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· Registered User
ID.4 AWD Pro
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Discussion Starter · #1 ·
So far, September and October have been quite warm in NJ with our AWD Pro using mainly A/C this entire period of ownership... I suppose this will EVENTUALLY have to change and heating season (cold weather) will finally come upon us. With that - I've been reading that using heat in the winter months can drastically reduce range (on our non heat pump models). The car basically goes from an 80% to 40% charge almost every day (Mon - Thurs). Does anyone have any tips for the best way to handle heating the ID.4 in the winter? (Obviously lowering temperature is one of them - but anything else?) Hopefully it won't be dipping under 30% when parking back in the garage after work?

Thanks!
 

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ID.4 AWD Pro
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Discussion Starter · #3 ·
Good thread - this will be our first winter with an EV. Installing snow tires this afternoon. Just got our first flakes in Denver. No first hand experience but I’ve heard seat heaters are much less energy intensive than heated air. Not always enough, but man that thing turns on quick and hot.
Seriously!!! My @$$ gets warm enough within a minute on that highest setting!
 

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So far, September and October have been quite warm in NJ with our AWD Pro using mainly A/C this entire period of ownership... I suppose this will EVENTUALLY have to change and heating season (cold weather) will finally come upon us. With that - I've been reading that using heat in the winter months can drastically reduce range (on our non heat pump models). The car basically goes from an 80% to 40% charge almost every day (Mon - Thurs). Does anyone have any tips for the best way to handle heating the ID.4 in the winter? (Obviously lowering temperature is one of them - but anything else?) Hopefully it won't be dipping under 30% when parking back in the garage after work?

Thanks!
Use the electric heated windshield and seat heaters instead of having the heat set at higher temps. You can also charge to 90% each day instead of 80% without any issues. You may be coming in lower than your 40% currently, but you’ll be fine. I usually have my heat set at ~68.
 

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21 ProS Red - 23 ProS Plus Arctic Blue locked
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I've made sure that the back seat heat vents are shut. At home, I plug into my L2 and use CarNet before driving off to warm the car nice and toasty. Yes to what Rousie13 said about the seat warmer, and I use the steering wheel warmer too. This covers my hands and butt! I wear a sweater, set the heat at no more than 65 degrees F, hope that the glass roof produces a greenhouse effect, drive with a thermos of hot coffee and remind myself how miserable I was during the most recent heat wave.
 

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If you have the heated windshield (AWD) it’s amazing… used it yesterday morning when the windshield was refogging after wiping off the dew with the wipers. Almost instantly stopped that. No need to wait for the defroster to blow on it.

I do wish the heated windshield, rear window and side mirrors weren’t on three separate switches, however. (The front and rear are under the headlight control, and the side mirrors are on the side mirror control on the driver’s door.)
 

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If you have the heated windshield (AWD) it’s amazing… used it yesterday morning when the windshield was refogging after wiping off the dew with the wipers. Almost instantly stopped that. No need to wait for the defroster to blow on it.

I do wish the heated windshield, rear window and side mirrors weren’t on three separate switches, however. (The front and rear are under the headlight control, and the side mirrors are on the side mirror control on the driver’s door.)
Does anyone know of a "Hello ID" command that might turn all three on at the same time? Something like "Hello ID defrost everything"?
 

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Does anyone happen to know how much energy the heater pulls from the battery. In my 2013 ELR it would pull about 7kw which meant that even plugged into the L2, the heater would use the battery. I'm curious to know if the heater in the ID4 can run off the L2 without using the battery.
 

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Always pre-heat the car if possible and keep a blanket in the car with you! I'm serious. I drive a 180 mile round trip weekly across Massachusetts. In winter, at night, in snow with lights on and windshield wipers running it can be anxiety inducing to watch the SOC drop like a rock. Turning the heat way down or even off makes an enormous difference. On occasion I've driven home with the cabin heat off— bundled in a blanket. The heated seat/wheel is warm and it's comparable to being at a chilly football game! Once you get to a "safe" distance you can crank the heat up and get cozy. To me it's a minor inconvenience since I love everything else about EV's and it only affects me 2-3 times per year.
 

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Happy owner of a blue ID.4 First Edition
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Does anyone happen to know how much energy the heater pulls from the battery. In my 2013 ELR it would pull about 7kw which meant that even plugged into the L2, the heater would use the battery. I'm curious to know if the heater in the ID4 can run off the L2 without using the battery.
I recall that the heater falls into the 6-7 kW range. You can probably find a thread with the appropriate numbers here, and the NHTSA tech papers are always worth checking for such stuff.
If the above number is correct you should be fine on any L2 charger of 32A and above. The car will draw energy from the house and not from the battery, for the most part. Even if your charger is lower, you will still not use battery energy for the juice you can pull from the house. Much better than the alternative.
So, just preheat.
 

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2021 AWD Pro S on 2.1
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Does anyone happen to know how much energy the heater pulls from the battery.
The battery PTC heater is infinitely variable from 0 to 5.5kw. When a charger is capable of less than 5500 watts the car has a secret algorithm to decide how much of that goes to heat versus charge. But it heats only when the coolant loop is below 46F. So yes it can run off the L2 without battery if you have a big enough L2. Also the charging process makes coolant loop heat in both the liquid cooled 11kw charging unit and the battery, so there is less need for the PTC heater once its been running a while.

Edit to add:
Regarding some owners who posted about charging Battery when very cold, it will not use full power even if connected to 48A L2 charger. ...it will switch to specific mode (im not allowed to discuss)and keep heater on and coolant pump to bring HV Battery temp. As temperature is rising it will switch on HV interlock and start trough 3 different charging stages before initiate normal operation and full current availability from EVSE.
 

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Turning the heat way down or even off makes an enormous difference. On occasion I've driven home with the cabin heat off— bundled in a blanket.
Is there a way to turn heat and AC off without turning off climate control altogether? The car gets very stuffy very quickly without a little air circulation
 

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ID.4 AWD Pro
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Discussion Starter · #14 ·
The battery PTC heater is infinitely variable from 0 to 5.5kw. When a charger is capable of less than 5500 watts the car has a secret algorithm to decide how much of that goes to heat versus charge. But it heats only when the coolant loop is below 46F. So yes it can run off the L2 without battery if you have a big enough L2. Also the charging process makes coolant loop heat in both the liquid cooled 11kw charging unit and the battery, so there is less need for the PTC heater once its been running a while.

Edit to add:
So correct me if I'm wrong - if my L2 is giving me 7.5kW and I'm plugged in all night (let's assume it's done charging to 80%).... If it gets too cold overnight (<46f coolant) and I'm still plugged in, the car will draw energy off the L2 instead of the car to heat the battery up? Or am I totally off?
 

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2021 AWD Pro S on 2.1
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So correct me if I'm wrong - if my L2 is giving me 7.5kW and I'm plugged in all night (let's assume it's done charging to 80%).... If it gets too cold overnight (<46f coolant) and I'm still plugged in, the car will draw energy off the L2 instead of the car to heat the battery up? Or am I totally off?
That is a question I asked and have not gotten any clear answer. I hope so.
 

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VW ID.4 1st (picked up 3/19/21).
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Always pre-heat the car if possible and keep a blanket in the car with you! I'm serious.
When I had the Kona, I had a lap blanket that I could plug into the cigarette lighter. Sadly, that's not an option with ID.4 unless I snake an extension cable into the trunk.

I got my car in mid-March - the greenhouse effect of light coming in through the roof window was substantial - enough that it sometimes got too warm on sunny days.

You can use voice commands to open/close the shade - "Hello ID - open sun shade".
 

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So correct me if I'm wrong - if my L2 is giving me 7.5kW and I'm plugged in all night (let's assume it's done charging to 80%).... If it gets too cold overnight (<46f coolant) and I'm still plugged in, the car will draw energy off the L2 instead of the car to heat the battery up? Or am I totally off?
Battery heater max output is 5.5 kw, this doesn't mean it will run full power ( it has lin bus that controls the output)
It will draw power from EVSE ( considering you didn't set time to charge or set time to charge on EVSE)
 

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Does turning on climate control via Car Net also precondition/preheat the battery?
Battery temperature management is independent from car-net.
Unless future battery management revisions change this.
Depending on is the EV connected to the L1 or L2 or is it unplugged.
If plugged in it will maintain Battery temp irrelevant from car-net command.
If not plugged to EVSE it will use different algorithm how and when to heat battery.
Example....
Talking from engineering standpoint.
Id4 has mixing valve that will use waisted heat from electronics and motor propulsion to assist in heating battery when necessary ( unplugged)
So with that is more efficient to have different battery temp algorithm.
When plugged to L1 or L2 charger it will move strategy to keep battery pack at all times within calibration parameters without assist from waisted coolant heat loop.
Also when ID4 is charging and mixing valve is sensing temperature below set threshold it will circulate coolant trough the battery pack while charging on L1 or L2.
 

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ID4 Pro RWD
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126 Posts
Battery temperature management is independent from car-net.
Unless future battery management revisions change this.
Depending on is the EV connected to the L1 or L2 or is it unplugged.
If plugged in it will maintain Battery temp irrelevant from car-net command.
If not plugged to EVSE it will use different algorithm how and when to heat battery.
Example....
Talking from engineering standpoint.
Id4 has mixing valve that will use waisted heat from electronics and motor propulsion to assist in heating battery when necessary ( unplugged)
So with that is more efficient to have different battery temp algorithm.
When plugged to L1 or L2 charger it will move strategy to keep battery pack at all times within calibration parameters without assist from waisted coolant heat loop.
Also when ID4 is charging and mixing valve is sensing temperature below set threshold it will circulate coolant trough the battery pack while charging on L1 or L2.
Just wanted to say that I always appreciate your posts. Having someone who is both a technician and an ID4 owner sharing their wisdom on here is invaluable. Thank you!
 
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