a couple states in the country that have mods for used cars (which is why I said maybe)
 

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