My M3 Roasting in 85 Degree Temps? Pacific NorthWET

[texas_star_TM3]

My car has routinely hit over 100 almost everyday for the past few weeks and that message has never popped up for me. I do not have cabin overheat protection because I think the car should be able to start when I get in, like any other car available on the market.

true. however - cabin overheat protection (fan only) has only very little vampire drain and keeps the car from getting extremely hot. while automotive components are tested well above 140F+ ... they do last longer with a lower failure rate if it's colder.

The fan pumping occasionally outside air in and a sunshield in the front window are two easy things you can do when parking in the summer outside.

 

[untilcomplete]

I definitely use a sun shade as well as tint and think that has a bigger affect on keeping the interior cool. Personally not a fan of using cabin overheat protection because I think the electronics should last in all temps the car will experience.

 

[northWETwa]

If your phone is paired to the car how can it be locked if you leave it in the car?

To clarify, per initial topic posting -
".....my personal phone is turned off and stowed away in the car. As such, I have no access to the onboard controls from the app while at work. I have to use my key card to lock/unlock the car when I come/go."

 

[camalaio]

I've also never heard of this warning before. I have the overheat protection set to Fan only.

Just think it's weird no one else has seen this before? I wonder which computer it thought was too hot.

 

[SageBrush]

what do you poor desert dwellers do?

Easy Peasy

Park facing S - SW
Put up a sunscreen
Crack open windows for ventilation
In the Wet NW, you may wish to took into rain guards

Cheers, from the always pleasant (in the car) NM

 

[mmonk3]

I live in Arizona. Arguably one of the hottest places you can be in the US with a bunch of windows on the vehicle and I’ve never once seen that message. Leave cabin overheat protection on and GET a reflective sunshade. Makes a big difference.

 

[smartypnz]

The S used to have a feature that would vent the roof (back when there was a sliding sunroof) and I believe also a 'crack windows' feature controllable via the App (one feature the 3 could use).

 

[untilcomplete]

The S used to have a feature that would vent the roof (back when there was a sliding sunroof) and I believe also a 'crack windows' feature controllable via the App (one feature the 3 could use).

All vehicles have a "vent" feature in the app.

 

[RScottyL]

Here is a sunshade comparison by Frugal Tesla Guy:

 

[smartypnz]

All vehicles have a "vent" feature in the app.

I stand corrected... however could not find in the 'S' side of the App.

 

[TyH2009]

It gets pretty hot here in St. Louis in the summer, nothing like the far south, but I have windshield shade I run while at work, and I have a removable roof glass shade I leave up from about June to September, it seems to help. I have decently dark tint, not ceramic, which seems to help too. I have the Cabin Overheat setting set to fan only and have never seen that message. I've seen inside temps hit 130's on the app.

 

[stevegu]

FWIW, here in Ohio my experience has been with setting the overheat protection to the "use the a/c" setting. I leave my car parked all day in the sun, ambient temperature in the low 90s. When I get in the temperature inside is usually about 86-88F, and none of the surfaces are too hot for comfort. This seems to use about 300 watts, about 3KWH/day, although some of this is recovered by not having the a/c run full blast when getting in the car to drive. To me this is very reasonable, not too wasteful or expensive (maybe $0.35/day) and very comfortable.

 

[texas_star_TM3]

It gets pretty hot here in St. Louis in the summer, nothing like the far south, but I have windshield shade I run while at work, and I have a removable roof glass shade I leave up from about June to September, it seems to help. I have decently dark tint, not ceramic, which seems to help too. I have the Cabin Overheat setting set to fan only and have never seen that message. I've seen inside temps hit 130's on the app.

I'm seeing the same interior temps with "fan only" bouncing between 110F to 128F in Texas. No tint, no roof glass shade .... but a reflective sunshield in the windshield....

when you are parked for 6hrs in the sun ... the car will heat up regardless if tinted or sunshield in roof or not... only difference might be the temp of your seats

 

[texas_star_TM3]

FWIW, here in Ohio my experience has been with setting the overheat protection to the "use the a/c" setting. I leave my car parked all day in the sun, ambient temperature in the low 90s. When I get in the temperature inside is usually about 86-88F, and none of the surfaces are too hot for comfort. This seems to use about 300 watts, about 3KWH/day, although some of this is recovered by not having the a/c run full blast when getting in the car to drive. To me this is very reasonable, not too wasteful or expensive (maybe $0.35/day) and very comfortable.

any issues with "moldy smell" from the Ac vents?

having the AC run most of the day when parked will keep the coils moist and never really let them dry off

 

[stevegu]

any issues with "moldy smell" from the Ac vents?

having the AC run most of the day when parked will keep the coils moist and never really let them dry off

None so far, about 3-4 weeks of doing this. I am guessing that the a/c actually only runs maybe half the time, cools the cabin to the low 80s then is off until it hits somewhere in the 90s (just guessing by the range of temperatures when I enter the car)