What is Tesla doing about eMMC failure on MCU1 units?
I have an out of warranty 2015 model S, that just got the black screen on the MCU, while getting the software update. I opened up a service call for next week, but I am hearing that Tesla replaces the whole MCU for $2,500. This is going to be overkill for a chip replacement. How can I get in touch with Tesla (and not the local shop) to discuss this outrages price, especially when I just paid $1,000 3 months ago for a leaking screen on the MCU?
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You can call 1 (877) 798-3752
I would contact service to see if they can help with the pricing since you just had it repaired.
Their email is usually [email protected]
And we also just heard (today) the price on the MCU2 Upgrade is now $1900 including labor.
Now, that I have given you good news, can you share with me a little about your car, please?
Mileage?
Battery size?
Car's Build date?
Thanks
Model: 70
built: Oct 2015
Personally I am very disappointed learning of this. The daughter board removal did not just appear out of nowhere. I mentioned this long ago on here as to why Tesla charges to replace the whole unit when they can just replace the board.
This repair was simple and cheap after they charged owners $4k at one point (now $2k for whole unit and dropping due to class action suit) and then turned around and refurbished it for dirt cheap. They then resold the broken unit as refurbished for an insane amount of profit margin.
I thought they said the service centers are not profit centers...
2014 S85, built 9/14, 121k miles, (was) running 2020.20.1. First MCU replaced under warranty 11/15.
It currently won't Supercharge, but will charge at home via 120V outlet if climate control is running. If I try a public L2 charger, it maintains L1 speeds (212V, predictably fluctuates between 3 - 7 amps). At home where the UMC is connected to the smart plug I can see the energy pull bounce between 600 - 1250 Watts. In other words, assuming I don't drive the car and keep the car charging with the climate on, I net even on SoC. But if I don't charge it I lose maybe 2 - 3% a day. I hope the battery will have enough charge to make it to the service center next week.
Cruise control and radar work, no ultrasonics. Autosteer will max at 45mph. Vehicle doesn't lock itself upon walk-away nor do handles auto-present when near.
I had a similar situation where my garage 30A plug maintained the heater loss, which was stuck on, but charge could not be added to the battery. So my SOC remained unchanged over 16 days.
When my screen failed in July the ac stayed on auto level 1 and when I started driving it ramped up.
I find them charging you half incredibly odd. The installation and recovery is 2700 for my upgrade, but did not refund me anything when they couldn't recover my data.
The quote and end price was exact and I didn't get the data.
Yes, I know that was all under warranty, but I am speaking to the notion that Tesla could have/should have done this card swap from the get go. Well, it is quite logical that the engineers in CA had to come up with one, a supply of replacement cards and two, create a repair procedure that could be done by the service centers.
The repair is very simple and the daughter cards would without a doubt be available. You can get any non-tech to remove that card. And the fact that it is a daughter card and not soldered directly to the mainboard tells me they knew if they would have had this issue in the future, the card can simple be replaced instead of the whole board.
Tesla knew they can charge what they want, because no one else had this equipment and must replace it to continue enjoying their tesla.
If not true, then why have the daughter card?
Tesla designed in the Nvidia board as a single part. It saved development time and engineering resources, back in 2010 when Tesla was tiny compared with other carmakers at the time.
It's not even clear that Nvida was willing to sell the CPU chip as a stand-alone part that could be installed on your own motherboard. So if you wanted to use that CPU part, you likely had to buy their CPU daughterboard. The CPU chip was quite advanced for the time - a quad-core design with special low-power modes ideal for vehicles where you had high-performance needs while driving, and low-performance needs when parked and the car is not in use, but still needs some processing.
Ok, likely more than you wanted to know :)
The daughterboard was/is not new tech, this tech has been in laptops and other systems for a very long time.
I care about this company as much as anyone else, but right is right and wrong is wrong.
I see this all the time in the industry. I've had parts discontinued that we were using in volume and had to scramble to get what remaining parts were available and then rush through a redesign. Sometimes you get 6 months warning, but not always. Maybe the production was problematic, or they shut down the chip's production process to go with a finer line width for newer parts.
The eMMC chip made by Hynix on the board was also discontinued about 3 years ago, but there are newer alternatives. I suspect part of the reason it was discontinued was the problems that started to show up.
Technology moves ahead at such a rapid pace. I'm sure it's one reason Tesla designed the MCU2. I expect in 5 years we'll see an MCU3, as MCU2 parts become obsolete and out of date.