Clearly the aircon on the Tdi 300 Disco has a thermostat - I can hear it clicking in and out when it's on the coldest setting. Trouble is, coldest setting isn't cold enough, is there an over-ride somewhere I can adjust? TonyB
I wonder if it's in need of a recharge? Ours was baltic when first recharged and then slowly took longer to come in to play and was just cool towards the end.
Yep, when I had mine fixed a couple of years back the guy stuck a temp probe into the air vent and was not happy until it was in single figures. If yours isn't cold enough then there is probably something wrong.
I'd agree about recharging - had mine done in the Disco a couple of years ago and it made a huge difference. You didn't notice the drop in performance until it was restored to normal levels.
Is it a thermostat on the aircon pump? I though it was just done on pressure? As far as I can tell from my unit here in Zimbabwe, the amount of time it is actally driving doesn't vary much with temperature.
Todays, £52 sumat, last one as £70 Both done on the drive at home, this chap was on recommendation and more akin to Refigeration units with cars as a side line.
Defo worth shopping around, could even be done at work if theres a power socket near to the car.
Power socket? My guy says the cost of the can of refrigerant R134A is about
1.50 USD. He ran the engine then coupled the can to the aircon L point and said it would suck in what it needed. Took about 10 mins and he said the can was nearly empty. It was a US 12oz can and my Disco is supposed to take 6 English ounces.
He didn't charge me but I gave him a tenner and a couple of bottles of decent English ale.
Haven't heard from him since, must pop round and check he's OK....
On my system both times as it was empty the chap vac'd the system to ensure it held pressure. I'm also assured that this is the best process. The Vac tool required plugging in. Though I'm sure could be run off an Inverter if the need arose and the geezer had one.
Doing it the way you have, you can buy refill cans off ebay / at auto stores if you just need to top up an already semi filled system.
We pressurise our stuff with nitrogen before we vac, before we fill with HCFC, because its much easier to see leaks ! Our systems have held gas for 20 years without leaks, but then our pumps are hermetically sealed units, and don't have a rotating shaft coming through the walls
Then vaccing out is good because it dries out the system, and water vapour is the enemy of efficient refrigeration, and once vacced off, you can check for leaks.
Was looking on Ebay for the valve adapters yesterday, and they can be had for less than a tenner, so I must do our car too.
And how much is a replacement compressor, when yours seizes because the oil in the system wasn't replenished at the same time as the refrigerant? I'd much rather pay a decent aircon specialist to charge the system properly, than save a few pennies using snake oil and then have to replace most of the system at a later date.
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