Max heat setting for V70 heated seats?

Discussion in 'Volvo V70' started by Chris Mayhew, Dec 10, 2007.

  1. Chris Mayhew

    Chris Mayhew Guest

    I couldn't find anything in the archives about this. If I missed
    something please feel free to point me towards the relevant
    discussion.

    Anyway, I have a 2004 V70. I was told by the dealer that the seats can
    only be turned up to 109.5F. That seems paltry and the seats are not
    as warm as the '89 245 or the 2004 Accord I own.

    Am I at the limit? Am I not? Is there a way around the limit or
    another fix?

    Thanks.
     
    Chris Mayhew, Dec 10, 2007
    #1
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  2. Chris Mayhew

    Roadie Guest

    You may want to have the heaters on your V70 checked if they are not
    warming up the seats. On my 2004 V70 the high setting takes the chill
    off pretty fast and a minute or two of sitting captures enough of that
    radiated heat that it is borderline uncomfortable and the seat heater
    gets turned off.

    I'm thinking that a maximum temperature beyond 10 degrees above normal
    body temperature would get uncomfortably hot very quickly. The idea
    behind seat heaters is to raise the seat temperature from some very
    low number to body temperature. Not to boil water.
     
    Roadie, Dec 10, 2007
    #2
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  3. Chris Mayhew

    Chris Mayhew Guest

    Well, they work, if by that you mean hitting the switch makes the seat
    less cold. I cannot feel anything I would call heat either sitting in
    it or putting my hand on it.

    "Too hot to touch" is roughly 160F. I was able to find heated seats on
    line that went to about 135F.

    The seats were originally set at 98F, which is just silly. The dealer
    cranked them to 109.5F. What am I to do now, take the car back in, get
    charged an hour's work only to be told they *do* work?
     
    Chris Mayhew, Dec 11, 2007
    #3
  4. Chris Mayhew

    Joerg Lorenz Guest

    AFAIK your Volvo-dealer is able to adjust the max heat of your seat
    heating. It is adjustable in the series you own. At least my
    owners-manual says that for my 2005 V70 D5.
    Your welcome,

    Joerg
     
    Joerg Lorenz, Dec 11, 2007
    #4
  5. Chris Mayhew

    Roadie Guest

    That is the temperature for cooking most meat. Hardly comfortable.

    Heat output is cumulative when you are sitting on the seat. It builds
    up and that seat would get very hot, indeed dangerous if temperatures
    were held to that level. I doubt that you would find a seat that
    heats to 135 degrees let alone 160 degrees to at all comfortable.
    Think about what happens to your body once the outside temperature
    begins to approach and exceed body temperature.

    That's human body temperature which would seem to be about the right
    temperature setting.
    Yup.
    They do work as designed. Seat heaters are designed to do little more
    than take the chill off the seat bottom raise it to body temperature.
    Why anyone would want a seat to be radiating heat at 160 degrees is
    beyond comprehension.
     
    Roadie, Dec 11, 2007
    #5
  6. Chris Mayhew

    Chris Mayhew Guest


    I wasn't aruuing for seats that hot, just giving some temp
    comparisons.

    The questions still remains why my seats are not as hot as the Volvo I
    owned before this one or the Honda Accord I currently own. Neither my
    wife nor I find them satisfactory.
     
    Chris Mayhew, Dec 11, 2007
    #6
  7. Chris Mayhew

    eastender Guest

    We've also found the haeted seats in our 2001 V70 not as good as an S40 we
    had before. How do you turn the heat up?

    E.
     
    eastender, Dec 11, 2007
    #7
  8. Chris Mayhew

    Roadie Guest

    I can't tell you much about model-to-model differences. But I don't
    know how you could accurately compare the temperature output to a car
    that is no longer with you. There are too many variables.

    Does both the low and high heat setting work on your car seats?
     
    Roadie, Dec 11, 2007
    #8
  9. Chris Mayhew

    Chris Mayhew Guest

    I can tell you which felt warmer. That's pretty easy to differentiate.

    Yes. The single light setting is barely noticeable to my bare hand.
    The double light setting is noticeable but tepid.
     
    Chris Mayhew, Dec 11, 2007
    #9
  10. Chris Mayhew

    Roadie Guest

    They are not designed to be instantaneous hand (or seat) warmers.
    They are designed to radiate a certain amount of heat that is held in
    by your rear end covering the entire seating area. Heat is trapped
    and builds up usually within a minute or two. A more precise if less
    sales oriented description would be that they are chill removers.
     
    Roadie, Dec 11, 2007
    #10
  11. My '01 V70 heated seats are the first ones that had two levels of heat.
    That is the only adjustment: high, low, off. I find that they are very
    hot, my wife says the aren't hot. I wear a short coat and my trousers
    are the only thing between my leg and the seat and it gets uncomfortably
    hot. My wife wears a long coat, so she never feels the heat.

    Heated seats are actually intended to take the chill out of the seat and
    provide a neutral surface, not heat up your body. Of course the heat
    is much more important with a leather seat than with a fabric seat.
    Leather gets hot in the summer and stays cold in the winter. Fabric is
    neutral all year long. It seams that Volvo heated seats have a thermal
    switch that detects when the heat is getting too high and turns them
    down to a low setting. That is entire an empirical observation. I have
    never taken one apart and seen the thermal switch.
     
    Stephen Henning, Dec 11, 2007
    #11
  12. maybe the fat tissue is different as well my passenger seat rippled because
    of too much heat now its fine after use with out the heater on
     
    John Robertson, Dec 12, 2007
    #12
  13. Chris Mayhew

    eastender Guest

    I'm not that bothered - it's just that the S40 seats were much warmer and
    faster to heat up than our V70 (both cars have leather seats).

    E.
     
    eastender, Dec 12, 2007
    #13
  14. Chris Mayhew

    Roadie Guest

    The S40 seats are a lot smaller....
     
    Roadie, Dec 13, 2007
    #14
  15. Chris Mayhew

    eastender Guest

    And I think our bottoms have got bigger...

    E.
     
    eastender, Dec 13, 2007
    #15
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