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[Steveplumb]

Does any one know what the 'Auto' setting for the vent  blowers is actually selecting automatically or is it really a preset of several vent open and doesn't ever change . 

[alexandjen]

The sunlight sensor on the centre of the dash by the screen will alter the airflow to the dash vents

[tunnie]

it turns on the compressor (if outside temp is above a certain amount) it also controls the fan speed automatically, based on what the sun sensor reports. I usually turn the fan speed down manually, but its always left on auto to keep the compressor running. Running Eco during winter is false economy, as come the summer, bang goes compressor!

[Shrek]

I thought "AUTO" was only for the air distrubution according to temperature and sunlight sensor etc ... I thought that pressing "ECO" so "ECO" is NOT in the display turns the compressor on depending on outside temp .
I always thought having ECO on the display means the compressor is OFF and therefor its more economical as using a/c uses more petrol  :-/

[alexandjen]

Correct - Eco = no air con cooling 

[Shrek]

Correct - Eco = no air con cooling 

I know i put "thought " , but i knew i was right 

ECO on dash display = no compressor so no aircon 

[Andy B]

...
ECO on dash display = no compressor so no aircon 

The theory says it's more economical than when in AUTO ie with the a/c ON, but in practice makes not much difference. 

[tunnie]

I thought "AUTO" was only for the air distrubution according to temperature and sunlight sensor etc ... I thought that pressing "ECO" so "ECO" is NOT in the display turns the compressor on depending on outside temp .
I always thought having ECO on the display means the compressor is OFF and therefor its more economical as using a/c uses more petrol  :-/

Its minimal, if you don't use it the the compressor can easily dry up, and going to cost way more than the amount you save in fuel 

[Shrek]

I thought "AUTO" was only for the air distrubution according to temperature and sunlight sensor etc ... I thought that pressing "ECO" so "ECO" is NOT in the display turns the compressor on depending on outside temp .
I always thought having ECO on the display means the compressor is OFF and therefor its more economical as using a/c uses more petrol  :-/

Its minimal, if you don't use it the the compressor can easily dry up, and going to cost way more than the amount you save in fuel 

I understand that but thats not what the op was asking ... i was stating that eco is supposed to be more economical cause the compressor isnt running so therefore less load on the engine 

The Op asked what "AUTO" was for and as far as i am concerened it ditributes the air in the best way to keep the car at the desired temperature set on display .
Having "AUTO" on the display does not turn the A/C on 

[tunnie]

I thought "AUTO" was only for the air distrubution according to temperature and sunlight sensor etc ... I thought that pressing "ECO" so "ECO" is NOT in the display turns the compressor on depending on outside temp .
I always thought having ECO on the display means the compressor is OFF and therefor its more economical as using a/c uses more petrol  :-/

Its minimal, if you don't use it the the compressor can easily dry up, and going to cost way more than the amount you save in fuel 

I understand that but thats not what the op was asking ... i was stating that eco is supposed to be more economical cause the compressor isnt running so therefore less load on the engine 

The Op asked what "AUTO" was for and as far as i am concerened it ditributes the air in the best way to keep the car at the desired temperature set on display .
Having "AUTO" on the display does not turn the A/C on 

It does if the outside temp is above a certain amount, i forget what the limit is

[Shrek]

I thought "AUTO" was only for the air distrubution according to temperature and sunlight sensor etc ... I thought that pressing "ECO" so "ECO" is NOT in the display turns the compressor on depending on outside temp .
I always thought having ECO on the display means the compressor is OFF and therefor its more economical as using a/c uses more petrol  :-/

Its minimal, if you don't use it the the compressor can easily dry up, and going to cost way more than the amount you save in fuel 

I understand that but thats not what the op was asking ... i was stating that eco is supposed to be more economical cause the compressor isnt running so therefore less load on the engine 

The Op asked what "AUTO" was for and as far as i am concerened it ditributes the air in the best way to keep the car at the desired temperature set on display .
Having "AUTO" on the display does not turn the A/C on 

It does if the outside temp is above a certain amount, i forget what the limit is

The compressor WILL NOT run if outside air is  +5 degrees or lower roughly ... according to the owners manual anyway .
But even if its +30 degrees outside selecting 20 degrees inside and pressing AUTO will not cause the compressor to run unless ECO is NOT on the display 
If ECO is showing you will not get cooling because the compressor is turned off 

[Shrek]

http://images.omegaowners.com/documents/UserGuides/OmegaOct2002.pdf

Page 126 onwards 

[Broomies Mate]

I assume this is different for countries with a colder climate?  If not, a severe design defect.  I can only imagine that anyone who lives in, say, Canada with a Catera must need a new Air Con COmpressor every couple of years!  :-/

[tunnie]

i don't think in the 5 years of ownership i've pressed the Eco button!

[Broomies Mate]

i don't think in the 5 years of ownership i've pressed the Eco button!

I do, but without real reason.  Sometimes, when the fuel light is flashing and you dont have a penny in your pocket, it's a desperate attempt of getting an extra mile from the fumes in the tank