No heat in -15c and colder temps (partially fixed with the HVAC update)

[shadowchan454]

My experience is almost exactly the same, good for about 20 mins on the highway, then barely above cool air coming out of the vents.

At one point, i had to pass a few vehicles at around -22c and not long after, i got the turtle and derate to 60km/h until the batteries warmed up

the lack of cabin heat is my one and only complaint that i bring up when i talk to people in person about the vehicle.

almost need a "winter front" for the underside where the battery is that you can take off, otherwise in the summer, we'll have overheating issues

Please please report this to transport Canada if you're Canadian. They closed the claim after the HVAC update thinking it was fixed. It's clearly not.

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[kdryden99]

-22c ambient temp.
Car at 100% .
Pre heated and departure time set.
Garage heated to 10c.
Half a km to highway, then 100kph for the next 40 mins.
Heat set to auto and 22.5.
Fine for about 10 mins.
Then I start getting a fog over the windshield as the humidity spikes and the vent temp drops.
Switch to max defrost and Ac on. ( Which doesn't actually do anything below zero degrees c. )
After that I either crack a window or wipe the windshield down.

This is a bloody joke.

I'm here monitoring vent temps with multi meters, and scan tools...
All while other members from Florida are telling me how to operate my HVAC.

From the scan tool data.. too much heat is lost by the battery bank. Heater is too small, battery is poorly insulated.

When I get to town, after another 15 mins... I get some heat back.

Keeping the front defrost on 1 or 2 will fix it, going above 4 doesn't do anything. I also used Rain-X fog prevent just as a precaution to see if it helps. Adding another battery, another heater these all sound great in theory but they add to the complexity, weight, battery consumption of the car. And yes, I wish we had the heated windshield they have in Europe. I am not sure why we got the short end of the stick on that one.

 

[Devbloggs]

Please please report this to transport Canada if you're Canadian. They closed the claim after the HVAC update thinking it was fixed. It's clearly not.

done and done, hopefully something comes of it

 

[shadowchan454]

done and done, hopefully something comes of it

Thank you!!

Anyone who has ANY heating issues. Even slight. Needs to supply that information to transport Canada. If they don't know they can't force Ford to fix their vehicles.

 

[Kennykustom]

I'm saying your driving experience in Montreal does not match mine in Manitoba.
Your daily commute does not match mine.

While your experience is different than mine, your suggestions will not work.

Running the defrost at 1/2 will not clear the windshield.
30c output vent temp will not defrost the windshield either.

Ford admits the HVAC performance is poor, but is working within their poor design.

Theres also people that say The car can be running at -45 and they can heat the whole car to t-shirts with the fan on one.
Awesome! Perfect! Let's see these vehicles. If it's working to design, that's one thing. But if everyone says that their cars are perfect then there's obviously something wrong with this fairly large selection of vehicles around me.

 

[kdryden99]

I preheat the car everyday, I've driven the car 53000kms, in 2 years i monthly drive the car to Ottawa and back same day, sometimes twice a month. Yes I get fog, yes it doesn't defrost fast which is why I modified the way I treat the car. I make sure to preheat all the time, remote start all the time and I never run the fan higher than 4 because all that does is bring cold air into the car and make things worse. Does that mean you have to plan before you leave? Yes. Does that mean if you're in an ice storm your defrost wont help? Yes. But with most gasoline cars the defrost wont help in an ice storm. While your case in Manitoba is different from mine I have already gone through all the elements with this car and I have experience with the car especially having had it for 2 winters, Montreal winters not Florida winters. The car does not generate enough heat. Even those clamoring for a heat pump at the beginning, the car's batteries and motor do not generate enough heat to scavenge to warm up the car. I hate to break it to you but this car might not be for you, and that ok. It's why I don't push EV's on everyone because it's not for everyone. You really have to analyze your specific use case and see if it fits your needs. If it doesn't, sell it. You might not want to hear it but it's the truth.

 

[Kennykustom]

I've put 26000km since I bought it in March.
Daily 120km round trip to work and back.
Preheated in the am.

You have not experienced -35 in this car.
I'll say... There is more heat in town, than on the highway.

I also have not experienced a large Increase in battery consumption.
Within 10 % of my September usage. ( 15c ambient)

Im saying there is something wrong.
In the past 2 weeks, I have learned of 6 others around me with the exact same issues. 3 being brand new on the lot.

 

[kdryden99]

I've put 26000km since I bought it in March.
Daily 120km round trip to work and back.
Preheated in the am.

You have not experienced -35 in this car.
I'll say... There is more heat in town, than on the highway.

I also have not experienced a large Increase in battery consumption.
Within 10 % of my September usage. ( 15c ambient)

Im saying there is something wrong.
In the past 2 weeks, I have learned of 6 others around me with the exact same issues. 3 being brand new on the lot.

LOL what are you talking about, it was here -40 just this past friday. If it's that bad then you might want to consider a different dealer if yours cant fix the issue.

 

[Kennykustom]

-40c Feb 3 in Montreal eh ?

 

[kdryden99]

-40c Feb 3 in Montreal eh ?

Ya windchill -40

 

[Kamuelaflyer]

Man did I miss the boat here. Do the euro cars really have heated windshields? I don’t recall seeing this. Cool.

Old video (there are far newer ones), but it gets the point across. These windshields are quite expensive too. Well worth it imo though.

 

[AKgrampy]

I live in Fairbanks Alaska and have been pleasantly surprised so far this winter. I will say all of my driving is around town but varies from 60 to 35 MPH for the most part. I have a metal roof which I am think may make quite a difference. I have tried running climate control on auto but it has always been disastrous for me so I just run manually. I have never had the windshield fog up and as soon as the side windows begin to fog up I just switch to defrost and, for me, it clears right up. I have never set the heat above 72 and have been fine but I should see how it feels if I set it a bit higher during defrost. For those of you that the heat does not work well for I hope something can be done but the reality is that if everything is working as it is supposed to then there is not much Ford can do for your car to get better heat. Maybe they can improve the heat in a next generation model but that will not help your case. It will be interesting to see if anything can be done for existing vehicles.

 

[silverelan]

I don't know if its been mentioned before but too many posts on this topic. You will not be able to hest the car with the fan at max speed. You should be lowering the fan speed to give a chance to the heater to wsrm up the air. By putting the fan full blast you are pulling in cold air from outside faster than the heater can warm it up. Lowering the fsn speed will actually heat up the car faster. Ive done this all the time and i have no issues. I live in canada where we had minus 30 Celsius Friday. With preconditioning i had no problem.

iirc, the MME was spec'd with a 5 kW PTC heater. If that's correct then maybe it's a bit underpowered.

 

[Mach-Lee]

iirc, the MME was spec'd with a 5 kW PTC heater. If that's correct then maybe it's a bit underpowered.

Yes, it's undersized for Canadian winters IMO. It's the same size as in a Nissan Leaf which is a lot smaller and don't have a glass roof. Mach-E should have been spec'd with a 6-7 kW cabin heater due to greater glass area, volume, and heat loss. 5 kW PTC is a common size in the EV industry, so it was probably chosen for cost or part availability rather than being sized to the vehicle demands. The design also needs a separate PTC heater for the battery that isn't shared with the cabin.

As stated before, if you have a glass roof the heater is only powerful enough to make the cabin about 40ºC warmer than outside, if you don't have a glass roof then the heater will perform better and the cabin will be 45ºC warmer than outside. The glass roof makes a significant difference in the heat levels.

If you want more heat, I've discovered that covering the glass roof with Reflectix radiant barrier will increase the cabin temps by 3-5ºC at -25ºC. It's equivalent to adding a 550W heater.

 

[Shayne]

Out of curiosity for those of you who live in sufficiently cold climates to experience this, does it make a difference if you are alone in the car versus if you have passengers?

In theory, each person in the car is sort of like a natural 'heater', wondering if it meaningfully makes a difference in what the coldest possible threshold is before the heater becomes ineffective if you have one passenger or multiple passengers versus being alone in the vehicle.

Alone. I guess if I get cold I could throw Koda (the husky) in.

You know what the silly thing is. With the notes from the tech help line that I saw they actually suggest having it on max defrost on hi fan speed.
Ford doesn't even know how to run their vehicles.

First time a tech on the phone did not know what they were talking about for you? I have avoid them with a passion. Finally have an ISP that does not try to make me reset my router to factory defaults because they crapped out my connection.

It has been mention here a few times. First by a guy in Alaska who is also not experiencing a whole lot of problems. Mine sits outside. I try to precondition. I use auto on one at 64F (18C) and if the windshield mist up a bit I hit defrost but only for as long as it takes. The shorter the time the better. Guess this is new tech and some learning required by Ford but also by us. No major problems with heat here after two complete winters as of February 5. All drives highway at least an hour at 110 Km/hr

You can not take more heat than the heater is supplying you as you just end up having a summer fan. Try to slow down fan speed and see if that helps. At least try to play with it a bit.

Ya windchill -40

My piece of tin feels that There are some from down in southern Ontario complaining? Think they are still in their running shoes? I was not dressed right and froze a total of 2 times last year. Outside in -20C for hours and I am cozy warm.

I was thinking we could learn to drive with our nose on the steering wheel if that gets cold

People can mitigate cold temperatures by setting a departure schedule in the app ? ?. Another too bad for us this winter. All most likely knew I was going to get my frunk button here eventually.

Fix the damn departure scheduling it has not been working all winter! At least acknowledge it! Hard to be supportive some times.

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