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From: Scion on 7 Jul 2010 06:41
John wrote:
> "Tony (UncleFista)" <unclefista(a)SPAMMENOTblueyonder.co.uk> wrote in
> message news:gCkYn.93429$YG4.75948(a)newsfe10.ams2...
>>
>> "Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote in message
>> news:wfYXn.75127$m87.8321(a)hurricane...
>>> It is a better job to get it recharged properly, with it vaccumed
>>> out and refilled with the right amount. 35 - 70 quid depending
>>> where you go.
>>
>> Kwik-fit have regular offers of half-price recharges, from �50 to
>> �25. If you ring your local branch and ask to speak to the "AC
>> bloke" and tell him you've seen an ad for half-price recharge,
>> rather than losing a customer they'll do it for �25.
>>
>> At least in my (and a couple of mates) experience..
>>
>>
>> --
>>
>> Tony Bond / UncleFista
>>
>> www.bradford7.co.uk
>>
>> Love is like a snowmobile, speeding across the frozen tundra.
>> Which suddenly flips, pinning you underneath.
>> At night the ice-weasels come...
>>
>
>
>
> the kit they use creates a vacuum - this boils off any moisture - it
> also checks for leaks.
>
> seems a good process - it is also programmed to suit the model of car.


<fx> Boggles at people on this NG recommending Kwik Fit </fx>


From: Mike G on 7 Jul 2010 12:59

"Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote in message
news:Qv1Zn.178942$Hs4.156830(a)hurricane...

> mind you one of my customers went to kwik fit for an aircon recharge,
> after about an hour they said they did not know why it would not work. I
> look forward to seeing the car in a month or so for its mot, I'll check
> out the aircon then and see what is really up.

In your earlier post you said there will be some moisture in the system.
I can understand how that can occur if all the gas escapes, but if the A/C
system is still working, allbeit at reduced efficiency, how does moisture
enter a system that must still contains pressure? Appears illogical.
Mike


From: Mrcheerful on 7 Jul 2010 14:04
Mike G wrote:
> "Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote in message
> news:Qv1Zn.178942$Hs4.156830(a)hurricane...
>
>> mind you one of my customers went to kwik fit for an aircon recharge,
>> after about an hour they said they did not know why it would not
>> work. I look forward to seeing the car in a month or so for its
>> mot, I'll check out the aircon then and see what is really up.
>
> In your earlier post you said there will be some moisture in the
> system. I can understand how that can occur if all the gas escapes,
> but if the A/C system is still working, allbeit at reduced
> efficiency, how does moisture enter a system that must still contains
> pressure? Appears illogical. Mike

not actually, when the air con runs with a reduced charge it can go into
negative pressure on the suction side of the pump, it then draws in
air/moisture anywhere it can, through joints and even through the rubber
hose itself.


From: mr p on 7 Jul 2010 16:04
On 3 July, 23:27, "Mike G" <miktool...(a)miktoolman.plus.com> wrote:
> A/C is not as cool as it should be. Probably just needs regassing. Any
> reason why I shouldn't use a kit and save a few quid? And are some kits
> better than others?
> There seems quite a selection of different types available.
> Car is an E39 528i if it makes any difference.
> TIA.
> Mike.

I stumped up £70 to get mine re-charged but ended up with a new
condensor and no additional charge for 2nd re-gas.
Mine didn't seem to work at all though, and had been ok with out a
charge for at least 4 years before then.
From: Mike G on 7 Jul 2010 16:33

"Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote in message
news:0l3Zn.178946$Hs4.61291(a)hurricane...
> Mike G wrote:
>> "Mrcheerful" <nbkm57(a)hotmail.co.uk> wrote in message
>> news:Qv1Zn.178942$Hs4.156830(a)hurricane...
>>
>>> mind you one of my customers went to kwik fit for an aircon recharge,
>>> after about an hour they said they did not know why it would not
>>> work. I look forward to seeing the car in a month or so for its
>>> mot, I'll check out the aircon then and see what is really up.
>>
>> In your earlier post you said there will be some moisture in the
>> system. I can understand how that can occur if all the gas escapes,
>> but if the A/C system is still working, allbeit at reduced
>> efficiency, how does moisture enter a system that must still contains
>> pressure? Appears illogical. Mike
>
> not actually, when the air con runs with a reduced charge it can go into
> negative pressure on the suction side of the pump, it then draws in
> air/moisture anywhere it can, through joints and even through the rubber
> hose itself.

I can understand how negative pressure could allow moisture to be drawn in,
but would the system still work if that were the case?.
If one accepts that the performance of auto A/C systems usually deteriorate
over years because of gradual gas loss, it would seem logical that if one
adds gas before negative pressure allows moisture into the system, that a
full purge of the system and refill can be avoided without detriment to the
system.
Mike.


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