HELP! VW Golf air conditioning not cooling

civildefence

Any help appreciated here folks

I have a 04 Golf V 1.6 Comfortline
When i turn on the AC, no cold air. The AC pump kicks in alright but the air temp is just like what you get from the fan. I noticed a while back that the air only cooled after leaving the AC running for a few mins but now nothing at all. Could the refrigerant be low or do I have a bigger problem?

Thanks in advance

Gary ITR

civildefence wrote: »

Any help appreciated here folks

I have a 04 Golf V 1.6 Comfortline
When i turn on the AC, no cold air. The AC pump kicks in alright but the air temp is just like what you get from the fan. I noticed a while back that the air only cooled after leaving the AC running for a few mins but now nothing at all. Could the refrigerant be low or do I have a bigger problem?

Thanks in advance

The refrigerant could be low or you could have a leaky pipe. You should have your system pressure tested and refilled

civildefence

Cheers mate, is that a big job or could i do it myself do you know?

HighMan

You can get diy kits in most good motor factors.

civildefence

Lovely stuff, thanks lads much obliged

Anan1

There's a guy calle John Kenealy on Bancroft Rd in Tallaght who does car air con repair & refilling - i'd use him, from memory he only charges around €60. He's mobile too.

Hal1

Change pollen filter also. I done mine recently as it was manky, the results were cool, clean air. :cool:

Slidey

Mk4 golfs have a problem with the climate control system.

There is little motors/ solenoids that control the flaps in the air box. These give trouble.

I also had a problem with mine. I thought the refrigerant was low but it was the fuse for the a/c cooling fan that was faulty.

It is in a box on top of the battery, fairly obvious if it is gone.

civildefence

Ok, got a can of R134a refrigerant, complete with hose, gauge and tap. Cost me a ridiculous €50 from the motor factors but thought at least it'll sort it.
So followed the instructions, found the low side port and connected it up. To my horror, the gauge automatically went to red (around 75 psi as opposed to the 25 psi its supposed to be). On the can it says "if the gauge reads in the red, do not add refrigerant! You have more serious problems with your AC and it should be repaired only by a certified technician".

So i guess thats the end of the DIY and a waste of €50. Anyone have any ideas as to what else could be wrong?
Thanks

quarryman

Well its not a waste of €50 since you didn't use it right?

Get John Kenealy who was mentioned above. He came out and sorted mine out. Nice guy too.

Slidey

Is your outside aircon radiator fan cutting in when you turn it on?

Have you checked the fuse that is on top of the battery?

civildefence

There are 2 fans on the radiator, one smaller than the other and neither is coming on when i turn on the aircon, when i turn it on the engine runs slightly faster but I can't hear anything from the compressor. I have checked all the fuses inside and out and they're fine.

By the way it's a Mark 5 not a Mark 4. Cheers

crosstownk

It sounds like the system is gassed up correctly so it would appear that you have a different faulty. Best to get a pro to look at it at this stage.

civildefence wrote:

There are 2 fans on the radiator, one smaller than the other and neither is coming on when i turn on the aircon

Nothing to do with your aircon.

dodzy

civildefence wrote: »

Ok, got a can of R134a refrigerant, complete with hose, gauge and tap. Cost me a ridiculous €50 from the motor factors but thought at least it'll sort it.
So followed the instructions, found the low side port and connected it up. To my horror, the gauge automatically went to red (around 75 psi as opposed to the 25 psi its supposed to be). On the can it says "if the gauge reads in the red, do not add refrigerant! You have more serious problems with your AC and it should be repaired only by a certified technician".

So i guess thats the end of the DIY and a waste of €50. Anyone have any ideas as to what else could be wrong?
Thanks

Tell me you ran the A/C on full power while pressure testing ? I did my A4 last week. Read 45-50% when off. Read 20% when running. It took the whole can ( €29.99 ) from Halfords. Now running fine.

x in the city

do these diy kits repair holes in pipes?

my mondeo has a leaky pipe on the ac.... i got the said pipe but too much hassle to fit.

civildefence

dodzy wrote: »

Tell me you ran the A/C on full power while pressure testing ? I did my A4 last week. Read 45-50% when off. Read 20% when running. It took the whole can ( €29.99 ) from Halfords. Now running fine.

I did indeed, and I avoided halfords thinking they'd be dearer and ended up paying more, such is life.

homerjay2005

BUMP....

posting this for a friend who has the same problem, he sent via email to me, any ideas?

"Hi Civildefence,

I have the exact same problem as you had. Aircon is not working on my mk V golf and when I tried a regas the pressure was in the red. Can you remember what solved your problem?