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Air Conditioning

Discussion in 'Hong Kong' started by wslam, Dec 15, 2014.

  1. wslam

    wslam Member

    Joined:
    May 16, 2014
    Messages:
    76
    Location:
    Hong Kong
    I took delivery of my P85 just a few days ago. Enjoying it tremendously. However, the only complaint we have is the air conditioning. I prefer to just set the temp and then everything on Auto. This is what I do with every car I have owned and have never had an issue.

    However, in my P85, if I put it on Full Auto and set temp to say 20°C, it feels horribly stuffy with very little airflow.

    Also, using the iOS app, I see that the AC never really achieves the target temperature.

    Do you guys have this problem? Or do I have a problem with my AC?

    Lastly, I noticed that, even when the temp is about 15°C outside last night in the garage, the car remains at 20-22° with AC off. Is the car that well insulated?

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  2. Lerxt

    Lerxt Member

    Joined:
    Feb 21, 2014
    Messages:
    949
    Location:
    Hong Kong/Australia
    I agree that this is an issue. I took my car in and asked them about it and they said it's working as designed. I would suggest setting a lower temp than you want, it seems to boost the fan speed.
     
  3. 3fiftynine

    3fiftynine Member

    Joined:
    Oct 19, 2014
    Messages:
    256
    Location:
    Hong Kong
    With my limited knowledge about car AC climate control I guess it's like a typical control system by design. Japanese cars are must more aggressive/faster in response, i.e. it peaks (fan/compressor rev to max) when there is a substantial difference between measured interior temp and desired/set temp, i.e. it responds quickly and will bring you to comfort faster. However the downside is energy consumption and overshooting (too cool, lower than set temperature) and it takes a while to ram back and go steady. These fluctuation in temperature and faster response are at the expense of your battery.

    My experience so far is that if you want faster response, drive the set temp down and after few minutes manually adjust it back to say 22/22.5 .... let's see when summer comes!
     
  4. wan888

    wan888 Member

    Joined:
    Sep 20, 2014
    Messages:
    41
    I totally agree ... the A/C suck!
    The vents are also quite bad, no matter where you point the vents, it always just blows towards your face.
    The rear feels hot.
    When adjusted to fan speed 5+ it becomes too noisy.....
     
  5. 3fiftynine

    3fiftynine Member

    Joined:
    Oct 19, 2014
    Messages:
    256
    Location:
    Hong Kong
    Anyone who got their car this summer? I think it's all in the software since almost everything is user configurable perhaps Tesla should listen up and issue firmware upgrade to allow us to set AC response time. Trip computer could prompt us that "range is reduced by xxx km", it's up to us really!
     

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