MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: vag12 on July 25, 2012, 08:35:31 pm

Title: How long does te AC take to kick in from cold start also what is the econ button
Post by: vag12 on July 25, 2012, 08:35:31 pm
Yesterday I had my AC gas refilled and after it started givin out nice cold air but that was yesterday, today morning when I drive the car and used the AC it was only blowing out hot air, it got to 90 degrees and still no cold air, I went for a abit of shopping and after that when I tried it started blowing cold air,
So my question is should it take so long to bring out cold air? And what is the econ button for?
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: edd666999 on July 25, 2012, 08:38:38 pm
econ = no aircon

press auto and turn the knob down (anti clockwise)
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: vag12 on July 25, 2012, 08:52:40 pm
But should ot start working from cold start?
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: Apollo on July 25, 2012, 08:55:02 pm
Cold air should be available almost instantly .....
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: edd666999 on July 25, 2012, 08:57:26 pm
providing the engine is running i think.
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: Johnny_tro on July 25, 2012, 09:10:26 pm
30 seconds, should be cold.

AUTO Button < what exactly does this do?
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: Apollo on July 25, 2012, 09:16:17 pm
30 seconds, should be cold.

AUTO Button < what exactly does this do?

The auto button when lit keeps the inside of the car at the selected temperature.....engine has to be running for air con to work.
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: jedi-knight83 on July 25, 2012, 09:22:38 pm
my aircon takes ages to come in too.. on a hot day about 5-10 mins before I get cooled air.

when it eventually comes though its nice and cold
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: Johnny_tro on July 25, 2012, 09:23:05 pm
So, when the ECON is off and temp are all low - this is as cold as you can get it.....

Would the AUTO button make it colder?

Do you use the circulation button when the aircon is on?
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: GrayMK5GTI on July 25, 2012, 09:26:47 pm
my aircon takes ages to come in too.. on a hot day about 5-10 mins before I get cooled air.

when it eventually comes though its nice and cold

Get it re-gassed mate. Will make a huge difference  :happy2:
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: jedi-knight83 on July 25, 2012, 09:54:10 pm
my aircon takes ages to come in too.. on a hot day about 5-10 mins before I get cooled air.

when it eventually comes though its nice and cold

Get it re-gassed mate. Will make a huge difference  :happy2:

you say that... but the OP just had his gassed and still takes a while to come in.

i wonder if my (and his) compressor are on the way out and it takes them a while to pump the coolant or something?

when it gets going its nice and cold
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: vag12 on July 25, 2012, 10:01:24 pm
my aircon takes ages to come in too.. on a hot day about 5-10 mins before I get cooled air.

when it eventually comes though its nice and cold

Get it re-gassed mate. Will make a huge difference  :happy2:

you say that... but the OP just had his gassed and still takes a while to come in.

i wonder if my (and his) compressor are on the way out and it takes them a while to pump the coolant or something?

when it gets going its nice and cold

yeah it does seem so because it actually takes a long time for me to get cooled air and yes i did just get it regassed
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: skard on July 25, 2012, 10:07:24 pm
Vag12 - did you just top it up, or have it fully vacuumed then completely regassed?

Until recently mine was coldish after a few minutes, after an aircon service it is cold instantly now.
Title: Re: How long does te AC take to kick in from cold start also what is the econ button
Post by: Squeeguk on July 25, 2012, 10:24:48 pm
Depends on how hot the car itself is when you start it.

It takes a while to cool down the evaporator before you get cold air coming out. I normally put it on and open the windows for a little while to get the hot air out of the cabin if it's been standing in the sun. If you use recirculate, it should cool down quicker too once the hot air is out of the car as it is re cooling the cooler air inside.

Keep in mind, you are sucking in the hot air under the bonnet when starting up. This needs to be cooled too. Once on the move cooler air starts to flow into there making life easier for the system.