It is separate. But the MCU is still displaying info from the FSD computer & feeding the FSD drive computer some amount of information. How much and how time critical the info is I do not know.
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I am pretty sure the cameras feed through the MCU (e.g. they are not directly connected to the AP computer). If MCU1 is too slow for Sentry to function properly, I have serious doubts that it can render information fast enough for the AP computer to make decisions. Of course, I could be completely wrong also
dbldwn02
Member
Either one works. Lawyer letter for a few hundred is probably most effective use of your time.
Try your best with service first. You never know.
On a somewhat related note, today I got a message on the behind the wheel screen to replace the low voltage battery. I used the app to schedule service. The service update from Tesla is that I will also get the eMMC replacement during a mobile service. Appointment is scheduled for Monday which is impressive.
I have consistently declined the eMMC replacement after reading some reports on this forum of damages that owners believe were caused by that service, b/c the dashboard needs to be taken apart.
EMMC replacement/screen bubbles
Exactly 30 days ago to the day, I brought my 2015 S in for eMMC replacement of the recalled part. Fine. Now, 30 days later, my touch screen has the infamous "bubbles." Okay. I get it. Everyone has trouble with the bubbles. And most, if not all, have had no recent work done behind the screen. But...
teslamotorsclub.com
Also a report of damaged wood trim pieces here:
eMMC replacement - how long did yours take?
Got an appointment two weeks ago for 1:15pm next Thursday to replace eMMC. Today a message from service says "The goal is to have it completed before 1:15 on [the following day]." WTF? They have the part and they scheduled two weeks out, yet they want me to drop off at 1:15 when, "Your...
teslamotorsclub.com
dark cloud
Active Member
Don't know which car you have, but is it affected by the airbag recall? Has it been done?
They have to take the dash apart to do this. Would be a good time to do both if not. If it has then there is proof your dash has already been taken apart and no damage is present.
Model S Safety Update | Tesla Support
Thanks for this info. Looks like the airbag was done under previous ownership, b/c the only open recall on my 2014 car is the eMMC. Are you saying that if the dash has already been opened up before, there's essentially no risk to letting them open it up again?
For me, it's really the trust factor given the high turnover of TSC techs. I have let Electrified Garage open up my dashboard for other repairs.
dark cloud
Active Member
Well, you never know who is going to wrench on your car when you bring it in to a large service business. Just take pictures before, and insist you are very picky and will be checking, then they will hopefully have the most careful techs do the work, and not the guy who just started the week before and has never done the procedure. I think you will be fine, worst case scenario you have a scratched trim and they will have to replace it if you have pictures to prove it wasn't there before.
I have taken mine apart several times, it really isn't that big of a deal to do it.
My car got an MCU2 upgrade from Tesla in August last year and it's malfunctioning already. They have a 2yr/25K mile warranty on it and mine has passed 25K in those 16 months, so they expect me to pay for a new one.
dbldwn02
Member
That's a bummer. I'm curious...Other than the high amount of miles, is your car subjected to any other extremes? (Heart, cold, shock, etc?)
I've avoided even dealer service for this reason for 20 years. Made my own newbie mistakes of course but seems to counterbalance some dealer's lack of care, newbie tech, and poor factory procedures as well so its a wash for me haha.
My last 3 Tesla service resulted in more damage by them.
Steering rack bolt tightening recall
Mobile tech came and performed recall which was badly designed. I think swapped the bolt and tightened over the same aluminum subframe bite point... parking lot steering popping occurred soon after. Diagnosed it, brought it to Tesla with frunk tub removed and pointed to them the problem and cause. They came back with estimate that went from $150 to $250 including $70 diag fee haha... Long time SC manager I know eventually waved the diag fee and cost me almost $200 for their fix to their recall (add a washer for new bite on aluminum, if I knew their "fix" would have done it myself)
eMMC recall
I brought car to Tesla a few months before formal eMMC recall when problem was quite clear and evidently proven by the community. SC parked my car in sun for 3 days and did nothing. MCU1 screen came back with first 5 bubbles showing. I park in garage at home and work so my original MCU1 screen surprisingly lasted like 5-6 years with no bubble. My 2013 is still on original door handles in rainy seattle if you can believe it hahaha. Eventually fixed my MCU1 screen bubble myself with high quality ebay used (prob MCU2 conversion left over?) for $100.
And god knows what level of experience was the person that rebuild my rebuilt drive unit which came with a whine on first day...
But for non DIYers, kind of stuck. Best options are usually great independents with a lot of care and practical solutions learned beyond factory. But Tesla has been pretty good at stunting this option as well
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dark cloud
Active Member
Random reboots - goes black and reboots. If you're driving you're losing essentials like wipers and blinkers, not particularly handy on a highway in bad weather. Not sure how they diagnosed this - if they even did... For all I know they could as well just seen that it had driven more than their "warranty" covers and opted for a quick sale. (No, I don't trust repair shops)
Can we expect FSD beta when we wake up???????
teslamotorsclub.com
FSD Beta for MCU1 cars
I'm not disagreeing. What has Tesla told you when you asked for the MCU update for FSD? "Telsa is building software specifically for FSD to run on MCU1 and will be available soon or pay $2000 now and you can have it faster" Colorado Springs Service Manager (Oct 15, 2021) Haha
teslamotorsclub.com
Can we expect FSD beta when we wake up???????
FSD Beta for MCU1 cars
I'm not disagreeing. What has Tesla told you when you asked for the MCU update for FSD? "Telsa is building software specifically for FSD to run on MCU1 and will be available soon or pay $2000 now and you can have it faster" Colorado Springs Service Manager (Oct 15, 2021) Haha
They go directly into the FSD computer. You can see the ports in this Autonomy Day presentation:I am pretty sure the cameras feed through the MCU (e.g. they are not directly connected to the AP computer). If MCU1 is too slow for Sentry to function properly, I have serious doubts that it can render information fast enough for the AP computer to make decisions. Of course, I could be completely wrong also
(You can reboot the MCU whilst driving and Autopilot won't miss a beat.)
Since when is MCU1 too slow for Sentry to function "properly"? What does Sentry not do with MCU1 that it should do? It seems to work on my MCU1, and I'm not fan of the MCU1, so not defending it. I just never heard this complaint before.
