-
Want to remove ads? Register an account and login to see fewer ads, and become a Supporting Member to remove almost all ads.
Death of a center screen / touch screen after warranty
- Thread starter measton
- Start date
-
- Tags
- Model S User Interface
tinm
2020 Model S LR+ Owner
This is why I (reluctantly, grouchily, grudgingly) bought the $4K ESA.
Signed,
2013 S85 owner with 55Kmi
Signed,
2013 S85 owner with 55Kmi
Maybe a bit of an exaggeration. Probably closer to 3K CAD on pressurized Cessna twin. I'm still bitter.
jelloslug
Active Member
Granted, this not not ideal for many people, but there are at least two people that I know of that could replace the CID with a used one and code it properly to work with your car. The independent Tesla mechanic will happen even if Tesla will not support them.
jelloslug
Active Member
Like others have said, Toyota did the same thing with the screen in the '04 and '05 Prius for almost the same amount of money so don't just label it as a Tesla thing.
jelloslug
Active Member
jelloslug
Active Member
Absolutely yes. My father was an A&P so I got to see the outragious prices for even the most mundane parts
jelloslug
Active Member
When I was just a little jellocup, I spent many an afternoon destroying used parts that could not be rebuilt because the doctors and lawyers would dumpster dive to take parts to fix their 172...
ColBatGuano
Member
Not to interrupt but maybe these links will help: http://www.qaa.com/products/aircraft-alternators/cessna-alternators
http://www.qualityaircraftaccessories.com/products/aircraft-starter-generators
Aircraft parts = expensive
Aircraft part failure = very very bad, you hope the phrase "could have been worse" is used to describe the result.
http://www.qualityaircraftaccessories.com/products/aircraft-starter-generators
Aircraft parts = expensive
Aircraft part failure = very very bad, you hope the phrase "could have been worse" is used to describe the result.
Sorry to hear about this, Measton. I have a stack of dead MCU's (Multimedia Control Units) accumulating in my lab. All but one has a failure of the eMMC flash drive used on the Tegra module. This is what holds the Linux operating system the CID (Center Information Display) uses for display functions on the 17" screen. The MCU also contains some other stuff, one is the gateway which is a separate computer (doesn't run Linux or depend on the eMMC flash). The gateway is critical to making the car drive, but the CID is not. Your car will usually still continue to drive with a black screen.
The reason the eMMC is failing is because they use it for continuous logging. Because it's unlike a normal hard drive, it has a limit on how many times it can be written to, and the vast logging data quickly pushes this over the limit. These Linux log files are not needed for functioning of the car, and in fact on all salvage cars I support, one of the first things I do is disable it. The car logging functions possibly needed for service diagnosis are unaffected, as these are logged onto a 4G SD card that happens to also be easily replaceable.
Lately Tesla has toned down the logging somewhat, but it's still way more than I would consider with eMMC flash.
The eMMC flash chip is soldered in and not easily replaceable, but I'm working on a repair procedure for this. It's cost is under 10 dollars even in low quantity, so the bulk of the repair cost is going to be the labor to remove (and reinstall) the MCU from the car, which takes about an hour, and the more extensive and highly specialized work to remove the bad eMMC and install a new one. Then the data must be recovered from the old one and the operating system recreated on the new one. When the eMMC dies, there is usually some corruption so sometimes this can take awhile, or I'll just start "fresh" and the car will be all reset to factory conditions. Not easy, but I expect this will cost a small fraction of what Tesla is charging and I will also be able to offer a much better warranty.
Sadly, unless Tesla takes action now, probably all cars are going to succumb to this at some point.
I can't say how Tesla fixes these when the "refurb" them, but likely they just install a new Tegra module and toss the old one, as the rework like I'll be doing is difficult and specialized. I would replace the module too, except Tesla will not sell them.
The reason the eMMC is failing is because they use it for continuous logging. Because it's unlike a normal hard drive, it has a limit on how many times it can be written to, and the vast logging data quickly pushes this over the limit. These Linux log files are not needed for functioning of the car, and in fact on all salvage cars I support, one of the first things I do is disable it. The car logging functions possibly needed for service diagnosis are unaffected, as these are logged onto a 4G SD card that happens to also be easily replaceable.
Lately Tesla has toned down the logging somewhat, but it's still way more than I would consider with eMMC flash.
The eMMC flash chip is soldered in and not easily replaceable, but I'm working on a repair procedure for this. It's cost is under 10 dollars even in low quantity, so the bulk of the repair cost is going to be the labor to remove (and reinstall) the MCU from the car, which takes about an hour, and the more extensive and highly specialized work to remove the bad eMMC and install a new one. Then the data must be recovered from the old one and the operating system recreated on the new one. When the eMMC dies, there is usually some corruption so sometimes this can take awhile, or I'll just start "fresh" and the car will be all reset to factory conditions. Not easy, but I expect this will cost a small fraction of what Tesla is charging and I will also be able to offer a much better warranty.
Sadly, unless Tesla takes action now, probably all cars are going to succumb to this at some point.
I can't say how Tesla fixes these when the "refurb" them, but likely they just install a new Tegra module and toss the old one, as the rework like I'll be doing is difficult and specialized. I would replace the module too, except Tesla will not sell them.
If I paid $25k for a car from a company that never said service isn't for profit I would not have cared.
SageBrush
REJECT Fascism
Yes, so far that stack of bad ones I have now have all been replaced by used stuff. Obviously a used one is sometimes not much better, and it could have a short life, but since I disable the logging, it helps the future longevity a lot.
jelloslug
Active Member
Well, I would certainly care if I were told that it would cost almost 20% of the new price of a car to replace a screen.
