2016 Model S 90 - mileage 30K miles - got the same message of death "Car May Not Start" was in October. Made appointment on app - diagnosed as coolant heater failure, $1600.
Only had the car for about a month.
Love the car, but definitely took the wind out of my sails. Is this common? Don't know what else to expect?
My 2015 Model S battery coolant heater was replaced at about 65,000 miles, after more than 6 years. I assume it only failed a short time before that, but I do not know if they deteriorate over time or just fail abruptly. Your car's heater failure seems a bit early in the car's life.
As for what else to expect, that is hard to predict but there are many types of failures on the Model S, some of which are fairly common and some less so, same as with any car. You might find compilations of people's experience with older cars by doing some searches here,
Here is one example, but there have been many others:
My Model S 85D and Tesla life at 100K miles
I think a lot depends upon how the car was stored and how it was driven. For example, I have had 4 or 5 door handle failures. Some people report having fewer or even none at the same age and mileage. My car has always been stored outside, and it has not traveled very many miles per year (but apparently more than yours, which seems to have had lower than average miles per year). Some people have theorized that the door handles are more likely to fail if cars are stored outside and subjected to extreme temperatures. As you appear to be in Canada, that might apply. On the other hand, heat is definitely a killer, especially for electronics and some other materials, so there might be some failures that are less common in cold climates.
One thing to be realistic about is that the Model S is the first car that Tesla ever designed from the ground up, so they certainly made some newbie mistakes and some choices of materials and components that did not pan out so well. By the time they made yours, they had learned a lot and made many (likely hundreds) of changes in materials and components, but it is still not a perfect car and stuff does wear out with time.
I bought nothing but used cars my entire life until I bought my Model S, so I might have a more relaxed attitude about having to get stuff fixed than some people do. But I will admit that I am seriously thinking about what to do when my 8-year battery and motor warranty runs out in a few months. Meanwhile I am trying to enjoy the car and not worrying too much about what might break.
Good luck, and I hope you enjoy your Model S!