The answer depends on what equipment has your multi-function display. I suggest you refer to the user manual.
Start with the thermometer in off mode. Hold the smiley face down and wait. The thermometer display will scans through multiple functions. The first display will be C*, you want to continue holding the smiley face until the display shows F*and then let go. This will change the setting from Celsius to Fahrenheit.
With the unit in the off mode, depress the on/off switch and hold in until the "c" in the display switches to an "f." It will now measure in Fahrenheit.
Leave it off and then hold down start button until c flashes up on the display
1 degree Celsius equals a change of 9/5 = 1.8 degrees Fahrenheit and 1 degree Fahrenheit equals a change of 5/9 = 0.555555555 degrees Celsius.
1 degree Celsius = 33.8 degrees Fahrenheit 2 degrees Celsius = 35.6 degrees Fahrenheit 35.6 - 33.8 = 1.8
to change the celsius on display to Fahrenheit, u want to press the econ button on your climatronic, then right after press your auto button right above the econ button, at this time the display should switch to Fahrenheit or Fahrenheit to celcius whichever u prefer....hopes this helps..
Hope this helps. On 1999 model beetle, with key on push and hold in hour and minute buttons at same time this will change your temp from Celsius to Fahrenheit.
Start with the thermometer in off mode. Hold the smiley face down and wait. The thermometer display will scans through multiple functions. The first display will be C*, you want to continue holding the smiley face until the display shows F*and then let go. This will change the setting from Celsius to Fahrenheit.
With the unit in the off mode, depress the on/off switch and hold in until the "c" in the display switches to an "f." It will now measure in Fahrenheit.
Celsius = 5/9*(Fahrenheit-32) Fahrenheit = 9/5*(Celsius)+32
Leave it off and then hold down start button until c flashes up on the display
This varies from one car to another. At the risk of sounding flip, the first place to check is your owner's manual.
46 degrees Fahrenheit = 7.78 degrees Celsius
1 degree Celsius equals a change of 9/5 = 1.8 degrees Fahrenheit and 1 degree Fahrenheit equals a change of 5/9 = 0.555555555 degrees Celsius.
1 degree Celsius = 33.8 degrees Fahrenheit 2 degrees Celsius = 35.6 degrees Fahrenheit 35.6 - 33.8 = 1.8
99.4 f = 37.44 c
20 degrees Celsius is 68 degrees Fahrenheit. 45 degrees Celsius is 113 degrees Fahrenheit. So 25 degrees change Celsius = 25 x 1.8 = 45 degrees Fahrenheit. 1 degree change in Celsius is equivalent to 1.8 degrees change in Fahrenheit. Scroll down to related links and look at "Conversion of Temperature Units".