Air Con Advice Please

[davewill]

Sorry guys, its an air con question again, but i would be grateful for thoughts

 

I have a 2006 TDI 115 model with "basic" air con (i.e turn the knob to cold not computer set)

 

Had it regassed last week for first time, and it was cold when done

 

However by today there was no cold just normal warmish air

 

Took it back, had it regassed, checked for leaks and none came up on recharging machine

 

Drove it away and it still doesn't feel like cold air

 

Therefore do you think this indicates compressor problem, or is there something else that could stop the air getting cold?

 

Thanks

[Bigjeeze]

It is possible it's a pressure switch fault - There is a low and high pressure switch - Have a look in the FAQ's etc.

[RADIOTWO]

Sorry guys, its an air con question again, but i would be grateful for thoughts

 

I have a 2006 TDI 115 model with "basic" air con (i.e turn the knob to cold not computer set)

 

Had it regassed last week for first time, and it was cold when done

 

However by today there was no cold just normal warmish air

 

Took it back, had it regassed, checked for leaks and none came up on recharging machine

 

Drove it away and it still doesn't feel like cold air

 

Therefore do you think this indicates compressor problem, or is there something else that could stop the air getting cold?

 

Thanks

 

Hi Dave

 

Has been said it could be switches, but you said you took it back and regassed, so gives impresion of leak, but did they not

do a vaccume on the system, which will show a leak

 

Radiotwo

[davewill]

Radiotwo

 

Hi

 

Yes they did a "leak test" and nothing showed up

 

I did notice last night that after i had been driving it for about 10 mins i did start to get cooler air through the vents. I turned off air con and felt temp of "normal air" then switched air con back on to see if cooler. I suppose in all honesty it was a bit but not majorly colder, so i think there is a problem somewhere

 

So i suppose bottom line is:

 

If there is no leak and the gas if fully recharged, why does it not produce very cold air???

[Willie Krashitt]

I am now worried that a 3 year old car is suffering similar symptoms to the 8 year old one I sold recently, as my 'new' one is an 06 as well, and just out of warranty.

My previous Galaxy had no cold air from air con, despite there being no leaks. A local air con specialist (great service from The Garage at Blakesley, Northamptonshire) had gauges on high and low pressure ports, which showed that with compressor running, there was no pressure difference across the ports, ie. the compressor wasn't compressing. I ended up getting a new compressor, and the guy also advised on a new condenser and expansion valve while the system was empty of gas.

 

Recharged system was perfect from the off, and current owner says it is still working well.

 

Time to start saving up.

 

George.

[Steven.Langdale]

Sorry guys, its an air con question again, but i would be grateful for thoughts

 

I have a 2006 TDI 115 model with "basic" air con (i.e turn the knob to cold not computer set)

 

Had it regassed last week for first time, and it was cold when done

 

However by today there was no cold just normal warmish air

 

Took it back, had it regassed, checked for leaks and none came up on recharging machine

 

Drove it away and it still doesn't feel like cold air

 

Therefore do you think this indicates compressor problem, or is there something else that could stop the air getting cold?

 

Thanks

 

 

Can you be a bit clearer, you took it back and had it re-gassed, does that mean it was empty again?

 

If so, you have a leak.

 

They don't always show up easily on a vaccum test, I had a leak on the hight pressure side on mine (with the pipe off and one end blocked you coul dblow down it and hear the hissing) and it managed to maintain a vaccum. I'm assuming the vaccum sucked the crud over the hole to seal it and blowing pushed it back out again.

 

Steven

[Willie Krashitt]

Good aircon "specialists" will pressurise the aircon system with a nitrogen/hydrogen gas mix, and use a "sniffer" to pinpoint any tiny leaks. Using this, the Garage found an incredibly small leak from a pipe on one of my cars. Car had passed vacuum leak checks and held pressure for 3-4 weeks, even longer if aircon not used. Changed pipe cured fault completely.

 

George.

[roy202]

Sorry guys, its an air con question again, but i would be grateful for thoughts

 

I have a 2006 TDI 115 model with "basic" air con (i.e turn the knob to cold not computer set)

 

Had it regassed last week for first time, and it was cold when done

 

However by today there was no cold just normal warmish air

 

Took it back, had it regassed, checked for leaks and none came up on recharging machine

 

Drove it away and it still doesn't feel like cold air

 

Therefore do you think this indicates compressor problem, or is there something else that could stop the air getting cold?

 

Thanks

 

you can tell if the compressor is working by looking down and see if its spinning when the air con is turned on, if its not then either a pressure fault ie a leak , an electric fault to the compressor or the compressor itself , need to start there really and illiminate each fault as you go

[davewill]

Thanks for your advice guys

 

Have driven it round for a couple of days now, and it feels like the air is colder than normal air being blown through, although not much cooler

 

Took it back to Kwik Fit today and they checked it on their machine for leaks but said none found

 

They re gassed it again (free of charge) and said give it another go

 

Just one query i have is that i presume my model (2006 Mkll 1.9TDI Zetec with AC Button and Manual Blue to Red dials) is a Single standard aircon and needs 700 +50g coolant, as opposed to dual aircon that needs 1000 + 50g

 

I looked at the label under the bonnet and it gives both pressures, but nowhere does it say whether mine is standard or dual (however as above i do assume its standard)

 

Thanks

[roy202]

Thanks for your advice guys

 

Have driven it round for a couple of days now, and it feels like the air is colder than normal air being blown through, although not much cooler

 

Took it back to Kwik Fit today and they checked it on their machine for leaks but said none found

 

They re gassed it again (free of charge) and said give it another go

 

Just one query i have is that i presume my model (2006 Mkll 1.9TDI Zetec with AC Button and Manual Blue to Red dials) is a Single standard aircon and needs 700 +50g coolant, as opposed to dual aircon that needs 1000 + 50g

 

I looked at the label under the bonnet and it gives both pressures, but nowhere does it say whether mine is standard or dual (however as above i do assume its standard)

 

Thanks

 

i would personly stay away from kwik fit, if you need to know the amount of coolent i would phone ford and they should be able to tell you or any good garage that does air con, in the mk2 1.9 tdi it was 725g +25 im not sure about the mk3

[davewill]

Roy

 

It is a Mkll (2006 last of the Mkll models)

 

It was the question of whether it is standard or dual a/c that i was checking

 

Thanks

 

Actually have been quite impressed with Kwik Fit

 

One off price of

[mikej]

Hi davewill , you have the very same symptoms as me, firstly i had quick fit check mine out for leaks as i was loosing all the gas after about two months, they found none. I located the leak to the condensor top (very common ) replaced the condensor drier and the gas stopped leaking so i would take their word with a pinch of salt. After a week or so the cool air stopped, compressor still kicks in and spins with no horrible noises and the gas is there but i have now been informed by a couple of people who have come across this fault before that the compressor is stuffed, i can get one for approx

[rjhwuk]

A system with rear a/c will have a pair of refrigerant pipes running to the rear of the vehicle. These will be in addition to the two coolant pipes that also run to the rear heater. As a guide with system at normal operating temperature, coolant pipes will be one hot one warm/hot. A/C pipes one warm/hot and the other cold.

 

In these circumstances you need to compare how much gas has been removed with what was put in to establish the extent of any leak. Kwik-Fit should be able to tell you this as it will be on the print out.

 

Hope this helps, RHW

[mikej]

Well i just replaced the aircon compressor today and added 725g + 25g of gas ( i have climate with control for front and for rear together with pipes running under the the car to rear ) my aircon is now ice cold and working a treat 4.4 degress Cel luvvvvvvly. I have had several people say i have dual aircon but i do not i honestly believe if like suggested on here you don't have rear roof vents then you don't have dual aircon and the lower value of gas is needed. If you put the higher volume in it will bugger the compressor and proberly stall the car in the process ? lets just see if i can get the summer out of it, you live in hope lol.... :(

[NikpV]

 

anybody have a clutch plate like this not being used(thanks Mikej for looking)

Edited May 6, 2009 by NikpV

[davewill]

Well i'll be blowed!!

 

After reading copius notes on the forum on Air Con problems, one jerked my memory as it talked about the unit being "over gassed"

 

Thinking back the guy at Kwik Fit said i'll put a bit extra in it as its a big car

 

So, took it back again today and said there is no cold air coming out, please check and re gas to 725 + 25 as its the single air con unit

 

The guy did, and after 20 mins said OK fixed now

 

Drove it away and whey hey, ice cold air coming through

 

Only bonus was it has now been re gassed 3 times in 2 months all for