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In the older Model S, there is a separate battery heater. Heat from DC-DC converter, OBC, and drivetrain can also be used to heat the battery.2012 P85. No cabin heat from vents. Service set for 1 Dec. Can/should the car be driven? i.e. with no cabin heat is there heat to maintain HV battery when needed? Thanks.
I would bet that if the car is not drivable due to heating or cooling issues, you'd be getting all sorts of alerts.2012 P85. No cabin heat from vents. Service set for 1 Dec. Can/should the car be driven? i.e. with no cabin heat is there heat to maintain HV battery when needed? Thanks.
This sounds far more serious than a failed PTC heater. When you get it back, I'd be interested to know what went wrong.I‘m in same situation right now as the PTC heater have probably failed. Lucky you can drive. Mine is completely stranded, first it had one full page of all sort of codes and warning.
OK, car has now been fixed. They found that it was electrical batery heating device that triggered these HV isolation codes and the PTC heater operates as should. I believe in my case the car protected the battery by not allowing to get into drive. See photo
Also the service was unexpectedly fast and very helpful! They said I can bring my car over as soon as able, Tesla has dedicated “car not drivable” team that can help outside the ordinary service queue. Reaced over on Tuesday and car fixed this evening. Very grateful of the outcome!
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Well the unit on my car had a internal failure as this was diagnosed by the technician. And I had quite distinct burning smell in the car.
Well the unit on my car had a internal failure as this was diagnosed by the technician. And I had quite distinct burning smell in the car.
What s this App you using in your phone?Thats a great definitive confirmation! Been working with another owner to try to turn on our coolant heater to confirm it works. Here is what we found so far
- 45min drive didn't turn on coolant heater at all. Battery warming by stator and cell discharger/regen alone. See attached PDF. I hear Model 3 has no coolant heater so it warms battery by stator alone and cell dis/regen alone. Looks like MS is using same coolant heating profile.
- Car in garage, 30F weather, plugged into charger and turn on hi defrost via app finally turned on coolant heater
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I do think it takes quite awhile to warm up battery to gain full regen. Its 1000lb of battery starting at say 8C needing to get to near 20C for full regen with 3 heating sources (stator, coolant heater if on, battery discharge/regen) My stator temp was only ~40C in 35mph driving and got up to 60C in 3mi 65mph highway run.
But yeah, battery heater dying requiring a tow is terrible. Thus, been thinking about how to avoid getting stranded by these 3 DCDC HV devices (coolant heater, cabin heater, AC compressor). No confirmed solutions yet. Thread here.
What s this App you using in your phone?