Turn Off A/c From A/c Button Or Blower

[Nirosha]

What is the difference between turn off A/C from A/C button and turn off from blower? If I turn off using the blower is the compressor still working? Because I heard that turn off and turn on the A/C frequently is not good for the compressor.

[terrabytetango]

No difference. My car doesn't even have an A/C button, the thermostat at the lowest setting is what switches off the compressor. However, do avoid starting the car with A/C on.

[maheshw]

i have seen some people used to swtich off & on a\c very frequently. dont know whther it will help them increase fuel consumption or don't know why they are doing like it. normally what thermostat doing it automatically to give a rest to compressor. better to retain it by doing manually.

[chandana10346]

dear friends,

very good question, I also waiting for experts advice.

what are the very suitable positions of all three AC nobs (air flow direction, blower speed & temperature setting nobs) ?

thanks

[VVTi]

As a habit, I switch off the AC button about a 1km from my destination. The rationale is that if you switch off the ac while it was working condensatuion will build and if you leave the car overnight this water will collect and create a damp environmnet that will be breeding ground ofr mold, bacteria and of course aid in rusting the cooler. Many cars nowadys have hidden the AC cooler so deep inside the dash that removing the dash will cost more money than the cooler itself. Knocking the AC off first tends to blow off the cold air and dry the cooler by the time you stop the car. Besides most coolers retain the cold for a short while, and most of you will noty have to 'sweat' it out and ruin your makeup...

Also as a habit I leave the climate control at 22-25degs as that is the ideal temp for our conditions as anything less than that the AC is working hard to maintain a very low temp that is impossible with our ambient temperatures unless it is in the night or up in the hills. This way it will help with the thing that most of you are worried about, fuel consumption as the AC will not be working full time.

But that's just me.

Edited May 25, 2012 by VVTi

[YALA]

i just knock it off from the blower it self that way the compressor stops as well..really doesnt make sense using only the blower in sl because it will only be spitting out warm air

[NRX]

  On 5/25/2012 at 3:44 AM, Nirosha said:

What is the difference between turn off A/C from A/C button and turn off from blower? If I turn off using the blower is the compressor still working? Because I heard that turn off and turn on the A/C frequently is not good for the compressor.

If I turn off using the blower is the compressor still working ? No.

Edited May 25, 2012 by NRX

[Nirosha]

Thanks guys for your replies.

  On 5/25/2012 at 4:11 AM, maheshw said:

i have seen some people used to swtich off & on a\c very frequently. dont know whther it will help them increase fuel consumption or don't know why they are doing like it. normally what thermostat doing it automatically to give a rest to compressor. better to retain it by doing manually.

Some times A/C switch works as a turbo booster. When turn off the A/C car accelerates like a rocket. Worked very well with my 1st car diesel G101. When wanted to overtake just turned off the A/C.

[NRX]

  On 5/25/2012 at 4:57 AM, Nirosha said:

Some times A/C switch works as a turbo booster. When turn off the A/C car accelerates like a rocket. Worked very well with my 1st car diesel G101. When wanted to overtake just turned off the A/C.

LOL, I too use it. I have instructed wifey to press the AC button whenever we are overtaking large buses in steep hills

[anjulau78]

.

Edited May 25, 2012 by anjulau78

[Amila G]

  On 5/25/2012 at 5:01 AM, NRX said:

LOL, I too use it. I have instructed wifey to press the AC button whenever we are overtaking large buses in steep hills

Me too, ac button is my turbo boost button

[razordj]

  On 5/25/2012 at 5:01 AM, NRX said:

LOL, I too use it. I have instructed wifey to press the AC button whenever we are overtaking large buses in steep hills

Good mutual understanding.

I sometimes turn off the ac by myself (can't trust my wife with that), or the next best, lower the gear to 2nd and rev to 4k, 5k so other will look like wtf

Edited May 25, 2012 by razordj

[heavyD]

If u guys are using the A/C switch as a 'booster', it's time to get a more powerful car.

Edited May 25, 2012 by heavyD

[liya]

This "A/C turbo boost" would be especially useful if you want to make your car jump across a river

[Sampath Gunasekera]

  On 5/25/2012 at 5:01 AM, NRX said:

LOL, I too use it. I have instructed wifey to press the AC button whenever we are overtaking large buses in steep hills

Machan, it was compulsory with my previous Japanese Alto 660cc.

I feel if A/C switch mounted on steering wheel it would have more helpful.

Also when we sell our vehicles, we can advertise as "multifunction steering wheel with A/C button"

[NRX]

  On 5/25/2012 at 10:46 AM, liya said:

This "A/C turbo boost" would be especially useful if you want to make your car jump across a river

Edit : nvm, The youtube links weren't visible

Edited May 25, 2012 by NRX

[Nilantha]

if your compresor Rotary type one, this AC switch will not work as turbo booster.

[jehan80]

  On 5/25/2012 at 3:52 AM, terrabytetango said:

However, do avoid starting the car with A/C on.

Just wondering...is this really necessary on modern vehicles? Say, built in the past 7, 8 years?

[The Stig]

  On 5/25/2012 at 10:22 AM, heavyD said:

If u guys are using the A/C switch as a 'booster', it's time to get a more powerful car.

Nahh sometimes people are just lazy to shift into a lower gear when needed, pressing a little button is much easier. My dad has this habit, he needs two people to drive the car

[NRX]

  On 5/25/2012 at 12:19 PM, Nilantha said:

if your compresor Rotary type one, this AC switch will not work as turbo booster.

I disagree, although a rotary type compressor uses less power from the engine than a piston type it still uses power, FYI mine is rotary type and turbo boost works

[NRX]

  On 5/25/2012 at 2:11 PM, jehan80 said:

Just wondering...is this really necessary on modern vehicles? Say, built in the past 7, 8 years?

I think what he meant was the strain on the engine in a cold start which the engine is running dry for sometime. It's same as saying do not rev hard just after you start your car.

Edited May 26, 2012 by NRX

[kaju]

I too use the A/C button as a 'turbo boost'

This thread has been useful. Thanks.

[Nirosha]

Lot of A/C powered turbo boosters..

[Magnum]

  On 5/25/2012 at 2:14 PM, The Stig said:

Nahh sometimes people are just lazy to shift into a lower gear when needed, pressing a little button is much easier. My dad has this habit, he needs two people to drive the car

  On 5/25/2012 at 10:13 AM, razordj said:

Good mutual understanding.

I sometimes turn off the ac by myself (can't trust my wife with that), or the next best, lower the gear to 2nd and rev to 4k, 5k so other will look like wtf

  On 5/25/2012 at 7:53 AM, Amila G said:

Me too, ac button is my turbo boost button

  On 5/25/2012 at 5:01 AM, NRX said:

LOL, I too use it. I have instructed wifey to press the AC button whenever we are overtaking large buses in steep hills

  On 5/25/2012 at 4:57 AM, Nirosha said:

Thanks guys for your replies.

Some times A/C switch works as a turbo booster. When turn off the A/C car accelerates like a rocket. Worked very well with my 1st car diesel G101. When wanted to overtake just turned off the A/C.

Guys! i heard that its not good do that often, i remember having an issue with my car A/C around two years ago i guess it was with the compressor and the mechanic told me not turn off and turn on the A/C regularly when driving at high speed

[NRX]

  On 5/27/2012 at 4:24 PM, Magnum said:

Guys! i heard that its not good do that often, i remember having an issue with my car A/C around two years ago i guess it was with the compressor and the mechanic told me not turn off and turn on the A/C regularly when driving at high speed

Something like the AC clutch wear ?

But then again the compressor cycles on-off by the car itself, then it should be bad too eh ?

Edited May 27, 2012 by NRX

[Magnum]

  On 5/27/2012 at 4:59 PM, NRX said:

Something like the AC clutch wear ?

But then again the compressor cycles on-off by the car itself, then it should be bad too eh ?

Think of it this way, when it automatically turns off and turns on you dont see any difference on the pulling power of the engine right? but once you turn it off and turn it on you feel like a huge load has been placed on the car isnt it, so such an sudden pressure on your car should affect it somehow.