For those who have had an MCU fail, what were some of the symptoms prior to the failure?
my charger door started acting up. Speech recognition went to crap.
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For those who have had an MCU fail, what were some of the symptoms prior to the failure?
MCU1 failure is an expensive nuisance to fix, to be sure, but I think it is a stretch to call it a safety issue, even with climate control and window defogging being unavailable.
I don't expect any help from NHTSA.
if not under warranty, I would report it to NTSB. Maybe tell Tesla too, and ask for a goodwill refurbed unit.My MCU1 failed yesterday and now I have no blinkers. I’d say that’s definitely a safety issue!
I dont have personal experience with failed MCU but from what I read is that when MCU fails, you lose blinkers clicking sound but the actual turn signals still actually work. Is that not accurate?My MCU1 failed yesterday and now I have no blinkers. I’d say that’s definitely a safety issue!
When my MCU was failing the sound stopped but the turn signals still actually worked. Not much else worked though even after multiple reboots- then I let it sit a few hours while I scheduled service. Then it suddenly worked again, but taking no chances i went ahead with the replacement MCU- my car was right at 6 years old when this occurred. No AP, or TACC. just a plain old 2014 S85. Service center ordered a refurb MCU since the car technically was down, They got it in just a few days, ( nationwide backlog of refurbs) Got it back after a week, new MCU works well.
Did they goodwill this or what was the charge? My blinkers are not working at all I have tested this having my wife check while I am in the car. Only the hazards work. Can’t wait for Tesla to tell me tomorrow it’s going to cost $2500 to replace with another MCU1.
Has anyone been able to get them to upgrade to MCU2? At least then I’d be fine with paying ...
Did they goodwill this or what was the charge? My blinkers are not working at all I have tested this having my wife check while I am in the car. Only the hazards work. Can’t wait for Tesla to tell me tomorrow it’s going to cost $2500 to replace with another MCU1.
Has anyone been able to get them to upgrade to MCU2? At least then I’d be fine with paying ...
Where is that site? My MCU1 failed two days ago.yes, go to the other forum, extensive list by poster akikiki...
My car is either it my garage (especially now since March) or it the garage at work. It is rarely out in the sun all day - maybe 10 days/yr max. And I live in Seattle - it is generally not that hot here overall to drive extreme interior temps when is is out in the sun.Curious if you have paid attention to the interior cabin temperature? I wonder if excessive solar heating is causing this yellowing of the LCD screen. I have measured temperatures as high as 143°F in the Florida Spring sun. This is with a test I was running with the Cabin Overheat protection switched off. I was testing battery drain due to Cabin overheat settings.
I believe if Tesla didn't have concerns over cabin heat they probably wouldn't have added that feature. I can't imagine what Arizona might be like, or Death Valley where outside temperatures get to 130°F.
FWIW- I have the glass roof board reflectors and windshield reflectors but my car cover works better. The Car cover keeps the solar heating below 100°F.
The warranty is for 1yr if you get it covered under initial warranty replacement (free). Mine "warranty'd" MCU failed after 14 months. I got to pay for the 3rd MCU myself!If you pay for it, 4 years.
The warranty is for 1yr.
My car is either it my garage (especially now since March) or it the garage at work. It is rarely out in the sun all day - maybe 10 days/yr max. And I live in Seattle - it is generally not that hot here overall to drive extreme interior temps when is is out in the sun.
These are just bad designs: the display and the chip. There are not automotive quality for durability or longevity - PERIOD.
It's a heat-related failure. My testing shows that it's mainly an MMC controller failure in the chip, as errors happen in all partitions in a failing chip, This can't primarily be worn out cells.
Chill the chip and you can often then read it. So it's a classic cheap electronics, heat-related failure.