What is MCU? I have a 2017 Model S with FSD. Tesla recently installed the new chip per the recall. Is the new chip the MSU?

[Burt G]

When my 2017 Model S was recalled for installation of the new chip, I was not told anything about an MSU. In reading the posts from this forum, I am seeing a great deal of discussion about MSU and its cost to have it installed. Did I get the MSU when Tesla installed the new chip? Since it was a recall, there was no charge.

 

[SilverGS]

When my 2017 Model S was recalled for installation of the new chip, I was not told anything about an MSU. In reading the posts from this forum, I am seeing a great deal of discussion about MSU and its cost to have it installed. Did I get the MSU when Tesla installed the new chip? Since it was a recall, there was no charge.

The acronym is MCU (Media Control Unit).

What Tesla did in your case is simply to replace the flash memory from 8 GB to a 64 GB version. Definitely not to MCU 2 from your current MCU 1 as there is a not very small cost to get that upgrade ($1500 I think).

 

[dbldwn02]

When my 2017 Model S was recalled for installation of the new chip, I was not told anything about an MSU. In reading the posts from this forum, I am seeing a great deal of discussion about MSU and its cost to have it installed. Did I get the MSU when Tesla installed the new chip? Since it was a recall, there was no charge.

MCU1 doesn't get replaced during the recall. It's $1500-2500 to upgrade to MCU2, depending on if you have FSD purchased and whether or not you want FM/XM radio.

 

[murphyS90D]

The recall replaces an 8 GB memory chip with a 64 GB memory chip.