[Googleman]

Keeping the blower speed to minimum speed helps.

Am not sure how many are aware of the fact but in the blower speed 1,2,3,4. The most chilling is done in speeds 2 and 3. If you switch the blower speed to the max, does not mean it will do more chilling. It will blow more air, that's it. The chilling is quicker in low blower speed than the maximum. The compressor never stops or trips off like the ACs we have at home.

Also, I don't understand why are people not able to bear the chilling done by the AC, we anyways have temp control.

Reducing power for AC to decrease load on Engine. I don't think there is a way to so that, otherwise all commercial vehicles+hotels and restaurants would start doing that to reduce elce bill.

[saurabhnanda]

So, now I feel a noticeable 'surge' in power every now & then when driving with the A/c on. I don't think I feel the compressor switching on & off though. Any reasons why?

[Googleman]

The compressor never switches off unless the AC itself is switched off.

There is no way to reduce the load on Engine. It has become a habit for me, whenever I have to overtake a vehicle quick, I switch OFF the AC and then switch it on after overtaking is done. This acts like NITRO on lower gears

[kollamraja]

Originally Posted by ilangop

The Engine ECU takes care to cut-off the AC compressor when the Accelerator pedal is suddenly floored.

And how and when does the compressor restart? Maybe its too much to expect this feature is my humble Nano.

[Swapnil4585]

When the AC is off, the car pulls and accelerates and flies at speeds more than that of the Gatimaan Express. But when the AC is turned on - temperature set at 26 degrees and blower speed of 2 - the car struggles to maintain 100.

Is there any mechanical problem to look at here? Car in question here is an 1800cc petrol car.

[antz.bin]

Originally Posted by Swapnil4585

When the AC is off, the car pulls and accelerates and flies at speeds more than that of the Gatimaan Express. But when the AC is turned on - temperature set at 26 degrees and blower speed of 2 - the car struggles to maintain 100.

Is there any mechanical problem to look at here? Car in question here is an 1800cc petrol car.

Octavia, Laura, Elantra, Civic or Corolla? If yes, then there is something seriously wrong with the Aircon.

If however it is Amby or Contessa, then no idea.

You mentioned that you set the blower speed and the temperature. Any reason for not using auto mode?

[Swapnil4585]

Originally Posted by antz.bin

Octavia, Laura, Elantra, Civic or Corolla? If yes, then there is something seriously wrong with the Aircon.

If however it is Amby or Contessa, then no idea.

You mentioned that you set the blower speed and the temperature. Any reason for not using auto mode?

It is a Corolla. No particular reason for not using the auto mode.

The cooling is good, just that it saps a lot of power. Can low refrigerant be a reason?

[antz.bin]

Originally Posted by Swapnil4585

It is a Corolla. No particular reason for not using the auto mode.

The cooling is good, just that it saps a lot of power. Can low refrigerant be a reason?

If it is a refrigerant issue, the car will be very slow to cool down. It will take a few minutes before you start feeling the cold air. We faced this on the Civic a couple of years back.

The issue could be with the compressor on its last legs. Maybe that's what sapping the power to overcome the resistance of a failing compressor.

[flipflop]

I’d get the compressor checked if I was you, to make sure it’s not showing signs of wear and consuming extra power. A stage one tune will help too, if you want more power and torque.