El Dingo Posted July 2, 2006 Report Posted July 2, 2006 All this talk about air con and the very hot weather here down south made me think, because the wife's been complaining that the Galaxy air con isn't as good as it was on her old Audi A4. So I went out for a drive in it yesterday. The front air con really is'nt very cold is it... But the rear vents blow nice chilled air!Now, this is a combined system with second evaporator, so I don't think I've got a faulty system. I'm going to plug into VAG-COM this afternoon to see if there are any faults. I suspect, however, that this is 'normal' Galaxy. Think I'll turn off the rear cooling too, and see if it gets any colder in the front... :P Quote
El Dingo Posted July 2, 2006 Author Report Posted July 2, 2006 I have two fault codes: 00792 - A/C Pressure switch (F129)35-10 - - - Intermittent 00631 - Communications/Connection AC <-> Motronic30-10 - Open or Short to B+ - Intermittent (Luckily it's still under warranty.) :P Quote
Alhambra Posted July 2, 2006 Report Posted July 2, 2006 Will it need to be re-gassed after replacing the sensor?... i would assume so. Quote
Ogben Schmutzel Posted July 2, 2006 Report Posted July 2, 2006 You pipped me to the question - I am wondering that too!! And what is the effect of a fulty pressure switch?? Can you lose gas, or does it just affect cooling ability? Cheers.Oggy. Quote
jkspoff Posted July 2, 2006 Report Posted July 2, 2006 Mine needed regassing due to a condenser leak, but I believe that if the switch is replaced it needs to be regassed due to the positioning of it on the pipe, but I may be wrong.The pressure switch cuts off the compressor if the pressure is too high or low, to protect it from damage. My pressure switch was switching on and off for no apparent reason, so was replaced. Info: High-Pressure Cutoff Switch (346310) Removal 1. Raise and support the vehicle. 2. Disconnect the high-pressure cutoff switch electrical connector. 3. Remove the high-pressure cutoff switch. Discard the O-ring seal. Installation 1. Install new high-pressure cutoff switch O-ring seal. Coat the high-pressure cutoff switch O-ring seal in clean refrigerant oil prior to installation. To install, reverse the removal procedure. Quote
MrT Posted July 3, 2006 Report Posted July 3, 2006 Doesn't the pressure switch fault code 00792 mean that the pressure switch was activated due to incorrrect pressure rather than the pressure switch is faulty? In the past I have found that intermittant open/short problems have usually been caused by maintenance rather than a fault, after clearing them they remain clear. Quote
jkspoff Posted July 3, 2006 Report Posted July 3, 2006 Doesn't the pressure switch fault code 00792 mean that the pressure switch was activated due to incorrrect pressure rather than the pressure switch is faulty? In the past I have found that intermittant open/short problems have usually been caused by maintenance rather than a fault, after clearing them they remain clear. My thoughts exactly, however not entirely sure, when the switch was replaced the fault code went and all was well (i'm sure its yet another component that can possibly fail). Pressure in system was checked and found to be ok, apparently the switch can be damaged by constant switching on/off due to low or high pressures over time, so maybe faulty switch, but who knows with this poor designed system ! Only time will tell if my repair is long or short term, at least I now have 12 months warranty on switch and condenser thats just been replaced. But sods law it will be another component that goes wrong next, lets hope it sees summer out, with temperatures at 31C+ today for UK we need A/C ! Quote
Masked Marauder Posted July 3, 2006 Report Posted July 3, 2006 The back vents use the same compressor gas etc as the front vents. I think the OP has a problem with his flaps! Quote
El Dingo Posted July 7, 2006 Author Report Posted July 7, 2006 The wierd thing is, the garage called yesterday to say that they found the problem - a corroded and leaking dryer. This would explain the pressure switch fault code - viz - low pressure in the system. Maybe the rear vents normally blow colder? They'll fit the new dryer today, so we'll see what happens... Quote
El Dingo Posted July 8, 2006 Author Report Posted July 8, 2006 Got the car back today. The garage replaced the drier, re-set the panel and re-gassed. The result - VERY nice VERY chilled air :lol: - as good as I get in my Audi A4. Front and rear vents feel as cold as each other, so maybe my feeling the rear was colder was 'psychological'. I wonder how long it can last... :blink: Quote
Ogben Schmutzel Posted July 8, 2006 Report Posted July 8, 2006 I wonder how long it can last... :blink: A few years at least!! It seems that is the best we can hope for with these vehicles!! Congrats. Oggy. Quote
El Dingo Posted July 17, 2006 Author Report Posted July 17, 2006 Gaaaah! Got in the Galaxy to pop out to the shops this evening...Panel flashing - no cold air! :D Ah well, back to the garage. :( Quote
Ogben Schmutzel Posted July 17, 2006 Report Posted July 17, 2006 Same as me - works fine for a bit then gone. No sign of where the loss is and despite many efforts with sniffers and that squirty leak detection stuff I am getting nowhere. Regards.Oggy. Quote
iainkirk Posted July 17, 2006 Report Posted July 17, 2006 I re-gassed my aircon today with a DIY R134 refill/oil/seal cartridge from Halfords for Quote
Ogben Schmutzel Posted July 17, 2006 Report Posted July 17, 2006 Shame that you are thinking about selling due to the high running/repair costs but have to admit that I am going there too. Oggy. Quote
Bigjeeze Posted July 18, 2006 Report Posted July 18, 2006 I re-gassed my aircon today with a DIY R134 refill/oil/seal cartridge from Halfords for Quote
Ogben Schmutzel Posted July 18, 2006 Report Posted July 18, 2006 Maybe it's a luck thing?I think that if *all* Shalaxy owners could be surveyed then the majority, probably the vast majority, would not have had aircon problems. Its just that in the main this forum is frequented by people with problems and of those a good proportion are with aircon. Maybe you are lucky in that you use this forum, probably because at some time you had a problem and it was NOT aircon. I think I Quote
El Dingo Posted July 18, 2006 Author Report Posted July 18, 2006 I understood, Oggy.... Um, the bit where you said, if he had a problem... Um... :huh: Quote
iainkirk Posted July 18, 2006 Report Posted July 18, 2006 My company car scheme pays me 12p per business mile but I get back 40p for the first 10K miles (less the 12p) from the tax man and then 25p for the miles after that (again less the 12p). SO I get paid for not having a company car, then paid for the fuel I use. My Air con is working so far, the cars done 97k and still going strong. My older Gal has 130 odd K on the clok and the aircon is icy cold. Maybe it's a luck thing? You don't get 40p back off the taxman or 25p - you get tax relief on the difference between the rate you are paid (12p) and 40p or 25p per mile. ie, if you're a 22% tax payer, you get 6.16p/mile back for the first 10000 miles and 2.86p/mile for the remainder. For 40% tax band, the figures are 11.2p and 5.2p/mile respectively. Mine's funded the same way: Car allowance, mileage rate and tax relief. Tax relief only works for temporary locations of course. If you work in a permanent location, it's not reclaimable. Quote
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