Optimum Air Con Temp Setting

[clarence]

I think Nissan has a "weird" air-con adjustment algorithm. There are temperature sensors just under and slightly to the left of the steering wheel. And an "external" sensor near the windscreen.

Say you set 26C. On a hot day, that 26C will make the aircon compressor compensate by running the compressor much harder because the "external" sensor thinks "boy it's a really hot day".

On a cool day, the "external" sensor says "I don't really think he wants cold air right now" and runs the compressor under light load. The internal sensor thinks the temperature is just fine because it is located lower down where cold air sinks.

I think you can get over this problem by putting a small piece of cardboard over the sensor located on top of the dashboard.

[HumbleCar]

I think Nissan has a "weird" air-con adjustment algorithm. There are temperature sensors just under and slightly to the left of the steering wheel. And an "external" sensor near the windscreen.

Say you set 26C. On a hot day, that 26C will make the aircon compressor compensate by running the compressor much harder because the "external" sensor thinks "boy it's a really hot day".

On a cool day, the "external" sensor says "I don't really think he wants cold air right now" and runs the compressor under light load. The internal sensor thinks the temperature is just fine because it is located lower down where cold air sinks.

Hi Bro, where is the external sensor near the windscreen?  Understand that the sensor under the windscreen in front of the passenger seat is for lighting to activate auto-on headlamp?

[clarence]

There is no auto headlamp on feature for Latio.

It is avail in Cefiro.

[mcxl]

My CVT has auto headlamp and the sensor is below the windscreen of the passenger side. Understand the 4AT doesn't have....right? By the way, complained to TCM on my last 5k servicing (last month) that the AC was not cold and in the service report, it indicated an AC Temp reset was done. Have been driving at 27C and it can get quite cold on rainy days.

[maxngck]

There is no auto headlamp on feature for Latio.

It is avail in Cefiro.

mine hv leh. think only premium version hv it

[burnolise]

Whenever i parked my car under the sun in the morning ...then ard noon, get onto the car...it is so hot tat even when i put max fan speed and min temp also cannot cool the car for my 15mins drive to my lunch destination......i wind down the window before driving off to let off hot air also no use....dun know is it because mine is black....

[clarence]

Dark coloured cars tend to attract heat like bees to honey.

Even the best window tinting will not help as the heat radiation via the metal is greater.

And if your seats are black, even more heat attracted.

[HumbleCar]

My CVT has auto headlamp and the sensor is below the windscreen of the passenger side. Understand the 4AT doesn't have....right? By the way, complained to TCM on my last 5k servicing (last month) that the AC was not cold and in the service report, it indicated an AC Temp reset was done. Have been driving at 27C and it can get quite cold on rainy days.

I had the same problem.  Used to set 23 or 24 degree.  Suddenly, 23 also not cold at times.  Told TCM during recent servicing.  Report put "A/C Efficiency Check" and was told that they clean the air-con filter.  Now got to set it to 26 or 27 degree (else too cold).  Really wonder if the cleaning is so effective or is it that they change the degree display only  (meaning that the air-con work as per normal, but the temperature displayed is shown at a higher degreei).

[clarence]

The conventional knob type for air con temperature setting (found in new facelift Latio) seems to be better.

This pre facelift Latio digital air con temperature setting seems problematic.

[Silver]

can try manual setting?

[burnolise]

The conventional knob type for air con temperature setting (found in new facelift Latio) seems to be better.

This pre facelift Latio digital air con temperature setting seems problematic.

Is it? When i drive my latio in the morning and evening, usually 25degree at min fan speed is enough liao...also, i am alone in the car lar....in addition, i am afraid of cold......

[limck007]

i also do that.. most of the time (morning & in evening) >> i also set my temp to be 25 or 25

unless i drive out for lunch/meeting in afternoon then i might lowered it to 23

but on average >> its 25

[darrylker]

Dark coloured cars tend to attract heat like bees to honey.

Even the best window tinting will not help as the heat radiation via the metal is greater.

And if your seats are black, even more heat attracted.

Woah...that's precisely the combination that I have for my ride currently, black ride w black leather seat....currently using V-Cool, but on hot afternoon, still very hot despite the max air con...usually need abt 10-15min before it cools down...

[burnolise]

Woah...that's precisely the combination that I have for my ride currently, black ride w black leather seat....currently using V-Cool, but on hot afternoon, still very hot despite the max air con...usually need abt 10-15min before it cools down...

Mine the same config also...when i bought my car...the SE told me clearing stock to make space for the F/L....so only left with white and black car...wanted to take the white one but interior is beige...look very auntie...though i not young also...so in the end chose black car with black interior....not bad for ur car to cool in 10-15mins....mine is not VCool...i just saw the sticker the other day and saw tat it is max something....in the afternoon...my car can't even cool in 20mins...sign....
 

[clarence]

Black interior and exterior is worst combination in such hot tropical climate.

But it looks very nice 

You probably paid $53K for your pre facelift YOM2007 Latio? Now new facelift YOM2008 fresh stock Latio only $52K.   

[burnolise]

Black interior and exterior is worst combination in such hot tropical climate.

But it looks very nice 

You probably paid $53K for your pre facelift YOM2007 Latio? Now new facelift YOM2008 fresh stock Latio only $52K.   

Urgh........stop rubbing salt into wound.....urghh.h.h.h......wat is ur car plate number....i will go hunt u down and give ur car a good kick......

sign....wat to do...tot i got a gd deal...in the end....sign.......look forward!!!
 

[clarence]

SJC 1793 D   

[burnolise]

SJC 1793 D   

An auntie tat has gone wild is beyond reasons and incapable of sanity......auntie coming...u wait....haha....will give u friendly horn if i see u on the rd...

Btw, do u guys notice tat if u set min fan speed and temp to 25...the fan blows softly...and then u change the temp to 23 keeping fan speed settings to min...the fan blows loudly...wonder they really just change the display only...

[maxngck]

An auntie tat has gone wild is beyond reasons and incapable of sanity......auntie coming...u wait....haha....will give u friendly horn if i see u on the rd...

Btw, do u guys notice tat if u set min fan speed and temp to 25...the fan blows softly...and then u change the temp to 23 keeping fan speed settings to min...the fan blows loudly...wonder they really just change the display only...

hi!

when u set ur temp at 25 and fan lvl 1, if u change the temp to 27, the fan seem become softer. think this is their temp control bah.

[burnolise]

hi!

when u set ur temp at 25 and fan lvl 1, if u change the temp to 27, the fan seem become softer. think this is their temp control bah.

I not so sure abt this....at least i know altis, Mazda3 and old model of lancer is not like tat..when i decrease the temp keeping the fan speed to min...the air tat blows out just get colder without the louder fan blow..