I was going to post a new thread "Thoughts on MCU1 Replacement" but figured I'd just put this here.
TMC posts about failing MCU1 memories had me wondering how much longer my 2015 Model S 85D had before succumbing to the problem. The flat screen stayed blank three weeks ago no matter how many attempted reboots, so I got my answer. I'm lucky to live two miles from a SC, so I simply drove right there instead of reporting via technological means. No appointment, but they took it in right away and eventually got it re-started. I don't know what they did but was told there was nothing I could have done myself.
The tech told me that he had ordered a replacement MCU so they would have one if/when I wanted it replaced. I receive emails twice a week: "MCU,MDLSX,NA PREMIUM,REMAN, Part #: 1098010-99-H, Ship Date: Pending." It's a little discouraging that they haven't received one in three weeks. I don't use the car that much in the summer in lieu of a motorcycle, but it failed a week later while I was driving. (First time was when I got into the car.) Doesn't affect driving per se, but I could not turn the A/C on. Strange that I could connect to it via the phone app, but when I attempted to turn A/C on through the app it returned a failure message. Eventually restored that time with reboots. In the garage I've noted a third failure but it also came back with a reboot then. So I do want to address the matter.
An MCU2 upgrade isn't currently available for pre-facelift models. Maybe it will or maybe it won't ever. So I've been debating with myself even prior to my failure if I wanted such a $2500 upgrade or not. If I did, perhaps it would make sense to try and hold off repair until it became available for my old(!) model. But with a change to MCU2 I would lose both the AM and FM radio I currently have -- plus $2500. I paid for the extended service agreement, so a simple MCU1 replacement will cost me $200.
My original intention in 2015 was to keep the car for the full 8 years of service and then buy a new Model S with many improvements and the promised FSD(haha). While the car is great (also bought a 2018 Model 3 with no problems) the numerous Tesla corporate deficiencies detailed on this forum have me wondering if I even want another Tesla. I suffer from "batterygate" and "chargegate," another reason against going for a $2500 MCU upgrade. I'm still hoping that the company will get it together in the 3 years remaining on my service agreement.
I am currently thinking that I'll go for the $200 MCU1 replacement whenever it shows up at the SC; that should last me 3 years (with a barely functional browser et. al.). But do any of you have other thoughts on this issue? I must say that the people at my SC seem to be pretty good. Glad that they built it a few years after I got the car.
